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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Mini-os updates from Grzegorz Milos.
# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 189c87adf876df8ed7b84afb5ac69e09465cdaf1
# Parent 287583627544a984c89ff5ec6b44ec2c73187838
Mini-os updates from Grzegorz Milos.
diff -r 287583627544 -r 189c87adf876 extras/mini-os/Makefile
--- a/extras/mini-os/Makefile Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/Makefile Wed Jul 6 10:46:29 2005
@@ -1,11 +1,12 @@
+debug ?= y
-CC := gcc
-LD := ld
+include $(CURDIR)/../../Config.mk
-TARGET_ARCH := $(shell uname -m | sed -e s/i.86/x86_32/)
+# Set TARGET_ARCH
+override TARGET_ARCH := $(XEN_TARGET_ARCH)
# NB. '-Wcast-qual' is nasty, so I omitted it.
-CFLAGS := -fno-builtin -O3 -Wall -Ih/ -Wredundant-decls -Wno-format
+CFLAGS := -fno-builtin -Wall -Werror -Iinclude/ -Wredundant-decls -Wno-format
CFLAGS += -Wstrict-prototypes -Wnested-externs -Wpointer-arith -Winline
ifeq ($(TARGET_ARCH),x86_32)
@@ -19,23 +20,25 @@
LDFLAGS := -m elf_x86_64
endif
+ifeq ($(debug),y)
+CFLAGS += -g
+else
+CFLAGS += -O3
+endif
+
TARGET := mini-os
OBJS := $(TARGET_ARCH).o
OBJS += $(patsubst %.c,%.o,$(wildcard *.c))
OBJS += $(patsubst %.c,%.o,$(wildcard lib/*.c))
-OBJS := $(subst events.o,,$(OBJS))
-OBJS := $(subst hypervisor.o,,$(OBJS))
-OBJS := $(subst time.o,,$(OBJS))
-
-HDRS := $(wildcard h/*.h)
-HDRS += $(wildcard h/xen-public/*.h)
+HDRS := $(wildcard include/*.h)
+HDRS += $(wildcard include/xen/*.h)
default: $(TARGET)
xen-public:
- [ -e h/xen-public ] || ln -sf ../../../xen/include/public h/xen-public
+ [ -e include/xen ] || ln -sf ../../../xen/include/public include/xen
$(TARGET): xen-public $(OBJS)
$(LD) -N -T minios-$(TARGET_ARCH).lds $(OBJS) -o $@.elf
@@ -51,3 +54,4 @@
%.o: %.S $(HDRS) Makefile
$(CC) $(CFLAGS) -D__ASSEMBLY__ -c $< -o $@
+
diff -r 287583627544 -r 189c87adf876 extras/mini-os/traps.c
--- a/extras/mini-os/traps.c Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/traps.c Wed Jul 6 10:46:29 2005
@@ -1,5 +1,6 @@
#include <os.h>
+#include <traps.h>
#include <hypervisor.h>
#include <mm.h>
#include <lib.h>
@@ -37,21 +38,22 @@
#ifdef __x86_64__
esp = regs->rsp;
- ss = regs->ss;
+ ss = regs->xss;
#else
esp = (unsigned long) (®s->esp);
ss = __KERNEL_DS;
- if (regs->cs & 2) {
+ if (regs->xcs & 2) {
+printk("CS is true, esp is %x\n", regs->esp);
esp = regs->esp;
- ss = regs->ss & 0xffff;
+ ss = regs->xss & 0xffff;
}
#endif
- printf("EIP: %04x:[<%p>] %08x\n",
- 0xffff & regs->cs , regs->eip, regs->error_code);
+ printf("EIP: %04x:[<%p>]\n",
+ 0xffff & regs->xcs , regs->eip);
printf("EFLAGS: %p\n",regs->eflags);
- printf("eax: %p ebx: %p ecx: %p edx: %p\n",
+ printf("eax: %08lx ebx: %08lx ecx: %08lx edx: %08lx\n",
regs->eax, regs->ebx, regs->ecx, regs->edx);
- printf("esi: %p edi: %p ebp: %p esp: %p\n",
+ printf("esi: %08lx edi: %08lx ebp: %08lx esp: %08lx\n",
regs->esi, regs->edi, regs->ebp, esp);
#ifdef __x86_64__
printf("r8 : %p r9 : %p r10: %p r11: %p\n",
@@ -60,40 +62,28 @@
regs->r12, regs->r13, regs->r14, regs->r15);
#endif
printf("ds: %04x es: %04x ss: %04x\n",
- regs->ds & 0xffff, regs->es & 0xffff, ss);
+ regs->xds & 0xffff, regs->xes & 0xffff, ss);
}
-static __inline__ void dump_code(unsigned long eip)
-{
- unsigned char *ptr = (unsigned char *)eip;
- int x;
-
- printk("Bytes at eip: ");
- for ( x = -4; x < 5; x++ )
- printf("%02x ", ptr[x]);
- printk("\n");
-}
-
-static void __inline__ do_trap(int trapnr, char *str,
- struct pt_regs * regs)
-{
- printk("FATAL: Unhandled Trap %d (%s)\n", trapnr, str);
- dump_regs(regs);
- dump_code(regs->eip);
+static void do_trap(int trapnr, char *str, struct pt_regs * regs, unsigned
long error_code)
+{
+ printk("FATAL: Unhandled Trap %d (%s), error code=0x%lx\n", trapnr, str,
error_code);
+ printk("Regs address %p\n", regs);
+ dump_regs(regs);
do_exit();
}
#define DO_ERROR(trapnr, str, name) \
-void do_##name(struct pt_regs * regs) \
+void do_##name(struct pt_regs * regs, unsigned long error_code) \
{ \
- do_trap(trapnr, str, regs); \
+ do_trap(trapnr, str, regs, error_code); \
}
#define DO_ERROR_INFO(trapnr, str, name, sicode, siaddr) \
-void do_##name(struct pt_regs * regs) \
+void do_##name(struct pt_regs * regs, unsigned long error_code) \
{ \
- do_trap(trapnr, str, regs); \
+ do_trap(trapnr, str, regs, error_code); \
}
DO_ERROR_INFO( 0, "divide error", divide_error, FPE_INTDIV, regs->eip)
@@ -109,13 +99,11 @@
DO_ERROR_INFO(17, "alignment check", alignment_check, BUS_ADRALN, 0)
DO_ERROR(18, "machine check", machine_check)
-extern unsigned long virt_cr2;
-void do_page_fault(struct pt_regs *regs)
-{
- unsigned long addr = virt_cr2;
+void do_page_fault(struct pt_regs *regs, unsigned long error_code,
+
unsigned long addr)
+{
printk("Page fault at linear address %p\n", addr);
dump_regs(regs);
- dump_code(regs->eip);
#ifdef __x86_64__
{
unsigned long *tab = (unsigned long *)start_info.pt_base;
@@ -126,35 +114,33 @@
page = tab[l4_table_offset(addr)];
tab = __va(mfn_to_pfn(pte_to_mfn(page)) << PAGE_SHIFT);
printk(" L4 = %p (%p)\n", page, tab);
- if ( !(page & _PAGE_PRESENT) )
+ if ( !(page & AGERESENT) )
goto out;
page = tab[l3_table_offset(addr)];
tab = __va(mfn_to_pfn(pte_to_mfn(page)) << PAGE_SHIFT);
printk(" L3 = %p (%p)\n", page, tab);
- if ( !(page & _PAGE_PRESENT) )
+ if ( !(page & AGERESENT) )
goto out;
page = tab[l2_table_offset(addr)];
tab = __va(mfn_to_pfn(pte_to_mfn(page)) << PAGE_SHIFT);
printk(" L2 = %p (%p) %s\n", page, tab,
- (page & _PAGE_PSE) ? "(2MB)" : "");
- if ( !(page & _PAGE_PRESENT) || (page & _PAGE_PSE) )
+ (page & AGESE) ? "(2MB)" : "");
+ if ( !(page & AGERESENT) || (page & AGESE) )
goto out;
page = tab[l1_table_offset(addr)];
printk(" L1 = %p\n", page);
}
#endif
- out:
- do_exit();
-}
-
-void do_general_protection(struct pt_regs *regs)
-{
- printk("GPF\n");
- dump_regs(regs);
- dump_code(regs->eip);
+ do_exit();
+}
+
+void do_general_protection(struct pt_regs *regs, long error_code)
+{
+ printk("GPF %p, error_code=%lx\n", regs, error_code);
+ dump_regs(regs);
do_exit();
}
@@ -172,7 +158,6 @@
{
printk("Copro error\n");
dump_regs(regs);
- dump_code(regs->eip);
do_exit();
}
@@ -196,28 +181,25 @@
* The 'privilege ring' field specifies the least-privileged ring that
* can trap to that vector using a software-interrupt instruction (INT).
*/
-#ifdef __x86_64__
-#define _P 0,
-#endif
static trap_info_t trap_table[] = {
- { 0, 0, __KERNEL_CS, _P (unsigned long)divide_error },
- { 1, 0, __KERNEL_CS, _P (unsigned long)debug },
- { 3, 3, __KERNEL_CS, _P (unsigned long)int3 },
- { 4, 3, __KERNEL_CS, _P (unsigned long)overflow },
- { 5, 3, __KERNEL_CS, _P (unsigned long)bounds },
- { 6, 0, __KERNEL_CS, _P (unsigned long)invalid_op },
- { 7, 0, __KERNEL_CS, _P (unsigned long)device_not_available },
- { 9, 0, __KERNEL_CS, _P (unsigned long)coprocessor_segment_overrun },
- { 10, 0, __KERNEL_CS, _P (unsigned long)invalid_TSS },
- { 11, 0, __KERNEL_CS, _P (unsigned long)segment_not_present },
- { 12, 0, __KERNEL_CS, _P (unsigned long)stack_segment },
- { 13, 0, __KERNEL_CS, _P (unsigned long)general_protection },
- { 14, 0, __KERNEL_CS, _P (unsigned long)page_fault },
- { 15, 0, __KERNEL_CS, _P (unsigned long)spurious_interrupt_bug },
- { 16, 0, __KERNEL_CS, _P (unsigned long)coprocessor_error },
- { 17, 0, __KERNEL_CS, _P (unsigned long)alignment_check },
- { 18, 0, __KERNEL_CS, _P (unsigned long)machine_check },
- { 19, 0, __KERNEL_CS, _P (unsigned long)simd_coprocessor_error },
+ { 0, 0, __KERNEL_CS, (unsigned long)divide_error },
+ { 1, 0, __KERNEL_CS, (unsigned long)debug },
+ { 3, 3, __KERNEL_CS, (unsigned long)int3 },
+ { 4, 3, __KERNEL_CS, (unsigned long)overflow },
+ { 5, 3, __KERNEL_CS, (unsigned long)bounds },
+ { 6, 0, __KERNEL_CS, (unsigned long)invalid_op },
+ { 7, 0, __KERNEL_CS, (unsigned long)device_not_available },
+ { 9, 0, __KERNEL_CS, (unsigned long)coprocessor_segment_overrun },
+ { 10, 0, __KERNEL_CS, (unsigned long)invalid_TSS },
+ { 11, 0, __KERNEL_CS, (unsigned long)segment_not_present },
+ { 12, 0, __KERNEL_CS, (unsigned long)stack_segment },
+ { 13, 0, __KERNEL_CS, (unsigned long)general_protection },
+ { 14, 0, __KERNEL_CS, (unsigned long)page_fault },
+ { 15, 0, __KERNEL_CS, (unsigned long)spurious_interrupt_bug },
+ { 16, 0, __KERNEL_CS, (unsigned long)coprocessor_error },
+ { 17, 0, __KERNEL_CS, (unsigned long)alignment_check },
+ { 18, 0, __KERNEL_CS, (unsigned long)machine_check },
+ { 19, 0, __KERNEL_CS, (unsigned long)simd_coprocessor_error },
{ 0, 0, 0, 0 }
};
@@ -227,3 +209,4 @@
{
HYPERVISOR_set_trap_table(trap_table);
}
+
diff -r 287583627544 -r 189c87adf876 extras/mini-os/time.c
--- a/extras/mini-os/time.c Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/time.c Wed Jul 6 10:46:29 2005
@@ -2,10 +2,12 @@
****************************************************************************
* (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
* (C) 2002-2003 - Keir Fraser - University of Cambridge
+ * (C) 2005 - Grzegorz Milos - Intel Research Cambridge
****************************************************************************
*
* File: time.c
* Author: Rolf Neugebauer and Keir Fraser
+ * Changes: Grzegorz Milos
*
* Description: Simple time and timer functions
*
@@ -30,6 +32,7 @@
#include <os.h>
+#include <traps.h>
#include <types.h>
#include <hypervisor.h>
#include <events.h>
@@ -40,9 +43,13 @@
* Time functions
*************************************************************************/
-static unsigned int rdtsc_bitshift;
-static u32 st_scale_f; /* convert ticks -> usecs */
-static u32 st_scale_i; /* convert ticks -> usecs */
+/* Cached *multiplier* to convert TSC counts to microseconds.
+ * (see the equation below).
+ * Equal to 2^32 * (1 / (clocks per usec) ).
+ * Initialized in time_init.
+ */
+static unsigned long fast_gettimeoffset_quotient;
+
/* These are peridically updated in shared_info, and then copied here. */
static u32 shadow_tsc_stamp;
@@ -70,7 +77,7 @@
rmb();
shadow_tv.tv_sec = HYPERVISOR_shared_info->wc_sec;
shadow_tv.tv_usec = HYPERVISOR_shared_info->wc_usec;
- shadow_tsc_stamp = HYPERVISOR_shared_info->tsc_timestamp.tsc_bits;
+ shadow_tsc_stamp = (u32)HYPERVISOR_shared_info->tsc_timestamp;
shadow_system_time = HYPERVISOR_shared_info->system_time;
rmb();
}
@@ -81,22 +88,33 @@
#define TIME_VALUES_UP_TO_DATE \
(shadow_time_version == HYPERVISOR_shared_info->time_version2)
-
-static __inline__ unsigned long get_time_delta_usecs(void)
-{
- s32 delta_tsc;
- u32 low;
- u64 delta, tsc;
-
- rdtscll(tsc);
- low = (u32)(tsc >> rdtsc_bitshift);
- delta_tsc = (s32)(low - shadow_tsc_stamp);
- if ( unlikely(delta_tsc < 0) ) delta_tsc = 0;
- delta = ((u64)delta_tsc * st_scale_f);
- delta >>= 32;
- delta += ((u64)delta_tsc * st_scale_i);
-
- return (unsigned long)delta;
+static u32 get_time_delta_usecs(void)
+{
+ register unsigned long eax, edx;
+
+ /* Read the Time Stamp Counter */
+
+ rdtsc(eax,edx);
+
+ /* .. relative to previous jiffy (32 bits is enough) */
+ eax -= shadow_tsc_stamp;
+
+ /*
+ * Time offset = (tsc_low delta) * fast_gettimeoffset_quotient
+ * = (tsc_low delta) * (usecs_per_clock)
+ * = (tsc_low delta) * (usecs_per_jiffy / clocks_per_jiffy)
+ *
+ * Using a mull instead of a divl saves up to 31 clock cycles
+ * in the critical path.
+ */
+
+ __asm__("mull %2"
+ :"=a" (eax), "=d" (edx)
+ :"rm" (fast_gettimeoffset_quotient),
+ "0" (eax));
+
+ /* our adjusted time offset in microseconds */
+ return edx;
}
s64 get_s_time (void)
@@ -139,6 +157,25 @@
*tv = _tv;
}
+static void print_current_time(void)
+{
+ struct timeval tv;
+
+ get_time_values_from_xen();
+
+ gettimeofday(&tv);
+ printk("T(s=%ld us=%ld)\n", tv.tv_sec, tv.tv_usec);
+}
+
+void block(u32 millisecs)
+{
+ struct timeval tv;
+ gettimeofday(&tv);
+ //printk("tv.tv_sec=%ld, tv.tv_usec=%ld, shadow_system_time=%lld\n",
tv.tv_sec, tv.tv_usec, shadow_system_time );
+ HYPERVISOR_set_timer_op(get_s_time() + 1000000LL * (s64) millisecs);
+ HYPERVISOR_block();
+}
+
/*
* Just a dummy
@@ -146,41 +183,38 @@
static void timer_handler(int ev, struct pt_regs *regs)
{
static int i;
- struct timeval tv;
get_time_values_from_xen();
i++;
if (i >= 1000) {
- gettimeofday(&tv);
- printf("T(s=%ld us=%ld)\n", tv.tv_sec, tv.tv_usec);
+ print_current_time();
i = 0;
}
}
+
void init_time(void)
{
- u64 __cpu_khz, cpu_freq, scale;
+ u64 __cpu_khz;
unsigned long cpu_khz;
__cpu_khz = HYPERVISOR_shared_info->cpu_freq;
+
cpu_khz = (u32) (__cpu_khz/1000);
-
- rdtsc_bitshift = HYPERVISOR_shared_info->tsc_timestamp.tsc_bitshift;
- cpu_freq = HYPERVISOR_shared_info->cpu_freq;
-
- scale = 1000000LL << (32 + rdtsc_bitshift);
- scale /= cpu_freq;
-
- st_scale_f = scale & 0xffffffff;
- st_scale_i = scale >> 32;
printk("Xen reported: %lu.%03lu MHz processor.\n",
cpu_khz / 1000, cpu_khz % 1000);
-
- add_ev_action(EV_TIMER, &timer_handler);
- enable_ev_action(EV_TIMER);
- enable_hypervisor_event(EV_TIMER);
-
-}
+ /* (10^6 * 2^32) / cpu_hz = (10^3 * 2^32) / cpu_khz =
+ (2^32 * 1 / (clocks/us)) */
+ {
+ unsigned long eax=0, edx=1000;
+ __asm__("divl %2"
+ :"=a" (fast_gettimeoffset_quotient), "=d" (edx)
+ :"r" (cpu_khz),
+ "0" (eax), "1" (edx));
+ }
+
+ bind_virq(VIRQ_TIMER, &timer_handler);
+}
diff -r 287583627544 -r 189c87adf876 extras/mini-os/x86_32.S
--- a/extras/mini-os/x86_32.S Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/x86_32.S Wed Jul 6 10:46:29 2005
@@ -1,4 +1,6 @@
#include <os.h>
+#include <xen/arch-x86_32.h>
+
.section __xen_guest
.asciz "XEN_VER=3.0,LOADER=generic,PT_MODE_WRITABLE"
@@ -21,6 +23,7 @@
shared_info:
.org 0x2000
+
ES = 0x20
ORIG_EAX = 0x24
EIP = 0x28
@@ -61,6 +64,31 @@
pushl $do_divide_error
do_exception:
pushl %ds
+ pushl %eax
+ xorl %eax, %eax
+ pushl %ebp
+ pushl %edi
+ pushl %esi
+ pushl %edx
+ decl %eax # eax = -1
+ pushl %ecx
+ pushl %ebx
+ cld
+ movl %es, %ecx
+ movl ES(%esp), %edi # get the function address
+ movl ORIG_EAX(%esp), %edx # get the error code
+ movl %eax, ORIG_EAX(%esp)
+ movl %ecx, ES(%esp)
+ movl $(__KERNEL_DS), %ecx
+ movl %ecx, %ds
+ movl %ecx, %es
+ movl %esp,%eax # pt_regs pointer
+ pushl %edx
+ pushl %eax
+ call *%edi
+ addl $8,%esp
+
+/* pushl %ds
pushl %eax
xorl %eax,%eax
pushl %ebp
@@ -83,7 +111,7 @@
movl %edx,%ds
movl %edx,%es
call *%edi
- addl $8,%esp
+ addl $8,%esp */
ret_from_exception:
@@ -112,19 +140,19 @@
cmpl $ecrit,%eax
jb critical_region_fixup
11: push %esp
-# call do_hypervisor_callback
+ call do_hypervisor_callback
add $4,%esp
movl HYPERVISOR_shared_info,%esi
xorl %eax,%eax
movb CS(%esp),%cl
test $2,%cl # slow return to ring 2 or 3
jne safesti
-safesti:btsl $31,4(%esi) # reenable event callbacks
+safesti:movb $0,1(%esi) # reenable event callbacks
scrit: /**** START OF CRITICAL REGION ****/
- cmpl %eax,(%esi)
- jne 14f # process more events if necessary...
+ testb $0xFF,(%esi)
+ jnz 14f # process more events if necessary...
RESTORE_ALL
-14: btrl %eax,4(%esi)
+14: movb $1,1(%esi)
jmp 11b
ecrit: /**** END OF CRITICAL REGION ****/
# [How we do the fixup]. We want to merge the current stack frame with the
@@ -153,7 +181,7 @@
jmp 11b
critical_fixup_table:
- .byte 0x00,0x00 # cmpl %eax,(%esi)
+ .byte 0x00,0x00,0x00 # testb $0xff,(%esi)
.byte 0x00,0x00 # jne 14f
.byte 0x00 # pop %ebx
.byte 0x04 # pop %ecx
@@ -166,7 +194,7 @@
.byte 0x20 # pop %es
.byte 0x24,0x24,0x24 # add $4,%esp
.byte 0x28 # iret
- .byte 0x00,0x00,0x00,0x00,0x00 # btrl $31,4(%esi)
+ .byte 0x00,0x00,0x00,0x00 # movb $1,1(%esi)
.byte 0x00,0x00 # jmp 11b
# Hypervisor uses this for application faults while it executes.
@@ -220,10 +248,6 @@
pushl $do_coprocessor_segment_overrun
jmp do_exception
-ENTRY(double_fault)
- pushl $do_double_fault
- jmp do_exception
-
ENTRY(invalid_TSS)
pushl $do_invalid_TSS
jmp do_exception
@@ -246,32 +270,30 @@
# This handler is special, because it gets an extra value on its stack,
# which is the linear faulting address.
+# fastcall register usage: %eax = pt_regs, %edx = error code,
+# %ecx = fault address
ENTRY(page_fault)
pushl %ds
pushl %eax
- xorl %eax,%eax
+ xorl %eax, %eax
pushl %ebp
pushl %edi
pushl %esi
pushl %edx
- decl %eax # eax = -1
+ decl %eax /* eax = -1 */
pushl %ecx
pushl %ebx
cld
- movl %es,%ecx
- movl ORIG_EAX(%esp), %esi # get the error code
- movl ES(%esp), %edi # get the faulting address
+ movl %es,%edi
+ movl ES(%esp), %ecx /* get the faulting address */
+ movl ORIG_EAX(%esp), %edx /* get the error code */
movl %eax, ORIG_EAX(%esp)
- movl %ecx, ES(%esp)
- movl %esp,%edx
- pushl %edi # push the faulting address
- pushl %esi # push the error code
- pushl %edx # push the pt_regs pointer
- movl $(__KERNEL_DS),%edx
- movl %edx,%ds
- movl %edx,%es
+ movl %edi, ES(%esp)
+ movl $(__KERNEL_DS),%eax
+ movl %eax, %ds
+ movl %eax, %es
+ movl %esp,%eax /* pt_regs pointer */
call do_page_fault
- addl $12,%esp
jmp ret_from_exception
ENTRY(machine_check)
diff -r 287583627544 -r 189c87adf876 extras/mini-os/hypervisor.c
--- a/extras/mini-os/hypervisor.c Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/hypervisor.c Wed Jul 6 10:46:29 2005
@@ -4,6 +4,7 @@
* Communication to/from hypervisor.
*
* Copyright (c) 2002-2003, K A Fraser
+ * Copyright (c) 2005, Grzegorz Milos, gm281@xxxxxxxxx,Intel Research Cambridge
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@@ -26,65 +27,69 @@
#include <os.h>
#include <hypervisor.h>
+#include <events.h>
-static unsigned long event_mask = 0;
-static unsigned long ev_err_count;
+#define active_evtchns(cpu,sh,idx) \
+ ((sh)->evtchn_pending[idx] & \
+ ~(sh)->evtchn_mask[idx])
void do_hypervisor_callback(struct pt_regs *regs)
{
- unsigned long events, flags;
- shared_info_t *shared = HYPERVISOR_shared_info;
+ u32 l1, l2;
+ unsigned int l1i, l2i, port;
+ int cpu = 0;
+ shared_info_t *s = HYPERVISOR_shared_info;
+ vcpu_info_t *vcpu_info = &s->vcpu_data[cpu];
- do {
- /* Specialised local_irq_save(). */
- flags = test_and_clear_bit(EVENTS_MASTER_ENABLE_BIT,
- &shared->events_mask);
- barrier();
+ vcpu_info->evtchn_upcall_pending = 0;
+
+ /* NB. No need for a barrier here -- XCHG is a barrier on x86. */
+ l1 = xchg(&vcpu_info->evtchn_pending_sel, 0);
+ while ( l1 != 0 )
+ {
+ l1i = __ffs(l1);
+ l1 &= ~(1 << l1i);
+
+ while ( (l2 = active_evtchns(cpu, s, l1i)) != 0 )
+ {
+ l2i = __ffs(l2);
+ l2 &= ~(1 << l2i);
- events = xchg(&shared->events, 0);
- events &= event_mask;
-
- /* 'events' now contains some pending events to handle. */
- __asm__ __volatile__ (
- " push %1 ;"
- " sub $4,%%esp ;"
- " jmp 2f ;"
- "1: btrl %%eax,%0 ;" /* clear bit */
- " mov %%eax,(%%esp) ;"
- " call do_event ;" /* do_event(event) */
- "2: bsfl %0,%%eax ;" /* %eax == bit # */
- " jnz 1b ;"
- " add $8,%%esp ;"
- /* we use %ebx because it is callee-saved */
- : : "b" (events), "r" (regs)
- /* clobbered by callback function calls */
- : "eax", "ecx", "edx", "memory" );
-
- /* Specialised local_irq_restore(). */
- if ( flags ) set_bit(EVENTS_MASTER_ENABLE_BIT, &shared->events_mask);
- barrier();
+ port = (l1i << 5) + l2i;
+ do_event(port, regs);
+ }
}
- while ( shared->events );
}
-void enable_hypervisor_event(unsigned int ev)
+
+inline void mask_evtchn(u32 port)
{
- set_bit(ev, &event_mask);
- set_bit(ev, &HYPERVISOR_shared_info->events_mask);
- if ( test_bit(EVENTS_MASTER_ENABLE_BIT,
- &HYPERVISOR_shared_info->events_mask) )
- do_hypervisor_callback(NULL);
+ shared_info_t *s = HYPERVISOR_shared_info;
+ synch_set_bit(port, &s->evtchn_mask[0]);
}
-void disable_hypervisor_event(unsigned int ev)
+inline void unmask_evtchn(u32 port)
{
- clear_bit(ev, &event_mask);
- clear_bit(ev, &HYPERVISOR_shared_info->events_mask);
+ shared_info_t *s = HYPERVISOR_shared_info;
+ vcpu_info_t *vcpu_info = &s->vcpu_data[smp_processor_id()];
+
+ synch_clear_bit(port, &s->evtchn_mask[0]);
+
+ /*
+ * The following is basically the equivalent of 'hw_resend_irq'. Just like
+ * a real IO-APIC we 'lose the interrupt edge' if the channel is masked.
+ */
+ if ( synch_test_bit (port, &s->evtchn_pending[0]) &&
+ !synch_test_and_set_bit(port>>5, &vcpu_info->evtchn_pending_sel) )
+ {
+ vcpu_info->evtchn_upcall_pending = 1;
+ if ( !vcpu_info->evtchn_upcall_mask )
+ force_evtchn_callback();
+ }
}
-void ack_hypervisor_event(unsigned int ev)
+inline void clear_evtchn(u32 port)
{
- if ( !(event_mask & (1<<ev)) )
- atomic_inc((atomic_t *)&ev_err_count);
- set_bit(ev, &HYPERVISOR_shared_info->events_mask);
+ shared_info_t *s = HYPERVISOR_shared_info;
+ synch_clear_bit(port, &s->evtchn_pending[0]);
}
diff -r 287583627544 -r 189c87adf876 extras/mini-os/kernel.c
--- a/extras/mini-os/kernel.c Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/kernel.c Wed Jul 6 10:46:29 2005
@@ -5,6 +5,7 @@
* from head.S.
*
* Copyright (c) 2002-2003, K A Fraser & R Neugebauer
+ * Copyright (c) 2005, Grzegorz Milos, Intel Research Cambridge
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@@ -56,10 +57,6 @@
void hypervisor_callback(void);
void failsafe_callback(void);
-/* default event handlers */
-static void exit_handler(int ev, struct pt_regs *regs);
-static void debug_handler(int ev, struct pt_regs *regs);
-
extern char shared_info[PAGE_SIZE];
static shared_info_t *map_shared_info(unsigned long pa)
@@ -80,6 +77,7 @@
void start_kernel(start_info_t *si)
{
static char hello[] = "Bootstrapping...\n";
+ int i;
(void)HYPERVISOR_console_io(CONSOLEIO_write, strlen(hello), hello);
/* Copy the start_info struct to a globally-accessible area. */
@@ -126,28 +124,32 @@
init_mm();
/* set up events */
-// init_events();
-
- /*
- * These need to be replaced with event-channel/control-interface
- * equivalents.
- */
-#if 0
- /* Install some handlers. */
- add_ev_action(EV_DIE, &exit_handler);
- enable_ev_action(EV_DIE);
- enable_hypervisor_event(EV_DIE);
-
- add_ev_action(EV_DEBUG, &debug_handler);
- enable_ev_action(EV_DEBUG);
- enable_hypervisor_event(EV_DEBUG);
-#endif
-
+ init_events();
/* init time and timers */
-// init_time();
+ init_time();
/* do nothing */
- for ( ; ; ) HYPERVISOR_yield();
+ i = 0;
+ for ( ; ; )
+ {
+ if(i >= 1000)
+ {
+ {
+ unsigned long saved;
+ __asm__ ("movl %%esp, %0"
+ :"=r"(saved) /* y is output operand */
+ /* x is input operand */);
+// :"a"); /* %eax is clobbered register */
+ printk("ESP=0x%lx\n", saved);
+ }
+
+ printk("1000 bloks\n");
+ i=0;
+ }
+// HYPERVISOR_yield();
+ block(1);
+ i++;
+ }
}
@@ -163,13 +165,3 @@
printk("do_exit called!\n");
for ( ;; ) HYPERVISOR_shutdown();
}
-static void exit_handler(int ev, struct pt_regs *regs) {
- do_exit();
-}
-
-/*
- * a debug handler to print out some state from the guest
- */
-static void debug_handler(int ev, struct pt_regs *regs) {
- dump_regs(regs);
-}
diff -r 287583627544 -r 189c87adf876 extras/mini-os/events.c
--- a/extras/mini-os/events.c Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/events.c Wed Jul 6 10:46:29 2005
@@ -1,19 +1,18 @@
/* -*- Mode:C; c-basic-offset:4; tab-width:4 -*-
****************************************************************************
* (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
+ * (C) 2005 - Grzegorz Milos - Intel Research Cambridge
****************************************************************************
*
* File: events.c
* Author: Rolf Neugebauer (neugebar@xxxxxxxxxxxxx)
- * Changes:
+ * Changes: Grzegorz Milos (gm281@xxxxxxxxx)
*
- * Date: Jul 2003
+ * Date: Jul 2003, changes Jun 2005
*
* Environment: Xen Minimal OS
- * Description: Deal with events
+ * Description: Deals with events recieved on event channels
*
- ****************************************************************************
- * $Id: c-insert.c,v 1.7 2002/11/08 16:04:34 rn Exp $
****************************************************************************
*/
@@ -22,25 +21,25 @@
#include <events.h>
#include <lib.h>
+#include <xen/event_channel.h>
static ev_action_t ev_actions[NR_EVS];
-void default_handler(int ev, struct pt_regs *regs);
+void default_handler(u32 port, struct pt_regs *regs);
/*
- * demux events to different handlers
+ * Demux events to different handlers.
*/
-unsigned int do_event(int ev, struct pt_regs *regs)
+int do_event(u32 port, struct pt_regs *regs)
{
ev_action_t *action;
- if (ev >= NR_EVS) {
- printk("Large event number %d\n", ev);
+ if (port >= NR_EVS) {
+ printk("Port number too large: %d\n", port);
return 0;
}
- action = &ev_actions[ev];
+ action = &ev_actions[port];
action->count++;
- ack_hypervisor_event(ev);
if (!action->handler)
goto out;
@@ -49,45 +48,49 @@
goto out;
/* call the handler */
- action->handler(ev, regs);
+ action->handler(port, regs);
+
+ clear_evtchn(port);
out:
return 1;
}
-/*
- * add a handler
- */
-unsigned int add_ev_action( int ev, void (*handler)(int, struct pt_regs *) )
+int bind_virq( u32 virq, void (*handler)(int, struct pt_regs *) )
{
- if (ev_actions[ev].handler) {
- printk ("event[%d] already handled by %p", ev, ev_actions[ev].handler);
- return 0;
+ evtchn_op_t op;
+ int ret = 0;
+ u32 port;
+
+ /* Try to bind the virq to a port */
+ op.cmd = EVTCHNOP_bind_virq;
+ op.u.bind_virq.virq = virq;
+
+ if ( HYPERVISOR_event_channel_op(&op) != 0 )
+ {
+ ret = 1;
+ printk("Failed to bind virtual IRQ %d\n", virq);
+ goto out;
}
- ev_actions[ev].handler = handler;
- return 1;
-}
+ port = op.u.bind_virq.port;
+
+ if(ev_actions[port].handler)
+ printk("WARN: Handler for port %d already registered, replacing\n",
+ port);
-unsigned int enable_ev_action( int ev )
-{
- if (!ev_actions[ev].handler) {
- printk ("enable event[%d], no handler installed", ev);
- return 0;
- }
- ev_actions[ev].status &= ~EVS_DISABLED;
- return 1;
-}
-
-unsigned int disable_ev_action( int ev )
-{
- ev_actions[ev].status |= EVS_DISABLED;
- return 1;
+ ev_actions[port].handler = handler;
+ ev_actions[port].status &= ~EVS_DISABLED;
+
+ /* Finally unmask the port */
+ unmask_evtchn(port);
+out:
+ return ret;
}
/*
- * initially all events are without a handler and disabled
+ * Initially all events are without a handler and disabled
*/
void init_events(void)
{
@@ -101,6 +104,6 @@
}
}
-void default_handler(int ev, struct pt_regs *regs) {
- printk("X[%d] ", ev);
+void default_handler(u32 port, struct pt_regs *regs) {
+ printk("[Port %d] - event received\n", port);
}
diff -r 287583627544 -r 189c87adf876 extras/mini-os/include/os.h
--- /dev/null Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/include/os.h Wed Jul 6 10:46:29 2005
@@ -0,0 +1,334 @@
+/******************************************************************************
+ * os.h
+ *
+ * random collection of macros and definition
+ */
+
+#ifndef _OS_H_
+#define _OS_H_
+
+#define NULL 0
+
+#if __GNUC__ == 2 && __GNUC_MINOR__ < 96
+#define __builtin_expect(x, expected_value) (x)
+#endif
+#define unlikely(x) __builtin_expect((x),0)
+
+#define smp_processor_id() 0
+#define preempt_disable() ((void)0)
+#define preempt_enable() ((void)0)
+
+#define force_evtchn_callback() ((void)HYPERVISOR_xen_version(0))
+
+#ifndef __ASSEMBLY__
+#include <types.h>
+#endif
+#include <xen/xen.h>
+
+#define __KERNEL_CS FLAT_KERNEL_CS
+#define __KERNEL_DS FLAT_KERNEL_DS
+#define __KERNEL_SS FLAT_KERNEL_SS
+
+#define TRAP_divide_error 0
+#define TRAP_debug 1
+#define TRAP_nmi 2
+#define TRAP_int3 3
+#define TRAP_overflow 4
+#define TRAP_bounds 5
+#define TRAP_invalid_op 6
+#define TRAP_no_device 7
+#define TRAP_double_fault 8
+#define TRAP_copro_seg 9
+#define TRAP_invalid_tss 10
+#define TRAP_no_segment 11
+#define TRAP_stack_error 12
+#define TRAP_gp_fault 13
+#define TRAP_page_fault 14
+#define TRAP_spurious_int 15
+#define TRAP_copro_error 16
+#define TRAP_alignment_check 17
+#define TRAP_machine_check 18
+#define TRAP_simd_error 19
+#define TRAP_deferred_nmi 31
+
+/* Everything below this point is not included by assembler (.S) files. */
+#ifndef __ASSEMBLY__
+
+#define pt_regs xen_regs
+
+void trap_init(void);
+
+/*
+ * The use of 'barrier' in the following reflects their use as local-lock
+ * operations. Reentrancy must be prevented (e.g., __cli()) /before/ following
+ * critical operations are executed. All critical operations must complete
+ * /before/ reentrancy is permitted (e.g., __sti()). Alpha architecture also
+ * includes these barriers, for example.
+ */
+
+#define __cli()
\
+do { \
+ vcpu_info_t *_vcpu; \
+ preempt_disable(); \
+ _vcpu = &HYPERVISOR_shared_info->vcpu_data[smp_processor_id()]; \
+ _vcpu->evtchn_upcall_mask = 1; \
+ preempt_enable_no_resched(); \
+ barrier(); \
+} while (0)
+
+#define __sti()
\
+do { \
+ vcpu_info_t *_vcpu; \
+ barrier(); \
+ preempt_disable(); \
+ _vcpu = &HYPERVISOR_shared_info->vcpu_data[smp_processor_id()]; \
+ _vcpu->evtchn_upcall_mask = 0; \
+ barrier(); /* unmask then check (avoid races) */ \
+ if ( unlikely(_vcpu->evtchn_upcall_pending) ) \
+ force_evtchn_callback(); \
+ preempt_enable(); \
+} while (0)
+
+#define __save_flags(x)
\
+do { \
+ vcpu_info_t *_vcpu; \
+ _vcpu = &HYPERVISOR_shared_info->vcpu_data[smp_processor_id()]; \
+ (x) = _vcpu->evtchn_upcall_mask; \
+} while (0)
+
+#define __restore_flags(x) \
+do { \
+ vcpu_info_t *_vcpu; \
+ barrier(); \
+ preempt_disable(); \
+ _vcpu = &HYPERVISOR_shared_info->vcpu_data[smp_processor_id()]; \
+ if ((_vcpu->evtchn_upcall_mask = (x)) == 0) { \
+ barrier(); /* unmask then check (avoid races) */ \
+ if ( unlikely(_vcpu->evtchn_upcall_pending) ) \
+ force_evtchn_callback(); \
+ preempt_enable(); \
+ } else \
+ preempt_enable_no_resched(); \
+} while (0)
+
+#define safe_halt() ((void)0)
+
+#define __save_and_cli(x) \
+do { \
+ vcpu_info_t *_vcpu; \
+ preempt_disable(); \
+ _vcpu = &HYPERVISOR_shared_info->vcpu_data[smp_processor_id()]; \
+ (x) = _vcpu->evtchn_upcall_mask; \
+ _vcpu->evtchn_upcall_mask = 1; \
+ preempt_enable_no_resched(); \
+ barrier(); \
+} while (0)
+
+#define local_irq_save(x) __save_and_cli(x)
+#define local_irq_restore(x) __restore_flags(x)
+#define local_save_flags(x) __save_flags(x)
+#define local_irq_disable() __cli()
+#define local_irq_enable() __sti()
+
+#define irqs_disabled() \
+ HYPERVISOR_shared_info->vcpu_data[smp_processor_id()].evtchn_upcall_mask
+
+/* This is a barrier for the compiler only, NOT the processor! */
+#define barrier() __asm__ __volatile__("": : :"memory")
+
+#define LOCK_PREFIX ""
+#define LOCK ""
+#define ADDR (*(volatile long *) addr)
+/*
+ * Make sure gcc doesn't try to be clever and move things around
+ * on us. We need to use _exactly_ the address the user gave us,
+ * not some alias that contains the same information.
+ */
+typedef struct { volatile int counter; } atomic_t;
+
+
+#define xchg(ptr,v) \
+ ((__typeof__(*(ptr)))__xchg((unsigned long)(v),(ptr),sizeof(*(ptr))))
+struct __xchg_dummy { unsigned long a[100]; };
+#define __xg(x) ((volatile struct __xchg_dummy *)(x))
+static __inline__ unsigned long __xchg(unsigned long x, volatile void * ptr,
+ int size)
+{
+ switch (size) {
+ case 1:
+ __asm__ __volatile__("xchgb %b0,%1"
+ :"=q" (x)
+ :"m" (*__xg(ptr)), "0" (x)
+ :"memory");
+ break;
+ case 2:
+ __asm__ __volatile__("xchgw %w0,%1"
+ :"=r" (x)
+ :"m" (*__xg(ptr)), "0" (x)
+ :"memory");
+ break;
+ case 4:
+ __asm__ __volatile__("xchgl %0,%1"
+ :"=r" (x)
+ :"m" (*__xg(ptr)), "0" (x)
+ :"memory");
+ break;
+ }
+ return x;
+}
+
+/**
+ * test_and_clear_bit - Clear a bit and return its old value
+ * @nr: Bit to set
+ * @addr: Address to count from
+ *
+ * This operation is atomic and cannot be reordered.
+ * It also implies a memory barrier.
+ */
+static __inline__ int test_and_clear_bit(int nr, volatile void * addr)
+{
+ int oldbit;
+
+ __asm__ __volatile__( LOCK_PREFIX
+ "btrl %2,%1\n\tsbbl %0,%0"
+ :"=r" (oldbit),"=m" (ADDR)
+ :"Ir" (nr) : "memory");
+ return oldbit;
+}
+
+static __inline__ int constant_test_bit(int nr, const volatile void * addr)
+{
+ return ((1UL << (nr & 31)) & (((const volatile unsigned int *) addr)[nr >>
5])) != 0;
+}
+
+static __inline__ int variable_test_bit(int nr, volatile void * addr)
+{
+ int oldbit;
+
+ __asm__ __volatile__(
+ "btl %2,%1\n\tsbbl %0,%0"
+ :"=r" (oldbit)
+ :"m" (ADDR),"Ir" (nr));
+ return oldbit;
+}
+
+#define test_bit(nr,addr) \
+(__builtin_constant_p(nr) ? \
+ constant_test_bit((nr),(addr)) : \
+ variable_test_bit((nr),(addr)))
+
+
+/**
+ * set_bit - Atomically set a bit in memory
+ * @nr: the bit to set
+ * @addr: the address to start counting from
+ *
+ * This function is atomic and may not be reordered. See __set_bit()
+ * if you do not require the atomic guarantees.
+ * Note that @nr may be almost arbitrarily large; this function is not
+ * restricted to acting on a single-word quantity.
+ */
+static __inline__ void set_bit(int nr, volatile void * addr)
+{
+ __asm__ __volatile__( LOCK_PREFIX
+ "btsl %1,%0"
+ :"=m" (ADDR)
+ :"Ir" (nr));
+}
+
+/**
+ * clear_bit - Clears a bit in memory
+ * @nr: Bit to clear
+ * @addr: Address to start counting from
+ *
+ * clear_bit() is atomic and may not be reordered. However, it does
+ * not contain a memory barrier, so if it is used for locking purposes,
+ * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit()
+ * in order to ensure changes are visible on other processors.
+ */
+static __inline__ void clear_bit(int nr, volatile void * addr)
+{
+ __asm__ __volatile__( LOCK_PREFIX
+ "btrl %1,%0"
+ :"=m" (ADDR)
+ :"Ir" (nr));
+}
+
+/**
+ * atomic_inc - increment atomic variable
+ * @v: pointer of type atomic_t
+ *
+ * Atomically increments @v by 1. Note that the guaranteed
+ * useful range of an atomic_t is only 24 bits.
+ */
+static __inline__ void atomic_inc(atomic_t *v)
+{
+ __asm__ __volatile__(
+ LOCK "incl %0"
+ :"=m" (v->counter)
+ :"m" (v->counter));
+}
+
+
+#define rdtscll(val) \
+ __asm__ __volatile__("rdtsc" : "=A" (val))
+
+static __inline__ unsigned long __ffs(unsigned long word)
+{
+ __asm__("bsfl %1,%0"
+ :"=r" (word)
+ :"rm" (word));
+ return word;
+}
+
+#define ADDR (*(volatile long *) addr)
+
+static __inline__ void synch_set_bit(int nr, volatile void * addr)
+{
+ __asm__ __volatile__ (
+ "lock btsl %1,%0"
+ : "=m" (ADDR) : "Ir" (nr) : "memory" );
+}
+
+static __inline__ void synch_clear_bit(int nr, volatile void * addr)
+{
+ __asm__ __volatile__ (
+ "lock btrl %1,%0"
+ : "=m" (ADDR) : "Ir" (nr) : "memory" );
+}
+
+static __inline__ int synch_test_and_set_bit(int nr, volatile void * addr)
+{
+ int oldbit;
+ __asm__ __volatile__ (
+ "lock btsl %2,%1\n\tsbbl %0,%0"
+ : "=r" (oldbit), "=m" (ADDR) : "Ir" (nr) : "memory");
+ return oldbit;
+}
+
+
+static __inline__ int synch_const_test_bit(int nr, const volatile void * addr)
+{
+ return ((1UL << (nr & 31)) &
+ (((const volatile unsigned int *) addr)[nr >> 5])) != 0;
+}
+
+static __inline__ int synch_var_test_bit(int nr, volatile void * addr)
+{
+ int oldbit;
+ __asm__ __volatile__ (
+ "btl %2,%1\n\tsbbl %0,%0"
+ : "=r" (oldbit) : "m" (ADDR), "Ir" (nr) );
+ return oldbit;
+}
+
+#define synch_test_bit(nr,addr) \
+(__builtin_constant_p(nr) ? \
+ synch_const_test_bit((nr),(addr)) : \
+ synch_var_test_bit((nr),(addr)))
+#endif /* !__ASSEMBLY__ */
+
+#define rdtsc(low,high) \
+ __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high))
+
+#endif /* _OS_H_ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/include/mm.h
--- /dev/null Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/include/mm.h Wed Jul 6 10:46:29 2005
@@ -0,0 +1,111 @@
+/* -*- Mode:C; c-basic-offset:4; tab-width:4 -*-
+ *
+ * (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
+ * Copyright (c) 2005, Keir A Fraser
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _MM_H_
+#define _MM_H_
+
+#ifdef __x86_64__
+
+#define L1_PAGETABLE_SHIFT 12
+#define L2_PAGETABLE_SHIFT 21
+#define L3_PAGETABLE_SHIFT 30
+#define L4_PAGETABLE_SHIFT 39
+
+#define L1_PAGETABLE_ENTRIES 512
+#define L2_PAGETABLE_ENTRIES 512
+#define L3_PAGETABLE_ENTRIES 512
+#define L4_PAGETABLE_ENTRIES 512
+
+/* These are page-table limitations. Current CPUs support only 40-bit phys. */
+#define PADDR_BITS 52
+#define VADDR_BITS 48
+#define PADDR_MASK ((1UL << PADDR_BITS)-1)
+#define VADDR_MASK ((1UL << VADDR_BITS)-1)
+
+#define pte_to_mfn(_pte) (((_pte) & (PADDR_MASK&PAGE_MASK)) >> PAGE_SHIFT)
+
+/* Given a virtual address, get an entry offset into a page table. */
+#define l1_table_offset(_a) \
+ (((_a) >> L1_PAGETABLE_SHIFT) & (L1_PAGETABLE_ENTRIES - 1))
+#define l2_table_offset(_a) \
+ (((_a) >> L2_PAGETABLE_SHIFT) & (L2_PAGETABLE_ENTRIES - 1))
+#define l3_table_offset(_a) \
+ (((_a) >> L3_PAGETABLE_SHIFT) & (L3_PAGETABLE_ENTRIES - 1))
+#define l4_table_offset(_a) \
+ (((_a) >> L4_PAGETABLE_SHIFT) & (L4_PAGETABLE_ENTRIES - 1))
+#endif
+
+#define _PAGE_PRESENT 0x001UL
+#define _PAGE_RW 0x002UL
+#define _PAGE_USER 0x004UL
+#define _PAGE_PWT 0x008UL
+#define _PAGE_PCD 0x010UL
+#define _PAGE_ACCESSED 0x020UL
+#define _PAGE_DIRTY 0x040UL
+#define _PAGE_PAT 0x080UL
+#define _PAGE_PSE 0x080UL
+#define _PAGE_GLOBAL 0x100UL
+
+#define PAGE_SHIFT 12
+#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
+#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
+#define PFN_PHYS(x) ((x) << PAGE_SHIFT)
+
+/* to align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
+
+extern unsigned long *phys_to_machine_mapping;
+#define pfn_to_mfn(_pfn) (phys_to_machine_mapping[(_pfn)])
+#define mfn_to_pfn(_mfn) (machine_to_phys_mapping[(_mfn)])
+static __inline__ unsigned long phys_to_machine(unsigned long phys)
+{
+ unsigned long machine = pfn_to_mfn(phys >> PAGE_SHIFT);
+ machine = (machine << PAGE_SHIFT) | (phys & ~PAGE_MASK);
+ return machine;
+}
+static __inline__ unsigned long machine_to_phys(unsigned long machine)
+{
+ unsigned long phys = mfn_to_pfn(machine >> PAGE_SHIFT);
+ phys = (phys << PAGE_SHIFT) | (machine & ~PAGE_MASK);
+ return phys;
+}
+
+#ifdef __x86_64__
+#define VIRT_START 0xFFFFFFFF00000000UL
+#else
+#define VIRT_START 0xC0000000UL
+#endif
+
+#define to_phys(x) ((unsigned long)(x)-VIRT_START)
+#define to_virt(x) ((void *)((unsigned long)(x)+VIRT_START))
+#define __va to_virt
+#define __pa to_phys
+
+void init_mm(void);
+unsigned long alloc_pages(int order);
+
+#endif /* _MM_H_ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/include/traps.h
--- /dev/null Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/include/traps.h Wed Jul 6 10:46:29 2005
@@ -0,0 +1,41 @@
+/*
+ ****************************************************************************
+ * (C) 2005 - Grzegorz Milos - Intel Reseach Cambridge
+ ****************************************************************************
+ *
+ * File: traps.h
+ * Author: Grzegorz Milos (gm281@xxxxxxxxx)
+ *
+ * Date: Jun 2005
+ *
+ * Environment: Xen Minimal OS
+ * Description: Deals with traps
+ *
+ ****************************************************************************
+ */
+
+#ifndef _TRAPS_H_
+#define _TRAPS_H_
+
+struct pt_regs {
+ long ebx;
+ long ecx;
+ long edx;
+ long esi;
+ long edi;
+ long ebp;
+ long eax;
+ int xds;
+ int xes;
+ long orig_eax;
+ long eip;
+ int xcs;
+ long eflags;
+ long esp;
+ int xss;
+};
+
+
+void dump_regs(struct pt_regs *regs);
+
+#endif /* _TRAPS_H_ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/include/hypervisor.h
--- /dev/null Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/include/hypervisor.h Wed Jul 6 10:46:29 2005
@@ -0,0 +1,357 @@
+/******************************************************************************
+ * hypervisor.h
+ *
+ * Hypervisor handling.
+ *
+ * TODO - x86_64 broken!
+ *
+ * Copyright (c) 2002, K A Fraser
+ * Copyright (c) 2005, Grzegorz Milos
+ */
+
+#ifndef _HYPERVISOR_H_
+#define _HYPERVISOR_H_
+
+#include <types.h>
+
+#include <xen/xen.h>
+#include <xen/io/domain_controller.h>
+
+
+
+/*
+ * a placeholder for the start of day information passed up from the hypervisor
+ */
+union start_info_union
+{
+ start_info_t start_info;
+ char padding[512];
+};
+extern union start_info_union start_info_union;
+#define start_info (start_info_union.start_info)
+
+
+/* hypervisor.c */
+//void do_hypervisor_callback(struct pt_regs *regs);
+void mask_evtchn(u32 port);
+void unmask_evtchn(u32 port);
+void clear_evtchn(u32 port);
+
+/*
+ * Assembler stubs for hyper-calls.
+ */
+
+#ifdef __i386__
+#define _a1 "b"
+#define _a2 "c"
+#define _a3 "d"
+#define _a4 "S"
+#else
+#define _a1 "D"
+#define _a2 "S"
+#define _a3 "d"
+#define _a4 "b"
+#endif
+
+static __inline__ int HYPERVISOR_event_channel_op(
+ void *op)
+{
+ int ret;
+ unsigned long ignore;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret), "=b" (ignore)
+ : "0" (__HYPERVISOR_event_channel_op), "1" (op)
+ : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_set_trap_table(trap_info_t *table)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_set_trap_table),
+ _a1 (table) : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_mmu_update(mmu_update_t *req,
+ int count,
+ int *success_count)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_mmu_update),
+ _a1 (req), _a2 (count), _a3 (success_count) : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_set_gdt(unsigned long *frame_list, int
entries)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_set_gdt),
+ _a1 (frame_list), _a2 (entries) : "memory" );
+
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_stack_switch(unsigned long ss, unsigned long
esp)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_stack_switch),
+ _a1 (ss), _a2 (esp) : "memory" );
+
+ return ret;
+}
+
+#ifdef __i386__
+static __inline__ int HYPERVISOR_set_callbacks(
+ unsigned long event_selector, unsigned long event_address,
+ unsigned long failsafe_selector, unsigned long failsafe_address)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_set_callbacks),
+ _a1 (event_selector), _a2 (event_address),
+ _a3 (failsafe_selector), _a4 (failsafe_address) : "memory" );
+
+ return ret;
+}
+#else
+static __inline__ int HYPERVISOR_set_callbacks(
+ unsigned long event_address,
+ unsigned long failsafe_address,
+ unsigned long syscall_address)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_set_callbacks),
+ _a1 (event_address), _a2 (failsafe_address),
+ _a3 (syscall_address) : "memory" );
+
+ return ret;
+}
+#endif
+
+static __inline__ int
+HYPERVISOR_fpu_taskswitch(
+ int set)
+{
+ int ret;
+ unsigned long ign;
+
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret), "=b" (ign)
+ : "0" (__HYPERVISOR_fpu_taskswitch), "1" (set)
+ : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_yield(void)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_sched_op),
+ _a1 (SCHEDOP_yield) : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_block(void)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_sched_op),
+ _a1 (SCHEDOP_block) : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_shutdown(void)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_sched_op),
+ _a1 (SCHEDOP_shutdown | (SHUTDOWN_poweroff << SCHEDOP_reasonshift))
+ : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_reboot(void)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_sched_op),
+ _a1 (SCHEDOP_shutdown | (SHUTDOWN_reboot << SCHEDOP_reasonshift))
+ : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_suspend(unsigned long srec)
+{
+ int ret;
+ /* NB. On suspend, control software expects a suspend record in %esi. */
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_sched_op),
+ _a1 (SCHEDOP_shutdown | (SHUTDOWN_suspend << SCHEDOP_reasonshift)),
+ "S" (srec) : "memory" );
+
+ return ret;
+}
+
+#ifdef __i386__
+static __inline__ long HYPERVISOR_set_timer_op( u64 timeout )
+{
+ int ret;
+ unsigned long timeout_hi = (unsigned long)(timeout>>32);
+ unsigned long timeout_lo = (unsigned long)timeout;
+ unsigned long ign1, ign2;
+
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret), "=b" (ign1), "=c" (ign2)
+ : "0" (__HYPERVISOR_set_timer_op), "b" (timeout_lo), "c" (timeout_hi)
+ : "memory");
+
+ return ret;
+}
+#else
+static __inline__ long HYPERVISOR_set_timer_op( u64 timeout )
+{
+ int ret;
+
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret)
+ : "0" ((unsigned long)__HYPERVISOR_set_timer_op),
+ "D" (timeout)
+ : __syscall_clobber );
+
+ return ret;
+}
+#endif
+
+
+static __inline__ int HYPERVISOR_dom0_op(void *dom0_op)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_dom0_op),
+ _a1 (dom0_op) : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_set_debugreg(int reg, unsigned long value)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_set_debugreg),
+ _a1 (reg), _a2 (value) : "memory" );
+
+ return ret;
+}
+
+static __inline__ unsigned long HYPERVISOR_get_debugreg(int reg)
+{
+ unsigned long ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_get_debugreg),
+ _a1 (reg) : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_update_descriptor(
+ unsigned long pa, unsigned long word1, unsigned long word2)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_update_descriptor),
+ _a1 (pa), _a2 (word1), _a3 (word2) : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_dom_mem_op(void *dom_mem_op)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_dom_mem_op),
+ _a1 (dom_mem_op) : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_multicall(void *call_list, int nr_calls)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_multicall),
+ _a1 (call_list), _a2 (nr_calls) : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_update_va_mapping(
+ unsigned long page_nr, unsigned long new_val, unsigned long flags)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_update_va_mapping),
+ _a1 (page_nr), _a2 (new_val), _a3 (flags) : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_xen_version(int cmd)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_xen_version),
+ _a1 (cmd) : "memory" );
+
+ return ret;
+}
+
+static __inline__ int HYPERVISOR_console_io(int cmd, int count, char *str)
+{
+ int ret;
+ __asm__ __volatile__ (
+ TRAP_INSTR
+ : "=a" (ret) : "0" (__HYPERVISOR_console_io),
+ _a1 (cmd), _a2 (count), _a3 (str) : "memory" );
+
+ return ret;
+}
+
+#endif /* __HYPERVISOR_H__ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/include/lib.h
--- /dev/null Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/include/lib.h Wed Jul 6 10:46:29 2005
@@ -0,0 +1,114 @@
+/* -*- Mode:C; c-basic-offset:4; tab-width:4 -*-
+ ****************************************************************************
+ * (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
+ ****************************************************************************
+ *
+ * File: lib.h
+ * Author: Rolf Neugebauer (neugebar@xxxxxxxxxxxxx)
+ * Changes:
+ *
+ * Date: Aug 2003
+ *
+ * Environment: Xen Minimal OS
+ * Description: Random useful library functions, contains some freebsd stuff
+ *
+ ****************************************************************************
+ * $Id: h-insert.h,v 1.4 2002/11/08 16:03:55 rn Exp $
+ ****************************************************************************
+ *
+ *-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)stdarg.h 8.1 (Berkeley) 6/10/93
+ * $FreeBSD: src/sys/i386/include/stdarg.h,v 1.10 1999/08/28 00:44:26 peter
Exp $
+ */
+
+#ifndef _LIB_H_
+#define _LIB_H_
+
+#include <stdarg.h>
+
+/* printing */
+#define printk printf
+#define kprintf printf
+int printf(const char *fmt, ...);
+int vprintf(const char *fmt, va_list ap);
+int sprintf(char *buf, const char *cfmt, ...);
+int vsprintf(char *buf, const char *cfmt, va_list ap);
+
+/* string and memory manipulation */
+int memcmp(const void *cs, const void *ct, size_t count);
+void *memcpy(void *dest, const void *src, size_t count);
+int strncmp(const char *cs, const char *ct, size_t count);
+int strcmp(const char *cs, const char *ct);
+char *strcpy(char *dest, const char *src);
+char *strncpy(char *dest, const char *src, size_t count);
+void *memset(void *s,int c, size_t count);
+size_t strnlen(const char *s, size_t count);
+size_t strlen(const char *s);
+char *strchr(const char *s, int c);
+char *strstr(const char *s1, const char *s2);
+
+
+/* dlmalloc functions */
+struct mallinfo {
+ int arena; /* non-mmapped space allocated from system */
+ int ordblks; /* number of free chunks */
+ int smblks; /* number of fastbin blocks */
+ int hblks; /* number of mmapped regions */
+ int hblkhd; /* space in mmapped regions */
+ int usmblks; /* maximum total allocated space */
+ int fsmblks; /* space available in freed fastbin blocks */
+ int uordblks; /* total allocated space */
+ int fordblks; /* total free space */
+ int keepcost; /* top-most, releasable (via malloc_trim) space */
+};
+
+void *malloc(size_t n);
+void *calloc(size_t n_elements, size_t element_size);
+void free(void* p);
+void *realloc(void* p, size_t n);
+void *memalign(size_t alignment, size_t n);
+void *valloc(size_t n);
+struct mallinfo mallinfo(void);
+int mallopt(int parameter_number, int parameter_value);
+
+void **independent_calloc(size_t n_elements, size_t size, void* chunks[]);
+void **independent_comalloc(size_t n_elements, size_t sizes[], void* chunks[]);
+void *pvalloc(size_t n);
+void cfree(void* p);
+int malloc_trim(size_t pad);
+size_t malloc_usable_size(void* p);
+void malloc_stats(void);
+
+
+#endif /* _LIB_H_ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/include/types.h
--- /dev/null Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/include/types.h Wed Jul 6 10:46:29 2005
@@ -0,0 +1,52 @@
+/* -*- Mode:C; c-basic-offset:4; tab-width:4 -*-
+ ****************************************************************************
+ * (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
+ ****************************************************************************
+ *
+ * File: types.h
+ * Author: Rolf Neugebauer (neugebar@xxxxxxxxxxxxx)
+ * Changes:
+ *
+ * Date: May 2003
+ *
+ * Environment: Xen Minimal OS
+ * Description: a random collection of type definitions
+ *
+ ****************************************************************************
+ * $Id: h-insert.h,v 1.4 2002/11/08 16:03:55 rn Exp $
+ ****************************************************************************
+ */
+
+#ifndef _TYPES_H_
+#define _TYPES_H_
+
+typedef signed char s8;
+typedef unsigned char u8;
+typedef signed short s16;
+typedef unsigned short u16;
+typedef signed int s32;
+typedef unsigned int u32;
+#ifdef __i386__
+typedef signed long long s64;
+typedef unsigned long long u64;
+#elif defined(__x86_64__)
+typedef signed long s64;
+typedef unsigned long u64;
+#endif
+
+typedef unsigned int size_t;
+
+/* FreeBSD compat types */
+typedef unsigned char u_char;
+typedef unsigned int u_int;
+typedef unsigned long u_long;
+#ifdef __i386__
+typedef long long quad_t;
+typedef unsigned long long u_quad_t;
+typedef unsigned int uintptr_t;
+#elif defined(__x86_64__)
+typedef long quad_t;
+typedef unsigned long u_quad_t;
+typedef unsigned long uintptr_t;
+#endif
+#endif /* _TYPES_H_ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/include/events.h
--- /dev/null Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/include/events.h Wed Jul 6 10:46:29 2005
@@ -0,0 +1,44 @@
+/* -*- Mode:C; c-basic-offset:4; tab-width:4 -*-
+ ****************************************************************************
+ * (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
+ * (C) 2005 - Grzegorz Milos - Intel Reseach Cambridge
+ ****************************************************************************
+ *
+ * File: events.h
+ * Author: Rolf Neugebauer (neugebar@xxxxxxxxxxxxx)
+ * Changes: Grzegorz Milos (gm281@xxxxxxxxx)
+ *
+ * Date: Jul 2003, changes Jun 2005
+ *
+ * Environment: Xen Minimal OS
+ * Description: Deals with events on the event channels
+ *
+ ****************************************************************************
+ */
+
+#ifndef _EVENTS_H_
+#define _EVENTS_H_
+
+#include<traps.h>
+
+#define NR_EVS 1024
+
+/* ev handler status */
+#define EVS_INPROGRESS 1 /* Event handler active - do not enter! */
+#define EVS_DISABLED 2 /* Event disabled - do not enter! */
+#define EVS_PENDING 4 /* Event pending - replay on enable */
+#define EVS_REPLAY 8 /* Event has been replayed but not acked yet */
+
+/* this represents a event handler. Chaining or sharing is not allowed */
+typedef struct _ev_action_t {
+ void (*handler)(int, struct pt_regs *);
+ unsigned int status; /* IRQ status */
+ u32 count;
+} ev_action_t;
+
+/* prototypes */
+int do_event(u32 port, struct pt_regs *regs);
+int bind_virq( u32 virq, void (*handler)(int, struct pt_regs *) );
+void init_events(void);
+
+#endif /* _EVENTS_H_ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/include/time.h
--- /dev/null Wed Jul 6 08:50:11 2005
+++ b/extras/mini-os/include/time.h Wed Jul 6 10:46:29 2005
@@ -0,0 +1,57 @@
+/* -*- Mode:C; c-basic-offset:4; tab-width:4 -*-
+ ****************************************************************************
+ * (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
+ * (C) 2005 - Grzegorz Milos - Intel Research Cambridge
+ ****************************************************************************
+ *
+ * File: time.h
+ * Author: Rolf Neugebauer (neugebar@xxxxxxxxxxxxx)
+ * Changes: Grzegorz Milos (gm281@xxxxxxxxx)
+ *
+ * Date: Jul 2003, changesJun 2005
+ *
+ * Environment: Xen Minimal OS
+ * Description: Time and timer functions
+ *
+ ****************************************************************************
+ */
+
+#ifndef _TIME_H_
+#define _TIME_H_
+
+/*
+ * System Time
+ * 64 bit value containing the nanoseconds elapsed since boot time.
+ * This value is adjusted by frequency drift.
+ * NOW() returns the current time.
+ * The other macros are for convenience to approximate short intervals
+ * of real time into system time
+ */
+typedef s64 s_time_t;
+#define NOW() ((s_time_t)get_s_time())
+#define SECONDS(_s) (((s_time_t)(_s)) * 1000000000UL )
+#define TENTHS(_ts) (((s_time_t)(_ts)) * 100000000UL )
+#define HUNDREDTHS(_hs) (((s_time_t)(_hs)) * 10000000UL )
+#define MILLISECS(_ms) (((s_time_t)(_ms)) * 1000000UL )
+#define MICROSECS(_us) (((s_time_t)(_us)) * 1000UL )
+#define Time_Max ((s_time_t) 0x7fffffffffffffffLL)
+#define FOREVER Time_Max
+
+
+/* wall clock time */
+typedef long time_t;
+typedef long suseconds_t;
+struct timeval {
+ time_t tv_sec; /* seconds */
+ suseconds_t tv_usec; /* microseconds */
+};
+
+
+/* prototypes */
+void init_time(void);
+s_time_t get_s_time(void);
+s_time_t get_v_time(void);
+void gettimeofday(struct timeval *tv);
+void block(u32 millisecs);
+
+#endif /* _TIME_H_ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/h/events.h
--- a/extras/mini-os/h/events.h Wed Jul 6 08:50:11 2005
+++ /dev/null Wed Jul 6 10:46:29 2005
@@ -1,53 +0,0 @@
-/* -*- Mode:C; c-basic-offset:4; tab-width:4 -*-
- ****************************************************************************
- * (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
- ****************************************************************************
- *
- * File: events.h
- * Author: Rolf Neugebauer (neugebar@xxxxxxxxxxxxx)
- * Changes:
- *
- * Date: Jul 2003
- *
- * Environment: Xen Minimal OS
- * Description: deal with events
- *
- ****************************************************************************
- * $Id: h-insert.h,v 1.4 2002/11/08 16:03:55 rn Exp $
- ****************************************************************************
- */
-
-#ifndef _EVENTS_H_
-#define _EVENTS_H_
-
-/* _EVENT_* are defined in xen-public/xen.h */
-#define EV_BLKDEV _EVENT_BLKDEV
-#define EV_TIMER _EVENT_TIMER
-#define EV_DIE _EVENT_DIE
-#define EV_DEBUG _EVENT_DEBUG
-#define EV_NET _EVENT_NET
-#define EV_PS2 _EVENT_PS2
-
-#define NR_EVS (sizeof(HYPERVISOR_shared_info->events) * 8)
-
-/* ev handler status */
-#define EVS_INPROGRESS 1 /* Event handler active - do not enter! */
-#define EVS_DISABLED 2 /* Event disabled - do not enter! */
-#define EVS_PENDING 4 /* Event pending - replay on enable */
-#define EVS_REPLAY 8 /* Event has been replayed but not acked yet */
-
-/* this represents a event handler. Chaining or sharing is not allowed */
-typedef struct _ev_action_t {
- void (*handler)(int, struct pt_regs *);
- unsigned int status; /* IRQ status */
- u32 count;
-} ev_action_t;
-
-/* prototypes */
-unsigned int do_event(int ev, struct pt_regs *regs);
-unsigned int add_ev_action( int ev, void (*handler)(int, struct pt_regs *) );
-unsigned int enable_ev_action( int ev );
-unsigned int disable_ev_action( int ev );
-void init_events(void);
-
-#endif /* _EVENTS_H_ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/h/hypervisor.h
--- a/extras/mini-os/h/hypervisor.h Wed Jul 6 08:50:11 2005
+++ /dev/null Wed Jul 6 10:46:29 2005
@@ -1,316 +0,0 @@
-/******************************************************************************
- * hypervisor.h
- *
- * Linux-specific hypervisor handling.
- *
- * Copyright (c) 2002, K A Fraser
- */
-
-#ifndef _HYPERVISOR_H_
-#define _HYPERVISOR_H_
-
-#include <types.h>
-
-#include <xen-public/xen.h>
-#include <xen-public/io/domain_controller.h>
-
-/*
- * a placeholder for the start of day information passed up from the hypervisor
- */
-union start_info_union
-{
- start_info_t start_info;
- char padding[512];
-};
-extern union start_info_union start_info_union;
-#define start_info (start_info_union.start_info)
-
-
-/* hypervisor.c */
-void do_hypervisor_callback(struct pt_regs *regs);
-void enable_hypervisor_event(unsigned int ev);
-void disable_hypervisor_event(unsigned int ev);
-void ack_hypervisor_event(unsigned int ev);
-
-/*
- * Assembler stubs for hyper-calls.
- */
-
-#ifdef __i386__
-#define _a1 "b"
-#define _a2 "c"
-#define _a3 "d"
-#define _a4 "S"
-#else
-#define _a1 "D"
-#define _a2 "S"
-#define _a3 "d"
-#define _a4 "b"
-#endif
-
-static __inline__ int HYPERVISOR_set_trap_table(trap_info_t *table)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_set_trap_table),
- _a1 (table) : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_mmu_update(mmu_update_t *req,
- int count,
- int *success_count)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_mmu_update),
- _a1 (req), _a2 (count), _a3 (success_count) : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_set_gdt(unsigned long *frame_list, int
entries)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_set_gdt),
- _a1 (frame_list), _a2 (entries) : "memory" );
-
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_stack_switch(unsigned long ss, unsigned long
esp)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_stack_switch),
- _a1 (ss), _a2 (esp) : "memory" );
-
- return ret;
-}
-
-#ifdef __i386__
-static __inline__ int HYPERVISOR_set_callbacks(
- unsigned long event_selector, unsigned long event_address,
- unsigned long failsafe_selector, unsigned long failsafe_address)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_set_callbacks),
- _a1 (event_selector), _a2 (event_address),
- _a3 (failsafe_selector), _a4 (failsafe_address) : "memory" );
-
- return ret;
-}
-#else
-static __inline__ int HYPERVISOR_set_callbacks(
- unsigned long event_address,
- unsigned long failsafe_address,
- unsigned long syscall_address)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_set_callbacks),
- _a1 (event_address), _a2 (failsafe_address),
- _a3 (syscall_address) : "memory" );
-
- return ret;
-}
-#endif
-
-static __inline__ int
-HYPERVISOR_fpu_taskswitch(
- int set)
-{
- int ret;
- unsigned long ign;
-
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret), "=b" (ign)
- : "0" (__HYPERVISOR_fpu_taskswitch), "1" (set)
- : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_yield(void)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_sched_op),
- _a1 (SCHEDOP_yield) : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_block(void)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_sched_op),
- _a1 (SCHEDOP_block) : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_shutdown(void)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_sched_op),
- _a1 (SCHEDOP_shutdown | (SHUTDOWN_poweroff << SCHEDOP_reasonshift))
- : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_reboot(void)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_sched_op),
- _a1 (SCHEDOP_shutdown | (SHUTDOWN_reboot << SCHEDOP_reasonshift))
- : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_suspend(unsigned long srec)
-{
- int ret;
- /* NB. On suspend, control software expects a suspend record in %esi. */
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_sched_op),
- _a1 (SCHEDOP_shutdown | (SHUTDOWN_suspend << SCHEDOP_reasonshift)),
- "S" (srec) : "memory" );
-
- return ret;
-}
-
-static __inline__ long HYPERVISOR_set_timer_op(void *timer_arg)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_set_timer_op),
- _a1 (timer_arg) : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_dom0_op(void *dom0_op)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_dom0_op),
- _a1 (dom0_op) : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_set_debugreg(int reg, unsigned long value)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_set_debugreg),
- _a1 (reg), _a2 (value) : "memory" );
-
- return ret;
-}
-
-static __inline__ unsigned long HYPERVISOR_get_debugreg(int reg)
-{
- unsigned long ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_get_debugreg),
- _a1 (reg) : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_update_descriptor(
- unsigned long pa, unsigned long word1, unsigned long word2)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_update_descriptor),
- _a1 (pa), _a2 (word1), _a3 (word2) : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_dom_mem_op(void *dom_mem_op)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_dom_mem_op),
- _a1 (dom_mem_op) : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_multicall(void *call_list, int nr_calls)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_multicall),
- _a1 (call_list), _a2 (nr_calls) : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_update_va_mapping(
- unsigned long page_nr, unsigned long new_val, unsigned long flags)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_update_va_mapping),
- _a1 (page_nr), _a2 (new_val), _a3 (flags) : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_xen_version(int cmd)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_xen_version),
- _a1 (cmd) : "memory" );
-
- return ret;
-}
-
-static __inline__ int HYPERVISOR_console_io(int cmd, int count, char *str)
-{
- int ret;
- __asm__ __volatile__ (
- TRAP_INSTR
- : "=a" (ret) : "0" (__HYPERVISOR_console_io),
- _a1 (cmd), _a2 (count), _a3 (str) : "memory" );
-
- return ret;
-}
-
-#endif /* __HYPERVISOR_H__ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/h/lib.h
--- a/extras/mini-os/h/lib.h Wed Jul 6 08:50:11 2005
+++ /dev/null Wed Jul 6 10:46:29 2005
@@ -1,114 +0,0 @@
-/* -*- Mode:C; c-basic-offset:4; tab-width:4 -*-
- ****************************************************************************
- * (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
- ****************************************************************************
- *
- * File: lib.h
- * Author: Rolf Neugebauer (neugebar@xxxxxxxxxxxxx)
- * Changes:
- *
- * Date: Aug 2003
- *
- * Environment: Xen Minimal OS
- * Description: Random useful library functions, contains some freebsd stuff
- *
- ****************************************************************************
- * $Id: h-insert.h,v 1.4 2002/11/08 16:03:55 rn Exp $
- ****************************************************************************
- *
- *-
- * Copyright (c) 1991, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)stdarg.h 8.1 (Berkeley) 6/10/93
- * $FreeBSD: src/sys/i386/include/stdarg.h,v 1.10 1999/08/28 00:44:26 peter
Exp $
- */
-
-#ifndef _LIB_H_
-#define _LIB_H_
-
-#include <stdarg.h>
-
-/* printing */
-#define printk printf
-#define kprintf printf
-int printf(const char *fmt, ...);
-int vprintf(const char *fmt, va_list ap);
-int sprintf(char *buf, const char *cfmt, ...);
-int vsprintf(char *buf, const char *cfmt, va_list ap);
-
-/* string and memory manipulation */
-int memcmp(const void *cs, const void *ct, size_t count);
-void *memcpy(void *dest, const void *src, size_t count);
-int strncmp(const char *cs, const char *ct, size_t count);
-int strcmp(const char *cs, const char *ct);
-char *strcpy(char *dest, const char *src);
-char *strncpy(char *dest, const char *src, size_t count);
-void *memset(void *s,int c, size_t count);
-size_t strnlen(const char *s, size_t count);
-size_t strlen(const char *s);
-char *strchr(const char *s, int c);
-char *strstr(const char *s1, const char *s2);
-
-
-/* dlmalloc functions */
-struct mallinfo {
- int arena; /* non-mmapped space allocated from system */
- int ordblks; /* number of free chunks */
- int smblks; /* number of fastbin blocks */
- int hblks; /* number of mmapped regions */
- int hblkhd; /* space in mmapped regions */
- int usmblks; /* maximum total allocated space */
- int fsmblks; /* space available in freed fastbin blocks */
- int uordblks; /* total allocated space */
- int fordblks; /* total free space */
- int keepcost; /* top-most, releasable (via malloc_trim) space */
-};
-
-void *malloc(size_t n);
-void *calloc(size_t n_elements, size_t element_size);
-void free(void* p);
-void *realloc(void* p, size_t n);
-void *memalign(size_t alignment, size_t n);
-void *valloc(size_t n);
-struct mallinfo mallinfo(void);
-int mallopt(int parameter_number, int parameter_value);
-
-void **independent_calloc(size_t n_elements, size_t size, void* chunks[]);
-void **independent_comalloc(size_t n_elements, size_t sizes[], void* chunks[]);
-void *pvalloc(size_t n);
-void cfree(void* p);
-int malloc_trim(size_t pad);
-size_t malloc_usable_size(void* p);
-void malloc_stats(void);
-
-
-#endif /* _LIB_H_ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/h/mm.h
--- a/extras/mini-os/h/mm.h Wed Jul 6 08:50:11 2005
+++ /dev/null Wed Jul 6 10:46:29 2005
@@ -1,111 +0,0 @@
-/* -*- Mode:C; c-basic-offset:4; tab-width:4 -*-
- *
- * (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
- * Copyright (c) 2005, Keir A Fraser
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef _MM_H_
-#define _MM_H_
-
-#ifdef __x86_64__
-
-#define L1_PAGETABLE_SHIFT 12
-#define L2_PAGETABLE_SHIFT 21
-#define L3_PAGETABLE_SHIFT 30
-#define L4_PAGETABLE_SHIFT 39
-
-#define L1_PAGETABLE_ENTRIES 512
-#define L2_PAGETABLE_ENTRIES 512
-#define L3_PAGETABLE_ENTRIES 512
-#define L4_PAGETABLE_ENTRIES 512
-
-/* These are page-table limitations. Current CPUs support only 40-bit phys. */
-#define PADDR_BITS 52
-#define VADDR_BITS 48
-#define PADDR_MASK ((1UL << PADDR_BITS)-1)
-#define VADDR_MASK ((1UL << VADDR_BITS)-1)
-
-#define pte_to_mfn(_pte) (((_pte) & (PADDR_MASK&PAGE_MASK)) >> PAGE_SHIFT)
-
-/* Given a virtual address, get an entry offset into a page table. */
-#define l1_table_offset(_a) \
- (((_a) >> L1_PAGETABLE_SHIFT) & (L1_PAGETABLE_ENTRIES - 1))
-#define l2_table_offset(_a) \
- (((_a) >> L2_PAGETABLE_SHIFT) & (L2_PAGETABLE_ENTRIES - 1))
-#define l3_table_offset(_a) \
- (((_a) >> L3_PAGETABLE_SHIFT) & (L3_PAGETABLE_ENTRIES - 1))
-#define l4_table_offset(_a) \
- (((_a) >> L4_PAGETABLE_SHIFT) & (L4_PAGETABLE_ENTRIES - 1))
-#endif
-
-#define _PAGE_PRESENT 0x001UL
-#define _PAGE_RW 0x002UL
-#define _PAGE_USER 0x004UL
-#define _PAGE_PWT 0x008UL
-#define _PAGE_PCD 0x010UL
-#define _PAGE_ACCESSED 0x020UL
-#define _PAGE_DIRTY 0x040UL
-#define _PAGE_PAT 0x080UL
-#define _PAGE_PSE 0x080UL
-#define _PAGE_GLOBAL 0x100UL
-
-#define PAGE_SHIFT 12
-#define PAGE_SIZE (1UL << PAGE_SHIFT)
-#define PAGE_MASK (~(PAGE_SIZE-1))
-
-#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
-#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
-#define PFN_PHYS(x) ((x) << PAGE_SHIFT)
-
-/* to align the pointer to the (next) page boundary */
-#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
-extern unsigned long *phys_to_machine_mapping;
-#define pfn_to_mfn(_pfn) (phys_to_machine_mapping[(_pfn)])
-#define mfn_to_pfn(_mfn) (machine_to_phys_mapping[(_mfn)])
-static __inline__ unsigned long phys_to_machine(unsigned long phys)
-{
- unsigned long machine = pfn_to_mfn(phys >> PAGE_SHIFT);
- machine = (machine << PAGE_SHIFT) | (phys & ~PAGE_MASK);
- return machine;
-}
-static __inline__ unsigned long machine_to_phys(unsigned long machine)
-{
- unsigned long phys = mfn_to_pfn(machine >> PAGE_SHIFT);
- phys = (phys << PAGE_SHIFT) | (machine & ~PAGE_MASK);
- return phys;
-}
-
-#ifdef __x86_64__
-#define VIRT_START 0xFFFFFFFF00000000UL
-#else
-#define VIRT_START 0xC0000000UL
-#endif
-
-#define to_phys(x) ((unsigned long)(x)-VIRT_START)
-#define to_virt(x) ((void *)((unsigned long)(x)+VIRT_START))
-#define __va to_virt
-#define __pa to_phys
-
-void init_mm(void);
-unsigned long alloc_pages(int order);
-
-#endif /* _MM_H_ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/h/os.h
--- a/extras/mini-os/h/os.h Wed Jul 6 08:50:11 2005
+++ /dev/null Wed Jul 6 10:46:29 2005
@@ -1,280 +0,0 @@
-/******************************************************************************
- * os.h
- *
- * random collection of macros and definition
- */
-
-#ifndef _OS_H_
-#define _OS_H_
-
-#define NULL 0
-
-#if __GNUC__ == 2 && __GNUC_MINOR__ < 96
-#define __builtin_expect(x, expected_value) (x)
-#endif
-#define unlikely(x) __builtin_expect((x),0)
-
-#define smp_processor_id() 0
-#define preempt_disable() ((void)0)
-#define preempt_enable() ((void)0)
-
-#define force_evtchn_callback() ((void)HYPERVISOR_xen_version(0))
-
-#ifndef __ASSEMBLY__
-#include <types.h>
-#endif
-#include <xen-public/xen.h>
-
-#define __KERNEL_CS FLAT_KERNEL_CS
-#define __KERNEL_DS FLAT_KERNEL_DS
-#define __KERNEL_SS FLAT_KERNEL_SS
-
-#define TRAP_divide_error 0
-#define TRAP_debug 1
-#define TRAP_nmi 2
-#define TRAP_int3 3
-#define TRAP_overflow 4
-#define TRAP_bounds 5
-#define TRAP_invalid_op 6
-#define TRAP_no_device 7
-#define TRAP_double_fault 8
-#define TRAP_copro_seg 9
-#define TRAP_invalid_tss 10
-#define TRAP_no_segment 11
-#define TRAP_stack_error 12
-#define TRAP_gp_fault 13
-#define TRAP_page_fault 14
-#define TRAP_spurious_int 15
-#define TRAP_copro_error 16
-#define TRAP_alignment_check 17
-#define TRAP_machine_check 18
-#define TRAP_simd_error 19
-#define TRAP_deferred_nmi 31
-
-/* Everything below this point is not included by assembler (.S) files. */
-#ifndef __ASSEMBLY__
-
-#define pt_regs xen_regs
-
-void trap_init(void);
-void dump_regs(struct pt_regs *regs);
-
-/*
- * The use of 'barrier' in the following reflects their use as local-lock
- * operations. Reentrancy must be prevented (e.g., __cli()) /before/ following
- * critical operations are executed. All critical operations must complete
- * /before/ reentrancy is permitted (e.g., __sti()). Alpha architecture also
- * includes these barriers, for example.
- */
-
-#define __cli()
\
-do { \
- vcpu_info_t *_vcpu; \
- preempt_disable(); \
- _vcpu = &HYPERVISOR_shared_info->vcpu_data[smp_processor_id()]; \
- _vcpu->evtchn_upcall_mask = 1; \
- preempt_enable_no_resched(); \
- barrier(); \
-} while (0)
-
-#define __sti()
\
-do { \
- vcpu_info_t *_vcpu; \
- barrier(); \
- preempt_disable(); \
- _vcpu = &HYPERVISOR_shared_info->vcpu_data[smp_processor_id()]; \
- _vcpu->evtchn_upcall_mask = 0; \
- barrier(); /* unmask then check (avoid races) */ \
- if ( unlikely(_vcpu->evtchn_upcall_pending) ) \
- force_evtchn_callback(); \
- preempt_enable(); \
-} while (0)
-
-#define __save_flags(x)
\
-do { \
- vcpu_info_t *_vcpu; \
- _vcpu = &HYPERVISOR_shared_info->vcpu_data[smp_processor_id()]; \
- (x) = _vcpu->evtchn_upcall_mask; \
-} while (0)
-
-#define __restore_flags(x) \
-do { \
- vcpu_info_t *_vcpu; \
- barrier(); \
- preempt_disable(); \
- _vcpu = &HYPERVISOR_shared_info->vcpu_data[smp_processor_id()]; \
- if ((_vcpu->evtchn_upcall_mask = (x)) == 0) { \
- barrier(); /* unmask then check (avoid races) */ \
- if ( unlikely(_vcpu->evtchn_upcall_pending) ) \
- force_evtchn_callback(); \
- preempt_enable(); \
- } else \
- preempt_enable_no_resched(); \
-} while (0)
-
-#define safe_halt() ((void)0)
-
-#define __save_and_cli(x) \
-do { \
- vcpu_info_t *_vcpu; \
- preempt_disable(); \
- _vcpu = &HYPERVISOR_shared_info->vcpu_data[smp_processor_id()]; \
- (x) = _vcpu->evtchn_upcall_mask; \
- _vcpu->evtchn_upcall_mask = 1; \
- preempt_enable_no_resched(); \
- barrier(); \
-} while (0)
-
-#define local_irq_save(x) __save_and_cli(x)
-#define local_irq_restore(x) __restore_flags(x)
-#define local_save_flags(x) __save_flags(x)
-#define local_irq_disable() __cli()
-#define local_irq_enable() __sti()
-
-#define irqs_disabled() \
- HYPERVISOR_shared_info->vcpu_data[smp_processor_id()].evtchn_upcall_mask
-
-/* This is a barrier for the compiler only, NOT the processor! */
-#define barrier() __asm__ __volatile__("": : :"memory")
-
-#define LOCK_PREFIX ""
-#define LOCK ""
-#define ADDR (*(volatile long *) addr)
-/*
- * Make sure gcc doesn't try to be clever and move things around
- * on us. We need to use _exactly_ the address the user gave us,
- * not some alias that contains the same information.
- */
-typedef struct { volatile int counter; } atomic_t;
-
-
-#define xchg(ptr,v) \
- ((__typeof__(*(ptr)))__xchg((unsigned long)(v),(ptr),sizeof(*(ptr))))
-struct __xchg_dummy { unsigned long a[100]; };
-#define __xg(x) ((volatile struct __xchg_dummy *)(x))
-static __inline__ unsigned long __xchg(unsigned long x, volatile void * ptr,
- int size)
-{
- switch (size) {
- case 1:
- __asm__ __volatile__("xchgb %b0,%1"
- :"=q" (x)
- :"m" (*__xg(ptr)), "0" (x)
- :"memory");
- break;
- case 2:
- __asm__ __volatile__("xchgw %w0,%1"
- :"=r" (x)
- :"m" (*__xg(ptr)), "0" (x)
- :"memory");
- break;
- case 4:
- __asm__ __volatile__("xchgl %0,%1"
- :"=r" (x)
- :"m" (*__xg(ptr)), "0" (x)
- :"memory");
- break;
- }
- return x;
-}
-
-/**
- * test_and_clear_bit - Clear a bit and return its old value
- * @nr: Bit to set
- * @addr: Address to count from
- *
- * This operation is atomic and cannot be reordered.
- * It also implies a memory barrier.
- */
-static __inline__ int test_and_clear_bit(int nr, volatile void * addr)
-{
- int oldbit;
-
- __asm__ __volatile__( LOCK_PREFIX
- "btrl %2,%1\n\tsbbl %0,%0"
- :"=r" (oldbit),"=m" (ADDR)
- :"Ir" (nr) : "memory");
- return oldbit;
-}
-
-static __inline__ int constant_test_bit(int nr, const volatile void * addr)
-{
- return ((1UL << (nr & 31)) & (((const volatile unsigned int *) addr)[nr >>
5])) != 0;
-}
-
-static __inline__ int variable_test_bit(int nr, volatile void * addr)
-{
- int oldbit;
-
- __asm__ __volatile__(
- "btl %2,%1\n\tsbbl %0,%0"
- :"=r" (oldbit)
- :"m" (ADDR),"Ir" (nr));
- return oldbit;
-}
-
-#define test_bit(nr,addr) \
-(__builtin_constant_p(nr) ? \
- constant_test_bit((nr),(addr)) : \
- variable_test_bit((nr),(addr)))
-
-
-/**
- * set_bit - Atomically set a bit in memory
- * @nr: the bit to set
- * @addr: the address to start counting from
- *
- * This function is atomic and may not be reordered. See __set_bit()
- * if you do not require the atomic guarantees.
- * Note that @nr may be almost arbitrarily large; this function is not
- * restricted to acting on a single-word quantity.
- */
-static __inline__ void set_bit(int nr, volatile void * addr)
-{
- __asm__ __volatile__( LOCK_PREFIX
- "btsl %1,%0"
- :"=m" (ADDR)
- :"Ir" (nr));
-}
-
-/**
- * clear_bit - Clears a bit in memory
- * @nr: Bit to clear
- * @addr: Address to start counting from
- *
- * clear_bit() is atomic and may not be reordered. However, it does
- * not contain a memory barrier, so if it is used for locking purposes,
- * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit()
- * in order to ensure changes are visible on other processors.
- */
-static __inline__ void clear_bit(int nr, volatile void * addr)
-{
- __asm__ __volatile__( LOCK_PREFIX
- "btrl %1,%0"
- :"=m" (ADDR)
- :"Ir" (nr));
-}
-
-/**
- * atomic_inc - increment atomic variable
- * @v: pointer of type atomic_t
- *
- * Atomically increments @v by 1. Note that the guaranteed
- * useful range of an atomic_t is only 24 bits.
- */
-static __inline__ void atomic_inc(atomic_t *v)
-{
- __asm__ __volatile__(
- LOCK "incl %0"
- :"=m" (v->counter)
- :"m" (v->counter));
-}
-
-
-#define rdtscll(val) \
- __asm__ __volatile__("rdtsc" : "=A" (val))
-
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _OS_H_ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/h/time.h
--- a/extras/mini-os/h/time.h Wed Jul 6 08:50:11 2005
+++ /dev/null Wed Jul 6 10:46:29 2005
@@ -1,57 +0,0 @@
-/* -*- Mode:C; c-basic-offset:4; tab-width:4 -*-
- ****************************************************************************
- * (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
- ****************************************************************************
- *
- * File: time.h
- * Author: Rolf Neugebauer (neugebar@xxxxxxxxxxxxx)
- * Changes:
- *
- * Date: Jul 2003
- *
- * Environment: Xen Minimal OS
- * Description: Time and timer functions
- *
- ****************************************************************************
- * $Id: h-insert.h,v 1.4 2002/11/08 16:03:55 rn Exp $
- ****************************************************************************
- */
-
-#ifndef _TIME_H_
-#define _TIME_H_
-
-/*
- * System Time
- * 64 bit value containing the nanoseconds elapsed since boot time.
- * This value is adjusted by frequency drift.
- * NOW() returns the current time.
- * The other macros are for convenience to approximate short intervals
- * of real time into system time
- */
-typedef s64 s_time_t;
-#define NOW() ((s_time_t)get_s_time())
-#define SECONDS(_s) (((s_time_t)(_s)) * 1000000000UL )
-#define TENTHS(_ts) (((s_time_t)(_ts)) * 100000000UL )
-#define HUNDREDTHS(_hs) (((s_time_t)(_hs)) * 10000000UL )
-#define MILLISECS(_ms) (((s_time_t)(_ms)) * 1000000UL )
-#define MICROSECS(_us) (((s_time_t)(_us)) * 1000UL )
-#define Time_Max ((s_time_t) 0x7fffffffffffffffLL)
-#define FOREVER Time_Max
-
-
-/* wall clock time */
-typedef long time_t;
-typedef long suseconds_t;
-struct timeval {
- time_t tv_sec; /* seconds */
- suseconds_t tv_usec; /* microseconds */
-};
-
-
-/* prototypes */
-void init_time(void);
-s_time_t get_s_time(void);
-s_time_t get_v_time(void);
-void gettimeofday(struct timeval *tv);
-
-#endif /* _TIME_H_ */
diff -r 287583627544 -r 189c87adf876 extras/mini-os/h/types.h
--- a/extras/mini-os/h/types.h Wed Jul 6 08:50:11 2005
+++ /dev/null Wed Jul 6 10:46:29 2005
@@ -1,52 +0,0 @@
-/* -*- Mode:C; c-basic-offset:4; tab-width:4 -*-
- ****************************************************************************
- * (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
- ****************************************************************************
- *
- * File: types.h
- * Author: Rolf Neugebauer (neugebar@xxxxxxxxxxxxx)
- * Changes:
- *
- * Date: May 2003
- *
- * Environment: Xen Minimal OS
- * Description: a random collection of type definitions
- *
- ****************************************************************************
- * $Id: h-insert.h,v 1.4 2002/11/08 16:03:55 rn Exp $
- ****************************************************************************
- */
-
-#ifndef _TYPES_H_
-#define _TYPES_H_
-
-typedef signed char s8;
-typedef unsigned char u8;
-typedef signed short s16;
-typedef unsigned short u16;
-typedef signed int s32;
-typedef unsigned int u32;
-#ifdef __i386__
-typedef signed long long s64;
-typedef unsigned long long u64;
-#elif defined(__x86_64__)
-typedef signed long s64;
-typedef unsigned long u64;
-#endif
-
-typedef unsigned int size_t;
-
-/* FreeBSD compat types */
-typedef unsigned char u_char;
-typedef unsigned int u_int;
-typedef unsigned long u_long;
-#ifdef __i386__
-typedef long long quad_t;
-typedef unsigned long long u_quad_t;
-typedef unsigned int uintptr_t;
-#elif defined(__x86_64__)
-typedef long quad_t;
-typedef unsigned long u_quad_t;
-typedef unsigned long uintptr_t;
-#endif
-#endif /* _TYPES_H_ */
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