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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Clean up IO-APIC handling in domain0, and the hypercall interface
ChangeSet 1.1444, 2005/05/05 18:58:59+01:00, kaf24@xxxxxxxxxxxxxxxxxxxx
Clean up IO-APIC handling in domain0, and the hypercall interface
exported by Xen (inc. removal of PCI-related calls). This hopefully
fixes acpi=off.
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
b/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/apic.c | 32
b/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/io_apic.c | 111 +
b/tools/libxc/xc_physdev.c | 12
b/xen/arch/ia64/domain.c | 8
b/xen/arch/ia64/xenmisc.c | 27
b/xen/arch/ia64/xensetup.c | 3
b/xen/arch/x86/domain.c | 3
b/xen/arch/x86/io_apic.c | 84 +
b/xen/arch/x86/physdev.c | 145 ++
b/xen/common/Makefile | 1
b/xen/common/dom0_ops.c | 11
b/xen/common/domain.c | 11
b/xen/drivers/char/serial.c | 7
b/xen/include/asm-x86/config.h | 2
b/xen/include/asm-x86/physdev.h | 17
b/xen/include/public/dom0_ops.h | 14
b/xen/include/public/physdev.h | 55
b/xen/include/xen/sched.h | 4
linux-2.6.11-xen-sparse/include/asm-xen/asm-i386/io_apic.h | 229 ---
xen/common/physdev.c | 832 -------------
xen/include/xen/physdev.h | 19
21 files changed, 358 insertions(+), 1269 deletions(-)
diff -Nru a/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/apic.c
b/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/apic.c
--- a/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/apic.c 2005-05-05
14:06:46 -04:00
+++ b/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/apic.c 2005-05-05
14:06:46 -04:00
@@ -16,8 +16,32 @@
#include <linux/config.h>
#include <linux/init.h>
-#include <asm/apic.h>
+#include <linux/mm.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/bootmem.h>
+#include <linux/smp_lock.h>
+#include <linux/interrupt.h>
+#include <linux/mc146818rtc.h>
+#include <linux/kernel_stat.h>
+#include <linux/sysdev.h>
+
+#include <asm/atomic.h>
+#include <asm/smp.h>
+#include <asm/mtrr.h>
+#include <asm/mpspec.h>
+#include <asm/desc.h>
+#include <asm/arch_hooks.h>
+#include <asm/hpet.h>
+
+#include <mach_apic.h>
+
+#include "io_ports.h"
+
+/*
+ * Debug level
+ */
int apic_verbosity;
int get_physical_broadcast(void)
@@ -49,5 +73,11 @@
*/
int __init APIC_init_uniprocessor (void)
{
+#ifdef CONFIG_X86_IO_APIC
+ if (smp_found_config)
+ if (!skip_ioapic_setup && nr_ioapics)
+ setup_IO_APIC();
+#endif
+
return 0;
}
diff -Nru a/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/io_apic.c
b/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/io_apic.c
--- a/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/io_apic.c 2005-05-05
14:06:47 -04:00
+++ b/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/io_apic.c 2005-05-05
14:06:47 -04:00
@@ -37,18 +37,56 @@
#include <asm/smp.h>
#include <asm/desc.h>
#include <asm/timer.h>
-#include <asm/io_apic.h>
-#include <asm/apic.h>
#include <mach_apic.h>
#include "io_ports.h"
-int (*ioapic_renumber_irq)(int ioapic, int irq);
-atomic_t irq_mis_count;
+#ifdef CONFIG_XEN
+
+#include <asm-xen/xen-public/xen.h>
+#include <asm-xen/xen-public/physdev.h>
+
+/* Fake i8259 */
+#define make_8259A_irq(_irq) (io_apic_irqs &= ~(1UL<<(_irq)))
+#define disable_8259A_irq(_irq) ((void)0)
+#define i8259A_irq_pending(_irq) (0)
unsigned long io_apic_irqs;
+static inline unsigned int xen_io_apic_read(unsigned int apic, unsigned int
reg)
+{
+ physdev_op_t op;
+ int ret;
+
+ op.cmd = PHYSDEVOP_APIC_READ;
+ op.u.apic_op.apic = mp_ioapics[apic].mpc_apicid;
+ op.u.apic_op.offset = reg;
+ ret = HYPERVISOR_physdev_op(&op);
+ if (ret)
+ return ret;
+ return op.u.apic_op.value;
+}
+
+static inline void xen_io_apic_write(unsigned int apic, unsigned int reg,
unsigned int value)
+{
+ physdev_op_t op;
+
+ op.cmd = PHYSDEVOP_APIC_WRITE;
+ op.u.apic_op.apic = mp_ioapics[apic].mpc_apicid;
+ op.u.apic_op.offset = reg;
+ op.u.apic_op.value = value;
+ HYPERVISOR_physdev_op(&op);
+}
+
+#define io_apic_read(a,r) xen_io_apic_read(a,r)
+#define io_apic_write(a,r,v) xen_io_apic_write(a,r,v)
+
+#endif /* CONFIG_XEN */
+
+int (*ioapic_renumber_irq)(int ioapic, int irq);
+atomic_t irq_mis_count;
+
static DEFINE_SPINLOCK(ioapic_lock);
/*
@@ -111,6 +149,7 @@
entry->pin = pin;
}
+#ifndef CONFIG_XEN
/*
* Reroute an IRQ to a different pin.
*/
@@ -247,6 +286,9 @@
}
spin_unlock_irqrestore(&ioapic_lock, flags);
}
+#else
+#define clear_IO_APIC() ((void)0)
+#endif
#if defined(CONFIG_IRQBALANCE)
# include <asm/processor.h> /* kernel_thread() */
@@ -668,9 +710,7 @@
#ifndef CONFIG_SMP
void fastcall send_IPI_self(int vector)
{
-#if 1
- return;
-#else
+#ifndef CONFIG_XEN
unsigned int cfg;
/*
@@ -686,7 +726,6 @@
}
#endif /* !CONFIG_SMP */
-
/*
* support for broken MP BIOSs, enables hand-redirection of PIRQ0-7 to
* specific CPU-side IRQs.
@@ -752,6 +791,7 @@
return -1;
}
+#ifndef CONFIG_XEN
/*
* Find the pin to which IRQ[irq] (ISA) is connected
*/
@@ -774,6 +814,7 @@
}
return -1;
}
+#endif
/*
* Find a specific PCI IRQ entry.
@@ -821,6 +862,7 @@
return best_guess;
}
+#ifndef CONFIG_XEN
/*
* This function currently is only a helper for the i386 smp boot process
where
* we need to reprogram the ioredtbls to cater for the cpus which have come
online
@@ -844,6 +886,7 @@
}
}
+#endif /* !CONFIG_XEN */
/*
* EISA Edge/Level control register, ELCR
@@ -1133,7 +1176,7 @@
}
/* irq_vectors is indexed by the sum of all RTEs in all I/O APICs. */
-u8 irq_vector[NR_IRQ_VECTORS] = { FIRST_DEVICE_VECTOR , 0 };
+u8 irq_vector[NR_IRQ_VECTORS]; /* = { FIRST_DEVICE_VECTOR , 0 }; */
int assign_irq_vector(int irq)
{
@@ -1157,6 +1200,7 @@
return current_vector;
}
+#ifndef CONFIG_XEN
static struct hw_interrupt_type ioapic_level_type;
static struct hw_interrupt_type ioapic_edge_type;
@@ -1172,20 +1216,19 @@
irq_desc[vector].handler = &ioapic_level_type;
else
irq_desc[vector].handler = &ioapic_edge_type;
-#if 0
set_intr_gate(vector, interrupt[vector]);
-#endif
} else {
if ((trigger == IOAPIC_AUTO && IO_APIC_irq_trigger(irq)) ||
trigger == IOAPIC_LEVEL)
irq_desc[irq].handler = &ioapic_level_type;
else
irq_desc[irq].handler = &ioapic_edge_type;
-#if 0
set_intr_gate(vector, interrupt[irq]);
-#endif
}
}
+#else
+#define ioapic_register_intr(_irq,_vector,_trigger) ((void)0)
+#endif
void __init setup_IO_APIC_irqs(void)
{
@@ -1241,7 +1284,7 @@
else
add_pin_to_irq(irq, apic, pin);
- if (!apic && !IO_APIC_IRQ(irq))
+ if (/*!apic &&*/ !IO_APIC_IRQ(irq))
continue;
if (IO_APIC_IRQ(irq)) {
@@ -1249,10 +1292,8 @@
entry.vector = vector;
ioapic_register_intr(irq, vector, IOAPIC_AUTO);
-#if 0
if (!apic && (irq < 16))
disable_8259A_irq(irq);
-#endif
}
spin_lock_irqsave(&ioapic_lock, flags);
io_apic_write(apic, 0x11+2*pin, *(((int *)&entry)+1));
@@ -1268,6 +1309,7 @@
/*
* Set up the 8259A-master output pin:
*/
+#ifndef CONFIG_XEN
void __init setup_ExtINT_IRQ0_pin(unsigned int pin, int vector)
{
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