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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v5 09/25] arm: header files
From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
A simple implementation of everything under asm-arm and arch-arm.h; some
of these files are shamelessly taken from Linux.
Changes in v4:
- bring atomic access routines in line with upstream changes;
- fix build for -wunused-values;
Changes in v2:
- remove div64.
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
---
xen/include/asm-arm/atomic.h | 236 ++++++++++++++++++++++++++++++++
xen/include/asm-arm/bitops.h | 213 +++++++++++++++++++++++++++++
xen/include/asm-arm/bug.h | 15 ++
xen/include/asm-arm/byteorder.h | 16 +++
xen/include/asm-arm/cache.h | 20 +++
xen/include/asm-arm/config.h | 122 +++++++++++++++++
xen/include/asm-arm/cpregs.h | 207 ++++++++++++++++++++++++++++
xen/include/asm-arm/current.h | 60 ++++++++
xen/include/asm-arm/debugger.h | 15 ++
xen/include/asm-arm/delay.h | 15 ++
xen/include/asm-arm/desc.h | 12 ++
xen/include/asm-arm/div64.h | 235 ++++++++++++++++++++++++++++++++
xen/include/asm-arm/elf.h | 33 +++++
xen/include/asm-arm/event.h | 41 ++++++
xen/include/asm-arm/flushtlb.h | 31 +++++
xen/include/asm-arm/grant_table.h | 35 +++++
xen/include/asm-arm/hardirq.h | 28 ++++
xen/include/asm-arm/hypercall.h | 24 ++++
xen/include/asm-arm/init.h | 12 ++
xen/include/asm-arm/io.h | 12 ++
xen/include/asm-arm/iocap.h | 20 +++
xen/include/asm-arm/multicall.h | 23 +++
xen/include/asm-arm/nmi.h | 15 ++
xen/include/asm-arm/numa.h | 21 +++
xen/include/asm-arm/paging.h | 13 ++
xen/include/asm-arm/pci.h | 7 +
xen/include/asm-arm/percpu.h | 28 ++++
xen/include/asm-arm/processor.h | 269 +++++++++++++++++++++++++++++++++++++
xen/include/asm-arm/regs.h | 43 ++++++
xen/include/asm-arm/setup.h | 16 +++
xen/include/asm-arm/smp.h | 25 ++++
xen/include/asm-arm/softirq.h | 15 ++
xen/include/asm-arm/spinlock.h | 144 ++++++++++++++++++++
xen/include/asm-arm/string.h | 38 +++++
xen/include/asm-arm/system.h | 202 ++++++++++++++++++++++++++++
xen/include/asm-arm/trace.h | 12 ++
xen/include/asm-arm/types.h | 57 ++++++++
xen/include/asm-arm/xenoprof.h | 12 ++
xen/include/public/arch-arm.h | 125 +++++++++++++++++
xen/include/public/xen.h | 2 +
40 files changed, 2469 insertions(+), 0 deletions(-)
create mode 100644 xen/include/asm-arm/atomic.h
create mode 100644 xen/include/asm-arm/bitops.h
create mode 100644 xen/include/asm-arm/bug.h
create mode 100644 xen/include/asm-arm/byteorder.h
create mode 100644 xen/include/asm-arm/cache.h
create mode 100644 xen/include/asm-arm/config.h
create mode 100644 xen/include/asm-arm/cpregs.h
create mode 100644 xen/include/asm-arm/current.h
create mode 100644 xen/include/asm-arm/debugger.h
create mode 100644 xen/include/asm-arm/delay.h
create mode 100644 xen/include/asm-arm/desc.h
create mode 100644 xen/include/asm-arm/div64.h
create mode 100644 xen/include/asm-arm/elf.h
create mode 100644 xen/include/asm-arm/event.h
create mode 100644 xen/include/asm-arm/flushtlb.h
create mode 100644 xen/include/asm-arm/grant_table.h
create mode 100644 xen/include/asm-arm/hardirq.h
create mode 100644 xen/include/asm-arm/hypercall.h
create mode 100644 xen/include/asm-arm/init.h
create mode 100644 xen/include/asm-arm/io.h
create mode 100644 xen/include/asm-arm/iocap.h
create mode 100644 xen/include/asm-arm/multicall.h
create mode 100644 xen/include/asm-arm/nmi.h
create mode 100644 xen/include/asm-arm/numa.h
create mode 100644 xen/include/asm-arm/paging.h
create mode 100644 xen/include/asm-arm/pci.h
create mode 100644 xen/include/asm-arm/percpu.h
create mode 100644 xen/include/asm-arm/processor.h
create mode 100644 xen/include/asm-arm/regs.h
create mode 100644 xen/include/asm-arm/setup.h
create mode 100644 xen/include/asm-arm/smp.h
create mode 100644 xen/include/asm-arm/softirq.h
create mode 100644 xen/include/asm-arm/spinlock.h
create mode 100644 xen/include/asm-arm/string.h
create mode 100644 xen/include/asm-arm/system.h
create mode 100644 xen/include/asm-arm/trace.h
create mode 100644 xen/include/asm-arm/types.h
create mode 100644 xen/include/asm-arm/xenoprof.h
create mode 100644 xen/include/public/arch-arm.h
diff --git a/xen/include/asm-arm/atomic.h b/xen/include/asm-arm/atomic.h
new file mode 100644
index 0000000..c7eadd6
--- /dev/null
+++ b/xen/include/asm-arm/atomic.h
@@ -0,0 +1,236 @@
+/*
+ * arch/arm/include/asm/atomic.h
+ *
+ * Copyright (C) 1996 Russell King.
+ * Copyright (C) 2002 Deep Blue Solutions Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ARCH_ARM_ATOMIC__
+#define __ARCH_ARM_ATOMIC__
+
+#include <xen/config.h>
+#include <asm/system.h>
+
+#define build_atomic_read(name, size, type, reg) \
+static inline type name(const volatile type *addr) \
+{ \
+ type ret; \
+ asm volatile("ldr" size " %0,%1" \
+ : reg (ret) \
+ : "m" (*(volatile type *)addr)); \
+ return ret; \
+}
+
+#define build_atomic_write(name, size, type, reg) \
+static inline void name(volatile type *addr, type val) \
+{ \
+ asm volatile("str" size " %1,%0" \
+ : "=m" (*(volatile type *)addr) \
+ : reg (val)); \
+}
+
+build_atomic_read(read_u8_atomic, "b", uint8_t, "=q")
+build_atomic_read(read_u16_atomic, "h", uint16_t, "=r")
+build_atomic_read(read_u32_atomic, "", uint32_t, "=r")
+//build_atomic_read(read_u64_atomic, "d", uint64_t, "=r")
+build_atomic_read(read_int_atomic, "", int, "=r")
+
+build_atomic_write(write_u8_atomic, "b", uint8_t, "q")
+build_atomic_write(write_u16_atomic, "h", uint16_t, "r")
+build_atomic_write(write_u32_atomic, "", uint32_t, "r")
+//build_atomic_write(write_u64_atomic, "d", uint64_t, "r")
+build_atomic_write(write_int_atomic, "", int, "r")
+
+void __bad_atomic_size(void);
+
+#define read_atomic(p) ({ \
+ typeof(*p) __x; \
+ switch ( sizeof(*p) ) { \
+ case 1: __x = (typeof(*p))read_u8_atomic((uint8_t *)p); break; \
+ case 2: __x = (typeof(*p))read_u16_atomic((uint16_t *)p); break; \
+ case 4: __x = (typeof(*p))read_u32_atomic((uint32_t *)p); break; \
+ default: __x = 0; __bad_atomic_size(); break; \
+ } \
+ __x; \
+})
+
+#define write_atomic(p, x) ({ \
+ typeof(*p) __x = (x); \
+ switch ( sizeof(*p) ) { \
+ case 1: write_u8_atomic((uint8_t *)p, (uint8_t)__x); break; \
+ case 2: write_u16_atomic((uint16_t *)p, (uint16_t)__x); break; \
+ case 4: write_u32_atomic((uint32_t *)p, (uint32_t)__x); break; \
+ default: __bad_atomic_size(); break; \
+ } \
+ __x; \
+})
+
+/*
+ * NB. I've pushed the volatile qualifier into the operations. This allows
+ * fast accessors such as _atomic_read() and _atomic_set() which don't give
+ * the compiler a fit.
+ */
+typedef struct { int counter; } atomic_t;
+
+#define ATOMIC_INIT(i) { (i) }
+
+/*
+ * On ARM, ordinary assignment (str instruction) doesn't clear the local
+ * strex/ldrex monitor on some implementations. The reason we can use it for
+ * atomic_set() is the clrex or dummy strex done on every exception return.
+ */
+#define _atomic_read(v) ((v).counter)
+#define atomic_read(v) (*(volatile int *)&(v)->counter)
+
+#define _atomic_set(v,i) (((v).counter) = (i))
+#define atomic_set(v,i) (((v)->counter) = (i))
+
+/*
+ * ARMv6 UP and SMP safe atomic ops. We use load exclusive and
+ * store exclusive to ensure that these are atomic. We may loop
+ * to ensure that the update happens.
+ */
+static inline void atomic_add(int i, atomic_t *v)
+{
+ unsigned long tmp;
+ int result;
+
+ __asm__ __volatile__("@ atomic_add\n"
+"1: ldrex %0, [%3]\n"
+" add %0, %0, %4\n"
+" strex %1, %0, [%3]\n"
+" teq %1, #0\n"
+" bne 1b"
+ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+ : "r" (&v->counter), "Ir" (i)
+ : "cc");
+}
+
+static inline int atomic_add_return(int i, atomic_t *v)
+{
+ unsigned long tmp;
+ int result;
+
+ smp_mb();
+
+ __asm__ __volatile__("@ atomic_add_return\n"
+"1: ldrex %0, [%3]\n"
+" add %0, %0, %4\n"
+" strex %1, %0, [%3]\n"
+" teq %1, #0\n"
+" bne 1b"
+ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+ : "r" (&v->counter), "Ir" (i)
+ : "cc");
+
+ smp_mb();
+
+ return result;
+}
+
+static inline void atomic_sub(int i, atomic_t *v)
+{
+ unsigned long tmp;
+ int result;
+
+ __asm__ __volatile__("@ atomic_sub\n"
+"1: ldrex %0, [%3]\n"
+" sub %0, %0, %4\n"
+" strex %1, %0, [%3]\n"
+" teq %1, #0\n"
+" bne 1b"
+ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+ : "r" (&v->counter), "Ir" (i)
+ : "cc");
+}
+
+static inline int atomic_sub_return(int i, atomic_t *v)
+{
+ unsigned long tmp;
+ int result;
+
+ smp_mb();
+
+ __asm__ __volatile__("@ atomic_sub_return\n"
+"1: ldrex %0, [%3]\n"
+" sub %0, %0, %4\n"
+" strex %1, %0, [%3]\n"
+" teq %1, #0\n"
+" bne 1b"
+ : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+ : "r" (&v->counter), "Ir" (i)
+ : "cc");
+
+ smp_mb();
+
+ return result;
+}
+
+static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
+{
+ unsigned long oldval, res;
+
+ smp_mb();
+
+ do {
+ __asm__ __volatile__("@ atomic_cmpxchg\n"
+ "ldrex %1, [%3]\n"
+ "mov %0, #0\n"
+ "teq %1, %4\n"
+ "strexeq %0, %5, [%3]\n"
+ : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
+ : "r" (&ptr->counter), "Ir" (old), "r" (new)
+ : "cc");
+ } while (res);
+
+ smp_mb();
+
+ return oldval;
+}
+
+static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
+{
+ unsigned long tmp, tmp2;
+
+ __asm__ __volatile__("@ atomic_clear_mask\n"
+"1: ldrex %0, [%3]\n"
+" bic %0, %0, %4\n"
+" strex %1, %0, [%3]\n"
+" teq %1, #0\n"
+" bne 1b"
+ : "=&r" (tmp), "=&r" (tmp2), "+Qo" (*addr)
+ : "r" (addr), "Ir" (mask)
+ : "cc");
+}
+
+#define atomic_inc(v) atomic_add(1, v)
+#define atomic_dec(v) atomic_sub(1, v)
+
+#define atomic_inc_and_test(v) (atomic_add_return(1, v) == 0)
+#define atomic_dec_and_test(v) (atomic_sub_return(1, v) == 0)
+#define atomic_inc_return(v) (atomic_add_return(1, v))
+#define atomic_dec_return(v) (atomic_sub_return(1, v))
+#define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
+
+#define atomic_add_negative(i,v) (atomic_add_return(i, v) < 0)
+
+static inline atomic_t atomic_compareandswap(
+ atomic_t old, atomic_t new, atomic_t *v)
+{
+ atomic_t rc;
+ rc.counter = __cmpxchg(&v->counter, old.counter, new.counter, sizeof(int));
+ return rc;
+}
+
+#endif /* __ARCH_ARM_ATOMIC__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/bitops.h b/xen/include/asm-arm/bitops.h
new file mode 100644
index 0000000..e5c1781
--- /dev/null
+++ b/xen/include/asm-arm/bitops.h
@@ -0,0 +1,213 @@
+/*
+ * Copyright 1995, Russell King.
+ * Various bits and pieces copyrights include:
+ * Linus Torvalds (test_bit).
+ * Big endian support: Copyright 2001, Nicolas Pitre
+ * reworked by rmk.
+ */
+
+#ifndef _ARM_BITOPS_H
+#define _ARM_BITOPS_H
+
+extern void _set_bit(int nr, volatile void * p);
+extern void _clear_bit(int nr, volatile void * p);
+extern void _change_bit(int nr, volatile void * p);
+extern int _test_and_set_bit(int nr, volatile void * p);
+extern int _test_and_clear_bit(int nr, volatile void * p);
+extern int _test_and_change_bit(int nr, volatile void * p);
+
+#define set_bit(n,p) _set_bit(n,p)
+#define clear_bit(n,p) _clear_bit(n,p)
+#define change_bit(n,p) _change_bit(n,p)
+#define test_and_set_bit(n,p) _test_and_set_bit(n,p)
+#define test_and_clear_bit(n,p) _test_and_clear_bit(n,p)
+#define test_and_change_bit(n,p) _test_and_change_bit(n,p)
+
+#define BIT(nr) (1UL << (nr))
+#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG))
+#define BIT_WORD(nr) ((nr) / BITS_PER_LONG)
+#define BITS_PER_BYTE 8
+
+#define ADDR (*(volatile long *) addr)
+#define CONST_ADDR (*(const volatile long *) addr)
+
+/**
+ * __test_and_set_bit - Set a bit and return its old value
+ * @nr: Bit to set
+ * @addr: Address to count from
+ *
+ * This operation is non-atomic and can be reordered.
+ * If two examples of this operation race, one can appear to succeed
+ * but actually fail. You must protect multiple accesses with a lock.
+ */
+static inline int __test_and_set_bit(int nr, volatile void *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ volatile unsigned long *p =
+ ((volatile unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long old = *p;
+
+ *p = old | mask;
+ return (old & mask) != 0;
+}
+
+/**
+ * __test_and_clear_bit - Clear a bit and return its old value
+ * @nr: Bit to clear
+ * @addr: Address to count from
+ *
+ * This operation is non-atomic and can be reordered.
+ * If two examples of this operation race, one can appear to succeed
+ * but actually fail. You must protect multiple accesses with a lock.
+ */
+static inline int __test_and_clear_bit(int nr, volatile void *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ volatile unsigned long *p =
+ ((volatile unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long old = *p;
+
+ *p = old & ~mask;
+ return (old & mask) != 0;
+}
+
+/* WARNING: non atomic and it can be reordered! */
+static inline int __test_and_change_bit(int nr,
+ volatile void *addr)
+{
+ unsigned long mask = BIT_MASK(nr);
+ volatile unsigned long *p =
+ ((volatile unsigned long *)addr) + BIT_WORD(nr);
+ unsigned long old = *p;
+
+ *p = old ^ mask;
+ return (old & mask) != 0;
+}
+
+/**
+ * test_bit - Determine whether a bit is set
+ * @nr: bit number to test
+ * @addr: Address to start counting from
+ */
+static inline int test_bit(int nr, const volatile void *addr)
+{
+ const volatile unsigned long *p = (const volatile unsigned long *)addr;
+ return 1UL & (p[BIT_WORD(nr)] >> (nr & (BITS_PER_LONG-1)));
+}
+
+/*
+ * Little endian assembly bitops. nr = 0 -> byte 0 bit 0.
+ */
+extern int _find_first_zero_bit_le(const void * p, unsigned size);
+extern int _find_next_zero_bit_le(const void * p, int size, int offset);
+extern int _find_first_bit_le(const unsigned long *p, unsigned size);
+extern int _find_next_bit_le(const unsigned long *p, int size, int offset);
+
+/*
+ * Big endian assembly bitops. nr = 0 -> byte 3 bit 0.
+ */
+extern int _find_first_zero_bit_be(const void * p, unsigned size);
+extern int _find_next_zero_bit_be(const void * p, int size, int offset);
+extern int _find_first_bit_be(const unsigned long *p, unsigned size);
+extern int _find_next_bit_be(const unsigned long *p, int size, int offset);
+
+#ifndef __ARMEB__
+/*
+ * These are the little endian, atomic definitions.
+ */
+#define find_first_zero_bit(p,sz) _find_first_zero_bit_le(p,sz)
+#define find_next_zero_bit(p,sz,off) _find_next_zero_bit_le(p,sz,off)
+#define find_first_bit(p,sz) _find_first_bit_le(p,sz)
+#define find_next_bit(p,sz,off) _find_next_bit_le(p,sz,off)
+
+#else
+/*
+ * These are the big endian, atomic definitions.
+ */
+#define find_first_zero_bit(p,sz) _find_first_zero_bit_be(p,sz)
+#define find_next_zero_bit(p,sz,off) _find_next_zero_bit_be(p,sz,off)
+#define find_first_bit(p,sz) _find_first_bit_be(p,sz)
+#define find_next_bit(p,sz,off) _find_next_bit_be(p,sz,off)
+
+#endif
+
+static inline int constant_fls(int x)
+{
+ int r = 32;
+
+ if (!x)
+ return 0;
+ if (!(x & 0xffff0000u)) {
+ x <<= 16;
+ r -= 16;
+ }
+ if (!(x & 0xff000000u)) {
+ x <<= 8;
+ r -= 8;
+ }
+ if (!(x & 0xf0000000u)) {
+ x <<= 4;
+ r -= 4;
+ }
+ if (!(x & 0xc0000000u)) {
+ x <<= 2;
+ r -= 2;
+ }
+ if (!(x & 0x80000000u)) {
+ x <<= 1;
+ r -= 1;
+ }
+ return r;
+}
+
+/*
+ * On ARMv5 and above those functions can be implemented around
+ * the clz instruction for much better code efficiency.
+ */
+
+static inline int fls(int x)
+{
+ int ret;
+
+ if (__builtin_constant_p(x))
+ return constant_fls(x);
+
+ asm("clz\t%0, %1" : "=r" (ret) : "r" (x));
+ ret = 32 - ret;
+ return ret;
+}
+
+#define ffs(x) ({ unsigned long __t = (x); fls(__t & -__t); })
+
+/**
+ * find_first_set_bit - find the first set bit in @word
+ * @word: the word to search
+ *
+ * Returns the bit-number of the first set bit (first bit being 0).
+ * The input must *not* be zero.
+ */
+static inline unsigned int find_first_set_bit(unsigned long word)
+{
+ return ffs(word) - 1;
+}
+
+/**
+ * hweightN - returns the hamming weight of a N-bit word
+ * @x: the word to weigh
+ *
+ * The Hamming Weight of a number is the total number of bits set in it.
+ */
+#define hweight64(x) generic_hweight64(x)
+#define hweight32(x) generic_hweight32(x)
+#define hweight16(x) generic_hweight16(x)
+#define hweight8(x) generic_hweight8(x)
+
+#endif /* _ARM_BITOPS_H */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/bug.h b/xen/include/asm-arm/bug.h
new file mode 100644
index 0000000..bc2532c
--- /dev/null
+++ b/xen/include/asm-arm/bug.h
@@ -0,0 +1,15 @@
+#ifndef __ARM_BUG_H__
+#define __ARM_BUG_H__
+
+#define BUG() __bug(__FILE__, __LINE__)
+#define WARN() __warn(__FILE__, __LINE__)
+
+#endif /* __X86_BUG_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/byteorder.h b/xen/include/asm-arm/byteorder.h
new file mode 100644
index 0000000..f6ad883
--- /dev/null
+++ b/xen/include/asm-arm/byteorder.h
@@ -0,0 +1,16 @@
+#ifndef __ASM_ARM_BYTEORDER_H__
+#define __ASM_ARM_BYTEORDER_H__
+
+#define __BYTEORDER_HAS_U64__
+
+#include <xen/byteorder/little_endian.h>
+
+#endif /* __ASM_ARM_BYTEORDER_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/cache.h b/xen/include/asm-arm/cache.h
new file mode 100644
index 0000000..41b6291
--- /dev/null
+++ b/xen/include/asm-arm/cache.h
@@ -0,0 +1,20 @@
+#ifndef __ARCH_ARM_CACHE_H
+#define __ARCH_ARM_CACHE_H
+
+#include <xen/config.h>
+
+/* L1 cache line size */
+#define L1_CACHE_SHIFT (CONFIG_ARM_L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
+#endif
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/config.h b/xen/include/asm-arm/config.h
new file mode 100644
index 0000000..12285dd
--- /dev/null
+++ b/xen/include/asm-arm/config.h
@@ -0,0 +1,122 @@
+/******************************************************************************
+ * config.h
+ *
+ * A Linux-style configuration list.
+ */
+
+#ifndef __ARM_CONFIG_H__
+#define __ARM_CONFIG_H__
+
+#define CONFIG_PAGING_LEVELS 3
+
+#define CONFIG_ARM 1
+
+#define CONFIG_ARM_L1_CACHE_SHIFT 7 /* XXX */
+
+#define CONFIG_SMP 1
+
+#define CONFIG_DOMAIN_PAGE 1
+
+#define OPT_CONSOLE_STR "com1"
+
+#ifdef MAX_PHYS_CPUS
+#define NR_CPUS MAX_PHYS_CPUS
+#else
+#define NR_CPUS 128
+#endif
+
+#define MAX_VIRT_CPUS 128 /* XXX */
+#define MAX_HVM_VCPUS MAX_VIRT_CPUS
+
+#define asmlinkage /* Nothing needed */
+
+/* Linkage for ARM */
+#define __ALIGN .align 2
+#define __ALIGN_STR ".align 2"
+#ifdef __ASSEMBLY__
+#define ALIGN __ALIGN
+#define ALIGN_STR __ALIGN_STR
+#define ENTRY(name) \
+ .globl name; \
+ ALIGN; \
+ name:
+#define END(name) \
+ .size name, .-name
+#define ENDPROC(name) \
+ .type name, %function; \
+ END(name)
+#endif
+
+/*
+ * Memory layout:
+ * 0 - 2M Unmapped
+ * 2M - 4M Xen text, data, bss
+ * 4M - 6M Fixmap: special-purpose 4K mapping slots
+ *
+ * 32M - 128M Frametable: 24 bytes per page for 16GB of RAM
+ *
+ * 1G - 2G Xenheap: always-mapped memory
+ * 2G - 4G Domheap: on-demand-mapped
+ */
+
+#define XEN_VIRT_START 0x00200000
+#define FIXMAP_ADDR(n) (0x00400000 + (n) * PAGE_SIZE)
+#define FRAMETABLE_VIRT_START 0x02000000
+#define XENHEAP_VIRT_START 0x40000000
+#define DOMHEAP_VIRT_START 0x80000000
+
+#define HYPERVISOR_VIRT_START mk_unsigned_long(XEN_VIRT_START)
+
+#define DOMHEAP_ENTRIES 1024 /* 1024 2MB mapping slots */
+
+/* Fixmap slots */
+#define FIXMAP_CONSOLE 0 /* The primary UART */
+#define FIXMAP_PT 1 /* Temporary mappings of pagetable pages */
+#define FIXMAP_MISC 2 /* Ephemeral mappings of hardware */
+#define FIXMAP_GICD 3 /* Interrupt controller: distributor registers */
+#define FIXMAP_GICC1 4 /* Interrupt controller: CPU registers (first page)
*/
+#define FIXMAP_GICC2 5 /* Interrupt controller: CPU registers (second
page) */
+#define FIXMAP_GICH 6 /* Interrupt controller: virtual interface control
registers */
+
+#define PAGE_SHIFT 12
+
+#ifndef __ASSEMBLY__
+#define PAGE_SIZE (1L << PAGE_SHIFT)
+#else
+#define PAGE_SIZE (1 << PAGE_SHIFT)
+#endif
+#define PAGE_MASK (~(PAGE_SIZE-1))
+#define PAGE_FLAG_MASK (~0)
+
+#define STACK_ORDER 3
+#define STACK_SIZE (PAGE_SIZE << STACK_ORDER)
+
+#ifndef __ASSEMBLY__
+extern unsigned long xen_phys_start;
+extern unsigned long xenheap_phys_end;
+extern unsigned long frametable_virt_end;
+#endif
+
+#define supervisor_mode_kernel (0)
+
+#define watchdog_disable() ((void)0)
+#define watchdog_enable() ((void)0)
+
+/* Board-specific: base address of PL011 UART */
+#define EARLY_UART_ADDRESS 0x1c090000
+/* Board-specific: base address of GIC + its regs */
+#define GIC_BASE_ADDRESS 0x2c000000
+#define GIC_DR_OFFSET 0x1000
+#define GIC_CR_OFFSET 0x2000
+#define GIC_HR_OFFSET 0x4000 /* Guess work
http://lists.infradead.org/pipermail/linux-arm-kernel/2011-September/064219.html
*/
+#define GIC_VR_OFFSET 0x6000 /* Virtual Machine CPU interface) */
+
+#endif /* __ARM_CONFIG_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/cpregs.h b/xen/include/asm-arm/cpregs.h
new file mode 100644
index 0000000..3a4028d
--- /dev/null
+++ b/xen/include/asm-arm/cpregs.h
@@ -0,0 +1,207 @@
+#ifndef __ASM_ARM_CPREGS_H
+#define __ASM_ARM_CPREGS_H
+
+#include <xen/stringify.h>
+
+/* Co-processor registers */
+
+/* Layout as used in assembly, with src/dest registers mixed in */
+#define __CP32(r, coproc, opc1, crn, crm, opc2) coproc, opc1, r, crn, crm, opc2
+#define __CP64(r1, r2, coproc, opc, crm) coproc, opc, r1, r2, crm
+#define CP32(r, name...) __CP32(r, name)
+#define CP64(r, name...) __CP64(r, name)
+
+/* Stringified for inline assembly */
+#define LOAD_CP32(r, name...) "mrc " __stringify(CP32(%r, name)) ";"
+#define STORE_CP32(r, name...) "mcr " __stringify(CP32(%r, name)) ";"
+#define LOAD_CP64(r, name...) "mrrc " __stringify(CP64(%r, %H##r, name)) ";"
+#define STORE_CP64(r, name...) "mcrr " __stringify(CP64(%r, %H##r, name)) ";"
+
+/* C wrappers */
+#define READ_CP32(name...) ({ \
+ register uint32_t _r; \
+ asm volatile(LOAD_CP32(0, name) : "=r" (_r)); \
+ _r; })
+
+#define WRITE_CP32(v, name...) do { \
+ register uint32_t _r = (v); \
+ asm volatile(STORE_CP32(0, name) : : "r" (_r)); \
+} while (0)
+
+#define READ_CP64(name...) ({ \
+ register uint64_t _r; \
+ asm volatile(LOAD_CP64(0, name) : "=r" (_r)); \
+ _r; })
+
+#define WRITE_CP64(v, name...) do { \
+ register uint64_t _r = (v); \
+ asm volatile(STORE_CP64(0, name) : : "r" (_r)); \
+} while (0)
+
+#define __HSR_CPREG_c0 0
+#define __HSR_CPREG_c1 1
+#define __HSR_CPREG_c2 2
+#define __HSR_CPREG_c3 3
+#define __HSR_CPREG_c4 4
+#define __HSR_CPREG_c5 5
+#define __HSR_CPREG_c6 6
+#define __HSR_CPREG_c7 7
+#define __HSR_CPREG_c8 8
+#define __HSR_CPREG_c9 9
+#define __HSR_CPREG_c10 10
+#define __HSR_CPREG_c11 11
+#define __HSR_CPREG_c12 12
+#define __HSR_CPREG_c13 13
+#define __HSR_CPREG_c14 14
+#define __HSR_CPREG_c15 15
+
+#define __HSR_CPREG_0 0
+#define __HSR_CPREG_1 1
+#define __HSR_CPREG_2 2
+#define __HSR_CPREG_3 3
+#define __HSR_CPREG_4 4
+#define __HSR_CPREG_5 5
+#define __HSR_CPREG_6 6
+#define __HSR_CPREG_7 7
+
+#define _HSR_CPREG32(cp,op1,crn,crm,op2) \
+ ((__HSR_CPREG_##crn) << HSR_CP32_CRN_SHIFT) | \
+ ((__HSR_CPREG_##crm) << HSR_CP32_CRM_SHIFT) | \
+ ((__HSR_CPREG_##op1) << HSR_CP32_OP1_SHIFT) | \
+ ((__HSR_CPREG_##op2) << HSR_CP32_OP2_SHIFT)
+
+#define _HSR_CPREG64(cp,op1,crm) \
+ ((__HSR_CPREG_##crm) << HSR_CP64_CRM_SHIFT) | \
+ ((__HSR_CPREG_##op1) << HSR_CP64_OP1_SHIFT)
+
+/* Encode a register as per HSR ISS pattern */
+#define HSR_CPREG32(X) _HSR_CPREG32(X)
+#define HSR_CPREG64(X) _HSR_CPREG64(X)
+
+/*
+ * Order registers by Coprocessor-> CRn-> Opcode 1-> CRm-> Opcode 2
+ *
+ * This matches the ordering used in the ARM as well as the groupings
+ * which the CP registers are allocated in.
+ *
+ * This is slightly different to the form of the instruction
+ * arguments, which are cp,opc1,crn,crm,opc2.
+ */
+
+/* Coprocessor 15 */
+
+/* CP15 CR0: CPUID and Cache Type Registers */
+#define ID_PFR0 p15,0,c0,c1,0 /* Processor Feature Register 0 */
+#define ID_PFR1 p15,0,c0,c1,1 /* Processor Feature Register 1 */
+#define CCSIDR p15,1,c0,c0,0 /* Cache Size ID Registers */
+#define CLIDR p15,1,c0,c0,1 /* Cache Level ID Register */
+#define CSSELR p15,2,c0,c0,0 /* Cache Size Selection Register */
+
+/* CP15 CR1: System Control Registers */
+#define SCTLR p15,0,c1,c0,0 /* System Control Register */
+#define SCR p15,0,c1,c1,0 /* Secure Configuration Register */
+#define NSACR p15,0,c1,c1,2 /* Non-Secure Access Control Register
*/
+#define HSCTLR p15,4,c1,c0,0 /* Hyp. System Control Register */
+#define HCR p15,4,c1,c1,0 /* Hyp. Configuration Register */
+
+/* CP15 CR2: Translation Table Base and Control Registers */
+#define TTBR0 p15,0,c2,c0,0 /* Translation Table Base Reg. 0 */
+#define TTBR1 p15,0,c2,c0,1 /* Translation Table Base Reg. 1 */
+#define TTBCR p15,0,c2,c0,2 /* Translatation Table Base Control
Register */
+#define HTTBR p15,4,c2 /* Hyp. Translation Table Base
Register */
+#define HTCR p15,4,c2,c0,2 /* Hyp. Translation Control Register */
+#define VTCR p15,4,c2,c1,2 /* Virtualization Translation Control
Register */
+#define VTTBR p15,6,c2 /* Virtualization Translation Table
Base Register */
+
+/* CP15 CR3: Domain Access Control Register */
+
+/* CP15 CR4: */
+
+/* CP15 CR5: Fault Status Registers */
+#define DFSR p15,0,c5,c0,0 /* Data Fault Status Register */
+#define IFSR p15,0,c5,c0,1 /* Instruction Fault Status Register */
+#define HSR p15,4,c5,c2,0 /* Hyp. Syndrome Register */
+
+/* CP15 CR6: Fault Address Registers */
+#define DFAR p15,0,c6,c0,0 /* Data Fault Address Register */
+#define IFAR p15,0,c6,c0,2 /* Instruction Fault Address Register
*/
+#define HDFAR p15,4,c6,c0,0 /* Hyp. Data Fault Address Register */
+#define HIFAR p15,4,c6,c0,2 /* Hyp. Instruction Fault Address
Register */
+#define HPFAR p15,4,c6,c0,4 /* Hyp. IPA Fault Address Register */
+
+/* CP15 CR7: Cache and address translation operations */
+#define PAR p15,0,c7 /* Physical Address Register */
+#define ICIALLUIS p15,0,c7,c1,0 /* Invalidate all instruction caches
to PoU inner shareable */
+#define BPIALLIS p15,0,c7,c1,6 /* Invalidate entire branch predictor
array inner shareable */
+#define ICIALLU p15,0,c7,c5,0 /* Invalidate all instruction caches
to PoU */
+#define BPIALL p15,0,c7,c5,6 /* Invalidate entire branch predictor
array */
+#define ATS1CPR p15,0,c7,c8,0 /* Address Translation Stage 1.
Non-Secure Kernel Read */
+#define ATS1CPW p15,0,c7,c8,1 /* Address Translation Stage 1.
Non-Secure Kernel Write */
+#define ATS1CUR p15,0,c7,c8,2 /* Address Translation Stage 1.
Non-Secure User Read */
+#define ATS1CUW p15,0,c7,c8,3 /* Address Translation Stage 1.
Non-Secure User Write */
+#define ATS12NSOPR p15,0,c7,c8,4 /* Address Translation Stage 1+2
Non-Secure Kernel Read */
+#define ATS12NSOPW p15,0,c7,c8,5 /* Address Translation Stage 1+2
Non-Secure Kernel Write */
+#define ATS12NSOUR p15,0,c7,c8,6 /* Address Translation Stage 1+2
Non-Secure User Read */
+#define ATS12NSOUW p15,0,c7,c8,7 /* Address Translation Stage 1+2
Non-Secure User Write */
+#define DCCMVAC p15,0,c7,c10,1 /* Clean data or unified cache line by
MVA to PoC */
+#define DCCISW p15,0,c7,c14,2 /* Clean and invalidate data cache
line by set/way */
+#define ATS1HR p15,4,c7,c8,0 /* Address Translation Stage 1 Hyp.
Read */
+#define ATS1HW p15,4,c7,c8,1 /* Address Translation Stage 1 Hyp.
Write */
+
+/* CP15 CR8: TLB maintenance operations */
+#define TLBIALLIS p15,0,c8,c3,0 /* Invalidate entire TLB innrer
shareable */
+#define TLBIMVAIS p15,0,c8,c3,1 /* Invalidate unified TLB entry by MVA
inner shareable */
+#define TLBIASIDIS p15,0,c8,c3,2 /* Invalidate unified TLB by ASID
match inner shareable */
+#define TLBIMVAAIS p15,0,c8,c3,3 /* Invalidate unified TLB entry by MVA
all ASID inner shareable */
+#define DTLBIALL p15,0,c8,c6,0 /* Invalidate data TLB */
+#define DTLBIMVA p15,0,c8,c6,1 /* Invalidate data TLB entry by MVA */
+#define DTLBIASID p15,0,c8,c6,2 /* Invalidate data TLB by ASID match */
+#define TLBILLHIS p15,4,c8,c3,0 /* Invalidate Entire Hyp. Unified TLB
inner shareable */
+#define TLBIMVAHIS p15,4,c8,c3,1 /* Invalidate Unified Hyp. TLB by MVA
inner shareable */
+#define TLBIALLNSNHIS p15,4,c8,c7,4 /* Invalidate Entire Non-Secure
Non-Hyp. Unified TLB inner shareable */
+#define TLBIALLH p15,4,c8,c7,0 /* Invalidate Entire Hyp. Unified TLB
*/
+#define TLBIMVAH p15,4,c8,c7,1 /* Invalidate Unified Hyp. TLB by MVA
*/
+#define TLBIALLNSNH p15,4,c8,c7,4 /* Invalidate Entire Non-Secure
Non-Hyp. Unified TLB */
+
+/* CP15 CR9: */
+
+/* CP15 CR10: */
+#define MAIR0 p15,0,c10,c2,0 /* Memory Attribute Indirection
Register 0 */
+#define MAIR1 p15,0,c10,c2,1 /* Memory Attribute Indirection
Register 1 */
+#define HMAIR0 p15,4,c10,c2,0 /* Hyp. Memory Attribute Indirection
Register 0 */
+#define HMAIR1 p15,4,c10,c2,1 /* Hyp. Memory Attribute Indirection
Register 1 */
+
+/* CP15 CR11: DMA Operations for TCM Access */
+
+/* CP15 CR12: */
+#define HVBAR p15,4,c12,c0,0 /* Hyp. Vector Base Address Register */
+
+/* CP15 CR13: */
+#define FCSEIDR p15,0,c13,c0,0 /* FCSE Process ID Register */
+#define CONTEXTIDR p15,0,c13,c0,1 /* Context ID Register */
+
+/* CP15 CR14: */
+#define CNTPCT p15,0,c14 /* Time counter value */
+#define CNTFRQ p15,0,c14,c0,0 /* Time counter frequency */
+#define CNTKCTL p15,0,c14,c1,0 /* Time counter kernel control */
+#define CNTP_TVAL p15,0,c14,c2,0 /* Physical Timer value */
+#define CNTP_CTL p15,0,c14,c2,1 /* Physical Timer control register */
+#define CNTVCT p15,1,c14 /* Time counter value + offset */
+#define CNTP_CVAL p15,2,c14 /* Physical Timer comparator */
+#define CNTVOFF p15,4,c14 /* Time counter offset */
+#define CNTHCTL p15,4,c14,c1,0 /* Time counter hyp. control */
+#define CNTHP_TVAL p15,4,c14,c2,0 /* Hyp. Timer value */
+#define CNTHP_CTL p15,4,c14,c2,1 /* Hyp. Timer control register */
+#define CNTHP_CVAL p15,6,c14 /* Hyp. Timer comparator */
+
+/* CP15 CR15: Implementation Defined Registers */
+
+#endif
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/current.h b/xen/include/asm-arm/current.h
new file mode 100644
index 0000000..826efa5
--- /dev/null
+++ b/xen/include/asm-arm/current.h
@@ -0,0 +1,60 @@
+#ifndef __ARM_CURRENT_H__
+#define __ARM_CURRENT_H__
+
+#include <xen/config.h>
+#include <xen/percpu.h>
+#include <public/xen.h>
+
+#ifndef __ASSEMBLY__
+
+struct vcpu;
+
+struct cpu_info {
+ struct cpu_user_regs guest_cpu_user_regs;
+ unsigned long elr;
+ unsigned int processor_id;
+ struct vcpu *current_vcpu;
+ unsigned long per_cpu_offset;
+};
+
+static inline struct cpu_info *get_cpu_info(void)
+{
+ register unsigned long sp asm ("sp");
+ return (struct cpu_info *)((sp & ~(STACK_SIZE - 1)) + STACK_SIZE -
sizeof(struct cpu_info));
+}
+
+#define get_current() (get_cpu_info()->current_vcpu)
+#define set_current(vcpu) (get_cpu_info()->current_vcpu = (vcpu))
+#define current (get_current())
+
+#define get_processor_id() (get_cpu_info()->processor_id)
+#define set_processor_id(id) do { \
+ struct cpu_info *ci__ = get_cpu_info(); \
+ ci__->per_cpu_offset = __per_cpu_offset[ci__->processor_id = (id)]; \
+} while (0)
+
+#define guest_cpu_user_regs() (&get_cpu_info()->guest_cpu_user_regs)
+
+#define reset_stack_and_jump(__fn) \
+ __asm__ __volatile__ ( \
+ "mov sp,%0; b "STR(__fn) \
+ : : "r" (guest_cpu_user_regs()) : "memory" )
+#endif
+
+
+/*
+ * Which VCPU's state is currently running on each CPU?
+ * This is not necesasrily the same as 'current' as a CPU may be
+ * executing a lazy state switch.
+ */
+DECLARE_PER_CPU(struct vcpu *, curr_vcpu);
+
+#endif /* __ARM_CURRENT_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/debugger.h b/xen/include/asm-arm/debugger.h
new file mode 100644
index 0000000..452613a
--- /dev/null
+++ b/xen/include/asm-arm/debugger.h
@@ -0,0 +1,15 @@
+#ifndef __ARM_DEBUGGER_H__
+#define __ARM_DEBUGGER_H__
+
+#define debugger_trap_fatal(v, r) ((void) 0)
+#define debugger_trap_immediate() ((void) 0)
+
+#endif /* __ARM_DEBUGGER_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/delay.h b/xen/include/asm-arm/delay.h
new file mode 100644
index 0000000..6250774
--- /dev/null
+++ b/xen/include/asm-arm/delay.h
@@ -0,0 +1,15 @@
+#ifndef _ARM_DELAY_H
+#define _ARM_DELAY_H
+
+extern void __udelay(unsigned long usecs);
+#define udelay(n) __udelay(n)
+
+#endif /* defined(_ARM_DELAY_H) */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/desc.h b/xen/include/asm-arm/desc.h
new file mode 100644
index 0000000..3989e8a
--- /dev/null
+++ b/xen/include/asm-arm/desc.h
@@ -0,0 +1,12 @@
+#ifndef __ARCH_DESC_H
+#define __ARCH_DESC_H
+
+#endif /* __ARCH_DESC_H */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/div64.h b/xen/include/asm-arm/div64.h
new file mode 100644
index 0000000..7b00808
--- /dev/null
+++ b/xen/include/asm-arm/div64.h
@@ -0,0 +1,235 @@
+/* Taken from Linux arch/arm */
+#ifndef __ASM_ARM_DIV64
+#define __ASM_ARM_DIV64
+
+#include <asm/system.h>
+#include <xen/types.h>
+
+/*
+ * The semantics of do_div() are:
+ *
+ * uint32_t do_div(uint64_t *n, uint32_t base)
+ * {
+ * uint32_t remainder = *n % base;
+ * *n = *n / base;
+ * return remainder;
+ * }
+ *
+ * In other words, a 64-bit dividend with a 32-bit divisor producing
+ * a 64-bit result and a 32-bit remainder. To accomplish this optimally
+ * we call a special __do_div64 helper with completely non standard
+ * calling convention for arguments and results (beware).
+ */
+
+#ifdef __ARMEB__
+#define __xh "r0"
+#define __xl "r1"
+#else
+#define __xl "r0"
+#define __xh "r1"
+#endif
+
+#define __do_div_asm(n, base) \
+({ \
+ register unsigned int __base asm("r4") = base; \
+ register unsigned long long __n asm("r0") = n; \
+ register unsigned long long __res asm("r2"); \
+ register unsigned int __rem asm(__xh); \
+ asm( __asmeq("%0", __xh) \
+ __asmeq("%1", "r2") \
+ __asmeq("%2", "r0") \
+ __asmeq("%3", "r4") \
+ "bl __do_div64" \
+ : "=r" (__rem), "=r" (__res) \
+ : "r" (__n), "r" (__base) \
+ : "ip", "lr", "cc"); \
+ n = __res; \
+ __rem; \
+})
+
+#if __GNUC__ < 4
+
+/*
+ * gcc versions earlier than 4.0 are simply too problematic for the
+ * optimized implementation below. First there is gcc PR 15089 that
+ * tend to trig on more complex constructs, spurious .global __udivsi3
+ * are inserted even if none of those symbols are referenced in the
+ * generated code, and those gcc versions are not able to do constant
+ * propagation on long long values anyway.
+ */
+#define do_div(n, base) __do_div_asm(n, base)
+
+#elif __GNUC__ >= 4
+
+#include <asm/bug.h>
+
+/*
+ * If the divisor happens to be constant, we determine the appropriate
+ * inverse at compile time to turn the division into a few inline
+ * multiplications instead which is much faster. And yet only if compiling
+ * for ARMv4 or higher (we need umull/umlal) and if the gcc version is
+ * sufficiently recent to perform proper long long constant propagation.
+ * (It is unfortunate that gcc doesn't perform all this internally.)
+ */
+#define do_div(n, base)
\
+({ \
+ unsigned int __r, __b = (base); \
+ if (!__builtin_constant_p(__b) || __b == 0) { \
+ /* non-constant divisor (or zero): slow path */ \
+ __r = __do_div_asm(n, __b); \
+ } else if ((__b & (__b - 1)) == 0) { \
+ /* Trivial: __b is constant and a power of 2 */ \
+ /* gcc does the right thing with this code. */ \
+ __r = n; \
+ __r &= (__b - 1); \
+ n /= __b; \
+ } else { \
+ /* Multiply by inverse of __b: n/b = n*(p/b)/p */ \
+ /* We rely on the fact that most of this code gets */ \
+ /* optimized away at compile time due to constant */ \
+ /* propagation and only a couple inline assembly */ \
+ /* instructions should remain. Better avoid any */ \
+ /* code construct that might prevent that. */ \
+ unsigned long long __res, __x, __t, __m, __n = n; \
+ unsigned int __c, __p, __z = 0; \
+ /* preserve low part of n for reminder computation */ \
+ __r = __n; \
+ /* determine number of bits to represent __b */ \
+ __p = 1 << __div64_fls(__b); \
+ /* compute __m = ((__p << 64) + __b - 1) / __b */ \
+ __m = (~0ULL / __b) * __p; \
+ __m += (((~0ULL % __b + 1) * __p) + __b - 1) / __b; \
+ /* compute __res = __m*(~0ULL/__b*__b-1)/(__p << 64) */ \
+ __x = ~0ULL / __b * __b - 1; \
+ __res = (__m & 0xffffffff) * (__x & 0xffffffff); \
+ __res >>= 32; \
+ __res += (__m & 0xffffffff) * (__x >> 32); \
+ __t = __res; \
+ __res += (__x & 0xffffffff) * (__m >> 32); \
+ __t = (__res < __t) ? (1ULL << 32) : 0; \
+ __res = (__res >> 32) + __t; \
+ __res += (__m >> 32) * (__x >> 32); \
+ __res /= __p; \
+ /* Now sanitize and optimize what we've got. */ \
+ if (~0ULL % (__b / (__b & -__b)) == 0) { \
+ /* those cases can be simplified with: */ \
+ __n /= (__b & -__b); \
+ __m = ~0ULL / (__b / (__b & -__b)); \
+ __p = 1; \
+ __c = 1; \
+ } else if (__res != __x / __b) { \
+ /* We can't get away without a correction */ \
+ /* to compensate for bit truncation errors. */ \
+ /* To avoid it we'd need an additional bit */ \
+ /* to represent __m which would overflow it. */ \
+ /* Instead we do m=p/b and n/b=(n*m+m)/p. */ \
+ __c = 1; \
+ /* Compute __m = (__p << 64) / __b */ \
+ __m = (~0ULL / __b) * __p; \
+ __m += ((~0ULL % __b + 1) * __p) / __b; \
+ } else { \
+ /* Reduce __m/__p, and try to clear bit 31 */ \
+ /* of __m when possible otherwise that'll */ \
+ /* need extra overflow handling later. */ \
+ unsigned int __bits = -(__m & -__m); \
+ __bits |= __m >> 32; \
+ __bits = (~__bits) << 1; \
+ /* If __bits == 0 then setting bit 31 is */ \
+ /* unavoidable. Simply apply the maximum */ \
+ /* possible reduction in that case. */ \
+ /* Otherwise the MSB of __bits indicates the */ \
+ /* best reduction we should apply. */ \
+ if (!__bits) { \
+ __p /= (__m & -__m); \
+ __m /= (__m & -__m); \
+ } else { \
+ __p >>= __div64_fls(__bits); \
+ __m >>= __div64_fls(__bits); \
+ } \
+ /* No correction needed. */ \
+ __c = 0; \
+ } \
+ /* Now we have a combination of 2 conditions: */ \
+ /* 1) whether or not we need a correction (__c), and */ \
+ /* 2) whether or not there might be an overflow in */ \
+ /* the cross product (__m & ((1<<63) | (1<<31))) */ \
+ /* Select the best insn combination to perform the */ \
+ /* actual __m * __n / (__p << 64) operation. */ \
+ if (!__c) { \
+ asm ( "umull %Q0, %R0, %1, %Q2\n\t" \
+ "mov %Q0, #0" \
+ : "=&r" (__res) \
+ : "r" (__m), "r" (__n) \
+ : "cc" ); \
+ } else if (!(__m & ((1ULL << 63) | (1ULL << 31)))) { \
+ __res = __m; \
+ asm ( "umlal %Q0, %R0, %Q1, %Q2\n\t" \
+ "mov %Q0, #0" \
+ : "+&r" (__res) \
+ : "r" (__m), "r" (__n) \
+ : "cc" ); \
+ } else { \
+ asm ( "umull %Q0, %R0, %Q1, %Q2\n\t" \
+ "cmn %Q0, %Q1\n\t" \
+ "adcs %R0, %R0, %R1\n\t" \
+ "adc %Q0, %3, #0" \
+ : "=&r" (__res) \
+ : "r" (__m), "r" (__n), "r" (__z) \
+ : "cc" ); \
+ } \
+ if (!(__m & ((1ULL << 63) | (1ULL << 31)))) { \
+ asm ( "umlal %R0, %Q0, %R1, %Q2\n\t" \
+ "umlal %R0, %Q0, %Q1, %R2\n\t" \
+ "mov %R0, #0\n\t" \
+ "umlal %Q0, %R0, %R1, %R2" \
+ : "+&r" (__res) \
+ : "r" (__m), "r" (__n) \
+ : "cc" ); \
+ } else { \
+ asm ( "umlal %R0, %Q0, %R2, %Q3\n\t" \
+ "umlal %R0, %1, %Q2, %R3\n\t" \
+ "mov %R0, #0\n\t" \
+ "adds %Q0, %1, %Q0\n\t" \
+ "adc %R0, %R0, #0\n\t" \
+ "umlal %Q0, %R0, %R2, %R3" \
+ : "+&r" (__res), "+&r" (__z) \
+ : "r" (__m), "r" (__n) \
+ : "cc" ); \
+ } \
+ __res /= __p; \
+ /* The reminder can be computed with 32-bit regs */ \
+ /* only, and gcc is good at that. */ \
+ { \
+ unsigned int __res0 = __res; \
+ unsigned int __b0 = __b; \
+ __r -= __res0 * __b0; \
+ } \
+ /* BUG_ON(__r >= __b || __res * __b + __r != n); */ \
+ n = __res; \
+ } \
+ __r; \
+})
+
+/* our own fls implementation to make sure constant propagation is fine */
+#define __div64_fls(bits) \
+({ \
+ unsigned int __left = (bits), __nr = 0; \
+ if (__left & 0xffff0000) __nr += 16, __left >>= 16; \
+ if (__left & 0x0000ff00) __nr += 8, __left >>= 8; \
+ if (__left & 0x000000f0) __nr += 4, __left >>= 4; \
+ if (__left & 0x0000000c) __nr += 2, __left >>= 2; \
+ if (__left & 0x00000002) __nr += 1; \
+ __nr; \
+})
+
+#endif
+
+#endif
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/elf.h b/xen/include/asm-arm/elf.h
new file mode 100644
index 0000000..12d487c
--- /dev/null
+++ b/xen/include/asm-arm/elf.h
@@ -0,0 +1,33 @@
+#ifndef __ARM_ELF_H__
+#define __ARM_ELF_H__
+
+typedef struct {
+ unsigned long r0;
+ unsigned long r1;
+ unsigned long r2;
+ unsigned long r3;
+ unsigned long r4;
+ unsigned long r5;
+ unsigned long r6;
+ unsigned long r7;
+ unsigned long r8;
+ unsigned long r9;
+ unsigned long r10;
+ unsigned long r11;
+ unsigned long r12;
+ unsigned long sp;
+ unsigned long lr;
+ unsigned long pc;
+} ELF_Gregset;
+
+#endif /* __ARM_ELF_H__ */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/event.h b/xen/include/asm-arm/event.h
new file mode 100644
index 0000000..6b2fb7c
--- /dev/null
+++ b/xen/include/asm-arm/event.h
@@ -0,0 +1,41 @@
+#ifndef __ASM_EVENT_H__
+#define __ASM_EVENT_H__
+
+void vcpu_kick(struct vcpu *v);
+void vcpu_mark_events_pending(struct vcpu *v);
+
+static inline int local_events_need_delivery(void)
+{
+ /* TODO
+ * return (vcpu_info(v, evtchn_upcall_pending) &&
+ !vcpu_info(v, evtchn_upcall_mask)); */
+ return 0;
+}
+
+int local_event_delivery_is_enabled(void);
+
+static inline void local_event_delivery_disable(void)
+{
+ /* TODO current->vcpu_info->evtchn_upcall_mask = 1; */
+}
+
+static inline void local_event_delivery_enable(void)
+{
+ /* TODO current->vcpu_info->evtchn_upcall_mask = 0; */
+}
+
+/* No arch specific virq definition now. Default to global. */
+static inline int arch_virq_is_global(int virq)
+{
+ return 1;
+}
+
+#endif
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/flushtlb.h b/xen/include/asm-arm/flushtlb.h
new file mode 100644
index 0000000..c8486fc
--- /dev/null
+++ b/xen/include/asm-arm/flushtlb.h
@@ -0,0 +1,31 @@
+#ifndef __FLUSHTLB_H__
+#define __FLUSHTLB_H__
+
+#include <xen/cpumask.h>
+
+/*
+ * Filter the given set of CPUs, removing those that definitely flushed their
+ * TLB since @page_timestamp.
+ */
+/* XXX lazy implementation just doesn't clear anything.... */
+#define tlbflush_filter(mask, page_timestamp) \
+do { \
+} while ( 0 )
+
+#define tlbflush_current_time() (0)
+
+/* Flush local TLBs */
+void flush_tlb_local(void);
+
+/* Flush specified CPUs' TLBs */
+void flush_tlb_mask(const cpumask_t *mask);
+
+#endif /* __FLUSHTLB_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/grant_table.h
b/xen/include/asm-arm/grant_table.h
new file mode 100644
index 0000000..e49aa8d
--- /dev/null
+++ b/xen/include/asm-arm/grant_table.h
@@ -0,0 +1,35 @@
+#ifndef __ASM_GRANT_TABLE_H__
+#define __ASM_GRANT_TABLE_H__
+
+#include <xen/grant_table.h>
+
+#define INVALID_GFN (-1UL)
+#define INITIAL_NR_GRANT_FRAMES 1
+
+void gnttab_clear_flag(unsigned long nr, uint16_t *addr);
+int create_grant_host_mapping(unsigned long gpaddr,
+ unsigned long mfn, unsigned int flags, unsigned int
+ cache_flags);
+#define gnttab_host_mapping_get_page_type(op, d, rd) (0)
+int replace_grant_host_mapping(unsigned long gpaddr, unsigned long mfn,
+ unsigned long new_gpaddr, unsigned int flags);
+void gnttab_mark_dirty(struct domain *d, unsigned long l);
+#define gnttab_create_status_page(d, t, i) do {} while (0)
+#define gnttab_create_shared_page(d, t, i) do {} while (0)
+#define gnttab_shared_gmfn(d, t, i) (0)
+#define gnttab_status_gmfn(d, t, i) (0)
+#define gnttab_release_host_mappings(domain) 1
+static inline int replace_grant_supported(void)
+{
+ return 1;
+}
+
+#endif /* __ASM_GRANT_TABLE_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/hardirq.h b/xen/include/asm-arm/hardirq.h
new file mode 100644
index 0000000..9c031a8
--- /dev/null
+++ b/xen/include/asm-arm/hardirq.h
@@ -0,0 +1,28 @@
+#ifndef __ASM_HARDIRQ_H
+#define __ASM_HARDIRQ_H
+
+#include <xen/config.h>
+#include <xen/cache.h>
+#include <xen/smp.h>
+
+typedef struct {
+ unsigned long __softirq_pending;
+ unsigned int __local_irq_count;
+} __cacheline_aligned irq_cpustat_t;
+
+#include <xen/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
+
+#define in_irq() (local_irq_count(smp_processor_id()) != 0)
+
+#define irq_enter() (local_irq_count(smp_processor_id())++)
+#define irq_exit() (local_irq_count(smp_processor_id())--)
+
+#endif /* __ASM_HARDIRQ_H */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/hypercall.h b/xen/include/asm-arm/hypercall.h
new file mode 100644
index 0000000..90a87ef
--- /dev/null
+++ b/xen/include/asm-arm/hypercall.h
@@ -0,0 +1,24 @@
+#ifndef __ASM_ARM_HYPERCALL_H__
+#define __ASM_ARM_HYPERCALL_H__
+
+#include <public/domctl.h> /* for arch_do_domctl */
+
+struct vcpu;
+extern long
+arch_do_vcpu_op(
+ int cmd, struct vcpu *v, XEN_GUEST_HANDLE(void) arg);
+
+extern long
+arch_do_sysctl(
+ struct xen_sysctl *op,
+ XEN_GUEST_HANDLE(xen_sysctl_t) u_sysctl);
+
+#endif /* __ASM_ARM_HYPERCALL_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/init.h b/xen/include/asm-arm/init.h
new file mode 100644
index 0000000..5f44929
--- /dev/null
+++ b/xen/include/asm-arm/init.h
@@ -0,0 +1,12 @@
+#ifndef _XEN_ASM_INIT_H
+#define _XEN_ASM_INIT_H
+
+#endif /* _XEN_ASM_INIT_H */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/io.h b/xen/include/asm-arm/io.h
new file mode 100644
index 0000000..1babbab
--- /dev/null
+++ b/xen/include/asm-arm/io.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_IO_H
+#define _ASM_IO_H
+
+#endif
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/iocap.h b/xen/include/asm-arm/iocap.h
new file mode 100644
index 0000000..f647f30
--- /dev/null
+++ b/xen/include/asm-arm/iocap.h
@@ -0,0 +1,20 @@
+#ifndef __X86_IOCAP_H__
+#define __X86_IOCAP_H__
+
+#define cache_flush_permitted(d) \
+ (!rangeset_is_empty((d)->iomem_caps))
+
+#define multipage_allocation_permitted(d, order) \
+ (((order) <= 9) || /* allow 2MB superpages */ \
+ !rangeset_is_empty((d)->iomem_caps))
+
+#endif
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/multicall.h b/xen/include/asm-arm/multicall.h
new file mode 100644
index 0000000..c800940
--- /dev/null
+++ b/xen/include/asm-arm/multicall.h
@@ -0,0 +1,23 @@
+#ifndef __ASM_ARM_MULTICALL_H__
+#define __ASM_ARM_MULTICALL_H__
+
+#define do_multicall_call(_call) \
+ do { \
+ __asm__ __volatile__ ( \
+ ".word 0xe7f000f0@; do_multicall_call\n" \
+ " mov r0,#0; @ do_multicall_call\n" \
+ " str r0, [r0];\n" \
+ : \
+ : \
+ : ); \
+ } while ( 0 )
+
+#endif /* __ASM_ARM_MULTICALL_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/nmi.h b/xen/include/asm-arm/nmi.h
new file mode 100644
index 0000000..e0f19f9
--- /dev/null
+++ b/xen/include/asm-arm/nmi.h
@@ -0,0 +1,15 @@
+#ifndef ASM_NMI_H
+#define ASM_NMI_H
+
+#define register_guest_nmi_callback(a) (-ENOSYS)
+#define unregister_guest_nmi_callback() (-ENOSYS)
+
+#endif /* ASM_NMI_H */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/numa.h b/xen/include/asm-arm/numa.h
new file mode 100644
index 0000000..cffee5c
--- /dev/null
+++ b/xen/include/asm-arm/numa.h
@@ -0,0 +1,21 @@
+#ifndef __ARCH_ARM_NUMA_H
+#define __ARCH_ARM_NUMA_H
+
+/* Fake one node for now... */
+#define cpu_to_node(cpu) 0
+#define node_to_cpumask(node) (cpu_online_map)
+
+static inline __attribute__((pure)) int phys_to_nid(paddr_t addr)
+{
+ return 0;
+}
+
+#endif /* __ARCH_ARM_NUMA_H */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/paging.h b/xen/include/asm-arm/paging.h
new file mode 100644
index 0000000..4dc340f
--- /dev/null
+++ b/xen/include/asm-arm/paging.h
@@ -0,0 +1,13 @@
+#ifndef _XEN_PAGING_H
+#define _XEN_PAGING_H
+
+#endif /* XEN_PAGING_H */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/pci.h b/xen/include/asm-arm/pci.h
new file mode 100644
index 0000000..de13359
--- /dev/null
+++ b/xen/include/asm-arm/pci.h
@@ -0,0 +1,7 @@
+#ifndef __X86_PCI_H__
+#define __X86_PCI_H__
+
+struct arch_pci_dev {
+};
+
+#endif /* __X86_PCI_H__ */
diff --git a/xen/include/asm-arm/percpu.h b/xen/include/asm-arm/percpu.h
new file mode 100644
index 0000000..9d369eb
--- /dev/null
+++ b/xen/include/asm-arm/percpu.h
@@ -0,0 +1,28 @@
+#ifndef __ARM_PERCPU_H__
+#define __ARM_PERCPU_H__
+
+#ifndef __ASSEMBLY__
+extern char __per_cpu_start[], __per_cpu_data_end[];
+extern unsigned long __per_cpu_offset[NR_CPUS];
+void percpu_init_areas(void);
+#endif
+
+/* Separate out the type, so (int[3], foo) works. */
+#define __DEFINE_PER_CPU(type, name, suffix) \
+ __attribute__((__section__(".bss.percpu" #suffix))) \
+ __typeof__(type) per_cpu_##name
+
+#define per_cpu(var, cpu) ((&per_cpu__##var)[cpu?0:0])
+#define __get_cpu_var(var) per_cpu__##var
+
+#define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name
+
+#endif /* __ARM_PERCPU_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/processor.h b/xen/include/asm-arm/processor.h
new file mode 100644
index 0000000..1f85d31
--- /dev/null
+++ b/xen/include/asm-arm/processor.h
@@ -0,0 +1,269 @@
+#ifndef __ASM_ARM_PROCESSOR_H
+#define __ASM_ARM_PROCESSOR_H
+
+#include <asm/cpregs.h>
+
+/* PSR bits (CPSR, SPSR)*/
+
+/* 0-4: Mode */
+#define PSR_MODE_MASK 0x1f
+#define PSR_MODE_USR 0x10
+#define PSR_MODE_FIQ 0x11
+#define PSR_MODE_IRQ 0x12
+#define PSR_MODE_SVC 0x13
+#define PSR_MODE_MON 0x16
+#define PSR_MODE_ABT 0x17
+#define PSR_MODE_HYP 0x1a
+#define PSR_MODE_UND 0x1b
+#define PSR_MODE_SYS 0x1f
+
+#define PSR_THUMB (1<<5) /* Thumb Mode enable */
+#define PSR_FIQ_MASK (1<<6) /* Fast Interrupt mask */
+#define PSR_IRQ_MASK (1<<7) /* Interrupt mask */
+#define PSR_ABT_MASK (1<<8) /* Asynchronous Abort mask */
+#define PSR_BIG_ENDIAN (1<<9) /* Big Endian Mode */
+#define PSR_JAZELLE (1<<24) /* Jazelle Mode */
+
+/* TTBCR Translation Table Base Control Register */
+#define TTBCR_N_MASK 0x07
+#define TTBCR_N_16KB 0x00
+#define TTBCR_N_8KB 0x01
+#define TTBCR_N_4KB 0x02
+#define TTBCR_N_2KB 0x03
+#define TTBCR_N_1KB 0x04
+
+/* SCTLR System Control Register. */
+/* HSCTLR is a subset of this. */
+#define SCTLR_TE (1<<30)
+#define SCTLR_AFE (1<<29)
+#define SCTLR_TRE (1<<28)
+#define SCTLR_NMFI (1<<27)
+#define SCTLR_EE (1<<25)
+#define SCTLR_VE (1<<24)
+#define SCTLR_U (1<<22)
+#define SCTLR_FI (1<<21)
+#define SCTLR_WXN (1<<19)
+#define SCTLR_HA (1<<17)
+#define SCTLR_RR (1<<14)
+#define SCTLR_V (1<<13)
+#define SCTLR_I (1<<12)
+#define SCTLR_Z (1<<11)
+#define SCTLR_SW (1<<10)
+#define SCTLR_B (1<<7)
+#define SCTLR_C (1<<2)
+#define SCTLR_A (1<<1)
+#define SCTLR_M (1<<0)
+
+#define SCTLR_BASE 0x00c50078
+#define HSCTLR_BASE 0x30c51878
+
+/* HCR Hyp Configuration Register */
+#define HCR_TGE (1<<27)
+#define HCR_TVM (1<<26)
+#define HCR_TTLB (1<<25)
+#define HCR_TPU (1<<24)
+#define HCR_TPC (1<<23)
+#define HCR_TSW (1<<22)
+#define HCR_TAC (1<<21)
+#define HCR_TIDCP (1<<20)
+#define HCR_TSC (1<<19)
+#define HCR_TID3 (1<<18)
+#define HCR_TID2 (1<<17)
+#define HCR_TID1 (1<<16)
+#define HCR_TID0 (1<<15)
+#define HCR_TWE (1<<14)
+#define HCR_TWI (1<<13)
+#define HCR_DC (1<<12)
+#define HCR_BSU_MASK (3<<10)
+#define HCR_FB (1<<9)
+#define HCR_VA (1<<8)
+#define HCR_VI (1<<7)
+#define HCR_VF (1<<6)
+#define HCR_AMO (1<<5)
+#define HCR_IMO (1<<4)
+#define HCR_FMO (1<<3)
+#define HCR_PTW (1<<2)
+#define HCR_SWIO (1<<1)
+#define HCR_VM (1<<0)
+
+#define HSR_EC_WFI_WFE 0x01
+#define HSR_EC_CP15_32 0x03
+#define HSR_EC_CP15_64 0x04
+#define HSR_EC_CP14_32 0x05
+#define HSR_EC_CP14_DBG 0x06
+#define HSR_EC_CP 0x07
+#define HSR_EC_CP10 0x08
+#define HSR_EC_JAZELLE 0x09
+#define HSR_EC_BXJ 0x0a
+#define HSR_EC_CP14_64 0x0c
+#define HSR_EC_SVC 0x11
+#define HSR_EC_HVC 0x12
+#define HSR_EC_INSTR_ABORT_GUEST 0x20
+#define HSR_EC_INSTR_ABORT_HYP 0x21
+#define HSR_EC_DATA_ABORT_GUEST 0x24
+#define HSR_EC_DATA_ABORT_HYP 0x25
+
+#ifndef __ASSEMBLY__
+union hsr {
+ uint32_t bits;
+ struct {
+ unsigned long iss:25; /* Instruction Specific Syndrome */
+ unsigned long len:1; /* Instruction length */
+ unsigned long ec:6; /* Exception Class */
+ };
+
+ struct hsr_cp32 {
+ unsigned long read:1; /* Direction */
+ unsigned long crm:4; /* CRm */
+ unsigned long reg:4; /* Rt */
+ unsigned long sbzp:1;
+ unsigned long crn:4; /* CRn */
+ unsigned long op1:3; /* Op1 */
+ unsigned long op2:3; /* Op2 */
+ unsigned long cc:4; /* Condition Code */
+ unsigned long ccvalid:1;/* CC Valid */
+ unsigned long len:1; /* Instruction length */
+ unsigned long ec:6; /* Exception Class */
+ } cp32; /* HSR_EC_CP15_32, CP14_32, CP10 */
+
+ struct hsr_cp64 {
+ unsigned long read:1; /* Direction */
+ unsigned long crm:4; /* CRm */
+ unsigned long reg1:4; /* Rt1 */
+ unsigned long sbzp1:1;
+ unsigned long reg2:4; /* Rt2 */
+ unsigned long sbzp2:2;
+ unsigned long op1:4; /* Op1 */
+ unsigned long cc:4; /* Condition Code */
+ unsigned long ccvalid:1;/* CC Valid */
+ unsigned long len:1; /* Instruction length */
+ unsigned long ec:6; /* Exception Class */
+ } cp64; /* HSR_EC_CP15_64, HSR_EC_CP14_64 */
+
+ struct hsr_dabt {
+ unsigned long dfsc:6; /* Data Fault Status Code */
+ unsigned long write:1; /* Write / not Read */
+ unsigned long s1ptw:1; /* */
+ unsigned long cache:1; /* Cache Maintenance */
+ unsigned long eat:1; /* External Abort Type */
+ unsigned long sbzp0:6;
+ unsigned long reg:4; /* Register */
+ unsigned long sbzp1:1;
+ unsigned long sign:1; /* Sign extend */
+ unsigned long size:2; /* Access Size */
+ unsigned long valid:1; /* Syndrome Valid */
+ unsigned long len:1; /* Instruction length */
+ unsigned long ec:6; /* Exception Class */
+ } dabt; /* HSR_EC_DATA_ABORT_* */
+};
+#endif
+
+/* HSR.EC == HSR_CP{15,14,10}_32 */
+#define HSR_CP32_OP2_MASK (0x000e0000)
+#define HSR_CP32_OP2_SHIFT (17)
+#define HSR_CP32_OP1_MASK (0x0001c000)
+#define HSR_CP32_OP1_SHIFT (14)
+#define HSR_CP32_CRN_MASK (0x00003c00)
+#define HSR_CP32_CRN_SHIFT (10)
+#define HSR_CP32_CRM_MASK (0x0000001e)
+#define HSR_CP32_CRM_SHIFT (1)
+#define HSR_CP32_REGS_MASK (HSR_CP32_OP1_MASK|HSR_CP32_OP2_MASK|\
+ HSR_CP32_CRN_MASK|HSR_CP32_CRM_MASK)
+
+/* HSR.EC == HSR_CP{15,14}_64 */
+#define HSR_CP64_OP1_MASK (0x000f0000)
+#define HSR_CP64_OP1_SHIFT (16)
+#define HSR_CP64_CRM_MASK (0x0000001e)
+#define HSR_CP64_CRM_SHIFT (1)
+#define HSR_CP64_REGS_MASK (HSR_CP64_OP1_MASK|HSR_CP64_CRM_MASK)
+
+/* Physical Address Register */
+#define PAR_F (1<<0)
+
+/* .... If F == 1 */
+#define PAR_FSC_SHIFT (1)
+#define PAR_FSC_MASK (0x3f<<PAR_FSC_SHIFT)
+#define PAR_STAGE21 (1<<8) /* Stage 2 Fault During Stage 1 Walk */
+#define PAR_STAGE2 (1<<9) /* Stage 2 Fault */
+
+/* If F == 0 */
+#define PAR_MAIR_SHIFT 56 /* Memory Attributes */
+#define PAR_MAIR_MASK (0xffLL<<PAR_MAIR_SHIFT)
+#define PAR_NS (1<<9) /* Non-Secure */
+#define PAR_SH_SHIFT 7 /* Shareability */
+#define PAR_SH_MASK (3<<PAR_SH_SHIFT)
+
+/* Fault Status Register */
+/*
+ * 543210 BIT
+ * 00XXLL -- XX Fault Level LL
+ * ..01LL -- Translation Fault LL
+ * ..10LL -- Access Fault LL
+ * ..11LL -- Permission Fault LL
+ * 01xxxx -- Abort/Parity
+ * 10xxxx -- Other
+ * 11xxxx -- Implementation Defined
+ */
+#define FSC_TYPE_MASK (0x3<<4)
+#define FSC_TYPE_FAULT (0x00<<4)
+#define FSC_TYPE_ABT (0x01<<4)
+#define FSC_TYPE_OTH (0x02<<4)
+#define FSC_TYPE_IMPL (0x03<<4)
+
+#define FSC_FLT_TRANS (0x04)
+#define FSC_FLT_ACCESS (0x08)
+#define FSC_FLT_PERM (0x0c)
+#define FSC_SEA (0x10) /* Synchronous External Abort */
+#define FSC_SPE (0x18) /* Memory Access Synchronous Parity Error */
+#define FSC_APE (0x11) /* Memory Access Asynchronous Parity Error */
+#define FSC_SEATT (0x14) /* Sync. Ext. Abort Translation Table */
+#define FSC_SPETT (0x1c) /* Sync. Parity. Error Translation Table */
+#define FSC_AF (0x21) /* Alignment Fault */
+#define FSC_DE (0x22) /* Debug Event */
+#define FSC_LKD (0x34) /* Lockdown Abort */
+#define FSC_CPR (0x3a) /* Coprocossor Abort */
+
+#define FSC_LL_MASK (0x03<<0)
+
+/* Time counter hypervisor control register */
+#define CNTHCTL_PA (1u<<0) /* Kernel/user access to physical counter */
+#define CNTHCTL_TA (1u<<1) /* Kernel/user access to CNTP timer */
+
+/* Timer control registers */
+#define CNTx_CTL_ENABLE (1u<<0) /* Enable timer */
+#define CNTx_CTL_MASK (1u<<1) /* Mask IRQ */
+#define CNTx_CTL_PENDING (1u<<2) /* IRQ pending */
+
+/* CPUID bits */
+#define ID_PFR1_GT_MASK 0x000F0000 /* Generic Timer interface support */
+#define ID_PFR1_GT_v1 0x00010000
+
+#define MSR(reg,val) asm volatile ("msr "#reg", %0\n" : : "r" (val))
+#define MRS(val,reg) asm volatile ("mrs %0,"#reg"\n" : "=r" (v))
+
+#ifndef __ASSEMBLY__
+extern uint32_t hyp_traps_vector[8];
+
+void panic_PAR(uint64_t par, const char *when);
+
+void show_execution_state(struct cpu_user_regs *regs);
+void show_registers(struct cpu_user_regs *regs);
+//#define dump_execution_state() run_in_exception_handler(show_execution_state)
+#define dump_execution_state() asm volatile (".word 0xe7f000f0\n"); /* XXX */
+
+#define cpu_relax() barrier() /* Could yield? */
+
+/* All a bit UP for the moment */
+#define cpu_to_core(_cpu) (0)
+#define cpu_to_socket(_cpu) (0)
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_ARM_PROCESSOR_H */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/regs.h b/xen/include/asm-arm/regs.h
new file mode 100644
index 0000000..ee095bf
--- /dev/null
+++ b/xen/include/asm-arm/regs.h
@@ -0,0 +1,43 @@
+#ifndef __ARM_REGS_H__
+#define __ARM_REGS_H__
+
+#include <xen/types.h>
+#include <public/xen.h>
+#include <asm/processor.h>
+
+#define psr_mode(psr,m) (((psr) & PSR_MODE_MASK) == m)
+
+#define usr_mode(r) psr_mode((r)->cpsr,PSR_MODE_USR)
+#define fiq_mode(r) psr_mode((r)->cpsr,PSR_MODE_FIQ)
+#define irq_mode(r) psr_mode((r)->cpsr,PSR_MODE_IRQ)
+#define svc_mode(r) psr_mode((r)->cpsr,PSR_MODE_SVC)
+#define mon_mode(r) psr_mode((r)->cpsr,PSR_MODE_MON)
+#define abt_mode(r) psr_mode((r)->cpsr,PSR_MODE_ABT)
+#define hyp_mode(r) psr_mode((r)->cpsr,PSR_MODE_HYP)
+#define und_mode(r) psr_mode((r)->cpsr,PSR_MODE_UND)
+#define sys_mode(r) psr_mode((r)->cpsr,PSR_MODE_SYS)
+
+#define guest_mode(r) \
+({ \
+ unsigned long diff = (char *)guest_cpu_user_regs() - (char *)(r); \
+ /* Frame pointer must point into current CPU stack. */ \
+ ASSERT(diff < STACK_SIZE); \
+ /* If not a guest frame, it must be a hypervisor frame. */ \
+ ASSERT((diff == 0) || hyp_mode(r)); \
+ /* Return TRUE if it's a guest frame. */ \
+ (diff == 0); \
+})
+
+#define return_reg(v) ((v)->arch.user_regs.r0)
+
+#define CTXT_SWITCH_STACK_BYTES (sizeof(struct cpu_user_regs))
+
+#endif /* __ARM_REGS_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/setup.h b/xen/include/asm-arm/setup.h
new file mode 100644
index 0000000..c27d438
--- /dev/null
+++ b/xen/include/asm-arm/setup.h
@@ -0,0 +1,16 @@
+#ifndef __ARM_SETUP_H_
+#define __ARM_SETUP_H_
+
+#include <public/version.h>
+
+void arch_get_xen_caps(xen_capabilities_info_t *info);
+
+#endif
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/smp.h b/xen/include/asm-arm/smp.h
new file mode 100644
index 0000000..9cdd87f
--- /dev/null
+++ b/xen/include/asm-arm/smp.h
@@ -0,0 +1,25 @@
+#ifndef __ASM_SMP_H
+#define __ASM_SMP_H
+
+#ifndef __ASSEMBLY__
+#include <xen/config.h>
+#include <xen/cpumask.h>
+#include <asm/current.h>
+#endif
+
+DECLARE_PER_CPU(cpumask_var_t, cpu_sibling_mask);
+DECLARE_PER_CPU(cpumask_var_t, cpu_core_mask);
+
+#define cpu_is_offline(cpu) unlikely(!cpu_online(cpu))
+
+#define raw_smp_processor_id() (get_processor_id())
+
+#endif
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/softirq.h b/xen/include/asm-arm/softirq.h
new file mode 100644
index 0000000..536af38
--- /dev/null
+++ b/xen/include/asm-arm/softirq.h
@@ -0,0 +1,15 @@
+#ifndef __ASM_SOFTIRQ_H__
+#define __ASM_SOFTIRQ_H__
+
+#define VGIC_SOFTIRQ (NR_COMMON_SOFTIRQS + 0)
+#define NR_ARCH_SOFTIRQS 1
+
+#endif /* __ASM_SOFTIRQ_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/spinlock.h b/xen/include/asm-arm/spinlock.h
new file mode 100644
index 0000000..b1825c9
--- /dev/null
+++ b/xen/include/asm-arm/spinlock.h
@@ -0,0 +1,144 @@
+#ifndef __ASM_SPINLOCK_H
+#define __ASM_SPINLOCK_H
+
+#include <xen/config.h>
+#include <xen/lib.h>
+
+static inline void dsb_sev(void)
+{
+ __asm__ __volatile__ (
+ "dsb\n"
+ "sev\n"
+ );
+}
+
+typedef struct {
+ volatile unsigned int lock;
+} raw_spinlock_t;
+
+#define _RAW_SPIN_LOCK_UNLOCKED { 0 }
+
+#define _raw_spin_is_locked(x) ((x)->lock != 0)
+
+static always_inline void _raw_spin_unlock(raw_spinlock_t *lock)
+{
+ ASSERT(_raw_spin_is_locked(lock));
+
+ smp_mb();
+
+ __asm__ __volatile__(
+" str %1, [%0]\n"
+ :
+ : "r" (&lock->lock), "r" (0)
+ : "cc");
+
+ dsb_sev();
+}
+
+static always_inline int _raw_spin_trylock(raw_spinlock_t *lock)
+{
+ unsigned long tmp;
+
+ __asm__ __volatile__(
+" ldrex %0, [%1]\n"
+" teq %0, #0\n"
+" strexeq %0, %2, [%1]"
+ : "=&r" (tmp)
+ : "r" (&lock->lock), "r" (1)
+ : "cc");
+
+ if (tmp == 0) {
+ smp_mb();
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+typedef struct {
+ volatile unsigned int lock;
+} raw_rwlock_t;
+
+#define _RAW_RW_LOCK_UNLOCKED { 0 }
+
+static always_inline int _raw_read_trylock(raw_rwlock_t *rw)
+{
+ unsigned long tmp, tmp2 = 1;
+
+ __asm__ __volatile__(
+"1: ldrex %0, [%2]\n"
+" adds %0, %0, #1\n"
+" strexpl %1, %0, [%2]\n"
+ : "=&r" (tmp), "+r" (tmp2)
+ : "r" (&rw->lock)
+ : "cc");
+
+ smp_mb();
+ return tmp2 == 0;
+}
+
+static always_inline int _raw_write_trylock(raw_rwlock_t *rw)
+{
+ unsigned long tmp;
+
+ __asm__ __volatile__(
+"1: ldrex %0, [%1]\n"
+" teq %0, #0\n"
+" strexeq %0, %2, [%1]"
+ : "=&r" (tmp)
+ : "r" (&rw->lock), "r" (0x80000000)
+ : "cc");
+
+ if (tmp == 0) {
+ smp_mb();
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+static inline void _raw_read_unlock(raw_rwlock_t *rw)
+{
+ unsigned long tmp, tmp2;
+
+ smp_mb();
+
+ __asm__ __volatile__(
+"1: ldrex %0, [%2]\n"
+" sub %0, %0, #1\n"
+" strex %1, %0, [%2]\n"
+" teq %1, #0\n"
+" bne 1b"
+ : "=&r" (tmp), "=&r" (tmp2)
+ : "r" (&rw->lock)
+ : "cc");
+
+ if (tmp == 0)
+ dsb_sev();
+}
+
+static inline void _raw_write_unlock(raw_rwlock_t *rw)
+{
+ smp_mb();
+
+ __asm__ __volatile__(
+ "str %1, [%0]\n"
+ :
+ : "r" (&rw->lock), "r" (0)
+ : "cc");
+
+ dsb_sev();
+}
+
+#define _raw_rw_is_locked(x) ((x)->lock != 0)
+#define _raw_rw_is_write_locked(x) ((x)->lock == 0x80000000)
+
+#endif /* __ASM_SPINLOCK_H */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/string.h b/xen/include/asm-arm/string.h
new file mode 100644
index 0000000..f2d643d
--- /dev/null
+++ b/xen/include/asm-arm/string.h
@@ -0,0 +1,38 @@
+#ifndef __ARM_STRING_H__
+#define __ARM_STRING_H__
+
+#include <xen/config.h>
+
+#define __HAVE_ARCH_MEMCPY
+extern void * memcpy(void *, const void *, __kernel_size_t);
+
+/* Some versions of gcc don't have this builtin. It's non-critical anyway. */
+#define __HAVE_ARCH_MEMMOVE
+extern void *memmove(void *dest, const void *src, size_t n);
+
+#define __HAVE_ARCH_MEMSET
+extern void * memset(void *, int, __kernel_size_t);
+
+extern void __memzero(void *ptr, __kernel_size_t n);
+
+#define memset(p,v,n) \
+ ({ \
+ void *__p = (p); size_t __n = n; \
+ if ((__n) != 0) { \
+ if (__builtin_constant_p((v)) && (v) == 0) \
+ __memzero((__p),(__n)); \
+ else \
+ memset((__p),(v),(__n)); \
+ } \
+ (__p); \
+ })
+
+#endif /* __ARM_STRING_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/system.h b/xen/include/asm-arm/system.h
new file mode 100644
index 0000000..731d89f
--- /dev/null
+++ b/xen/include/asm-arm/system.h
@@ -0,0 +1,202 @@
+/* Portions taken from Linux arch arm */
+#ifndef __ASM_SYSTEM_H
+#define __ASM_SYSTEM_H
+
+#include <xen/lib.h>
+#include <asm/processor.h>
+
+#define nop() \
+ asm volatile ( "nop" )
+
+#define xchg(ptr,x) \
+ ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
+
+#define isb() __asm__ __volatile__ ("isb" : : : "memory")
+#define dsb() __asm__ __volatile__ ("dsb" : : : "memory")
+#define dmb() __asm__ __volatile__ ("dmb" : : : "memory")
+
+#define mb() dsb()
+#define rmb() dsb()
+#define wmb() mb()
+
+#define smp_mb() dmb()
+#define smp_rmb() dmb()
+#define smp_wmb() dmb()
+
+/*
+ * This is used to ensure the compiler did actually allocate the register we
+ * asked it for some inline assembly sequences. Apparently we can't trust
+ * the compiler from one version to another so a bit of paranoia won't hurt.
+ * This string is meant to be concatenated with the inline asm string and
+ * will cause compilation to stop on mismatch.
+ * (for details, see gcc PR 15089)
+ */
+#define __asmeq(x, y) ".ifnc " x "," y " ; .err ; .endif\n\t"
+
+extern void __bad_xchg(volatile void *, int);
+
+static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int
size)
+{
+ unsigned long ret;
+ unsigned int tmp;
+
+ smp_mb();
+
+ switch (size) {
+ case 1:
+ asm volatile("@ __xchg1\n"
+ "1: ldrexb %0, [%3]\n"
+ " strexb %1, %2, [%3]\n"
+ " teq %1, #0\n"
+ " bne 1b"
+ : "=&r" (ret), "=&r" (tmp)
+ : "r" (x), "r" (ptr)
+ : "memory", "cc");
+ break;
+ case 4:
+ asm volatile("@ __xchg4\n"
+ "1: ldrex %0, [%3]\n"
+ " strex %1, %2, [%3]\n"
+ " teq %1, #0\n"
+ " bne 1b"
+ : "=&r" (ret), "=&r" (tmp)
+ : "r" (x), "r" (ptr)
+ : "memory", "cc");
+ break;
+ default:
+ __bad_xchg(ptr, size), ret = 0;
+ break;
+ }
+ smp_mb();
+
+ return ret;
+}
+
+/*
+ * Atomic compare and exchange. Compare OLD with MEM, if identical,
+ * store NEW in MEM. Return the initial value in MEM. Success is
+ * indicated by comparing RETURN with OLD.
+ */
+
+extern void __bad_cmpxchg(volatile void *ptr, int size);
+
+static always_inline unsigned long __cmpxchg(
+ volatile void *ptr, unsigned long old, unsigned long new, int size)
+{
+ unsigned long /*long*/ oldval, res;
+
+ switch (size) {
+ case 1:
+ do {
+ asm volatile("@ __cmpxchg1\n"
+ " ldrexb %1, [%2]\n"
+ " mov %0, #0\n"
+ " teq %1, %3\n"
+ " strexbeq %0, %4, [%2]\n"
+ : "=&r" (res), "=&r" (oldval)
+ : "r" (ptr), "Ir" (old), "r" (new)
+ : "memory", "cc");
+ } while (res);
+ break;
+ case 2:
+ do {
+ asm volatile("@ __cmpxchg2\n"
+ " ldrexh %1, [%2]\n"
+ " mov %0, #0\n"
+ " teq %1, %3\n"
+ " strexheq %0, %4, [%2]\n"
+ : "=&r" (res), "=&r" (oldval)
+ : "r" (ptr), "Ir" (old), "r" (new)
+ : "memory", "cc");
+ } while (res);
+ break;
+ case 4:
+ do {
+ asm volatile("@ __cmpxchg4\n"
+ " ldrex %1, [%2]\n"
+ " mov %0, #0\n"
+ " teq %1, %3\n"
+ " strexeq %0, %4, [%2]\n"
+ : "=&r" (res), "=&r" (oldval)
+ : "r" (ptr), "Ir" (old), "r" (new)
+ : "memory", "cc");
+ } while (res);
+ break;
+#if 0
+ case 8:
+ do {
+ asm volatile("@ __cmpxchg8\n"
+ " ldrexd %1, [%2]\n"
+ " mov %0, #0\n"
+ " teq %1, %3\n"
+ " strexdeq %0, %4, [%2]\n"
+ : "=&r" (res), "=&r" (oldval)
+ : "r" (ptr), "Ir" (old), "r" (new)
+ : "memory", "cc");
+ } while (res);
+ break;
+#endif
+ default:
+ __bad_cmpxchg(ptr, size);
+ oldval = 0;
+ }
+
+ return oldval;
+}
+#define cmpxchg(ptr,o,n) \
+ ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o), \
+ (unsigned long)(n),sizeof(*(ptr))))
+
+#define local_irq_disable() asm volatile ( "cpsid i @ local_irq_disable\n" : :
: "cc" )
+#define local_irq_enable() asm volatile ( "cpsie i @ local_irq_enable\n" : :
: "cc" )
+
+#define local_save_flags(x) \
+({ \
+ BUILD_BUG_ON(sizeof(x) != sizeof(long)); \
+ asm volatile ( "mrs %0, cpsr @ local_save_flags\n" \
+ : "=r" (x) :: "memory", "cc" ); \
+})
+#define local_irq_save(x) \
+({ \
+ local_save_flags(x); \
+ local_irq_disable(); \
+})
+#define local_irq_restore(x) \
+({ \
+ BUILD_BUG_ON(sizeof(x) != sizeof(long)); \
+ asm volatile ( \
+ "msr cpsr_c, %0 @ local_irq_restore\n" \
+ : \
+ : "r" (flags) \
+ : "memory", "cc"); \
+})
+
+static inline int local_irq_is_enabled(void)
+{
+ unsigned long flags;
+ local_save_flags(flags);
+ return !(flags & PSR_IRQ_MASK);
+}
+
+#define local_fiq_enable() __asm__("cpsie f @ __stf\n" : : : "memory", "cc")
+#define local_fiq_disable() __asm__("cpsid f @ __clf\n" : : : "memory", "cc")
+
+#define local_abort_enable() __asm__("cpsie a @ __sta\n" : : : "memory", "cc")
+#define local_abort_disable() __asm__("cpsid a @ __sta\n" : : : "memory", "cc")
+
+static inline int local_fiq_is_enabled(void)
+{
+ unsigned long flags;
+ local_save_flags(flags);
+ return !!(flags & PSR_FIQ_MASK);
+}
+
+#endif
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/trace.h b/xen/include/asm-arm/trace.h
new file mode 100644
index 0000000..db84541
--- /dev/null
+++ b/xen/include/asm-arm/trace.h
@@ -0,0 +1,12 @@
+#ifndef __ASM_TRACE_H__
+#define __ASM_TRACE_H__
+
+#endif /* __ASM_TRACE_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/types.h b/xen/include/asm-arm/types.h
new file mode 100644
index 0000000..48864f9
--- /dev/null
+++ b/xen/include/asm-arm/types.h
@@ -0,0 +1,57 @@
+#ifndef __ARM_TYPES_H__
+#define __ARM_TYPES_H__
+
+#ifndef __ASSEMBLY__
+
+#include <xen/config.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;
+
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+typedef __signed__ long long __s64;
+typedef unsigned long long __u64;
+#endif
+
+typedef signed char s8;
+typedef unsigned char u8;
+
+typedef signed short s16;
+typedef unsigned short u16;
+
+typedef signed int s32;
+typedef unsigned int u32;
+
+typedef signed long long s64;
+typedef unsigned long long u64;
+typedef u64 paddr_t;
+#define INVALID_PADDR (~0ULL)
+#define PRIpaddr "016llx"
+
+typedef unsigned long size_t;
+
+typedef char bool_t;
+#define test_and_set_bool(b) xchg(&(b), 1)
+#define test_and_clear_bool(b) xchg(&(b), 0)
+
+#endif /* __ASSEMBLY__ */
+
+#define BITS_PER_LONG 32
+#define BYTES_PER_LONG 4
+#define LONG_BYTEORDER 2
+
+#endif /* __ARM_TYPES_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/xenoprof.h b/xen/include/asm-arm/xenoprof.h
new file mode 100644
index 0000000..131ac13
--- /dev/null
+++ b/xen/include/asm-arm/xenoprof.h
@@ -0,0 +1,12 @@
+#ifndef __ASM_XENOPROF_H__
+#define __ASM_XENOPROF_H__
+
+#endif /* __ASM_XENOPROF_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/public/arch-arm.h b/xen/include/public/arch-arm.h
new file mode 100644
index 0000000..c430cf3
--- /dev/null
+++ b/xen/include/public/arch-arm.h
@@ -0,0 +1,125 @@
+/******************************************************************************
+ * arch-arm.h
+ *
+ * Guest OS interface to ARM Xen.
+ *
+ * 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.
+ *
+ * Copyright 2011 (C) Citrix Systems
+ */
+
+#ifndef __XEN_PUBLIC_ARCH_ARM_H__
+#define __XEN_PUBLIC_ARCH_ARM_H__
+
+#ifndef __ASSEMBLY__
+#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
+ typedef struct { type *p; } __guest_handle_ ## name
+
+#define __DEFINE_XEN_GUEST_HANDLE(name, type) \
+ ___DEFINE_XEN_GUEST_HANDLE(name, type); \
+ ___DEFINE_XEN_GUEST_HANDLE(const_##name, const type)
+#define DEFINE_XEN_GUEST_HANDLE(name) __DEFINE_XEN_GUEST_HANDLE(name, name)
+#define __XEN_GUEST_HANDLE(name) __guest_handle_ ## name
+#define XEN_GUEST_HANDLE(name) __XEN_GUEST_HANDLE(name)
+#define set_xen_guest_handle_raw(hnd, val) do { (hnd).p = val; } while (0)
+#ifdef __XEN_TOOLS__
+#define get_xen_guest_handle(val, hnd) do { val = (hnd).p; } while (0)
+#endif
+#define set_xen_guest_handle(hnd, val) set_xen_guest_handle_raw(hnd, val)
+
+struct cpu_user_regs
+{
+ uint32_t r0;
+ uint32_t r1;
+ uint32_t r2;
+ uint32_t r3;
+ uint32_t r4;
+ uint32_t r5;
+ uint32_t r6;
+ uint32_t r7;
+ uint32_t r8;
+ uint32_t r9;
+ uint32_t r10;
+ union {
+ uint32_t r11;
+ uint32_t fp;
+ };
+ uint32_t r12;
+
+ uint32_t sp; /* r13 - SP: Valid for Hyp. frames only, o/w banked (see
below) */
+ uint32_t lr; /* r14 - LR: Valid for Hyp. Same physical register as lr_usr.
*/
+
+ uint32_t pc; /* Return IP */
+ uint32_t cpsr; /* Return mode */
+ uint32_t pad0; /* Doubleword-align the kernel half of the frame */
+
+ /* Outer guest frame only from here on... */
+
+ uint32_t r8_fiq, r9_fiq, r10_fiq, r11_fiq, r12_fiq;
+
+ uint32_t sp_usr, sp_svc, sp_abt, sp_und, sp_irq, sp_fiq;
+ uint32_t lr_usr, lr_svc, lr_abt, lr_und, lr_irq, lr_fiq;
+
+ uint32_t spsr_svc, spsr_abt, spsr_und, spsr_irq, spsr_fiq;
+};
+typedef struct cpu_user_regs cpu_user_regs_t;
+DEFINE_XEN_GUEST_HANDLE(cpu_user_regs_t);
+
+typedef uint64_t xen_pfn_t;
+#define PRI_xen_pfn PRIx64
+
+/* Maximum number of virtual CPUs in legacy multi-processor guests. */
+/* Only one. All other VCPUS must use VCPUOP_register_vcpu_info */
+#define XEN_LEGACY_MAX_VCPUS 1
+
+typedef uint32_t xen_ulong_t;
+
+struct vcpu_guest_context {
+ struct cpu_user_regs user_regs; /* User-level CPU registers */
+ union {
+ uint32_t reg[16];
+ struct {
+ uint32_t __pad[12];
+ uint32_t sp; /* r13 */
+ uint32_t lr; /* r14 */
+ uint32_t pc; /* r15 */
+ };
+ };
+};
+typedef struct vcpu_guest_context vcpu_guest_context_t;
+DEFINE_XEN_GUEST_HANDLE(vcpu_guest_context_t);
+
+struct arch_vcpu_info { };
+typedef struct arch_vcpu_info arch_vcpu_info_t;
+
+struct arch_shared_info { };
+typedef struct arch_shared_info arch_shared_info_t;
+#endif
+
+#endif /* __XEN_PUBLIC_ARCH_ARM_H__ */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/public/xen.h b/xen/include/public/xen.h
index 41b14ea..68bce71 100644
--- a/xen/include/public/xen.h
+++ b/xen/include/public/xen.h
@@ -33,6 +33,8 @@
#include "arch-x86/xen.h"
#elif defined(__ia64__)
#include "arch-ia64.h"
+#elif defined(__arm__)
+#include "arch-arm.h"
#else
#error "Unsupported architecture"
#endif
--
1.7.2.5
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