|
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] x86: Re-factor and clean up system.h.
# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1195655258 0
# Node ID 7ccf7d373d0e98014525eeaed8c0bf3623646ae8
# Parent 6301c3b6e1baa09a43c0df21e03ad544327b0810
x86: Re-factor and clean up system.h.
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
---
xen/include/asm-x86/system.h | 369 ++++++++++--------------------------
xen/include/asm-x86/x86_32/system.h | 115 +++++++++++
xen/include/asm-x86/x86_64/system.h | 69 ++++++
3 files changed, 289 insertions(+), 264 deletions(-)
diff -r 6301c3b6e1ba -r 7ccf7d373d0e xen/include/asm-x86/system.h
--- a/xen/include/asm-x86/system.h Wed Nov 21 12:00:20 2007 +0000
+++ b/xen/include/asm-x86/system.h Wed Nov 21 14:27:38 2007 +0000
@@ -5,69 +5,78 @@
#include <xen/types.h>
#include <asm/bitops.h>
-#define read_segment_register(name) \
-({ u16 __sel; \
- __asm__ __volatile__ ( "movw %%" STR(name) ",%0" : "=r" (__sel) ); \
- __sel; \
+#define read_segment_register(name) \
+({ u16 __sel; \
+ asm volatile ( "movw %%" STR(name) ",%0" : "=r" (__sel) ); \
+ __sel; \
})
#define wbinvd() \
- __asm__ __volatile__ ("wbinvd": : :"memory");
+ asm volatile ( "wbinvd" : : : "memory" )
#define clflush(a) \
- __asm__ __volatile__ ("clflush (%0)": :"r"(a));
+ asm volatile ( "clflush (%0)" : : "r"(a) )
-#define nop() __asm__ __volatile__ ("nop")
+#define nop() \
+ asm volatile ( "nop" )
-#define xchg(ptr,v) ((__typeof__(*(ptr)))__xchg((unsigned
long)(v),(ptr),sizeof(*(ptr))))
+#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))
+#if defined(__i386__)
+# include <asm/x86_32/system.h>
+#elif defined(__x86_64__)
+# include <asm/x86_64/system.h>
+#endif
/*
* Note: no "lock" prefix even on SMP: xchg always implies lock anyway
* Note 2: xchg has side effect, so that attribute volatile is necessary,
* but generally the primitive is invalid, *ptr is output argument. --ANK
*/
-static always_inline unsigned long __xchg(unsigned long x, volatile void *
ptr, int size)
+static always_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((volatile void *)ptr)), "0" (x)
- :"memory");
- break;
- case 2:
- __asm__ __volatile__("xchgw %w0,%1"
- :"=r" (x)
- :"m" (*__xg((volatile void *)ptr)), "0" (x)
- :"memory");
- break;
+ switch ( size )
+ {
+ case 1:
+ asm volatile ( "xchgb %b0,%1"
+ : "=q" (x)
+ : "m" (*__xg((volatile void *)ptr)), "0" (x)
+ : "memory" );
+ break;
+ case 2:
+ asm volatile ( "xchgw %w0,%1"
+ : "=r" (x)
+ : "m" (*__xg((volatile void *)ptr)), "0" (x)
+ : "memory" );
+ break;
#if defined(__i386__)
- case 4:
- __asm__ __volatile__("xchgl %0,%1"
- :"=r" (x)
- :"m" (*__xg((volatile void *)ptr)), "0" (x)
- :"memory");
- break;
+ case 4:
+ asm volatile ( "xchgl %0,%1"
+ : "=r" (x)
+ : "m" (*__xg((volatile void *)ptr)), "0" (x)
+ : "memory" );
+ break;
#elif defined(__x86_64__)
- case 4:
- __asm__ __volatile__("xchgl %k0,%1"
- :"=r" (x)
- :"m" (*__xg((volatile void *)ptr)), "0" (x)
- :"memory");
- break;
- case 8:
- __asm__ __volatile__("xchgq %0,%1"
- :"=r" (x)
- :"m" (*__xg((volatile void *)ptr)), "0" (x)
- :"memory");
- break;
+ case 4:
+ asm volatile ( "xchgl %k0,%1"
+ : "=r" (x)
+ : "m" (*__xg((volatile void *)ptr)), "0" (x)
+ : "memory" );
+ break;
+ case 8:
+ asm volatile ( "xchgq %0,%1"
+ : "=r" (x)
+ : "m" (*__xg((volatile void *)ptr)), "0" (x)
+ : "memory" );
+ break;
#endif
- }
- return x;
+ }
+ return x;
}
/*
@@ -79,241 +88,73 @@ static always_inline unsigned long __cmp
static always_inline unsigned long __cmpxchg(
volatile void *ptr, unsigned long old, unsigned long new, int size)
{
- unsigned long prev;
- switch (size) {
- case 1:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgb %b1,%2"
- : "=a"(prev)
- : "q"(new), "m"(*__xg((volatile void
*)ptr)), "0"(old)
- : "memory");
- return prev;
- case 2:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgw %w1,%2"
- : "=a"(prev)
- : "r"(new), "m"(*__xg((volatile void
*)ptr)), "0"(old)
- : "memory");
- return prev;
+ unsigned long prev;
+ switch ( size )
+ {
+ case 1:
+ asm volatile ( LOCK_PREFIX "cmpxchgb %b1,%2"
+ : "=a" (prev)
+ : "q" (new), "m" (*__xg((volatile void *)ptr)),
+ "0" (old)
+ : "memory" );
+ return prev;
+ case 2:
+ asm volatile ( LOCK_PREFIX "cmpxchgw %w1,%2"
+ : "=a" (prev)
+ : "r" (new), "m" (*__xg((volatile void *)ptr)),
+ "0" (old)
+ : "memory" );
+ return prev;
#if defined(__i386__)
- case 4:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgl %1,%2"
- : "=a"(prev)
- : "r"(new), "m"(*__xg((volatile void
*)ptr)), "0"(old)
- : "memory");
- return prev;
+ case 4:
+ asm volatile ( LOCK_PREFIX "cmpxchgl %1,%2"
+ : "=a" (prev)
+ : "r" (new), "m" (*__xg((volatile void *)ptr)),
+ "0" (old)
+ : "memory" );
+ return prev;
#elif defined(__x86_64__)
- case 4:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgl %k1,%2"
- : "=a"(prev)
- : "r"(new), "m"(*__xg((volatile void
*)ptr)), "0"(old)
- : "memory");
- return prev;
- case 8:
- __asm__ __volatile__(LOCK_PREFIX "cmpxchgq %1,%2"
- : "=a"(prev)
- : "r"(new), "m"(*__xg((volatile void
*)ptr)), "0"(old)
- : "memory");
- return prev;
+ case 4:
+ asm volatile ( LOCK_PREFIX "cmpxchgl %k1,%2"
+ : "=a" (prev)
+ : "r" (new), "m" (*__xg((volatile void *)ptr)),
+ "0" (old)
+ : "memory" );
+ return prev;
+ case 8:
+ asm volatile ( LOCK_PREFIX "cmpxchgq %1,%2"
+ : "=a" (prev)
+ : "r" (new), "m" (*__xg((volatile void *)ptr)),
+ "0" (old)
+ : "memory" );
+ return prev;
#endif
- }
- return old;
+ }
+ return old;
}
#define __HAVE_ARCH_CMPXCHG
-#if BITS_PER_LONG == 64
-
-#define cmpxchg(ptr,o,n) \
- ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o), \
- (unsigned long)(n),sizeof(*(ptr))))
+#ifdef CONFIG_SMP
+#define smp_mb() mb()
+#define smp_rmb() rmb()
+#define smp_wmb() wmb()
#else
-
-static always_inline unsigned long long __cmpxchg8b(
- volatile void *ptr, unsigned long long old, unsigned long long new)
-{
- unsigned long long prev;
- __asm__ __volatile__ (
- LOCK_PREFIX "cmpxchg8b %3"
- : "=A" (prev)
- : "c" ((u32)(new>>32)), "b" ((u32)new),
- "m" (*__xg((volatile void *)ptr)), "0" (old)
- : "memory" );
- return prev;
-}
-
-#define cmpxchg(ptr,o,n) \
-({ \
- __typeof__(*(ptr)) __prev; \
- switch ( sizeof(*(ptr)) ) { \
- case 8: \
- __prev = ((__typeof__(*(ptr)))__cmpxchg8b( \
- (ptr), \
- (unsigned long long)(o), \
- (unsigned long long)(n))); \
- break; \
- default: \
- __prev = ((__typeof__(*(ptr)))__cmpxchg( \
- (ptr), \
- (unsigned long)(o), \
- (unsigned long)(n), \
- sizeof(*(ptr)))); \
- break; \
- } \
- __prev; \
-})
-
-#endif
-
-
-/*
- * This function causes value _o to be changed to _n at location _p.
- * If this access causes a fault then we return 1, otherwise we return 0.
- * If no fault occurs then _o is updated to the value we saw at _p. If this
- * is the same as the initial value of _o then _n is written to location _p.
- */
-#ifdef __i386__
-#define __cmpxchg_user(_p,_o,_n,_isuff,_oppre,_regtype) \
- __asm__ __volatile__ ( \
- "1: " LOCK_PREFIX "cmpxchg"_isuff" %"_oppre"2,%3\n" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3: movl $1,%1\n" \
- " jmp 2b\n" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 4\n" \
- " .long 1b,3b\n" \
- ".previous" \
- : "=a" (_o), "=r" (_rc) \
- : _regtype (_n), "m" (*__xg((volatile void *)_p)), "0" (_o), "1" (0) \
- : "memory");
-#define cmpxchg_user(_p,_o,_n) \
-({ \
- int _rc; \
- switch ( sizeof(*(_p)) ) { \
- case 1: \
- __cmpxchg_user(_p,_o,_n,"b","b","q"); \
- break; \
- case 2: \
- __cmpxchg_user(_p,_o,_n,"w","w","r"); \
- break; \
- case 4: \
- __cmpxchg_user(_p,_o,_n,"l","","r"); \
- break; \
- case 8: \
- __asm__ __volatile__ ( \
- "1: " LOCK_PREFIX "cmpxchg8b %4\n" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3: movl $1,%1\n" \
- " jmp 2b\n" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 4\n" \
- " .long 1b,3b\n" \
- ".previous" \
- : "=A" (_o), "=r" (_rc) \
- : "c" ((u32)((u64)(_n)>>32)), "b" ((u32)(_n)), \
- "m" (*__xg((volatile void *)(_p))), "0" (_o), "1" (0) \
- : "memory"); \
- break; \
- } \
- _rc; \
-})
-#else
-#define __cmpxchg_user(_p,_o,_n,_isuff,_oppre,_regtype) \
- __asm__ __volatile__ ( \
- "1: " LOCK_PREFIX "cmpxchg"_isuff" %"_oppre"2,%3\n" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3: movl $1,%1\n" \
- " jmp 2b\n" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 8\n" \
- " .quad 1b,3b\n" \
- ".previous" \
- : "=a" (_o), "=r" (_rc) \
- : _regtype (_n), "m" (*__xg((volatile void *)_p)), "0" (_o), "1" (0) \
- : "memory");
-#define cmpxchg_user(_p,_o,_n) \
-({ \
- int _rc; \
- switch ( sizeof(*(_p)) ) { \
- case 1: \
- __cmpxchg_user(_p,_o,_n,"b","b","q"); \
- break; \
- case 2: \
- __cmpxchg_user(_p,_o,_n,"w","w","r"); \
- break; \
- case 4: \
- __cmpxchg_user(_p,_o,_n,"l","k","r"); \
- break; \
- case 8: \
- __cmpxchg_user(_p,_o,_n,"q","","r"); \
- break; \
- } \
- _rc; \
-})
-#endif
-
-static inline void atomic_write64(uint64_t *p, uint64_t v)
-{
-#ifdef __i386__
- uint64_t w = *p, x;
- while ( (x = __cmpxchg8b(p, w, v)) != w )
- w = x;
-#else
- *p = v;
-#endif
-}
-
-#if defined(__i386__)
-#define mb() __asm__ __volatile__ ("lock; addl $0,0(%%esp)": : :"memory")
-#define rmb() __asm__ __volatile__ ("lock; addl $0,0(%%esp)": : :"memory")
-#elif defined(__x86_64__)
-#define mb() __asm__ __volatile__ ("mfence":::"memory")
-#define rmb() __asm__ __volatile__ ("lfence":::"memory")
-#endif
-#define wmb() __asm__ __volatile__ ("": : :"memory")
-
-#ifdef CONFIG_SMP
-#define smp_mb() mb()
-#define smp_rmb() rmb()
-#define smp_wmb() wmb()
-#else
-#define smp_mb() barrier()
-#define smp_rmb() barrier()
-#define smp_wmb() barrier()
+#define smp_mb() barrier()
+#define smp_rmb() barrier()
+#define smp_wmb() barrier()
#endif
#define set_mb(var, value) do { xchg(&var, value); } while (0)
#define set_wmb(var, value) do { var = value; wmb(); } while (0)
-/* interrupt control.. */
-#if defined(__i386__)
-#define __save_flags(x) __asm__ __volatile__("pushfl ; popl
%0":"=g" (x): /* no input */)
-#define __restore_flags(x) __asm__ __volatile__("pushl %0 ; popfl": /* no
output */ :"g" (x):"memory", "cc")
-#elif defined(__x86_64__)
-#define __save_flags(x) do { __asm__ __volatile__("# save_flags
\n\t pushfq ; popq %q0":"=g" (x): /* no input */ :"memory"); } while (0)
-#define __restore_flags(x) __asm__ __volatile__("# restore_flags \n\t
pushq %0 ; popfq": /* no output */ :"g" (x):"memory", "cc")
-#endif
-#define __cli() __asm__ __volatile__("cli": : :"memory")
-#define __sti() __asm__ __volatile__("sti": : :"memory")
+#define local_irq_disable() asm volatile ( "cli" : : : "memory" )
+#define local_irq_enable() asm volatile ( "sti" : : : "memory" )
+
/* used in the idle loop; sti takes one instruction cycle to complete */
-#define safe_halt() __asm__ __volatile__("sti; hlt": : :"memory")
+#define safe_halt() asm volatile ( "sti; hlt" : : : "memory" )
/* used when interrupts are already enabled or to shutdown the processor */
-#define halt() __asm__ __volatile__("hlt": : :"memory")
-
-/* For spinlocks etc */
-#if defined(__i386__)
-#define local_irq_save(x) __asm__ __volatile__("pushfl ; popl %0 ;
cli":"=g" (x): /* no input */ :"memory")
-#define local_irq_restore(x) __restore_flags(x)
-#elif defined(__x86_64__)
-#define local_irq_save(x) do { __asm__ __volatile__("# local_irq_save
\n\t pushfq ; popq %0 ; cli":"=g" (x): /* no input */ :"memory"); } while (0)
-#define local_irq_restore(x) __asm__ __volatile__("# local_irq_restore \n\t
pushq %0 ; popfq": /* no output */ :"g" (x):"memory")
-#endif
-#define local_irq_disable() __cli()
-#define local_irq_enable() __sti()
+#define halt() asm volatile ( "hlt" : : : "memory" )
static inline int local_irq_is_enabled(void)
{
@@ -322,8 +163,8 @@ static inline int local_irq_is_enabled(v
return !!(flags & (1<<9)); /* EFLAGS_IF */
}
-#define BROKEN_ACPI_Sx 0x0001
-#define BROKEN_INIT_AFTER_S1 0x0002
+#define BROKEN_ACPI_Sx 0x0001
+#define BROKEN_INIT_AFTER_S1 0x0002
void trap_init(void);
void percpu_traps_init(void);
diff -r 6301c3b6e1ba -r 7ccf7d373d0e xen/include/asm-x86/x86_32/system.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/include/asm-x86/x86_32/system.h Wed Nov 21 14:27:38 2007 +0000
@@ -0,0 +1,115 @@
+#ifndef __X86_32_SYSTEM_H__
+#define __X86_32_SYSTEM_H__
+
+static always_inline unsigned long long __cmpxchg8b(
+ volatile void *ptr, unsigned long long old, unsigned long long new)
+{
+ unsigned long long prev;
+ asm volatile (
+ LOCK_PREFIX "cmpxchg8b %3"
+ : "=A" (prev)
+ : "c" ((u32)(new>>32)), "b" ((u32)new),
+ "m" (*__xg((volatile void *)ptr)), "0" (old)
+ : "memory" );
+ return prev;
+}
+
+#define cmpxchg(ptr,o,n) \
+({ \
+ __typeof__(*(ptr)) __prev; \
+ switch ( sizeof(*(ptr)) ) { \
+ case 8: \
+ __prev = ((__typeof__(*(ptr)))__cmpxchg8b( \
+ (ptr), \
+ (unsigned long long)(o), \
+ (unsigned long long)(n))); \
+ break; \
+ default: \
+ __prev = ((__typeof__(*(ptr)))__cmpxchg( \
+ (ptr), \
+ (unsigned long)(o), \
+ (unsigned long)(n), \
+ sizeof(*(ptr)))); \
+ break; \
+ } \
+ __prev; \
+})
+
+/*
+ * This function causes value _o to be changed to _n at location _p.
+ * If this access causes a fault then we return 1, otherwise we return 0.
+ * If no fault occurs then _o is updated to the value we saw at _p. If this
+ * is the same as the initial value of _o then _n is written to location _p.
+ */
+#define __cmpxchg_user(_p,_o,_n,_isuff,_oppre,_regtype) \
+ asm volatile ( \
+ "1: " LOCK_PREFIX "cmpxchg"_isuff" %"_oppre"2,%3\n" \
+ "2:\n" \
+ ".section .fixup,\"ax\"\n" \
+ "3: movl $1,%1\n" \
+ " jmp 2b\n" \
+ ".previous\n" \
+ ".section __ex_table,\"a\"\n" \
+ " .align 4\n" \
+ " .long 1b,3b\n" \
+ ".previous" \
+ : "=a" (_o), "=r" (_rc) \
+ : _regtype (_n), "m" (*__xg((volatile void *)_p)), "0" (_o), "1" (0) \
+ : "memory");
+
+#define cmpxchg_user(_p,_o,_n) \
+({ \
+ int _rc; \
+ switch ( sizeof(*(_p)) ) { \
+ case 1: \
+ __cmpxchg_user(_p,_o,_n,"b","b","q"); \
+ break; \
+ case 2: \
+ __cmpxchg_user(_p,_o,_n,"w","w","r"); \
+ break; \
+ case 4: \
+ __cmpxchg_user(_p,_o,_n,"l","","r"); \
+ break; \
+ case 8: \
+ asm volatile ( \
+ "1: " LOCK_PREFIX "cmpxchg8b %4\n" \
+ "2:\n" \
+ ".section .fixup,\"ax\"\n" \
+ "3: movl $1,%1\n" \
+ " jmp 2b\n" \
+ ".previous\n" \
+ ".section __ex_table,\"a\"\n" \
+ " .align 4\n" \
+ " .long 1b,3b\n" \
+ ".previous" \
+ : "=A" (_o), "=r" (_rc) \
+ : "c" ((u32)((u64)(_n)>>32)), "b" ((u32)(_n)), \
+ "m" (*__xg((volatile void *)(_p))), "0" (_o), "1" (0) \
+ : "memory"); \
+ break; \
+ } \
+ _rc; \
+})
+
+static inline void atomic_write64(uint64_t *p, uint64_t v)
+{
+ uint64_t w = *p, x;
+ while ( (x = __cmpxchg8b(p, w, v)) != w )
+ w = x;
+}
+
+#define mb() asm volatile ( "lock; addl $0,0(%%esp)" : : : "memory" )
+#define rmb() asm volatile ( "lock; addl $0,0(%%esp)" : : : "memory" )
+#define wmb() asm volatile ( "" : : : "memory" )
+
+#define __save_flags(x) \
+ asm volatile ( "pushfl ; popl %0" : "=g" (x) : )
+#define __restore_flags(x) \
+ asm volatile ( "pushl %0 ; popfl" : : "g" (x) : "memory", "cc" )
+
+#define local_irq_save(x) \
+ asm volatile ( "pushfl ; popl %0 ; cli" : "=g" (x) : : "memory" )
+#define local_irq_restore(x) \
+ __restore_flags(x)
+
+#endif /* __X86_32_SYSTEM_H__ */
diff -r 6301c3b6e1ba -r 7ccf7d373d0e xen/include/asm-x86/x86_64/system.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/include/asm-x86/x86_64/system.h Wed Nov 21 14:27:38 2007 +0000
@@ -0,0 +1,69 @@
+#ifndef __X86_64_SYSTEM_H__
+#define __X86_64_SYSTEM_H__
+
+#define cmpxchg(ptr,o,n) \
+ ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o), \
+ (unsigned long)(n),sizeof(*(ptr))))
+
+/*
+ * This function causes value _o to be changed to _n at location _p.
+ * If this access causes a fault then we return 1, otherwise we return 0.
+ * If no fault occurs then _o is updated to the value we saw at _p. If this
+ * is the same as the initial value of _o then _n is written to location _p.
+ */
+#define __cmpxchg_user(_p,_o,_n,_isuff,_oppre,_regtype) \
+ asm volatile ( \
+ "1: " LOCK_PREFIX "cmpxchg"_isuff" %"_oppre"2,%3\n" \
+ "2:\n" \
+ ".section .fixup,\"ax\"\n" \
+ "3: movl $1,%1\n" \
+ " jmp 2b\n" \
+ ".previous\n" \
+ ".section __ex_table,\"a\"\n" \
+ " .align 8\n" \
+ " .quad 1b,3b\n" \
+ ".previous" \
+ : "=a" (_o), "=r" (_rc) \
+ : _regtype (_n), "m" (*__xg((volatile void *)_p)), "0" (_o), "1" (0) \
+ : "memory");
+
+#define cmpxchg_user(_p,_o,_n) \
+({ \
+ int _rc; \
+ switch ( sizeof(*(_p)) ) { \
+ case 1: \
+ __cmpxchg_user(_p,_o,_n,"b","b","q"); \
+ break; \
+ case 2: \
+ __cmpxchg_user(_p,_o,_n,"w","w","r"); \
+ break; \
+ case 4: \
+ __cmpxchg_user(_p,_o,_n,"l","k","r"); \
+ break; \
+ case 8: \
+ __cmpxchg_user(_p,_o,_n,"q","","r"); \
+ break; \
+ } \
+ _rc; \
+})
+
+static inline void atomic_write64(uint64_t *p, uint64_t v)
+{
+ *p = v;
+}
+
+#define mb() asm volatile ( "mfence" : : : "memory" )
+#define rmb() asm volatile ( "lfence" : : : "memory" )
+#define wmb() asm volatile ( "" : : : "memory" )
+
+#define __save_flags(x) \
+ asm volatile ( "pushfq ; popq %q0" : "=g" (x) : :"memory" )
+#define __restore_flags(x) \
+ asm volatile ( "pushq %0 ; popfq" : : "g" (x) : "memory", "cc" )
+
+#define local_irq_save(x) \
+ asm volatile ( "pushfq ; popq %0 ; cli" : "=g" (x) : : "memory" )
+#define local_irq_restore(x) \
+ __restore_flags(x)
+
+#endif /* __X86_64_SYSTEM_H__ */
_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog
|
 |
Lists.xenproject.org is hosted with RackSpace, monitoring our |