debuggers.hg
changeset 21022:f8692cc67d67
libxc: Fix cpuid() inline asm.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
author | Keir Fraser <keir.fraser@citrix.com> |
---|---|
date | Wed Feb 24 18:48:54 2010 +0000 (2010-02-24) |
parents | 9c0793e75f54 |
children | e4851c5b7d00 |
files | tools/libxc/xc_cpuid_x86.c |
line diff
1.1 --- a/tools/libxc/xc_cpuid_x86.c Wed Feb 24 11:03:56 2010 +0000 1.2 +++ b/tools/libxc/xc_cpuid_x86.c Wed Feb 24 18:48:54 2010 +0000 1.3 @@ -43,12 +43,21 @@ static void cpuid(const unsigned int *in 1.4 unsigned int count = (input[1] == XEN_CPUID_INPUT_UNUSED) ? 0 : input[1]; 1.5 asm ( 1.6 #ifdef __i386__ 1.7 - "push %%ebx; cpuid; mov %%ebx,%1; pop %%ebx" 1.8 + "push %%ebx; push %%edx\n\t" 1.9 #else 1.10 - "push %%rbx; cpuid; mov %%ebx,%1; pop %%rbx" 1.11 + "push %%rbx; push %%rdx\n\t" 1.12 #endif 1.13 - : "=a" (regs[0]), "=r" (regs[1]), "=c" (regs[2]), "=d" (regs[3]) 1.14 - : "0" (input[0]), "2" (count) ); 1.15 + "cpuid\n\t" 1.16 + "mov %%ebx,4(%4)\n\t" 1.17 + "mov %%edx,12(%4)\n\t" 1.18 +#ifdef __i386__ 1.19 + "pop %%edx; pop %%ebx\n\t" 1.20 +#else 1.21 + "pop %%rdx; pop %%rbx\n\t" 1.22 +#endif 1.23 + : "=a" (regs[0]), "=c" (regs[2]) 1.24 + : "0" (input[0]), "1" (count), "S" (regs) 1.25 + : "memory" ); 1.26 } 1.27 1.28 /* Get the manufacturer brand name of the host processor. */