Re: [libvirt] [PATCH 2/4] configure: remove check for CPUID

This check is not required because all i386 and x86_64 cpus have the cpuid instruction.

Signed-off-by: Pavel Hrdina <phrdina(a)redhat.com&gt; --- configure.ac | 19 ------------------- src/cpu/cpu_x86.c | 4 ++-- 2 files changed, 2 insertions(+), 21 deletions(-) diff --git a/configure.ac b/configure.ac index 6f04bdc1f6..3b129e0207 100644 --- a/configure.ac +++ b/configure.ac @@ -265,25 +265,6 @@ LIBVIRT_CHECK_NSS LIBVIRT_CHECK_YAJL LIBVIRT_CHECK_GNUTLS -AC_MSG_CHECKING([for CPUID instruction]) -AC_COMPILE_IFELSE([AC_LANG_PROGRAM( - [[ - #include <stdint.h> - ]], - [[ - uint32_t eax, ebx, ecx, edx; - asm volatile ( - "cpuid" - : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) - : "a" (eax)); - ]])], - [have_cpuid=yes], - [have_cpuid=no]) -if test "x$have_cpuid" = xyes; then - AC_DEFINE_UNQUOTED([HAVE_CPUID], 1, [whether CPUID instruction is supported]) -fi -AC_MSG_RESULT([$have_cpuid]) - AC_CHECK_SIZEOF([long]) dnl Availability of various common functions (non-fatal if missing), diff --git a/src/cpu/cpu_x86.c b/src/cpu/cpu_x86.c index c79308a715..23a519ec00 100644 --- a/src/cpu/cpu_x86.c +++ b/src/cpu/cpu_x86.c @@ -2058,7 +2058,7 @@ x86Encode(virArch arch, } -#if HAVE_CPUID +#if defined(__i386__) || defined(__x86_64__) static inline void cpuidCall(virCPUx86CPUID *cpuid) { @@ -2740,7 +2740,7 @@ struct cpuArchDriver cpuDriverX86 = { .decode = x86DecodeCPUData, .encode = x86Encode, .free = x86FreeCPUData, -#if HAVE_CPUID +#if defined(__i386__) || defined(__x86_64__) .nodeData = x86NodeData, #else .nodeData = NULL,