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author | Keir Fraser <keir@xen.org> | 2010-12-15 11:09:02 +0000 |
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committer | Keir Fraser <keir@xen.org> | 2010-12-15 11:09:02 +0000 |
commit | d4f5ff0682bc8f06a7ef5dfd6107acae81daedef (patch) | |
tree | 6da4365ee2158b96adaffc3a47f981d5dbc2cddd | |
parent | 464242cd16463dde8745450e9b199cb3dc6e6a06 (diff) | |
download | xen-d4f5ff0682bc8f06a7ef5dfd6107acae81daedef.tar.gz xen-d4f5ff0682bc8f06a7ef5dfd6107acae81daedef.tar.bz2 xen-d4f5ff0682bc8f06a7ef5dfd6107acae81daedef.zip |
x86 hvm: Expose TSC_DEADLINE CPU feature to guests via CPUID.
Signed-off-by: Wei Gang <gang.wei@intel.com>
-rw-r--r-- | tools/libxc/xc_cpufeature.h | 1 | ||||
-rw-r--r-- | tools/libxc/xc_cpuid_x86.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/tools/libxc/xc_cpufeature.h b/tools/libxc/xc_cpufeature.h index b1731d2f4a..73c7f91ca9 100644 --- a/tools/libxc/xc_cpufeature.h +++ b/tools/libxc/xc_cpufeature.h @@ -100,6 +100,7 @@ #define X86_FEATURE_SSE4_2 (4*32+20) /* Streaming SIMD Extensions 4.2 */ #define X86_FEATURE_X2APIC (4*32+21) /* x2APIC */ #define X86_FEATURE_POPCNT (4*32+23) /* POPCNT instruction */ +#define X86_FEATURE_TSC_DEADLINE (4*32+24) /* "tdt" TSC Deadline Timer */ #define X86_FEATURE_AES (4*32+25) /* AES acceleration instructions */ #define X86_FEATURE_XSAVE (4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV */ #define X86_FEATURE_AVX (4*32+28) /* Advanced Vector Extensions */ diff --git a/tools/libxc/xc_cpuid_x86.c b/tools/libxc/xc_cpuid_x86.c index 6ae192d10f..c5b452488a 100644 --- a/tools/libxc/xc_cpuid_x86.c +++ b/tools/libxc/xc_cpuid_x86.c @@ -209,6 +209,7 @@ static void xc_cpuid_hvm_policy( bitmaskof(X86_FEATURE_XSAVE)) : 0)); regs[2] |= (bitmaskof(X86_FEATURE_HYPERVISOR) | + bitmaskof(X86_FEATURE_TSC_DEADLINE) | bitmaskof(X86_FEATURE_X2APIC)); regs[3] &= (bitmaskof(X86_FEATURE_FPU) | |