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| author | Liu, Jinsong <jinsong.liu@intel.com> | 2011-12-06 11:28:04 +0000 |
|---|---|---|
| committer | Liu, Jinsong <jinsong.liu@intel.com> | 2011-12-06 11:28:04 +0000 |
| commit | 7de3c6981cd882df78ced5b1542889c78e3a5b53 (patch) | |
| tree | 3ef4dfc28da972254c5518ab5a209f3010b85735 | |
| parent | 25050f53be29518a3c9bdd0628333cd3121d2750 (diff) | |
| download | xen-7de3c6981cd882df78ced5b1542889c78e3a5b53.tar.gz xen-7de3c6981cd882df78ced5b1542889c78e3a5b53.tar.bz2 xen-7de3c6981cd882df78ced5b1542889c78e3a5b53.zip | |
X86: Disable PCID/INVPCID for pv
This patch disable PCID/INVPCID for pv.
Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com>
Committed-by: Keir Fraser <keir@xen.org>
| -rw-r--r-- | tools/libxc/xc_cpufeature.h | 2 | ||||
| -rw-r--r-- | tools/libxc/xc_cpuid_x86.c | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/tools/libxc/xc_cpufeature.h b/tools/libxc/xc_cpufeature.h index 01a378a741..ff7c3d0042 100644 --- a/tools/libxc/xc_cpufeature.h +++ b/tools/libxc/xc_cpufeature.h @@ -78,6 +78,7 @@ #define X86_FEATURE_CX16 13 /* CMPXCHG16B */ #define X86_FEATURE_XTPR 14 /* Send Task Priority Messages */ #define X86_FEATURE_PDCM 15 /* Perf/Debug Capability MSR */ +#define X86_FEATURE_PCID 17 /* Process Context ID */ #define X86_FEATURE_DCA 18 /* Direct Cache Access */ #define X86_FEATURE_SSE4_1 19 /* Streaming SIMD Extensions 4.1 */ #define X86_FEATURE_SSE4_2 20 /* Streaming SIMD Extensions 4.2 */ @@ -132,5 +133,6 @@ #define X86_FEATURE_SMEP 7 /* Supervisor Mode Execution Protection */ #define X86_FEATURE_BMI2 8 /* 2nd group bit manipulation extensions */ #define X86_FEATURE_ERMS 9 /* Enhanced REP MOVSB/STOSB */ +#define X86_FEATURE_INVPCID 10 /* Invalidate Process Context ID */ #endif /* __LIBXC_CPUFEATURE_H */ diff --git a/tools/libxc/xc_cpuid_x86.c b/tools/libxc/xc_cpuid_x86.c index ccd73501ea..7b6b439e3b 100644 --- a/tools/libxc/xc_cpuid_x86.c +++ b/tools/libxc/xc_cpuid_x86.c @@ -485,6 +485,7 @@ static void xc_cpuid_pv_policy( } clear_bit(X86_FEATURE_XTPR, regs[2]); clear_bit(X86_FEATURE_PDCM, regs[2]); + clear_bit(X86_FEATURE_PCID, regs[2]); clear_bit(X86_FEATURE_DCA, regs[2]); set_bit(X86_FEATURE_HYPERVISOR, regs[2]); break; |