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openSUSE:Evergreen:Maintenance:114
xen.openSUSE_Evergreen_11.4
24360-x86-pv-domU-no-PCID.patch
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File 24360-x86-pv-domU-no-PCID.patch of Package xen.openSUSE_Evergreen_11.4
# HG changeset patch # User Liu, Jinsong <jinsong.liu@intel.com> # Date 1323170884 0 # Node ID d313582d4fa2157332f1d50e599aebca36c41b3b # Parent a0befa32e927cc147aaee9bce42c51f53580a875 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> --- a/tools/libxc/xc_cpufeature.h +++ b/tools/libxc/xc_cpufeature.h @@ -79,6 +79,7 @@ #define X86_FEATURE_CX16 (4*32+13) /* CMPXCHG16B */ #define X86_FEATURE_XTPR (4*32+14) /* Send Task Priority Messages */ #define X86_FEATURE_PDCM (4*32+15) /* Perf/Debug Capability MSR */ +#define X86_FEATURE_PCID (4*32+17) /* Process Context ID */ #define X86_FEATURE_DCA (4*32+18) /* Direct Cache Access */ #define X86_FEATURE_SSE4_1 (4*32+19) /* Streaming SIMD Extensions 4.1 */ #define X86_FEATURE_SSE4_2 (4*32+20) /* Streaming SIMD Extensions 4.2 */ --- a/tools/libxc/xc_cpuid_x86.c +++ b/tools/libxc/xc_cpuid_x86.c @@ -317,6 +317,7 @@ static void xc_cpuid_pv_policy( clear_bit(X86_FEATURE_CX16, regs[2]); 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]); clear_bit(X86_FEATURE_XSAVE, regs[2]); set_bit(X86_FEATURE_HYPERVISOR, regs[2]);
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