[Xen-devel] [PATCH 5/6] X86: Prepare PCID/INVPCID for hvm

["Liu, Jinsong" <jinsong.liu@xxxxxxxxx>]

X86: Prepare PCID/INVPCID for hvm

This patch is used to prepare exposing PCID/INVPCID features to hvm guest.
The specific exposure result depend on hvm paging mode (hap/shadow), which 
would be handled at next patch.

Signed-off-by: Liu, Jinsong <jinsong.liu@xxxxxxxxx>

diff -r 1b62d4e08880 tools/libxc/xc_cpuid_x86.c
--- a/tools/libxc/xc_cpuid_x86.c        Thu Nov 17 23:09:45 2011 +0800
+++ b/tools/libxc/xc_cpuid_x86.c        Thu Nov 17 23:16:30 2011 +0800
@@ -311,6 +311,7 @@ static void xc_cpuid_hvm_policy(
                     bitmaskof(X86_FEATURE_SSSE3) |
                     bitmaskof(X86_FEATURE_FMA) |
                     bitmaskof(X86_FEATURE_CX16) |
+                    bitmaskof(X86_FEATURE_PCID) |
                     bitmaskof(X86_FEATURE_SSE4_1) |
                     bitmaskof(X86_FEATURE_SSE4_2) |
                     bitmaskof(X86_FEATURE_MOVBE)  |
@@ -363,6 +364,7 @@ static void xc_cpuid_hvm_policy(
                         bitmaskof(X86_FEATURE_SMEP) |
                         bitmaskof(X86_FEATURE_BMI2) |
                         bitmaskof(X86_FEATURE_ERMS) |
+                        bitmaskof(X86_FEATURE_INVPCID) |
                         bitmaskof(X86_FEATURE_FSGSBASE));
         } else
             regs[1] = 0;

Attachment: 5_prepare_pcid_invpcid_for_hvm.patch
Description: 5_prepare_pcid_invpcid_for_hvm.patch

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