[Xen-changelog] [xen-unstable] X86: Prepare PCID/INVPCID for hvm

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Liu, Jinsong <jinsong.liu@xxxxxxxxx>
# Date 1323170910 0
# Node ID ff988cea61ea0a0142bb525bd616517602b19cc9
# Parent  d313582d4fa2157332f1d50e599aebca36c41b3b
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>
Committed-by: Keir Fraser <keir@xxxxxxx>
---


diff -r d313582d4fa2 -r ff988cea61ea tools/libxc/xc_cpuid_x86.c
--- a/tools/libxc/xc_cpuid_x86.c        Tue Dec 06 11:28:04 2011 +0000
+++ b/tools/libxc/xc_cpuid_x86.c        Tue Dec 06 11:28:30 2011 +0000
@@ -310,6 +310,7 @@
                     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)  |
@@ -365,6 +366,7 @@
                         bitmaskof(X86_FEATURE_SMEP) |
                         bitmaskof(X86_FEATURE_BMI2) |
                         bitmaskof(X86_FEATURE_ERMS) |
+                        bitmaskof(X86_FEATURE_INVPCID) |
                         bitmaskof(X86_FEATURE_FSGSBASE));
         } else
             regs[1] = 0;

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