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[Xen-changelog] [xen-3.4-testing] x86 hvm: Remove vendor-specific feature masking of 0x1:ECX.



# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1250696308 -3600
# Node ID a06f149d515723e0e9fbbc464323ff9616326355
# Parent  68ea3be8b6c14d6de5d7c87fc00e27a596d2a00d
x86 hvm: Remove vendor-specific feature masking of 0x1:ECX.

Vendors are respecting each others bits.

Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
xen-unstable changeset:   20082:9001528d987e
xen-unstable date:        Wed Aug 19 13:16:50 2009 +0100
---
 tools/libxc/xc_cpuid_x86.c |   12 ------------
 1 files changed, 12 deletions(-)

diff -r 68ea3be8b6c1 -r a06f149d5157 tools/libxc/xc_cpuid_x86.c
--- a/tools/libxc/xc_cpuid_x86.c        Wed Aug 19 16:38:01 2009 +0100
+++ b/tools/libxc/xc_cpuid_x86.c        Wed Aug 19 16:38:28 2009 +0100
@@ -71,13 +71,6 @@ static void amd_xc_cpuid_policy(
 {
     switch ( input[0] )
     {
-    case 0x00000001:
-        /* Mask Intel-only features. */
-        regs[2] &= ~(bitmaskof(X86_FEATURE_SSSE3) |
-                     bitmaskof(X86_FEATURE_SSE4_1) |
-                     bitmaskof(X86_FEATURE_SSE4_2));
-        break;
-
     case 0x00000002:
     case 0x00000004:
         regs[0] = regs[1] = regs[2] = 0;
@@ -126,11 +119,6 @@ static void intel_xc_cpuid_policy(
 {
     switch ( input[0] )
     {
-    case 0x00000001:
-        /* Mask AMD-only features. */
-        regs[2] &= ~(bitmaskof(X86_FEATURE_POPCNT));
-        break;
-
     case 0x00000004:
         /*
          * EAX[31:26] is Maximum Cores Per Package (minus one).

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