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[Qemu-devel] [PATCH] Don't declare XSAVE as supported


From: Andi Kleen
Subject: [Qemu-devel] [PATCH] Don't declare XSAVE as supported
Date: Sat, 26 Jun 2010 22:54:21 +0200
User-agent: Mutt/1.5.20 (2009-06-14)

Don't declare XSAVE as supported

i386 cpuid.c currently claims XSAVE is supported in the CPUID filter,
but that's not true: Only FXSAVE is supported. Remove that bit
from the filter.

Signed-off-by: Andi Kleen <address@hidden>

diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c
index 6a0f7ca..4251a29 100644
--- a/target-i386/cpuid.c
+++ b/target-i386/cpuid.c
@@ -241,11 +241,11 @@ typedef struct x86_def_t {
           /* missing:
           CPUID_VME, CPUID_DTS, CPUID_SS, CPUID_HT, CPUID_TM, CPUID_PBE */
 #define TCG_EXT_FEATURES (CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | \
-          CPUID_EXT_CX16 | CPUID_EXT_POPCNT | CPUID_EXT_XSAVE | \
+          CPUID_EXT_CX16 | CPUID_EXT_POPCNT | \
           CPUID_EXT_HYPERVISOR)
           /* missing:
           CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_EST,
-          CPUID_EXT_TM2, CPUID_EXT_XTPR, CPUID_EXT_PDCM */
+          CPUID_EXT_TM2, CPUID_EXT_XTPR, CPUID_EXT_PDCM, CPUID_EXT_XSAVE */
 #define TCG_EXT2_FEATURES ((TCG_FEATURES & EXT2_FEATURE_MASK) | \
           CPUID_EXT2_NX | CPUID_EXT2_MMXEXT | CPUID_EXT2_RDTSCP | \
           CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT)



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