KVM: x86: Fix xsave cpuid exposing bug

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From 00c920c96127d20d4c3bb790082700ae375c39a0 Mon Sep 17 00:00:00 2001
From: Liu Jinsong <jinsong.liu@intel.com>
Date: Fri, 21 Feb 2014 23:47:18 +0800
Subject: [PATCH] KVM: x86: Fix xsave cpuid exposing bug

EBX of cpuid(0xD, 0) is dynamic per XCR0 features enable/disable.
Bit 63 of XCR0 is reserved for future expansion.

Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

...

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Liu, Jinsong 2014-02-21 17:39:02 +00:00 • committed by Paolo Bonzini

parent 49345f13f0

commit 56c103ec04

3 changed files with 10 additions and 5 deletions

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2

arch/x86/include/asm/xsave.h

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6

arch/x86/kvm/cpuid.c

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7

arch/x86/kvm/x86.c

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