From mboxrd@z Thu Jan 1 00:00:00 1970 From: Glauber Costa Subject: [PATCH 4/9] add new KVMCLOCK cpuid feature Date: Tue, 11 May 2010 12:17:42 -0400 Message-ID: <1273594667-17175-5-git-send-email-glommer@redhat.com> References: <1273594667-17175-1-git-send-email-glommer@redhat.com> <1273594667-17175-2-git-send-email-glommer@redhat.com> <1273594667-17175-3-git-send-email-glommer@redhat.com> <1273594667-17175-4-git-send-email-glommer@redhat.com> Cc: linux-kernel@vger.kernel.org, avi@redhat.com, zamsden@redhat.com To: kvm@vger.kernel.org Return-path: In-Reply-To: <1273594667-17175-4-git-send-email-glommer@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org This cpuid, KVM_CPUID_CLOCKSOURCE2, will indicate to the guest that kvmclock is available through a new set of MSRs. The old ones are deprecated. Signed-off-by: Glauber Costa --- arch/x86/include/asm/kvm_para.h | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h index 9734808..f019f8c 100644 --- a/arch/x86/include/asm/kvm_para.h +++ b/arch/x86/include/asm/kvm_para.h @@ -16,6 +16,10 @@ #define KVM_FEATURE_CLOCKSOURCE 0 #define KVM_FEATURE_NOP_IO_DELAY 1 #define KVM_FEATURE_MMU_OP 2 +/* This indicates that the new set of kvmclock msrs + * are available. The use of 0x11 and 0x12 is deprecated + */ +#define KVM_FEATURE_CLOCKSOURCE2 3 #define MSR_KVM_WALL_CLOCK 0x11 #define MSR_KVM_SYSTEM_TIME 0x12 -- 1.6.2.2