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Re: [Qemu-devel] [PATCH] KVM: emulate lapic tsc deadline timer for hvm
From: |
Marcelo Tosatti |
Subject: |
Re: [Qemu-devel] [PATCH] KVM: emulate lapic tsc deadline timer for hvm |
Date: |
Fri, 9 Sep 2011 09:56:35 -0300 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Fri, Sep 09, 2011 at 01:12:51AM +0800, Liu, Jinsong wrote:
> >>> --- a/arch/x86/include/asm/msr-index.h
> >>> +++ b/arch/x86/include/asm/msr-index.h
> >>> @@ -229,6 +229,8 @@
> >>> #define MSR_IA32_APICBASE_ENABLE (1<<11)
> >>> #define MSR_IA32_APICBASE_BASE (0xfffff<<12)
> >>>
> >>> +#define MSR_IA32_TSCDEADLINE 0x000006e0
> >>> +
> >>> #define MSR_IA32_UCODE_WRITE 0x00000079
> >>> #define MSR_IA32_UCODE_REV 0x0000008b
> >>
> >> Need to add to msrs_to_save so live migration works.
> >
> > MSR must be explicitly listed in qemu, also.
> >
>
> Marcelo, seems MSR don't need explicitly list in qemu?
> KVM side adding MSR_IA32_TSCDEADLINE to msrs_to_save is enough. Qemu will get
> it through KVM_GET_MSR_INDEX_LIST.
> Do I miss something?
Notice in target-i386/kvm.c the KVM_GET_MSR_INDEX_LIST list is only used
for MSR_STAR/MSR_HSAVE_PA presence detection.
Do you do need to explicitly add MSR_IA32_TSCDEADLINE to
kvm_get_msrs/kvm_put_msrs routines.
- Re: [Qemu-devel] [PATCH] KVM: emulate lapic tsc deadline timer for hvm, Liu, Jinsong, 2011/09/06
- Re: [Qemu-devel] [PATCH] KVM: emulate lapic tsc deadline timer for hvm, Liu, Jinsong, 2011/09/06
- Re: [Qemu-devel] [PATCH] KVM: emulate lapic tsc deadline timer for hvm, Liu, Jinsong, 2011/09/07
- Re: [Qemu-devel] [PATCH] KVM: emulate lapic tsc deadline timer for hvm, Liu, Jinsong, 2011/09/08
- Re: [Qemu-devel] [PATCH] KVM: emulate lapic tsc deadline timer for hvm,
Marcelo Tosatti <=
- Re: [Qemu-devel] [PATCH] KVM: emulate lapic tsc deadline timer for hvm, Liu, Jinsong, 2011/09/09