From: Marcelo Tosatti <mtosatti@redhat.com>
To: "Liu, Jinsong" <jinsong.liu@intel.com>
Cc: Avi Kivity <avi@redhat.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [PATCH] KVM: emulate lapic tsc deadline timer for hvm
Date: Fri, 9 Sep 2011 09:56:35 -0300 [thread overview]
Message-ID: <20110909125635.GA10198@amt.cnet> (raw)
In-Reply-To: <BC00F5384FCFC9499AF06F92E8B78A9E24C6E20682@shsmsx502.ccr.corp.intel.com>
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.
next prev parent reply other threads:[~2011-09-09 12:56 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-17 4:19 [Qemu-devel] [PATCH] KVM: emulate lapic tsc deadline timer for hvm Liu, Jinsong
2011-08-22 9:18 ` Avi Kivity
2011-08-23 10:47 ` Marcelo Tosatti
2011-08-29 6:47 ` Tian, Kevin
2011-09-06 11:21 ` Liu, Jinsong
2011-09-08 17:12 ` Liu, Jinsong
2011-09-09 12:56 ` Marcelo Tosatti [this message]
2011-09-09 18:11 ` Liu, Jinsong
2011-09-09 18:36 ` Marcelo Tosatti
2011-09-09 18:47 ` Liu, Jinsong
2011-09-09 18:21 ` Liu, Jinsong
2011-09-06 11:18 ` Liu, Jinsong
2011-09-06 11:26 ` Avi Kivity
2011-09-07 16:45 ` Liu, Jinsong
2011-09-07 17:06 ` Avi Kivity
2011-09-07 17:33 ` Liu, Jinsong
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