From: Avi Kivity <avi@redhat.com>
To: Alexander Graf <agraf@suse.de>
Cc: "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"joerg.roedel@amd.com" <joerg.roedel@amd.com>
Subject: Re: [PATCH 4/6] Implement Hyper-V MSRs
Date: Sun, 17 May 2009 23:00:13 +0300 [thread overview]
Message-ID: <4A106CCD.10903@redhat.com> (raw)
In-Reply-To: <59A0ED05-7A6B-4932-BA04-836D1E65350C@suse.de>
Alexander Graf wrote:
>>> case MSR_VM_CR:
>>> + case 0x40000081:
>>> *data = 0;
>>> break;
>>>
>>
>> This probably is a Hyper-V MSR, but I don't see how it expects it to
>> be present in real hardware. Are you sure this is really needed?
>
> Well hyper-v just crashes/reboots if it get a #gp on that msr, so I
> suppose yes.
This is suspicious. It won't get this MSR on real hardware.
Maybe this was with cpuid.hypervisor enabled?
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2009-05-17 20:00 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-15 8:22 [PATCH 0/6] Add rudimentary Hyper-V guest support Alexander Graf
2009-05-15 8:22 ` [PATCH 1/6] Add definition for IGNNE MSR Alexander Graf
2009-05-15 8:22 ` [PATCH 2/6] MMU: don't bail on PAT bits in PTE Alexander Graf
2009-05-15 8:22 ` [PATCH 3/6] Emulator: Inject #PF when page was not found Alexander Graf
2009-05-15 8:22 ` [PATCH 4/6] Implement Hyper-V MSRs Alexander Graf
2009-05-15 8:22 ` [PATCH 5/6] Nested SVM: Implement INVLPGA Alexander Graf
2009-05-15 8:22 ` [PATCH 6/6] Nested SVM: Improve interrupt injection Alexander Graf
2009-05-17 6:48 ` Gleb Natapov
2009-05-17 8:10 ` Alexander Graf
2009-05-18 11:47 ` Alexander Graf
2009-05-15 13:43 ` [PATCH 5/6] Nested SVM: Implement INVLPGA Joerg Roedel
2009-05-17 20:02 ` Avi Kivity
2009-05-17 20:03 ` Avi Kivity
2009-05-18 18:46 ` Marcelo Tosatti
2009-05-18 13:00 ` Alexander Graf
2009-05-17 9:54 ` [PATCH 4/6] Implement Hyper-V MSRs Avi Kivity
2009-05-17 19:57 ` Alexander Graf
2009-05-17 20:00 ` Avi Kivity [this message]
2009-05-17 20:27 ` Alexander Graf
2009-05-17 20:37 ` Alexander Graf
2009-05-15 13:40 ` [PATCH 3/6] Emulator: Inject #PF when page was not found Joerg Roedel
2009-05-17 19:59 ` Avi Kivity
2009-05-17 20:25 ` Alexander Graf
2009-05-17 20:58 ` Avi Kivity
2009-05-18 12:55 ` Alexander Graf
2009-05-15 10:25 ` [PATCH 2/6] MMU: don't bail on PAT bits in PTE Michael S. Tsirkin
2009-05-15 10:53 ` Alexander Graf
2009-05-15 13:19 ` Joerg Roedel
2009-05-17 9:51 ` Avi Kivity
2009-05-15 10:47 ` [PATCH 0/6] Add rudimentary Hyper-V guest support Alexander Graf
2009-05-17 21:08 ` Avi Kivity
2009-05-18 12:45 ` Alexander Graf
2009-05-18 13:29 ` Avi Kivity
2009-05-18 13:35 ` Alexander Graf
2009-05-18 13:44 ` Avi Kivity
2009-05-18 15:15 ` Alexander Graf
2009-05-18 15:20 ` Avi Kivity
2009-05-18 15:24 ` Alexander Graf
2009-05-18 15:28 ` Avi Kivity
2009-05-18 15:32 ` Alexander Graf
2009-05-18 15:35 ` Avi Kivity
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