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Re: [Qemu-devel] [PATCH 2/2 V2] qemu-kvm: fix improper nmi emulation


From: Jan Kiszka
Subject: Re: [Qemu-devel] [PATCH 2/2 V2] qemu-kvm: fix improper nmi emulation
Date: Fri, 14 Oct 2011 07:53:06 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666

On 2011-10-14 02:53, Lai Jiangshan wrote:
> 
>>
>> As explained in some other mail, we could then emulate the missing
>> kernel feature by reading out the current in-kernel APIC state, testing
>> if LINT1 is unmasked, and then delivering the NMI directly.
>>
> 
> Only the thread of the VCPU can safely get the in-kernel LAPIC states,
> so this approach will cause some troubles.

run_on_cpu() can help.

Jan

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