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Re: [PATCH] KVM: nVMX: fix MWAIT emulation for guests

From Wanpeng Li <kernellwp@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH] KVM: nVMX: fix MWAIT emulation for guests
Date 2017-05-04 12:50 +0200
Message-ID <tDmuB-2fe-5@gated-at.bofh.it> (permalink)
References <tDloS-1BT-23@gated-at.bofh.it> <tDmkV-2bM-1@gated-at.bofh.it>
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2017-05-04 18:37 GMT+08:00 Paolo Bonzini <pbonzini@redhat.com>:
>
>
> On 04/05/2017 11:37, Wanpeng Li wrote:
>>
>> The kvm-unit-tests/vmx.flat fails against instruction(mwait) intercept test.
>>
>> Test suite: instruction intercept
>> Unhandled exception 13 #GP at ip 0000000000402397
>> error_code=0000      rflags=00010012      cs=00000008
>> rax=0000000000000000 rcx=0000000004006172 rdx=0000000000402397 rbx=000000000041427d
>> rbp=0000000007ff8fdf rsi=0000000000000000 rdi=0000000000000004
>>  r8=000000000000000a  r9=00000000000003f8 r10=0000000000000000 r11=0000000000000000
>>  r12=0000000000000000 r13=0000000000000000 r14=0000000000000000 r15=0000000000000000
>> cr0=0000000080010031 cr2=0000000000000000 cr3=0000000007fff000 cr4=0000000000002020
>> cr8=0000000000000000
>>       STACK: @402397 401102 400459
>
> The problem is simply that the tests were not clearing eax/ecx/edx.

You are right, thanks for pointing out this. :)

Regards,
Wanpeng Li

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Thread

[PATCH] KVM: nVMX: fix MWAIT emulation for guests Wanpeng Li <kernellwp@gmail.com> - 2017-05-04 11:40 +0200
  Re: [PATCH] KVM: nVMX: fix MWAIT emulation for guests Alexander Graf <agraf@suse.de> - 2017-05-04 11:50 +0200
  Re: [PATCH] KVM: nVMX: fix MWAIT emulation for guests Paolo Bonzini <pbonzini@redhat.com> - 2017-05-04 12:40 +0200
    Re: [PATCH] KVM: nVMX: fix MWAIT emulation for guests Wanpeng Li <kernellwp@gmail.com> - 2017-05-04 12:50 +0200

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