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Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE s
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE support |
Date: |
Wed, 8 Jun 2016 13:32:24 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.0 |
On 03/06/2016 17:57, Radim Krčmář wrote:
>> > + cenv->msr_ia32_feature_control |=
>> > + MSR_IA32_FEATURE_CONTROL_LMCE |
>> > + MSR_IA32_FEATURE_CONTROL_LOCKED;
> Locking right from the start breaks nested KVM, because nested relies on
> setting VMXON feature from inside of the guest.
>
> Do we keep it unlocked, or move everything into QEMU?
>
> (The latter seems simpler.)
I think it should be moved into the firmware, with QEMU publishing the
desired setting via fw_cfg. The same as what is done in real hardware,
that's the KVM mantra. :)
For v4 it's okay to just remove this.
Paolo
- [Qemu-devel] [PATCH v3 0/2] Add QEMU support for Intel local MCE, Haozhong Zhang, 2016/06/03
- [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE support, Haozhong Zhang, 2016/06/03
- Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE support, Radim Krčmář, 2016/06/03
- Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE support, Haozhong Zhang, 2016/06/05
- Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE support,
Paolo Bonzini <=
- Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE support, Haozhong Zhang, 2016/06/13
- Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE support, Paolo Bonzini, 2016/06/13
- Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE support, Haozhong Zhang, 2016/06/13
- Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE support, Paolo Bonzini, 2016/06/13
- Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE support, Haozhong Zhang, 2016/06/13
Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE support, Boris Petkov, 2016/06/04
Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel LMCE support, Boris Petkov, 2016/06/04