Re: [PATCH v2 3/6] kvm: x86: Emulate split-lock access as a write

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Subject: Re: [PATCH v2 3/6] kvm: x86: Emulate split-lock access as a write
From: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Date: Thu, 12 Mar 2020 16:00:40 +0100
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxxxxxx>, x86@xxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, David Laight <David.Laight@xxxxxxxxxx>
In-reply-to: <18333d32-9ec4-4aee-8c58-b2f44bb8e83d@intel.com>
References: <20200203151608.28053-1-xiaoyao.li@intel.com> <20200203151608.28053-4-xiaoyao.li@intel.com> <95d29a81-62d5-f5b6-0eb6-9d002c0bba23@redhat.com> <878sl945tj.fsf@nanos.tec.linutronix.de> <d690c2e3-e9ef-a504-ede3-d0059ec1e0f6@redhat.com> <20200227001117.GX9940@linux.intel.com> <18333d32-9ec4-4aee-8c58-b2f44bb8e83d@intel.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0

On 12/03/20 12:42, Xiaoyao Li wrote:
>> I completely agree that poorly emulating the instruction from the 
>> (likely) malicious guest is a hack, but it's a simple and easy to
>> maintain hack.
> 
> What's your opinion about above?

That's okay, I suppose.

Paolo

References:
- [PATCH v2 0/6] kvm/split_lock: Add feature split lock detection support in kvm
  - From: Xiaoyao Li
- [PATCH v2 3/6] kvm: x86: Emulate split-lock access as a write
  - From: Xiaoyao Li
- Re: [PATCH v2 3/6] kvm: x86: Emulate split-lock access as a write
  - From: Paolo Bonzini
- Re: [PATCH v2 3/6] kvm: x86: Emulate split-lock access as a write
  - From: Thomas Gleixner
- Re: [PATCH v2 3/6] kvm: x86: Emulate split-lock access as a write
  - From: Paolo Bonzini
- Re: [PATCH v2 3/6] kvm: x86: Emulate split-lock access as a write
  - From: Sean Christopherson
- Re: [PATCH v2 3/6] kvm: x86: Emulate split-lock access as a write
  - From: Xiaoyao Li

Prev by Date: RE: [PATCH v4 2/5] x86/hyper-v: Add synthetic debugger definitions
Next by Date: [kvm-unit-tests PATCH v3 00/12] KVM: arm64: PMUv3 Event Counter Tests
Previous by thread: Re: [PATCH v2 3/6] kvm: x86: Emulate split-lock access as a write
Next by thread: [PATCH v2 4/6] kvm: vmx: Extend VMX's #AC handding for split lock in guest
Index(es):
- Date
- Thread

[Index of Archives] [KVM ARM] [KVM ia64] [KVM ppc] [Virtualization Tools] [Spice Development] [Libvirt] [Libvirt Users] [Linux USB Devel] [Linux Audio Users] [Yosemite Questions] [Linux Kernel] [Linux SCSI] [XFree86]