linux-kernel - Re: [PATCH 0/2] nVMX: Ensure host's PAT stays sane

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Date: Tue, 11 Jun 2024 18:18:40 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>
Cc: linux-kernel@...r.kernel.org, Xiangfei Ma <xiangfeix.ma@...el.com>, 
	Yan Zhao <yan.y.zhao@...el.com>
Subject: Re: [PATCH 0/2] nVMX: Ensure host's PAT stays sane

On Wed, 05 Jun 2024 15:45:25 -0700, Sean Christopherson wrote:
> Fix a bug(s) where test_load_host_pat clobbers PAT and causes all
> subsequent tests to effectively run with all memory mapped as UC.  Xiangfei
> first noticed that this caused rdtsc_vmexit_diff_test to fail, but it can
> also lead to timeouts if more tests are added, i.e. if more stuff runs after
> test_load_host_pat.
> 
> Sean Christopherson (2):
>   nVMX: Ensure host's PAT is loaded at the end of all VMX tests
>   nVMX: Verify KVM actually loads the value in HOST_PAT into the PAT MSR
> 
> [...]

Applied to kvm-x86 next, thanks!

[1/2] nVMX: Ensure host's PAT is loaded at the end of all VMX tests
      https://github.com/kvm-x86/kvm-unit-tests/commit/8cbb8d3cbca9
[2/2] nVMX: Verify KVM actually loads the value in HOST_PAT into the PAT MSR
      https://github.com/kvm-x86/kvm-unit-tests/commit/d31433807f2b

--
https://github.com/kvm-x86/kvm-unit-tests/tree/next