linux-kernel - Re: [PATCH 0/2] KVM: x86: Fix dirty logging of emulated atomics

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Date: Fri, 16 Feb 2024 17:02:29 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	David Matlack <dmatlack@...gle.com>, Pasha Tatashin <tatashin@...gle.com>, 
	Michael Krebs <mkrebs@...gle.com>
Subject: Re: [PATCH 0/2] KVM: x86: Fix dirty logging of emulated atomics

On Wed, 14 Feb 2024 17:00:02 -0800, Sean Christopherson wrote:
> Fix a bug in KVM's emulator where the target page of an atomic write isn't
> marked dirty, and enhance the dirty_log_test selftest to serve as
> a regression test by conditionally doing forced emulation of guest writes.
> 
> Note, the selftest depends on several patches that are sitting in
> `kvm-x86 pmu`, so I'll likely take the selftest through that branch (eww).
> 
> [...]

Applied the fix itself to kvm-x86 fixes, I'll follow up with a heftier version
of the selftest patch for 6.9.

[1/2] KVM: x86: Mark target gfn of emulated atomic instruction as dirty
      https://github.com/kvm-x86/linux/commit/910c57dfa4d1

--
https://github.com/kvm-x86/linux/tree/next