linux-kernel - Re: [PATCH 0/3] KVM: x86: replace kvm_vcpu

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Message-ID: <Y9QjquvzoL7kKHWE@google.com>
Date:   Fri, 27 Jan 2023 19:19:06 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     David Stevens <stevensd@...omium.org>
Cc:     David Woodhouse <dwmw@...zon.co.uk>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] KVM: x86: replace kvm_vcpu_map usage in vmx

On Fri, Jan 27, 2023, David Stevens wrote:
> From: David Stevens <stevensd@...omium.org>
> 
> This series replaces the usage of kvm_vcpu_map in vmx with
> gfn_to_pfn_cache. See [1] for details on why kvm_vcpu_map is broken.
> 
> The presence of kvm_vcpu_map blocks another series I would like to
> try to merge [2]. Although I'm not familiar with the internals of vmx,
> I've gone ahead and taken a stab at this cleanup. I've done some manual
> testing with nested VMs, and KVM selftests pass, but thorough feedback
> would be appreciated. Once this cleanup is done, I'll take a look at
> removing kvm_vcpu_map from svm.

Woot, been waiting for someone to take this one, thanks!  It'll likely be a week
or two until I get 'round to this, but it's definitely something I want to get
merged sooner than later.