linux-kernel - Re: [PATCH v2 00/27] drm/i915/gvt: KVM: KVMGT fixes and page-track cleanups

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Date:   Mon, 13 Mar 2023 17:58:08 +0800
From:   Yan Zhao <yan.y.zhao@...el.com>
To:     Sean Christopherson <seanjc@...gle.com>
CC:     Paolo Bonzini <pbonzini@...hat.com>,
        Zhenyu Wang <zhenyuw@...ux.intel.com>,
        Zhi Wang <zhi.a.wang@...el.com>, <kvm@...r.kernel.org>,
        <intel-gfx@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        Ben Gardon <bgardon@...gle.com>,
        <intel-gvt-dev@...ts.freedesktop.org>
Subject: Re: [PATCH v2 00/27] drm/i915/gvt: KVM: KVMGT fixes and page-track
 cleanups

On Fri, Mar 10, 2023 at 04:22:31PM -0800, Sean Christopherson wrote:
> Fix a variety of found-by-inspection bugs in KVMGT, and overhaul KVM's
> page-track APIs to provide a leaner and cleaner interface.  The motivation
> for this series is to (significantly) reduce the number of KVM APIs that
> KVMGT uses, with a long-term goal of making all kvm_host.h headers
> KVM-internal.
> 
> As was the case in v1, tThe KVMGT changes are compile tested only.
> 
> Based on "git://git.kernel.org/pub/scm/virt/kvm/kvm.git next".
> 
> v2:
>  - Reuse vgpu_lock to protect gfn hash instead of introducing a new (and
>    buggy) mutext. [Yan]
>  - Remove a spurious return from kvm_page_track_init(). [Yan]
>  - Take @kvm directly in the inner __kvm_page_track_write(). [Yan]
>  - Delete the gfn sanity check that relies on kvm_is_visible_gfn() instead
>    of providing a dedicated interface. [Yan]
> 
> base-commit: 45dd9bc75d9adc9483f0c7d662ba6e73ed698a0b
> -- 
Thanks for the update!
It passed basic tests (gvt in a single vm) at my side.
Will do detailed review tomorrow.

Thanks
Yan