From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="q8AqtD05" Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ECDAD19E; Tue, 21 Nov 2023 13:50:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=MIME-Version:Content-Type:References: In-Reply-To:Date:To:From:Subject:Message-ID:Sender:Reply-To:Cc: Content-Transfer-Encoding:Content-ID:Content-Description; bh=tR6u49LQ1LBhM925V/eXh7AlqbxrgxNMGgBmHoJqNsA=; b=q8AqtD05udavs43p3x+GJBnGlL VBYJjP3FGtNBkN4lj2p+k1L9ArjLfxAfovzbDJhIVA/RVEX4gdFWyKUs2p3fZG8yMP3OYrSBfEAcq KK2HIhWxvAZnWuXXlrwZ6OYNh1qh0rLeTm2Q83IFDdjqe3RmlS/jVEJKqV3toDMsuWwTSSAaC20iY e6qVcFpUiTj4wCV43sVDMez3DNCtPV9y/dEAo9si0LysLUWB3Vigul6unfNoHJ1kDXmA9cgIHfYvp chl9tg0xMzs3W9yKXtXHuKl0yAl/wQ0A+WovRcyrRVNp/aOJVFPKZ2npXGgUI7gAEifOmYlgLcG/r M004/28A==; Received: from [2001:8b0:10b:5:22b8:d80f:1c9c:f188] (helo=u3832b3a9db3152.ant.amazon.com) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1r5Ycz-005xpi-Ao; Tue, 21 Nov 2023 21:49:53 +0000 Message-ID: Subject: Re: [PATCH v8 03/15] KVM: xen: mark guest pages dirty with the pfncache lock held From: David Woodhouse To: Paul Durrant , Sean Christopherson , Paolo Bonzini , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Date: Tue, 21 Nov 2023 21:49:52 +0000 In-Reply-To: <20231121180223.12484-4-paul@xen.org> References: <20231121180223.12484-1-paul@xen.org> <20231121180223.12484-4-paul@xen.org> Content-Type: multipart/signed; micalg="sha-256"; protocol="application/pkcs7-signature"; boundary="=-abamlw54pBPXz+RrOZFU" User-Agent: Evolution 3.44.4-0ubuntu2 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html --=-abamlw54pBPXz+RrOZFU Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, 2023-11-21 at 18:02 +0000, Paul Durrant wrote: > From: Paul Durrant >=20 > Sampling gpa and memslot from an unlocked pfncache may yield inconsistent > values so, since there is no problem with calling mark_page_dirty_in_slot= () > with the pfncache lock held, relocate the calls in > kvm_xen_update_runstate_guest() and kvm_xen_inject_pending_events() > accordingly. >=20 > Signed-off-by: Paul Durrant Reviewed-by: David Woodhouse --=-abamlw54pBPXz+RrOZFU Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCEkQw ggYQMIID+KADAgECAhBNlCwQ1DvglAnFgS06KwZPMA0GCSqGSIb3DQEBDAUAMIGIMQswCQYDVQQG EwJVUzETMBEGA1UECBMKTmV3IEplcnNleTEUMBIGA1UEBxMLSmVyc2V5IENpdHkxHjAcBgNVBAoT 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