From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1C70BCD37B0 for ; Mon, 18 Sep 2023 17:14:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231274AbjIRRO5 (ORCPT ); Mon, 18 Sep 2023 13:14:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41968 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231414AbjIRROx (ORCPT ); Mon, 18 Sep 2023 13:14:53 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 864B55FCF; Mon, 18 Sep 2023 09:10:12 -0700 (PDT) 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:Cc:To:From:Subject:Message-ID:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=6Nm7HFeQaWGkG0LmLk96FaX4LQaVLrNlxbVbe1pBL/Q=; b=sGqrcr327noY4lfSS9+6nXUGHQ 99GRK812HfxCD4yCnZTjF+CmXMAymR6eGAuFZVepOSW4yDquXzTTBeahhRLKf+wHBolINv+Sk4vsQ w12H7poskIdqHqeAfh8OSxug86I7HE/Qu19XdHP3PulYzxwhvpUod06Do8a8zOtodFNz2Qas9YU+n TJaCCGUFLViKuHH5ync82lCTm/WpTv8QEuKq6QAxmcCgPb/lh+rXjjND2ZLO9jo6alrm1m/g8oMly 7YMH/6EOCQZF7mIo2CjIGxqMTAfNjONUe34JY4K1MgOotneZiLDKWeOH7lAnt1+VnHN3Z8qIhoEpg VfPh2V3A==; Received: from [2001:8b0:10b:5:7930:9714:474a:dcad] (helo=u3832b3a9db3152.ant.amazon.com) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1qiGp8-00BvpD-S3; Mon, 18 Sep 2023 16:10:10 +0000 Message-ID: <5787ee4cc9b2a3aab21c0cf052d4508e34b8690d.camel@infradead.org> Subject: Re: [PATCH v3 12/13] KVM: selftests / xen: don't explicitly set the vcpu_info address From: David Woodhouse To: Paul Durrant , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Paul Durrant , Sean Christopherson , Paolo Bonzini Date: Mon, 18 Sep 2023 17:10:10 +0100 In-Reply-To: <20230918144111.641369-13-paul@xen.org> References: <20230918144111.641369-1-paul@xen.org> <20230918144111.641369-13-paul@xen.org> Content-Type: multipart/signed; micalg="sha-256"; protocol="application/pkcs7-signature"; boundary="=-R1F+OKKZJUmf7U+cz7EO" User-Agent: Evolution 3.44.4-0ubuntu2 MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-R1F+OKKZJUmf7U+cz7EO Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, 2023-09-18 at 14:41 +0000, Paul Durrant wrote: > From: Paul Durrant >=20 > If the vCPU id is set and the shared_info is mapped using HVA then we can > infer that KVM has the ability to use a default vcpu_info mapping. Hence > we can stop setting the address of the vcpu_info structure. >=20 > NOTE: We still explicitly set vcpu_info half way through testing (to poin= t > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 at exactly the place it already is) to mak= e sure that setting the > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 attribute does not fail. >=20 > Signed-off-by: Paul Durrant Reviewed-by: David Woodhouse --=-R1F+OKKZJUmf7U+cz7EO Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCEkQw ggYQMIID+KADAgECAhBNlCwQ1DvglAnFgS06KwZPMA0GCSqGSIb3DQEBDAUAMIGIMQswCQYDVQQG EwJVUzETMBEGA1UECBMKTmV3IEplcnNleTEUMBIGA1UEBxMLSmVyc2V5IENpdHkxHjAcBgNVBAoT FVRoZSBVU0VSVFJVU1QgTmV0d29yazEuMCwGA1UEAxMlVVNFUlRydXN0IFJTQSBDZXJ0aWZpY2F0 aW9uIEF1dGhvcml0eTAeFw0xODExMDIwMDAwMDBaFw0zMDEyMzEyMzU5NTlaMIGWMQswCQYDVQQG 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