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 X-Spam-Level: X-Spam-Status: No, score=-17.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E04B4C433EF for ; Thu, 23 Sep 2021 15:15:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C09A161029 for ; Thu, 23 Sep 2021 15:15:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241956AbhIWPRP (ORCPT ); Thu, 23 Sep 2021 11:17:15 -0400 Received: from smtp-out1.suse.de ([195.135.220.28]:36242 "EHLO smtp-out1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241870AbhIWPRL (ORCPT ); Thu, 23 Sep 2021 11:17:11 -0400 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id A87422213F; Thu, 23 Sep 2021 15:15:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1632410138; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=qiutPdaDUEQ53OVxPbWUI57eHOHJmixSloo1uUtF/HQ=; b=b9q3+E8fNtxbq9TBJSjcVGQBGVgDFmEOCzxIbLRb2xZyHQyeykuPcz01tn6d7lMZTxdv5G otsWgjFiqMP8zmhQALXwc5D0vgk024l+hgpVZRsmCmrq1S4r6w/cP84VG959dTtWL1/dUe nbNhFNbN/Z/kERDW8Z8CCE4yvzTG510= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 70AF013E6E; Thu, 23 Sep 2021 15:15:38 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id jxU6GRqaTGG1CQAAMHmgww (envelope-from ); Thu, 23 Sep 2021 15:15:38 +0000 Subject: Re: [PATCH 7/9] xen/x86: hook up xen_banner() also for PVH To: Jan Beulich Cc: Stefano Stabellini , lkml , "xen-devel@lists.xenproject.org" , Boris Ostrovsky References: <4efa804e-3250-227f-00c7-347581366cd4@suse.com> <5af11027-cf9d-cf78-9f48-b2ce2edd6e62@suse.com> <2ded8c58-b9c3-89dc-6883-1794d1c4126a@suse.com> From: Juergen Gross Message-ID: <89cb2d39-2bfc-dccf-8e92-39e4e952750d@suse.com> Date: Thu, 23 Sep 2021 17:15:37 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="eB5LX1qkXLLfbcP2eMLtht3bzL22XkEnp" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --eB5LX1qkXLLfbcP2eMLtht3bzL22XkEnp Content-Type: multipart/mixed; boundary="mh2JNQMn8SCSb66PUXlECvaGtLWicgkYR"; protected-headers="v1" From: Juergen Gross To: Jan Beulich Cc: Stefano Stabellini , lkml , "xen-devel@lists.xenproject.org" , Boris Ostrovsky Message-ID: <89cb2d39-2bfc-dccf-8e92-39e4e952750d@suse.com> Subject: Re: [PATCH 7/9] xen/x86: hook up xen_banner() also for PVH References: <4efa804e-3250-227f-00c7-347581366cd4@suse.com> <5af11027-cf9d-cf78-9f48-b2ce2edd6e62@suse.com> <2ded8c58-b9c3-89dc-6883-1794d1c4126a@suse.com> In-Reply-To: --mh2JNQMn8SCSb66PUXlECvaGtLWicgkYR Content-Type: multipart/mixed; boundary="------------8709DC3FBC915280D9627895" Content-Language: en-US This is a multi-part message in MIME format. --------------8709DC3FBC915280D9627895 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable On 23.09.21 17:10, Jan Beulich wrote: > On 23.09.2021 16:59, Juergen Gross wrote: >> On 07.09.21 12:11, Jan Beulich wrote: >>> This was effectively lost while dropping PVHv1 code. Move the functio= n >>> and arrange for it to be called the same way as done in PV mode. Clea= rly >>> this then needs re-introducing the XENFEAT_mmu_pt_update_preserve_ad >>> check that was recently removed, as that's a PV-only feature. >>> >>> Signed-off-by: Jan Beulich >>> >>> --- a/arch/x86/xen/enlighten.c >>> +++ b/arch/x86/xen/enlighten.c >>> @@ -261,6 +261,18 @@ int xen_vcpu_setup(int cpu) >>> return ((per_cpu(xen_vcpu, cpu) =3D=3D NULL) ? -ENODEV : 0); >>> } >>> =20 >>> +void __init xen_banner(void) >>> +{ >>> + unsigned version =3D HYPERVISOR_xen_version(XENVER_version, NULL); >>> + struct xen_extraversion extra; >> >> Please add a blank line here. >=20 > Oops. >=20 >>> + HYPERVISOR_xen_version(XENVER_extraversion, &extra); >>> + >>> + pr_info("Booting paravirtualized kernel on %s\n", pv_info.name); >> >> Is this correct? I don't think the kernel needs to be paravirtualized >> with PVH (at least not to the same extend as for PV). >=20 > What else do you suggest the message to say? Simply drop > "paravirtualized"? To some extent it is applicable imo, further > qualified by pv_info.name. And that's how it apparently was with > PVHv1. The string could be selected depending on CONFIG_XEN_PV. 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