Received: by 2002:a05:6358:45e:b0:b5:b6eb:e1f9 with SMTP id 30csp809076rwe; Wed, 31 Aug 2022 11:21:48 -0700 (PDT) X-Google-Smtp-Source: AA6agR4DcZQFpHchZk1srnd+JeNV7ubDujuX0XZOI4gEN/DT6ELs/SpiuBkfWoT7NWoMHcnHkqrR X-Received: by 2002:a17:907:2e01:b0:730:9ecc:cd28 with SMTP id ig1-20020a1709072e0100b007309ecccd28mr20536820ejc.360.1661970108607; Wed, 31 Aug 2022 11:21:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1661970108; cv=none; d=google.com; s=arc-20160816; b=Z444d82fbieshzDH4Iv5VP8iUhESmNZEw4CZ+zeGZbj6iHio1lv2d8hoE6gkbOyhtW gVxl540Xwajrsweb+mCaf/CdgdOTQGTEf6Gx51XZ3zBcLnSx4mb6AMD8vBW78O1TKdMl gYoyZZN5TFjiGYa+Tz2WE4nIVieyGKje38XsHft4561zQHap8V2hZzoDTH4hXIFPyvwt sdjKXk8alPYEPFaSsbvU+TMP6v4SZ6ONHSLliHVofnwKgpWJaLqdLhrnCHcf7aIbcOtZ Hea3WJhtT3G9ILrP4wwTHxSOrpPvxqIiVNr1f3LYMuKU/8iKnPoEiJYjq3dHYTwEX6pU swCg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:date:cc:to:from:subject :message-id:dkim-signature; bh=Rk0SIObkGc/OzoHqCX/ztgHsCZlml4ew8HfMbq2hEx8=; b=psSDwbL/p+wcbR62okJwlTS95vMYWkKvS+VvncfZGZrMn0TSmE9Ke/X/xLbhA2LFYB HO/BucOhF8/L64IBvuN3b/uuDyslq4f7QZHMhdWPRyrlGye3FCILbnXyeartjKvWMcS3 b1yuLK/D+aM0TARJmzzmP3XWlyHfvwV/eOSg8wIGdrspq6wA2kmGJa+IfVEv2J2Mu/Ll mL5ZE/2yNHdfj6gccFMAC+5VxJbUgvpXlI/ixx+UzWiM3GTS+P6yJQrXjl3KeAMRgGV4 upix0RP3F343pqgrjrLQkkwaBzcYF1I4ZhPLbPEjR9qlNQG/V3W+ng0ziCljoPP8vWIS +VBQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=HUBf2UMv; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id b18-20020a056402279200b00447d3d95e3dsi5558957ede.492.2022.08.31.11.21.22; Wed, 31 Aug 2022 11:21:48 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=HUBf2UMv; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231912AbiHaSBw (ORCPT + 99 others); Wed, 31 Aug 2022 14:01:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33142 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231845AbiHaSBr (ORCPT ); Wed, 31 Aug 2022 14:01:47 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 26009C6FF0 for ; Wed, 31 Aug 2022 11:01:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1661968905; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Rk0SIObkGc/OzoHqCX/ztgHsCZlml4ew8HfMbq2hEx8=; b=HUBf2UMv9x0ydgDtWwel1wYn55EZANCjDtWFGJMDCfH+nNWNi4qNBqQ5QNyPK/H1bSR1B/ 7qiFO8+sKoEmCmScr1danzQN5ZHxzjADqrRPwtxpXzNaFvAS52lE5xvFK2iIhfgPf9/wfh c3PK88WgzkPZt3P0Rbo2fv/UfuqAnV4= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-393-9aXchQ55PFKabLqbci9nsA-1; Wed, 31 Aug 2022 14:01:42 -0400 X-MC-Unique: 9aXchQ55PFKabLqbci9nsA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7D016294EDE3; Wed, 31 Aug 2022 18:01:41 +0000 (UTC) Received: from starship (unknown [10.40.194.96]) by smtp.corp.redhat.com (Postfix) with ESMTP id AC928C15BB3; Wed, 31 Aug 2022 18:01:39 +0000 (UTC) Message-ID: <30eee80130339f31847caa9fc0aa79999c0902d5.camel@redhat.com> Subject: Re: [PATCH 03/19] Revert "KVM: SVM: Introduce hybrid-AVIC mode" From: Maxim Levitsky To: Jim Mattson Cc: Sean Christopherson , Paolo Bonzini , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Suravee Suthikulpanit , Li RongQing Date: Wed, 31 Aug 2022 21:01:38 +0300 In-Reply-To: References: <20220831003506.4117148-1-seanjc@google.com> <20220831003506.4117148-4-seanjc@google.com> <17e776dccf01e03bce1356beb8db0741e2a13d9a.camel@redhat.com> <84c2e836d6ba4eae9fa20329bcbc1d19f8134b0f.camel@redhat.com> <59206c01da236c836c58ff96c5b4123d18a28b2b.camel@redhat.com> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.36.5 (3.36.5-2.fc32) MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.85 on 10.11.54.8 X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2022-08-31 at 10:58 -0700, Jim Mattson wrote: > On Wed, Aug 31, 2022 at 10:49 AM Maxim Levitsky wrote: > > > In this case I say that there is no wiggle room for KVM to not allow different APIC bases > > on each CPU - the spec 100% allows it, but in KVM it is broken. > > This would actually be my first candidate for > Documentation/virt/kvm/x86/errata.rst! > 100% agree. Best regards, Maxim Levitsky