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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id C922CCDB482 for ; Mon, 16 Oct 2023 15:14:51 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 44EC46B0092; Mon, 16 Oct 2023 11:14:51 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3FDE86B0164; Mon, 16 Oct 2023 11:14:51 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2C5976B0165; Mon, 16 Oct 2023 11:14:51 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 1CB406B0092 for ; Mon, 16 Oct 2023 11:14:51 -0400 (EDT) Received: from smtpin27.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id E128E160A07 for ; Mon, 16 Oct 2023 15:14:50 +0000 (UTC) X-FDA: 81351671940.27.0B6BB14 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by imf29.hostedemail.com (Postfix) with ESMTP id 7FE9A120030 for ; Mon, 16 Oct 2023 15:14:48 +0000 (UTC) Authentication-Results: imf29.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b="i9vxzWj/"; dmarc=pass (policy=none) header.from=redhat.com; spf=pass (imf29.hostedemail.com: domain of pbonzini@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=pbonzini@redhat.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1697469288; a=rsa-sha256; cv=none; b=iyNl31yYGRXGcOoSwZu7HToAYyFzxuQVtsQErCAjJO6b7N77SdZtabsNAOl/bcU+hnk5Xi kLgFtCDninln3FJNhALkS/7NVMgcbst/7IRgHZE0uJJhP+48qILgOjXswju61hD4XR2NWb RViRoeYpzPuqz0hdwpi5/icm1bS60u4= ARC-Authentication-Results: i=1; imf29.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b="i9vxzWj/"; dmarc=pass (policy=none) header.from=redhat.com; spf=pass (imf29.hostedemail.com: domain of pbonzini@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=pbonzini@redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1697469288; h=from:from:sender: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:dkim-signature; bh=AVbGnTxHIfBxV5ar+uOFvSn31zZCTLwW6peH+riUAMc=; b=fOWwKyh1sb6tu7rmAnHolT2b5e7VJwZGlRfBbIGJLD7X+t7IBYye5i2d96AE28bvUM+okl qIkTPXUzQ3JijHdNWEeMjh+vqb6D5eDrBFbZdfVNzT9tfieIJVba/Mp1HyH17ScDL8dxcc /6Ksu2d3vLcNFsslAq1+PSFMKNubvi8= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1697469287; 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:autocrypt:autocrypt; bh=AVbGnTxHIfBxV5ar+uOFvSn31zZCTLwW6peH+riUAMc=; b=i9vxzWj/BmD9035+xZAkBtMkocLzHwTwIsljUbJoC/D+Sxz90oryDNJN/PMrDNu+7jAdxk otjigqTryXMkX4rHG3iwNCK+xKO8G4TT0y+NgJKDoydej0FwOEJGFYJVHP47d+UjeYPsaW vRYsKQ5EX8oreZRifqliCRVblJfPKeo= Received: from mail-ej1-f72.google.com (mail-ej1-f72.google.com [209.85.218.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-617-omVPPw8BO-C-OrWwrZYa3A-1; Mon, 16 Oct 2023 11:14:45 -0400 X-MC-Unique: omVPPw8BO-C-OrWwrZYa3A-1 Received: by mail-ej1-f72.google.com with SMTP id a640c23a62f3a-99bcb13d8ddso346900466b.0 for ; Mon, 16 Oct 2023 08:14:45 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697469284; x=1698074084; h=content-transfer-encoding:in-reply-to:autocrypt:from:references:cc :to:content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=AVbGnTxHIfBxV5ar+uOFvSn31zZCTLwW6peH+riUAMc=; b=HbAW8wWU+pSHZm0TPlywcvxUDc2Ylixl0cWPo0zNEApopCVnfEhOaNosKVyRuY2c0Z IgcL7NY1RKIkwJ92T9tBpkm96rhhFXKv31JqfkmSVdRPF/1Yh1DKK0Seae+qfE2cDmxB V4zjBaJ0kCPdjrEmCOnB6vATVVkcX1NKvvfxWlZ5WuPIb148NEiFVNTzhb2kjH6utbfD AZ+BcqGB1V7bfRYlM7X6jhYJlPj1L+CWSTqc/ygv+jat2pgjs9ZvGN8UeX0nXdeuVmr8 8xcToRwjuRmOu4syeW5Y4SCLRhPNY4yPlf8d84RPUOOwWPO9pZZyzFmNDJBEu28omyGt Y7qQ== X-Gm-Message-State: AOJu0Yx+JQxQXyjQ9VDOYDKECnvVWVq1iuPVtZD153PY7L05e1qkV7HC qY2ilmVTpkvAn5/wbvua4qOgy+9EmXg8aZDs68utUw+xvwbzZKXpnCbJlZJ4AjFuAULHC/Lfqur 156V1JpVA4M0= X-Received: by 2002:a17:906:c10e:b0:9bf:d70b:986d with SMTP id do14-20020a170906c10e00b009bfd70b986dmr3683342ejc.77.1697469284446; Mon, 16 Oct 2023 08:14:44 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGHQjVoOl0YMVhdZjG5b09PwEKWF6Tm2BoXsM+VWMJkqKeR48ZJzib+4YYClZrMCFNdROzIVg== X-Received: by 2002:a17:906:c10e:b0:9bf:d70b:986d with SMTP id do14-20020a170906c10e00b009bfd70b986dmr3683281ejc.77.1697469284015; Mon, 16 Oct 2023 08:14:44 -0700 (PDT) Received: from ?IPV6:2001:b07:6468:f312:63a7:c72e:ea0e:6045? ([2001:b07:6468:f312:63a7:c72e:ea0e:6045]) by smtp.googlemail.com with ESMTPSA id vb7-20020a170907d04700b0099ccee57ac2sm4209223ejc.194.2023.10.16.08.14.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 16 Oct 2023 08:14:42 -0700 (PDT) Message-ID: <359d7c57-2a71-419d-b63f-4c5610f48b0f@redhat.com> Date: Mon, 16 Oct 2023 17:14:38 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v10 01/50] KVM: SVM: INTERCEPT_RDTSCP is never intercepted anyway To: Greg KH , Michael Roth Cc: kvm@vger.kernel.org, linux-coco@lists.linux.dev, linux-mm@kvack.org, linux-crypto@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, tglx@linutronix.de, mingo@redhat.com, jroedel@suse.de, thomas.lendacky@amd.com, hpa@zytor.com, ardb@kernel.org, seanjc@google.com, vkuznets@redhat.com, jmattson@google.com, luto@kernel.org, dave.hansen@linux.intel.com, slp@redhat.com, pgonda@google.com, peterz@infradead.org, srinivas.pandruvada@linux.intel.com, rientjes@google.com, dovmurik@linux.ibm.com, tobin@ibm.com, bp@alien8.de, vbabka@suse.cz, kirill@shutemov.name, ak@linux.intel.com, tony.luck@intel.com, marcorr@google.com, sathyanarayanan.kuppuswamy@linux.intel.com, alpergun@google.com, jarkko@kernel.org, ashish.kalra@amd.com, nikunj.dadhania@amd.com, pankaj.gupta@amd.com, liam.merwick@oracle.com, zhi.a.wang@intel.com, stable@vger.kernel.org References: <20231016132819.1002933-1-michael.roth@amd.com> <20231016132819.1002933-2-michael.roth@amd.com> <2023101627-species-unscrew-2730@gregkh> From: Paolo Bonzini Autocrypt: addr=pbonzini@redhat.com; keydata= xsEhBFRCcBIBDqDGsz4K0zZun3jh+U6Z9wNGLKQ0kSFyjN38gMqU1SfP+TUNQepFHb/Gc0E2 CxXPkIBTvYY+ZPkoTh5xF9oS1jqI8iRLzouzF8yXs3QjQIZ2SfuCxSVwlV65jotcjD2FTN04 hVopm9llFijNZpVIOGUTqzM4U55sdsCcZUluWM6x4HSOdw5F5Utxfp1wOjD/v92Lrax0hjiX DResHSt48q+8FrZzY+AUbkUS+Jm34qjswdrgsC5uxeVcLkBgWLmov2kMaMROT0YmFY6A3m1S P/kXmHDXxhe23gKb3dgwxUTpENDBGcfEzrzilWueOeUWiOcWuFOed/C3SyijBx3Av/lbCsHU Vx6pMycNTdzU1BuAroB+Y3mNEuW56Yd44jlInzG2UOwt9XjjdKkJZ1g0P9dwptwLEgTEd3Fo UdhAQyRXGYO8oROiuh+RZ1lXp6AQ4ZjoyH8WLfTLf5g1EKCTc4C1sy1vQSdzIRu3rBIjAvnC tGZADei1IExLqB3uzXKzZ1BZ+Z8hnt2og9hb7H0y8diYfEk2w3R7wEr+Ehk5NQsT2MPI2QBd wEv1/Aj1DgUHZAHzG1QN9S8wNWQ6K9DqHZTBnI1hUlkp22zCSHK/6FwUCuYp1zcAEQEAAc0j UGFvbG8gQm9uemluaSA8cGJvbnppbmlAcmVkaGF0LmNvbT7CwU0EEwECACMFAlRCcBICGwMH CwkIBwMCAQYVCAIJCgsEFgIDAQIeAQIXgAAKCRB+FRAMzTZpsbceDp9IIN6BIA0Ol7MoB15E 11kRz/ewzryFY54tQlMnd4xxfH8MTQ/mm9I482YoSwPMdcWFAKnUX6Yo30tbLiNB8hzaHeRj jx12K+ptqYbg+cevgOtbLAlL9kNgLLcsGqC2829jBCUTVeMSZDrzS97ole/YEez2qFpPnTV0 VrRWClWVfYh+JfzpXmgyhbkuwUxNFk421s4Ajp3d8nPPFUGgBG5HOxzkAm7xb1cjAuJ+oi/K CHfkuN+fLZl/u3E/fw7vvOESApLU5o0icVXeakfSz0LsygEnekDbxPnE5af/9FEkXJD5EoYG SEahaEtgNrR4qsyxyAGYgZlS70vkSSYJ+iT2rrwEiDlo31MzRo6Ba2FfHBSJ7lcYdPT7bbk9 AO3hlNMhNdUhoQv7M5HsnqZ6unvSHOKmReNaS9egAGdRN0/GPDWr9wroyJ65ZNQsHl9nXBqE AukZNr5oJO5vxrYiAuuTSd6UI/xFkjtkzltG3mw5ao2bBpk/V/YuePrJsnPFHG7NhizrxttB nTuOSCMo45pfHQ+XYd5K1+Cv/NzZFNWscm5htJ0HznY+oOsZvHTyGz3v91pn51dkRYN0otqr bQ4tlFFuVjArBZcapSIe6NV8C4cEiSTOwE0EVEJx7gEIAMeHcVzuv2bp9HlWDp6+RkZe+vtl KwAHplb/WH59j2wyG8V6i33+6MlSSJMOFnYUCCL77bucx9uImI5nX24PIlqT+zasVEEVGSRF m8dgkcJDB7Tps0IkNrUi4yof3B3shR+vMY3i3Ip0e41zKx0CvlAhMOo6otaHmcxr35sWq1Jk tLkbn3wG+fPQCVudJJECvVQ//UAthSSEklA50QtD2sBkmQ14ZryEyTHQ+E42K3j2IUmOLriF dNr9NvE1QGmGyIcbw2NIVEBOK/GWxkS5+dmxM2iD4Jdaf2nSn3jlHjEXoPwpMs0KZsgdU0pP JQzMUMwmB1wM8JxovFlPYrhNT9MAEQEAAcLBMwQYAQIACQUCVEJx7gIbDAAKCRB+FRAMzTZp sadRDqCctLmYICZu4GSnie4lKXl+HqlLanpVMOoFNnWs9oRP47MbE2wv8OaYh5pNR9VVgyhD OG0AU7oidG36OeUlrFDTfnPYYSF/mPCxHttosyt8O5kabxnIPv2URuAxDByz+iVbL+RjKaGM GDph56ZTswlx75nZVtIukqzLAQ5fa8OALSGum0cFi4ptZUOhDNz1onz61klD6z3MODi0sBZN Aj6guB2L/+2ZwElZEeRBERRd/uommlYuToAXfNRdUwrwl9gRMiA0WSyTb190zneRRDfpSK5d usXnM/O+kr3Dm+Ui+UioPf6wgbn3T0o6I5BhVhs4h4hWmIW7iNhPjX1iybXfmb1gAFfjtHfL xRUr64svXpyfJMScIQtBAm0ihWPltXkyITA92ngCmPdHa6M1hMh4RDX+Jf1fiWubzp1voAg0 JBrdmNZSQDz0iKmSrx8xkoXYfA3bgtFN8WJH2xgFL28XnqY4M6dLhJwV3z08tPSRqYFm4NMP dRsn0/7oymhneL8RthIvjDDQ5ktUjMe8LtHr70OZE/TT88qvEdhiIVUogHdo4qBrk41+gGQh b906Dudw5YhTJFU3nC6bbF2nrLlB4C/XSiH76ZvqzV0Z/cAMBo5NF/w= In-Reply-To: <2023101627-species-unscrew-2730@gregkh> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 7FE9A120030 X-Stat-Signature: tskazawgmpg71zbdiumkitummpp6ee63 X-HE-Tag: 1697469288-70105 X-HE-Meta: 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 zSV33p1t 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 10/16/23 17:12, Greg KH wrote: > On Mon, Oct 16, 2023 at 08:27:30AM -0500, Michael Roth wrote: >> From: Paolo Bonzini >> >> svm_recalc_instruction_intercepts() is always called at least once >> before the vCPU is started, so the setting or clearing of the RDTSCP >> intercept can be dropped from the TSC_AUX virtualization support. >> >> Extracted from a patch by Tom Lendacky. >> >> Cc: stable@vger.kernel.org >> Fixes: 296d5a17e793 ("KVM: SEV-ES: Use V_TSC_AUX if available instead of RDTSC/MSR_TSC_AUX intercepts") >> Signed-off-by: Paolo Bonzini >> (cherry picked from commit e8d93d5d93f85949e7299be289c6e7e1154b2f78) >> Signed-off-by: Michael Roth >> --- >> arch/x86/kvm/svm/sev.c | 5 +---- >> 1 file changed, 1 insertion(+), 4 deletions(-) > > What stable tree(s) are you wanting this applied to (same for the others > in this series)? It's already in the 6.1.56 release, and the Fixes tag > is for 5.19, so I don't see where it could be missing from? I tink it's missing in the (destined for 6.7) tree that Michael is basing this series on, so he's cherry picking it from Linus's tree. Paolo