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[31.46.244.156]) by smtp.gmail.com with ESMTPSA id cb9-20020a0564020b6900b00533ec6c617asm6074738edb.54.2023.09.28.02.32.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Sep 2023 02:32:53 -0700 (PDT) Sender: Ingo Molnar Date: Thu, 28 Sep 2023 11:32:51 +0200 From: Ingo Molnar To: Borislav Petkov Cc: Alexey Kardashevskiy , x86@kernel.org, linux-kernel@vger.kernel.org, Ingo Molnar , Tom Lendacky Subject: Re: [PATCH kernel v2] x86/compressed/64: reduce #VC nesting for intercepted CPUID for SEV-SNP guest Message-ID: References: <20230926040526.957240-1-aik@amd.com> <20230927112259.GAZRQQk78aJN85ULm1@fat_crate.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230927112259.GAZRQQk78aJN85ULm1@fat_crate.local> X-Spam-Status: No, score=-1.0 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Thu, 28 Sep 2023 02:33:18 -0700 (PDT) * Borislav Petkov wrote: > On Wed, Sep 27, 2023 at 11:48:33AM +0200, Ingo Molnar wrote: > > Not sure how this was supposed to work - there's no 'ghcb' passed in to > > snp_cpuid_postprocess(). Does this patch have a dependency perhaps, that > > I missed? > > Yes, it is explained above the diffstat. I'll take care of it when I get back. Erm, yes indeed - I checked the first dependency which had the wrong SHA1 listed and which dependency is already upstream as 8dbe33956d96, but I missed the second dependency: > > > plus: > > > https://lore.kernel.org/lkml/a5856fa1ebe3879de91a8f6298b6bbd901c61881.1690578565.git.thomas.lendacky@amd.com/ Alexey, for the v3 submission, instead of sending a standalone patch that relies on a yet unmerged patch that was last submitted about two months ago, please send a full series of patches that is self-consistent. Ie. it should look something like this: [PATCH 0/2] x86: Misc SEV-SNP fixes [PATCH 1/2] x86/sev: Fix SNP CPUID requests to the hypervisor [PATCH 2/2] x86/compressed/64: Reduce #VC nesting for intercepted CPUID for SEV-SNP guest ( You can add your SOB to Tom's first patch, to signal that you tested it and are forwarding it, and that your fix relies on that fix. ) Thanks, Ingo