From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A842922ACEB; Fri, 17 Jul 2026 14:49:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784299794; cv=none; b=Ld2tMxsclexb+cbmrG2S9Ih7J0lev0TmYL0EoA670NpfEyOLH22rg+dXBtNm0kKSMWnbJGsYlVohRDopNtRKRTBevikhqGOz1Qz/UK47ZWqLRGw5WZnrAMD2ETBYJoE9d3VEDC2Ep8ZDN7JrW8XmxDktbQVivjQ+XASj2yKdg8I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784299794; c=relaxed/simple; bh=aXb/D7Oz5BbiMrYtYN+9dFPjqeDRgdYXF/JAQI+QVso=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=O+tzvLcuDNV/iKLXhfu0/bIhnDZxjTle2g9mcFSmPBGoFfGBftfXKkB670fc7bT3W/+I009dGfx9TOfbzkoZaSgugSgkp0KVTz0VYP0WiflvGC8UgI+1kSBHLABmXtyx/PXftyjleA1Dh1LjCv/fJG6GlfZG1x3SgvfBA6cGFIQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=c69pwHaC; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="c69pwHaC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3C23C1F000E9; Fri, 17 Jul 2026 14:49:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784299793; bh=thCSV6qo+j8PApZXMoK0ulbEnJBDDj8FSxAYD8Wmou0=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=c69pwHaCH+KUpfIHVK2nGragkFsgUaS6y5rsrz6ComUqN8do4j2ciASg5xj//ZtMF A6IANyNNMpt/YyBeRGh2Qjahm8jDkGL2jvWVRGJosWjXTvL7gbf2eA9aKoCZMBZzco FGCL+jlrp9raYaEn8VVRE+iGEMXlriVaZ2E9ul8oE1gpCNGOl9MAkXEXQA4Qyv3dmN VOBKqvVsLEOYZuLbleIrE3iii/rQiEfRC4dLCu7bu2hcj1bordPwfbQ2Py+d8rf4Wz +sxhhOzjBHfHTYk+X9wHe15mvJwUqdOlb29WeXkOVBXb8pxYBt5ffySOnm2+DNsfAL 60QPXLm5lC5AA== Date: Fri, 17 Jul 2026 08:49:48 -0600 From: Tycho Andersen To: David Woodhouse Cc: Sean Christopherson , Paolo Bonzini , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-kselftest@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H . Peter Anvin" , x86@kernel.org, Jason Gunthorpe , Kevin Tian , Joerg Roedel , Will Deacon , Robin Murphy , Shuah Khan , Sumit Semwal , Christian =?utf-8?B?S8O2bmln?= , Tom Lendacky , Kees Cook , Ashish Kalra , Connor Williamson , Andrew Morton , Zhou Yuhang , Zi Li , Dan Williams , Eric Biggers , Colin Ian King , connordw@amazon.co.uk, graf@amazon.de, fgriffo@amazon.co.uk, David Woodhouse Subject: Re: [RFC PATCH 02/11] KVM: selftests: sev_init2_tests: Derive SEV availability from KVM Message-ID: References: <4710ad35dcfd1a85a24d15fb56dbf233ac05ad49.1784194290.git.dwmw@amazon.co.uk> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4710ad35dcfd1a85a24d15fb56dbf233ac05ad49.1784194290.git.dwmw@amazon.co.uk> On Thu, Jul 16, 2026 at 10:31:22AM +0100, David Woodhouse wrote: > From: David Woodhouse > > The test asserted that the X86_FEATURE_SEV CPUID bit exactly matches > whether KVM offers KVM_X86_SEV_VM. That is not an invariant: when all > SEV ASIDs are assigned to SEV-SNP, KVM does not offer the SEV VM type > even though CPUID reports SEV, so the test aborts on an SNP-only host. > > Derive SEV availability from KVM_CAP_VM_TYPES (as already done for SEV-ES > and SNP), assert only the one-way implication that a type offered by KVM > is also reported in CPUID, and TEST_REQUIRE() the SEV VM type so the test > skips cleanly when it is unavailable. > > Signed-off-by: David Woodhouse Reviewed-by: Tycho Andersen (AMD)