linux-kernel - Re: [PATCH 00/11] KVM: selftests: AVX support + fixes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <173039505052.1508646.12399325550980838662.b4-ty@google.com>
Date: Thu, 31 Oct 2024 12:51:54 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Vitaly Kuznetsov <vkuznets@...hat.com>
Subject: Re: [PATCH 00/11] KVM: selftests: AVX support + fixes

On Thu, 03 Oct 2024 16:43:26 -0700, Sean Christopherson wrote:
> Enable CR4.OSXSAVE and XCR0.AVX by default when creating selftests vCPUs
> in order to play nice with compilers that have been configured to enable
> -march=x86-64-v3 by default.
> 
> While it would be easier to force v2 (or earlier), there are enough tests
> that want XCR0 configured that it will (hopefully) be a net postive to
> enable all XCR0 features by default.
> 
> [...]

Applied to kvm-x86 selftests, minus patch 1 which went into 6.12.  At some point
in the 6.13 cycle I'll send a revert for the "march" madness.

[01/11] KVM: selftests: Fix out-of-bounds reads in CPUID test's array lookups
        (no commit info)
[02/11] KVM: selftests: Precisely mask off dynamic fields in CPUID test
        https://github.com/kvm-x86/linux/commit/c0124e2e74a7
[03/11] KVM: selftests: Mask off OSPKE and OSXSAVE when comparing CPUID entries
        https://github.com/kvm-x86/linux/commit/01e2827157ef
[04/11] KVM: selftests: Rework OSXSAVE CR4=>CPUID test to play nice with AVX insns
        https://github.com/kvm-x86/linux/commit/cf50f01336d3
[05/11] KVM: selftests: Configure XCR0 to max supported value by default
        https://github.com/kvm-x86/linux/commit/331b8ddaebc1
[06/11] KVM: selftests: Verify XCR0 can be "downgraded" and "upgraded"
        https://github.com/kvm-x86/linux/commit/d87b459428c0
[07/11] KVM: selftests: Drop manual CR4.OSXSAVE enabling from CR4/CPUID sync test
        https://github.com/kvm-x86/linux/commit/86502f01b8b9
[08/11] KVM: selftests: Drop manual XCR0 configuration from AMX test
        https://github.com/kvm-x86/linux/commit/fd7b6d77fa6d
[09/11] KVM: selftests: Drop manual XCR0 configuration from state test
        https://github.com/kvm-x86/linux/commit/818646fea3ea
[10/11] KVM: selftests: Drop manual XCR0 configuration from SEV smoke test
        https://github.com/kvm-x86/linux/commit/ce22d24024ea
[11/11] KVM: selftests: Ensure KVM supports AVX for SEV-ES VMSA FPU test
        https://github.com/kvm-x86/linux/commit/08cc7ab1a6ca

--
https://github.com/kvm-x86/linux/tree/next