From: Sean Christopherson <seanjc@google.com>
To: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, Paolo Bonzini <pbonzini@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
Sean Christopherson <seanjc@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
Brijesh Singh <brijesh.singh@amd.com>,
Tom Lendacky <thomas.lendacky@amd.com>
Subject: [PATCH v3 0/2] x86/cpufeatures: KVM: Add mem encrypt word
Date: Fri, 22 Jan 2021 12:40:45 -0800 [thread overview]
Message-ID: <20210122204047.2860075-1-seanjc@google.com> (raw)
Gather the AMD memory encryption features into a dedicated word for CPUID
0x8000001F[EAX] and use the new word in KVM to adjust its reporting of SEV
support based on host kernel enabling.
Paolo, can you ack patch 2? Boris is planning on taking this through the
tip tree. Thanks!
Split out from a larger KVM SEV cleanup series[*], thus the somewhat
questionable v3 tag.
Based on v5.11-rc4.
[*] https://lkml.kernel.org/r/20210114003708.3798992-1-seanjc@google.com
Sean Christopherson (2):
x86/cpufeatures: Assign dedicated feature word for
CPUID_0x8000001F[EAX]
KVM: x86: Override reported SME/SEV feature flags with host mask
arch/x86/include/asm/cpufeature.h | 7 +++++--
arch/x86/include/asm/cpufeatures.h | 17 +++++++++++------
arch/x86/include/asm/disabled-features.h | 3 ++-
arch/x86/include/asm/required-features.h | 3 ++-
arch/x86/kernel/cpu/common.c | 3 +++
arch/x86/kernel/cpu/scattered.c | 5 -----
arch/x86/kvm/cpuid.c | 2 ++
arch/x86/kvm/cpuid.h | 1 +
tools/arch/x86/include/asm/disabled-features.h | 3 ++-
tools/arch/x86/include/asm/required-features.h | 3 ++-
10 files changed, 30 insertions(+), 17 deletions(-)
--
2.30.0.280.ga3ce27912f-goog
next reply other threads:[~2021-01-22 20:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-22 20:40 Sean Christopherson [this message]
2021-01-22 20:40 ` [PATCH v3 1/2] x86/cpufeatures: Assign dedicated feature word for CPUID_0x8000001F[EAX] Sean Christopherson
2021-01-22 20:40 ` [PATCH v3 2/2] KVM: x86: Override reported SME/SEV feature flags with host mask Sean Christopherson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210122204047.2860075-1-seanjc@google.com \
--to=seanjc@google.com \
--cc=bp@alien8.de \
--cc=brijesh.singh@amd.com \
--cc=hpa@zytor.com \
--cc=jmattson@google.com \
--cc=joro@8bytes.org \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=pbonzini@redhat.com \
--cc=tglx@linutronix.de \
--cc=thomas.lendacky@amd.com \
--cc=vkuznets@redhat.com \
--cc=wanpengli@tencent.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox