From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: 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>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Brijesh Singh <brijesh.singh@amd.com>,
Tom Lendacky <thomas.lendacky@amd.com>
Subject: [PATCH 0/3] KVM: SVM: SEV{-ES} bug fixes
Date: Tue, 30 Mar 2021 20:19:33 -0700 [thread overview]
Message-ID: <20210331031936.2495277-1-seanjc@google.com> (raw)
Misc bug fixes in SEV/SEV-ES to protect against a malicious userspace.
All found by inspection, I didn't actually crash the host to to prove that
userspace could hose the kernel in any of these cases. Boot tested an SEV
guest, though the SEV-ES side of patch 2 is essentially untested as I
don't have an SEV-ES setup at this time.
Sean Christopherson (3):
KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs
KVM: SVM: Do not set sev->es_active until KVM_SEV_ES_INIT completes
KVM: SVM: Do not allow SEV/SEV-ES initialization after vCPUs are
created
arch/x86/kvm/svm/sev.c | 37 ++++++++++++++++++-------------------
1 file changed, 18 insertions(+), 19 deletions(-)
--
2.31.0.291.g576ba9dcdaf-goog
next reply other threads:[~2021-03-31 3:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-31 3:19 Sean Christopherson [this message]
2021-03-31 3:19 ` [PATCH 1/3] KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs Sean Christopherson
2021-03-31 3:19 ` [PATCH 2/3] KVM: SVM: Do not set sev->es_active until KVM_SEV_ES_INIT completes Sean Christopherson
2021-03-31 3:19 ` [PATCH 3/3] KVM: SVM: Do not allow SEV/SEV-ES initialization after vCPUs are created Sean Christopherson
2021-03-31 9:37 ` [PATCH 0/3] KVM: SVM: SEV{-ES} bug fixes Paolo Bonzini
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=20210331031936.2495277-1-seanjc@google.com \
--to=seanjc@google.com \
--cc=brijesh.singh@amd.com \
--cc=jmattson@google.com \
--cc=joro@8bytes.org \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=pbonzini@redhat.com \
--cc=thomas.lendacky@amd.com \
--cc=vkuznets@redhat.com \
--cc=wanpengli@tencent.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.