linux-kernel - [PATCH 0/5] SEV fixes and performance enhancements

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-next>] [day] [month] [year] [list]

Message-ID: <cover.1570137447.git.thomas.lendacky@amd.com>
Date:   Thu, 3 Oct 2019 21:17:42 +0000
From:   "Lendacky, Thomas" <Thomas.Lendacky@....com>
To:     "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>,
        "Singh, Brijesh" <brijesh.singh@....com>,
        David Rientjes <rientjes@...gle.com>
Subject: [PATCH 0/5] SEV fixes and performance enhancements

From: Tom Lendacky <thomas.lendacky@....com>

This patch series provides fixes in the area of ASID assignment and VM
deactivation.

Additionally, it provides some performance enhancements by reducing the
number of WBINVD/DF_FLUSH invocations that are made.

Note: The third patch in the series modifies a file that is outside of
      the arch/x86/kvm directory.

---

Patches based on https://git.kernel.org/pub/scm/virt/kvm/kvm.git next
and commit:
  fd3edd4a9066 ("KVM: nVMX: cleanup and fix host 64-bit mode checks")

Tom Lendacky (5):
  KVM: SVM: Serialize access to the SEV ASID bitmap
  KVM: SVM: Guard against DEACTIVATE when performing WBINVD/DF_FLUSH
  KVM: SVM: Remove unneeded WBINVD and DF_FLUSH when starting SEV guests
  KVM: SVM: Convert DEACTIVATE mutex to read/write semaphore
  KVM: SVM: Reduce WBINVD/DF_FLUSH invocations

 arch/x86/kvm/svm.c           | 105 +++++++++++++++++++++++++++--------
 drivers/crypto/ccp/psp-dev.c |   9 +++
 2 files changed, 92 insertions(+), 22 deletions(-)

-- 
2.17.1