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: <20240209222047.394389-1-seanjc@google.com>
Date: Fri,  9 Feb 2024 14:20:45 -0800
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, 
	Li RongQing <lirongqing@...du.com>, Maxim Levitsky <mlevitsk@...hat.com>
Subject: [PATCH 0/2] KVM: x86: kvm_has_noapic_vcpu fix/cleanup

Fix a longstanding bug where KVM fails to decrement kvm_has_noapic_vcpu
if vCPU creation ultimately fails.  This is obviously way more than just
a fix, but (a) in all likelihood no real users are affected by this, (b)
the absolutely worst case scenario is minor performance degredation, and
(c) I'm not at all convinced that kvm_has_noapic_vcpu provides any
performance benefits.

Sean Christopherson (2):
  KVM: x86: Move "KVM no-APIC vCPU" key management into local APIC code
  KVM: x86: Sanity check that kvm_has_noapic_vcpu is zero at
    module_exit()

 arch/x86/kvm/lapic.c | 27 ++++++++++++++++++++++++++-
 arch/x86/kvm/x86.c   | 34 ++++------------------------------
 2 files changed, 30 insertions(+), 31 deletions(-)


base-commit: 7455665a3521aa7b56245c0a2810f748adc5fdd4
-- 
2.43.0.687.g38aa6559b0-goog


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ