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  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]
Date:   Fri, 14 Jun 2019 09:25:39 -0700
From:   Sean Christopherson <>
To:     Paolo Bonzini <>
Subject: Re: [PATCH 21/43] KVM: nVMX: Don't reread VMCS-agnostic state when
 switching VMCS

On Thu, Jun 13, 2019 at 07:03:07PM +0200, Paolo Bonzini wrote:
> From: Sean Christopherson <>
> When switching between vmcs01 and vmcs02, there is no need to update
> state tracking for values that aren't tied to any particular VMCS as
> the per-vCPU values are already up-to-date (vmx_switch_vmcs() can only
> be called when the vCPU is loaded).
> Avoiding the update eliminates a RDMSR, and potentially a RDPKRU and
> posted-interrupt updated (cmpxchg64() and more).

Another typo, s/updated/update.

> Signed-off-by: Sean Christopherson <>
> Signed-off-by: Paolo Bonzini <>
> ---

Powered by blists - more mailing lists