linux-kernel - Re: [PATCH v2 0/6] KVM: x86: cleanup and speedup for APICv

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

Date:   Tue, 7 Feb 2017 18:23:04 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH v2 0/6] KVM: x86: cleanup and speedup for APICv



On 19/12/2016 17:17, Paolo Bonzini wrote:
> These are the fixed patches that now pass vmx.flat.  The issue in
> "KVM: x86: do not scan IRR twice on APICv vmentry" was that,
> in v1 of the patches, kvm_cpu_get_interrupt did not scan IRR
> at all if it found PIR.ON=0.  This is now fixed in patches 4 and 5.
> 
> Another latent bug has to be fixed in patch 2.  The patch also
> highlights the maze that check_nested_events has become.  Fixing
> that is left for later.
> 
> The patches are on top of the (non-APICv-related) KVM_REQ_EVENT
> patches from this morning.  According to kvm-unit-tests, patch 6 speeds
> up self-IPIs (if not done through the accelerated self-IPI MSR) by 5-10%.
> 
> Paolo

Ping?

Paolo