linux-kernel - Re: [PATCH v7 037/102] KVM: x86/mmu: Track shadow MMIO value/mask on a per-VM basis

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:   Thu, 28 Jul 2022 12:48:35 +1200
From:   Kai Huang <kai.huang@...el.com>
To:     Isaku Yamahata <isaku.yamahata@...il.com>
Cc:     isaku.yamahata@...el.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>
Subject: Re: [PATCH v7 037/102] KVM: x86/mmu: Track shadow MMIO value/mask
 on a per-VM basis

On Wed, 2022-07-27 at 16:20 -0700, Isaku Yamahata wrote:
> > KVM has a global enable_mmio_caching boolean, and I think we should honor it
> > here (in this patch) by doing below first:
> > 
> >  	if (enabling_mmio_caching)
> >  		mmio_value = 0;
> 
> This function already includes "if (!enable_mmio_caching) mmio_value = 0;" in
> the beginning. (But not in this hunk, though).  So this patch honors the
> kernel
> module parameter.

Yeah I missed that. Thanks.

-- 
Thanks,
-Kai