linux-kernel - Re: [PATCH] KVM: SVM: Adjust tsc_offset only if tsc

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]

Message-ID: <4B2DF597.6050106@redhat.com>
Date:	Sun, 20 Dec 2009 11:59:51 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Zachary Amsden <zamsden@...hat.com>
CC:	Joerg Roedel <joerg.roedel@....com>,
	Marcelo Tosatti <mtosatti@...hat.com>, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: SVM: Adjust tsc_offset only if tsc_unstable

On 12/15/2009 05:38 AM, Zachary Amsden wrote:
> On 12/14/2009 01:22 AM, Joerg Roedel wrote:
>> The tsc_offset adjustment in svm_vcpu_load is executed
>> unconditionally even if Linux considers the host tsc as
>> stable. This causes a Linux guest detecting an unstable tsc
>> in any case.
>> This patch removes the tsc_offset adjustment if the host tsc
>> is stable. The guest will now get the benefit of a stable
>> tsc too.
>>
> Hi Joerg, I have a much more comprehensive series of patches to 
> address this issue, please take a look.
>

Despite this, I've applied the patch to have this fix in while we review 
your patch set (haven't started yet, sorry - still recovering from 
nested vmx).

-- 
error compiling committee.c: too many arguments to function

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/