From: Konrad Rzeszutek Wilk <konrad@kernel.org>
To: Borislav Petkov <bp@alien8.de>, "H. Peter Anvin" <hpa@zytor.com>,
Ingo Molnar <mingo@kernel.org>,
Boris Ostrovsky <boris.ostrovsky@amd.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>,
boris.ostrovsky@oracle.com
Subject: Re: [GIT PULL] x86/cpu changes for v3.9
Date: Tue, 19 Feb 2013 12:57:27 -0500 [thread overview]
Message-ID: <20130219175726.GA18244@phenom.dumpdata.com> (raw)
In-Reply-To: <20130219174758.GB4465@pd.tnic>
On Tue, Feb 19, 2013 at 06:47:58PM +0100, Borislav Petkov wrote:
> On Tue, Feb 19, 2013 at 09:38:31AM -0800, H. Peter Anvin wrote:
> > My fault... I was tracking the fix and lost track of the thread.
> >
> > The problem is that the fix is necessary but not sufficient, as it
> > introduces an undesirable host-guest dependency. In order to allow
> > neerw guests to work on older hosts we also should use the
> > {rd,wr}msr_safe() functions to manipulate this MSR, with a comment
> > as to why.
> >
> > Boris, could you prepare such a patch, please?
>
> I don't think Boris O. is at AMD anymore. Want me to add that to my fix
> for kvm or prep a separate patch?
CC-ing Boris.
>
> --
> Regards/Gruss,
> Boris.
>
> Sent from a fat crate under my desk. Formatting is fine.
> --
> --
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next prev parent reply other threads:[~2013-02-19 17:57 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-19 15:25 [GIT PULL] x86/cpu changes for v3.9 Ingo Molnar
2013-02-19 15:36 ` Borislav Petkov
2013-02-19 15:47 ` Ingo Molnar
2013-02-19 17:38 ` H. Peter Anvin
2013-02-19 17:47 ` Borislav Petkov
2013-02-19 17:51 ` H. Peter Anvin
2013-02-19 18:33 ` [PATCH 1/2] x86, CPU, AMD: Fix WC+ workaround for older hosts Borislav Petkov
2013-02-19 18:33 ` [PATCH 2/2] x86, kvm: Add MSR_AMD64_BU_CFG2 to the list of ignored MSRs Borislav Petkov
2013-02-19 19:30 ` [tip:x86/cpu] " tip-bot for Borislav Petkov
2013-02-19 19:29 ` [tip:x86/cpu] x86, cpu, amd: Fix WC+ workaround for older virtual hosts tip-bot for Borislav Petkov
2013-02-19 17:57 ` Konrad Rzeszutek Wilk [this message]
2013-02-19 18:01 ` [GIT PULL] x86/cpu changes for v3.9 Borislav Petkov
2013-02-19 18:19 ` Boris Ostrovsky
2013-02-19 18:21 ` H. Peter Anvin
2013-02-19 18:26 ` Boris Ostrovsky
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