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From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Jan Beulich <JBeulich@suse.com>,
	xen-devel <xen-devel@lists.xenproject.org>
Cc: Kevin Tian <kevin.tian@intel.com>, Keir Fraser <keir@xen.org>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Jun Nakajima <jun.nakajima@intel.com>
Subject: Re: [PATCH] x86/vPMU: constrain MSR_IA32_DS_AREA loads
Date: Thu, 17 Dec 2015 14:05:41 +0000	[thread overview]
Message-ID: <5672C135.1060609@citrix.com> (raw)
In-Reply-To: <5672CE4002000078000C0C7D@prv-mh.provo.novell.com>

On 17/12/15 14:01, Jan Beulich wrote:
> For one, loading the MSR with a possibly non-canonical address was
> possible since the verification is conditional, while the MSR load
> wasn't. And then for PV guests we need to further limit the range of
> valid addresses to exclude the hypervisor range.
>
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>

  reply	other threads:[~2015-12-17 14:06 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-17 14:01 [PATCH] x86/vPMU: constrain MSR_IA32_DS_AREA loads Jan Beulich
2015-12-17 14:05 ` Andrew Cooper [this message]
2015-12-17 14:12 ` Boris Ostrovsky
2015-12-17 14:18   ` Jan Beulich
2015-12-17 14:26     ` Boris Ostrovsky
2015-12-17 14:29       ` Jan Beulich
2015-12-17 14:41         ` Boris Ostrovsky
2015-12-18  6:21           ` Tian, Kevin
2015-12-18 15:12             ` Boris Ostrovsky
2015-12-18 15:19               ` Jan Beulich
2015-12-18 15:32                 ` Boris Ostrovsky

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