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Date: Sat, 2 Jun 2012 00:50:30 +0200
From: Borislav Petkov <borislav.petkov@amd.com>
To: Yinghai Lu <yinghai@kernel.org>
CC: Borislav Petkov <bp@amd64.org>, "H. Peter Anvin" <hpa@zytor.com>,
        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
        Jacob Shin <jacob.shin@amd.com>,
        Andre Przywara <andre.przywara@amd.com>, <jeremy@goop.org>,
        <xen-devel@lists.xensource.com>, LKML <linux-kernel@vger.kernel.org>,
        Jan Beulich <JBeulich@suse.com>, Ingo Molnar <mingo@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 2/4] x86, CPU: Fix show_msr MSR accessing function
Message-ID: <20120601225030.GC30418@aftab.osrc.amd.com>
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On Fri, Jun 01, 2012 at 11:22:03AM -0700, Yinghai Lu wrote:
> can you double check if the range will need special passcode ?
> 
>         { 0x00000000, 0x00000418},
>         { 0xc0000000, 0xc000040b},
>         { 0xc0010000, 0xc0010142},
>         { 0xc0011000, 0xc001103b},
> 
> passcode should be
>        gprs[7] = 0x9c5a203a;

This currently reads the MSRs it can read without the passcode. There's
no reason I'm aware of to access the other MSRs.

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Boris.

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