From: Keir Fraser <keir@xensource.com>
To: danielsong <sjtusongyi@gmail.com>, xen-devel@lists.xensource.com
Subject: Re: hi, all. how can I write msr while in domain0? thanks in advance:)
Date: Thu, 26 Apr 2007 09:43:48 +0100 [thread overview]
Message-ID: <C25624D4.DF08%keir@xensource.com> (raw)
In-Reply-To: <e2a5d9ae0704260132x4efdb67eg652ae43dcc40e8ca@mail.gmail.com>
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On 26/4/07 09:32, "danielsong" <sjtusongyi@gmail.com> wrote:
> after searching in xensource web, I found that we can modify the
> emulate_privileged_op() in xen/arch/x86/traps.c
> but when add a printk sentence at the beginning of the emulate_privileged_op()
> I didn't get the output using dmesg | tail.
>
> it seems that the wrmsr didn't get into the emulate_privileged_op() ?
> the rdmsr operation is the same as wrmsr:-)
That¹s absolutely the function where RDMSR/WRMSR ends up. Are you looking in
the right place for the Xen output? VGA is taken over by domain0 by default
when it starts to boot. Have you looked at Œxm dmesg¹ output?
-- Keir
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next prev parent reply other threads:[~2007-04-26 8:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-26 8:32 hi, all. how can I write msr while in domain0? thanks in advance:) danielsong
2007-04-26 8:43 ` Keir Fraser [this message]
2007-04-26 17:16 ` Luke S. Crawford
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