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Re: [Xen-devel] Shell test for pv vs hvm (vs dom0)

To: Alex Williamson <alex.williamson@xxxxxx>
Subject: Re: [Xen-devel] Shell test for pv vs hvm (vs dom0)
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Mon, 25 Feb 2008 13:40:05 +0000
Cc: "dan.magenheimer@xxxxxxxxxx" <dan.magenheimer@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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Yes, that should work for Linux just fine I think.

 -- Keir

On 25/2/08 12:58, "Alex Williamson" <alex.williamson@xxxxxx> wrote:

> On Sat, 2008-02-23 at 08:18 +0000, Keir Fraser wrote:
>> There's no general way to discriminate between HVM and native from a shell
>> script. You might discriminate between HVM and PV on Linux by looking for
>> /sys/hypervisor or /proc/xen.
> Isn't something like this generally sufficient for a shell script?
> lspci -n | grep -q "5853:0001"
> if [ $? -eq 0 ]; then
> # HVM domain
> elif [ -d /proc/xen ]; then
> if grep -q "control_d" /proc/xen/capabilities; then
> # DOM0
> else
> # DOMU
> fi
> else
> # Native
> fi
> It seems fairly reliable on ia64 for Xen 3.x.  Thanks,
> Alex

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