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Re: [Xen-devel] [PATCH 00/11] [v2] misc changes for kexec in pv-on-hvm g
| To: | Olaf Hering <olaf@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH 00/11] [v2] misc changes for kexec in pv-on-hvm guests |
| From: | Keir Fraser <keir.xen@xxxxxxxxx> |
| Date: | Thu, 28 Jul 2011 14:43:43 +0100 |
| Cc: | |
| Delivery-date: | Thu, 28 Jul 2011 06:44:26 -0700 |
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| Thread-topic: | [Xen-devel] [PATCH 00/11] [v2] misc changes for kexec in pv-on-hvm guests |
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On 28/07/2011 14:23, "Olaf Hering" <olaf@xxxxxxxxx> wrote: > A fixed kexec-tools-2.0.2 package is required: > http://lists.infradead.org/pipermail/kexec/2011-May/005026.html > However, as I just found out, xenfs unconditionally adds > /proc/xen/capabilities > even for hvm guest. > > So: how is a hvm guest supposed to be detected in 3.0? Rip the moving parts from tools/misc/xen-detect.c. It does rely on hooking SIGILL if you want to safely probe for being a PV guest (uses a paravirtualised CPUID instruction that is normally an illegal instruction). -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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