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[Xen-devel] [PATCH] [HVM] Fix lmsw handling
| To: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH] [HVM] Fix lmsw handling |
| From: | "Trolle Selander" <trolle.selander@xxxxxxxxx> |
| Date: | Fri, 27 Jun 2008 14:11:57 +0100 |
| Cc: | |
| Delivery-date: | Fri, 27 Jun 2008 06:12:21 -0700 |
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The lmsw instruction can be used to set CR0_PE, but can never clear it, once set. Currently, as far as I can see, there is no provision to keep lmsw from clearing CR0_PE, either in the vmx code or in x86_emulate code (which is used by SVM to emulate lmsw). This patch fixes this issue. Signed-off-by: Trolle Selander <trolle.selander@xxxxxxxxxxxxx>
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