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[Xen-devel] [PATCH] Fix shadow code's handling of p2m superpage changes
| To: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH] Fix shadow code's handling of p2m superpage changes |
| From: | Tim Deegan <Tim.Deegan@xxxxxxxxxx> |
| Date: | Wed, 13 Aug 2008 11:43:04 +0100 |
| Delivery-date: | Wed, 13 Aug 2008 03:43:36 -0700 |
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| User-agent: | Mutt/1.5.17 (2007-11-01) |
When a p2m superpage entry is shattered, it's important not to unshadow any parts of the 2MB region that are still there afterwards. Otherwise shattering a superpage that contains the guest's top-level pagetable will cause the guest to be killed. Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxx> -- Tim Deegan <Tim.Deegan@xxxxxxxxxx> Principal Software Engineer, Citrix Systems (R&D) Ltd. [Company #02300071, SL9 0DZ, UK.]
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