| To: | <xen-devel@xxxxxxxxxxxxxxxxxxx> |
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| Subject: | [Xen-devel] [PATCH 5/5] just realized that it's broken |
| From: | "Jan Beulich" <jbeulich@xxxxxxxxxx> |
| Date: | 2009年1月30日 10:48:04 +0000 |
| Delivery-date: | 2009年1月30日 03:03:01 -0800 |
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This patch was moving the cpumask out of struct page_info into the page itself, but I just realized that this it not valid, since the purpose of the mask is to avoid a later TLB flush, hence the base assumption is that the page might still be in the TLB of some CPU, thus making it possible for a mis- behaved guest to still write to that page. Sorry for the mis-numbering, Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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