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RE: [Xen-devel] [patch] nx bit shouldn't get set when disabled
| To: | "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, "Scott Parish" <srparish@xxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] [patch] nx bit shouldn't get set when disabled |
| From: | "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> |
| Date: | Wed, 8 Jun 2005 22:30:40 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx, "Nakajima, Jun" <jun.nakajima@xxxxxxxxx> |
| Delivery-date: | Wed, 08 Jun 2005 21:29:57 +0000 |
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| Thread-index: | AcVscPFBUtycakUSRa687iRX0hT0OQAAEIGg |
| Thread-topic: | [Xen-devel] [patch] nx bit shouldn't get set when disabled |
> >> Why the extra mask ops with __supported_pte_mask? Native x86/64 > >> builds obviously don't need them... > > > > Definitions such as __PAGE_KERNEL set NX, but as Jun pointed out, > > those should only be set when NX mode is enabled. > > So the extra masking isn't required? I suspect normal hardware is prepared to put up with the bit being set even if its not supported... Ian _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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