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[Xen-devel] Re: Changeset 20209 causes an issue in xen_in_range()
| To: | Jan Beulich <JBeulich@xxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Re: Changeset 20209 causes an issue in xen_in_range() |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Thu, 14 Jan 2010 11:47:32 +0000 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Dexuan Cui <dexuan.cui@xxxxxxxxx> |
| Delivery-date: | Thu, 14 Jan 2010 03:47:56 -0800 |
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| Thread-index: | AcqVC7WojRF7R9KjTMmsbJaWBuv/iwAA6WDa |
| Thread-topic: | Changeset 20209 causes an issue in xen_in_range() |
| User-agent: | Microsoft-Entourage/12.23.0.091001 |
On 14/01/2010 11:21, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote: >>> However, in iommu_set_dom0_mapping(), xen_in_range() is still True for the >>> freed pages above, so devices in Dom0 can meet with DMA fault. >> >> Should be fixed by c/s 20803. > > Do you really think so? Masking "start" with PERCPU_SIZE-1 doesn't > make sense, as it may be arbitrarily before __percpu_start and > not aligned. Below my take on it. How about c/s 20806? -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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