Messages in this thread | | | Date | Thu, 15 May 2014 16:30:12 +0100 | From | David Vrabel <> | Subject | Re: [PATCHv6 0/9] x86/xen: fixes for mapping high MMIO regions (and remove _PAGE_IOMAP) |
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On 15/04/14 15:15, David Vrabel wrote: > This a fix for the problems with mapping high MMIO regions in certain > cases (e.g., the RDMA drivers) as not all mappers were specifing > _PAGE_IOMAP which meant no valid MFN could be found and the resulting > PTEs would be set as not present, causing subsequent faults.
I've applied patches #1 to #6 to devel/for-linus-3.16. These fix the bug. Patches #7 to #9 remove _PAGE_IOMAP but depend on an x86 change which is not yet acked and I'm not going to delay (again) the bug fix for this.
David
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