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Re: [Xen-devel] [PATCHv6 0/9] x86/xen: fixes for mapping high MMIO regions (and remove _PAGE_IOMAP)



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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