On Thu, Nov 19, 2020 at 10:19:01PM -0600, Brijesh Singh wrote:
> On 11/19/20 8:30 PM, Suravee Suthikulpanit wrote:
> > On 11/18/20 5:57 AM, Will Deacon wrote:
> > > I think I'm missing something here. set_memory_4k() will break the
> > kernel
> > > linear mapping up into page granular mappings,
On 11/19/20 8:30 PM, Suravee Suthikulpanit wrote:
> Will,
>
> To answer your questions from v1 thread.
>
> On 11/18/20 5:57 AM, Will Deacon wrote:
> > On 11/5/20 9:58 PM, Suravee Suthikulpanit wrote:
> >> AMD IOMMU requires 4k-aligned pages for the event log, the PPR log,
> >> and the completion
Will,
To answer your questions from v1 thread.
On 11/18/20 5:57 AM, Will Deacon wrote:
> On 11/5/20 9:58 PM, Suravee Suthikulpanit wrote:
>> AMD IOMMU requires 4k-aligned pages for the event log, the PPR log,
>> and the completion wait write-back regions. However, when allocating
>> the pages,
AMD IOMMU requires 4k-aligned pages for the event log, the PPR log,
and the completion wait write-back regions. However, when allocating
the pages, they could be part of large mapping (e.g. 2M) page.
This causes #PF due to the SNP RMP hardware enforces the check based
on the page level for these
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