[PATCH 00/14] KVM: x86/mmu: Huge page fixes, cleanup, and DAX

Barret Rhoden brho at google.com
Thu Jan 9 11:47:41 PST 2020


Hi -

On 1/8/20 3:24 PM, Sean Christopherson wrote:
> This series is a mix of bug fixes, cleanup and new support in KVM's
> handling of huge pages.  The series initially stemmed from a syzkaller
> bug report[1], which is fixed by patch 02, "mm: thp: KVM: Explicitly
> check for THP when populating secondary MMU".
> 
> While investigating options for fixing the syzkaller bug, I realized KVM
> could reuse the approach from Barret's series to enable huge pages for DAX
> mappings in KVM[2] for all types of huge mappings, i.e. walk the host page
> tables instead of querying metadata (patches 05 - 09).

Thanks, Sean.  I tested this patch series out, and it works for me. 
(Huge KVM mappings of a DAX file, etc.).

Thanks,

Barret






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