-----Original Message-----When iterate to level 1, it is leaf page table entry, bit 7 is PAT bit instead of PS bit.
From: Baolu Lu<baolu.lu@xxxxxxxxxxxxxxx>
Sent: Wednesday, October 23, 2024 12:50 PM
Subject: Re: [PATCH 2/2] iommu/vt-d: Fix checks in pgtable_walk()
On 2024/10/22 17:50, Zhenzhong Duan wrote:
It's not accurate to dump super page as non-present page,Can you please explain how the 'bit7 in first level page table entry' is
meanwhile bit7 in first level page table entry is PAT bit,
relevant to the changes made in this patch?
dma_pte_superpage(pte) may return true, then " PTE not present at level 1" may
be printed out.