On Mon, Jun 03, 2019 at 06:55:17PM +0200, Andrey Konovalov wrote:
> This patch is a part of a series that extends arm64 kernel ABI to allow to
> pass tagged user pointers (with the top byte set to something else other
> than 0x00) as syscall arguments.
>
> vaddr_get_pfn() uses provided user
On Mon, Jun 03, 2019 at 06:55:17PM +0200, Andrey Konovalov wrote:
> This patch is a part of a series that extends arm64 kernel ABI to allow to
> pass tagged user pointers (with the top byte set to something else other
> than 0x00) as syscall arguments.
>
> vaddr_get_pfn() uses provided user
This patch is a part of a series that extends arm64 kernel ABI to allow to
pass tagged user pointers (with the top byte set to something else other
than 0x00) as syscall arguments.
vaddr_get_pfn() uses provided user pointers for vma lookups, which can
only by done with untagged pointers.
Untag
