On Tue, Jun 16, 2020 at 2:16 AM Igor Mammedov <imamm...@redhat.com> wrote:
> On Mon, 15 Jun 2020 18:36:54 -0600
> "Jason A. Donenfeld" <ja...@zx2c4.com> wrote:
> > SSDTs cannot address 64-bit physical addresses in 32-bit tables, so we
> please clarify what accesses waht within tables (i.e. be more concrete).

If you add an ssdt or a custom_method in, say, Linux, your additional
methods are limited to 32-bit address space. For example, this is
invalid in current qemu:

DefinitionBlock ("blah.aml", "SSDT", 2, "", "", 0x00001001) {
  OperationRegion (BLAH, SystemMemory, 0x1ffffffff, 1)

But it becomes valid when applying this patch.

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