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Re: [PATCH] hw/acpi: specify 64-bit acpi table
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From: |
Jason A. Donenfeld |
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Subject: |
Re: [PATCH] hw/acpi: specify 64-bit acpi table |
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Date: |
Tue, 16 Jun 2020 12:50:15 -0600 |
On Tue, Jun 16, 2020 at 2:16 AM Igor Mammedov <imammedo@redhat.com> wrote:
> On Mon, 15 Jun 2020 18:36:54 -0600
> "Jason A. Donenfeld" <Jason@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.