On Sat, Mar 11, 2017 at 08:38:19AM +0100, Laszlo Ersek wrote:
> >> "MdeModulePkg/Universal/Acpi/S3SaveStateDxe/AcpiS3ContextSave.c". I
> >> think the above check should be reworked to look for the FADT
> >> (EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) with code lifted
> >> from these helper functions. No driver outside of
> >> QemuFwCfgAcpiPlatformDxe will install the FADT. And, the FADT will
> >> always be part of QEMU's ACPI payload, if it generates one.
> >
> > OK, that would get things working again, I suppose. But do we want
> > neutered ACPI tables to be exposed at all, even if there is a DT in
> > that case to boot from?
>
> I think the neutered ACPI tables (on -no-acpi) should be fine. The
> upstream Linux guest will prefer DT if it is present;
Yes, but we've already determined that this situation is suboptimal,
which was what triggered this changeset to begin with.
/
Leif
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