[Qemu-devel] synching GPE0_BLK between OVMF and qemu

[Laszlo Ersek]

Hi,

I'm trying to "improve understanding" between OVMF and qemu-kvm.

edk2's "OvmfPkg/AcpiTables/Platform.h" specifies GPE0_BLK at 0x40C,
while qemu's "hw/acpi_piix4.c" expects the guest to access it at 0xAFE0.
Which macro should be modified to get them in sync?

(SeaBIOS's "src/acpi.c" #defines PIIX4_GPE0_BLK as 0xafe0 as well.)

Or should this setting be communicated via fw_cfg too (not yet in OVMF
as far as I know)?

Thank you,
Laszlo