qemu/hw/isa
Igor Mammedov 4fd75ce076 acpi: x86: move RPQx field back to _SB scope
Commit 47a373faa6 (acpi: pc/q35: drop ad-hoc PCI-ISA bridge AML routines and let bus ennumeration generate AML)
moved ISA bridge AML generation to respective devices and was using
aml_alias() to provide PRQx fields in _SB. scope. However, it turned
out that SeaBIOS was not able to process Alias opcode when parsing DSDT,
resulting in lack of keyboard during boot (SeaBIOS console, grub, FreeDOS).

While fix for SeaBIOS is posted
  https://mail.coreboot.org/hyperkitty/list/seabios@seabios.org/thread/RGPL7HESH5U5JRLEO6FP77CZVHZK5J65/
fixed SeaBIOS might not make into QEMU-7.2 in time.
Hence this workaround that puts PRQx back into _SB scope
and gets rid of aliases in ISA bridge description, so
DSDT will be parsable by broken SeaBIOS.

That brings back hardcoded references to ISA bridge
  PCI0.S08.P40C/PCI0.SF8.PIRQ
where middle part now is auto generated based on slot it's
plugged in, but it should be fine as bridge initialization
also hardcodes PCI address of the bridge so it can't ever
move. Once QEMU tree has fixed SeaBIOS blob, we should be able
to drop this part and revert back to alias based approach

Reported-by: Volker Rümelin <vr_qemu@t-online.de>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20221121153613.3972225-3-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-11-22 05:19:00 -05:00
..
apm.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
i82378.c prep: Fix Lesser GPL version number 2020-11-15 16:39:29 +01:00
isa-bus.c isa-bus: drop no longer used ISADeviceClass::build_aml 2022-06-09 19:32:48 -04:00
isa-superio.c Do not include sysemu/sysemu.h if it's not really necessary 2021-05-02 17:24:50 +02:00
Kconfig hw/isa/Kconfig: Fix dependencies of piix4 southbridge 2022-10-31 11:32:07 +01:00
lpc_ich9.c acpi: x86: move RPQx field back to _SB scope 2022-11-22 05:19:00 -05:00
meson.build meson: convert hw/isa 2020-08-21 06:30:29 -04:00
pc87312.c pc87312: Rename TYPE_PC87312_SUPERIO to TYPE_PC87312 2020-09-09 13:20:22 -04:00
piix3.c acpi: x86: move RPQx field back to _SB scope 2022-11-22 05:19:00 -05:00
piix4.c hw/isa/piix4: Move pci_ide_create_devs() call to board code 2022-10-31 11:32:07 +01:00
smc37c669-superio.c hw/isa/superio: Correct the license text 2020-04-01 19:00:16 +02:00
trace-events docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vt82c686.c hw/isa/vt82c686: Create rtc-time alias in boards instead 2022-10-31 11:32:07 +01:00