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| author | Igor Mammedov <imammedo@redhat.com> | 2022-11-21 16:36:12 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-11-22 05:19:00 -0500 |
| commit | 4fd75ce0760ad645ce4b8fe589717aee4f8c0da6 (patch) | |
| tree | 10af673e320d21ca242c1f0a9216b7790930a131 /backends/vhost-user.c | |
| parent | 2df30863fa55002cc965a17405204860eda64273 (diff) | |
| download | focaccia-qemu-4fd75ce0760ad645ce4b8fe589717aee4f8c0da6.tar.gz focaccia-qemu-4fd75ce0760ad645ce4b8fe589717aee4f8c0da6.zip | |
acpi: x86: move RPQx field back to _SB scope
Commit 47a373faa6b2 (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>
Diffstat (limited to 'backends/vhost-user.c')
0 files changed, 0 insertions, 0 deletions