From: Bernhard Beschow <shentey@gmail.com>
To: qemu-devel@nongnu.org
Cc: "Huacai Chen" <chenhuacai@kernel.org>,
"Gerd Hoffmann" <kraxel@redhat.com>,
qemu-ppc@nongnu.org, "Jiaxun Yang" <jiaxun.yang@flygoat.com>,
"BALATON Zoltan" <balaton@eik.bme.hu>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>,
"Bernhard Beschow" <shentey@gmail.com>
Subject: [PATCH v3 0/3] VT82xx PCI IRQ routing fixes
Date: Mon, 27 Feb 2023 13:33:13 +0100 [thread overview]
Message-ID: <20230227123316.18719-1-shentey@gmail.com> (raw)
This series makes PCI interrupt routing in the VIA south bridges more compliant
to the PCI specification. It aims to help bringing audio output support to the
ppc/pegasos2 machine [1].
v3:
* Remove superfluous if statement in patch 2 (Phil)
v2:
* Remove audio patches which were included for proof of concept
Testing done with via-ac97 audio patches on top:
* `make check`
* `qemu-system-ppc -M pegasos2 -rtc base=localtime -device
ati-vga,guest_hwcursor=true,romfile="" -cdrom morphos-3.17.iso -kernel
morphos-3.17/boot.img`
-> There is a nice sound when the Desktop becomes visible.
* `qemu-system-ppc -M pegasos2 -bios pegasos2.rom -rtc base=localtime -device
ati-vga,guest_hwcursor=true,romfile="" -cdrom morphos-3.17.iso`
-> There is a nice sound when the Desktop becomes visible.
* `qemu-system-ppc -M pegasos2 -bios pegasos2.rom -rtc base=localtime -device
ati-vga,guest_hwcursor=true,romfile="" -cdrom morphos-3.17.iso -device
usb-mouse -device usb-kbd`
-> The machine hangs when audio is supposed to play while the mouse is moved.
This behavior can also be reproduced in v1.
[1] https://patchew.org/QEMU/cover.1677004414.git.balaton@eik.bme.hu/
Bernhard Beschow (3):
hw/ppc/pegasos2: Initialize VT8231 PCI IRQ router
hw/isa/vt82c686: Implement PCI IRQ routing
hw/usb/vt82c686-uhci-pci: Use PCI IRQ routing
hw/isa/vt82c686.c | 41 ++++++++++++++++++++++++++++++++++++++
hw/ppc/pegasos2.c | 6 ++++++
hw/usb/vt82c686-uhci-pci.c | 12 -----------
3 files changed, 47 insertions(+), 12 deletions(-)
--
2.39.2
next reply other threads:[~2023-02-27 12:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-27 12:33 Bernhard Beschow [this message]
2023-02-27 12:33 ` [PATCH v3 1/3] hw/ppc/pegasos2: Initialize VT8231 PCI IRQ router Bernhard Beschow
2023-02-27 12:33 ` [PATCH v3 2/3] hw/isa/vt82c686: Implement PCI IRQ routing Bernhard Beschow
2023-02-27 12:33 ` [PATCH v3 3/3] hw/usb/vt82c686-uhci-pci: Use " Bernhard Beschow
2023-02-27 12:40 ` [PATCH v3 0/3] VT82xx PCI IRQ routing fixes BALATON Zoltan
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