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hw/ppc/pegasos2: Fix PCI interrupt routing

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According to the PegasosII schematics the PCI interrupt lines are
connected to both the gpp pins of the Mv64361 north bridge and the
PINT pins of the VT8231 south bridge so guests can get interrupts from
either of these. So far we only had the MV64361 connections which
worked for on board devices but for additional PCI devices (such as
network or sound card added with -device) guest OSes expect interrupt
from the ISA IRQ 9 where the firmware routes these PCI interrupts in
VT8231 ISA bridge. After the previous patches we can now model this
and also remove the board specific connection from mv64361. Also
configure routing of these lines when using Virtual Open Firmware to
match board firmware for guests that expect this.

This fixes PCI interrupts on pegasos2 under Linux, MorphOS and AmigaOS.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Rene Engel <ReneEngel80@emailn.de>
Message-Id: <520ff9e6eeef600ee14a4116c0c7b11940cc499c.1678188711.git.balaton@eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
BALATON Zoltan 2023-02-16 21:27:32 +01:00 • committed by Philippe Mathieu-Daudé
parent 2fdadd02e6
commit fb27a3e9e7
2 changed files with 25 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

4
hw/pci-host/mv64361.c
View file

@ -873,10 +873,6 @@ static void mv64361_realize(DeviceState *dev, Error **errp)
}
sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->cpu_irq);
qdev_init_gpio_in_named(dev, mv64361_gpp_irq, "gpp", 32);
/* FIXME: PCI IRQ connections may be board specific */
for (i = 0; i < PCI_NUM_PINS; i++) {
s->pci[1].irq[i] = qdev_get_gpio_in_named(dev, "gpp", 12 + i);
}
}
static void mv64361_reset(DeviceState *dev)