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[PATCH v4 1/7] hw/mips/gt64xxx_pci: Fix PCI IRQ levels to be preserved d
From: |
Bernhard Beschow |
Subject: |
[PATCH v4 1/7] hw/mips/gt64xxx_pci: Fix PCI IRQ levels to be preserved during migration |
Date: |
Thu, 17 Feb 2022 11:19:18 +0100 |
Based on commit e735b55a8c11dd455e31ccd4420e6c9485191d0c:
piix_pci: eliminate PIIX3State::pci_irq_levels
PIIX3State::pci_irq_levels are redundant which is already tracked by
PCIBus layer. So eliminate them.
The IRQ levels in the PCIBus layer are already preserved during
migration. By reusing them and rather than having a redundant implementation
the bug is avoided in the first place.
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
---
hw/mips/gt64xxx_pci.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/hw/mips/gt64xxx_pci.c b/hw/mips/gt64xxx_pci.c
index c7480bd019..4cbd0911f5 100644
--- a/hw/mips/gt64xxx_pci.c
+++ b/hw/mips/gt64xxx_pci.c
@@ -1006,14 +1006,11 @@ static int gt64120_pci_map_irq(PCIDevice *pci_dev, int
irq_num)
}
}
-static int pci_irq_levels[4];
-
static void gt64120_pci_set_irq(void *opaque, int irq_num, int level)
{
int i, pic_irq, pic_level;
qemu_irq *pic = opaque;
-
- pci_irq_levels[irq_num] = level;
+ PCIBus *bus = pci_get_bus(piix4_dev);
/* now we change the pic irq level according to the piix irq mappings */
/* XXX: optimize */
@@ -1023,7 +1020,7 @@ static void gt64120_pci_set_irq(void *opaque, int
irq_num, int level)
pic_level = 0;
for (i = 0; i < 4; i++) {
if (pic_irq == piix4_dev->config[PIIX_PIRQCA + i]) {
- pic_level |= pci_irq_levels[i];
+ pic_level |= pci_bus_get_irq_level(bus, i);
}
}
qemu_set_irq(pic[pic_irq], pic_level);
--
2.35.1
- [PATCH v4 0/7] malta: Fix PCI IRQ levels to be preserved during migration, cleanup, Bernhard Beschow, 2022/02/17
- [PATCH v4 1/7] hw/mips/gt64xxx_pci: Fix PCI IRQ levels to be preserved during migration,
Bernhard Beschow <=
- [PATCH v4 3/7] hw/isa/piix4: Resolve redundant i8259[] attribute, Bernhard Beschow, 2022/02/17
- [PATCH v4 4/7] hw/isa/piix4: Pass PIIX4State as opaque parameter for piix4_set_irq(), Bernhard Beschow, 2022/02/17
- [PATCH v4 5/7] hw/isa/piix4: Resolve global instance variable, Bernhard Beschow, 2022/02/17
- [PATCH v4 2/7] malta: Move PCI interrupt handling from gt64xxx_pci to piix4, Bernhard Beschow, 2022/02/17
- [PATCH v4 7/7] hw/mips/gt64xxx_pci: Resolve gt64120_register(), Bernhard Beschow, 2022/02/17
- [PATCH v4 6/7] hw/isa/piix4: Replace some magic IRQ constants, Bernhard Beschow, 2022/02/17
- Re: [PATCH v4 0/7] malta: Fix PCI IRQ levels to be preserved during migration, cleanup, Bernhard Beschow, 2022/02/25