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Tsirkin" , Mark Cave-Ayland , qemu-block@nongnu.org, Helge Deller , =?UTF-8?q?Herv=C3=A9=20Poussineau?= , Aleksandar Rikalo , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Artyom Tarasenko , Laurent Vivier , Thomas Huth , Eduardo Habkost , John Snow , David Gibson , Kevin Wolf , Max Reitz , qemu-ppc@nongnu.org, Aleksandar Markovic , Paolo Bonzini , Aurelien Jarno Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Mark Cave-Ayland The existing code uses fixed PCI IRQ routing on IRQ 14 rather than legacy I= RQ 14/15 routing as documented in the datasheet. With the changes in this patchset guest OSs now correctly detect and config= ure the VIA controller in legacy IRQ routing mode, allowing the incorrect fixed PCI IRQ routing to be removed. Note that this fixed legacy IRQ 14/15 routing is identical to similar behav= iour in the early PIIX IDE controllers. Signed-off-by: Mark Cave-Ayland Tested-by: BALATON Zoltan Signed-off-by: BALATON Zoltan Message-id: 20200313082444.2439-8-mark.cave-ayland@ilande.co.uk Signed-off-by: John Snow --- hw/ide/via.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/hw/ide/via.c b/hw/ide/via.c index 3c4d474e48..8de4945cc1 100644 --- a/hw/ide/via.c +++ b/hw/ide/via.c @@ -113,10 +113,7 @@ static void via_ide_set_irq(void *opaque, int n, int l= evel) } =20 level =3D (d->config[0x70] & 0x80) || (d->config[0x78] & 0x80); - n =3D pci_get_byte(d->config + PCI_INTERRUPT_LINE); - if (n) { - qemu_set_irq(isa_get_irq(NULL, n), level); - } + qemu_set_irq(isa_get_irq(NULL, 14 + n), level); } =20 static void via_ide_reset(DeviceState *dev) --=20 2.21.1