via-ide: allow guests to write to PCI_CLASS_PROG

MorphOS writes to PCI_CLASS_PROG during IDE initialisation to place the
controller in native mode, but thinks the initialisation has failed
because the native mode bits aren't set when reading the register back.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-id: 20200313082444.2439-7-mark.cave-ayland@ilande.co.uk
Signed-off-by: John Snow <jsnow@redhat.com>

diff --git a/hw/ide/via.c b/hw/ide/via.c
index c8835de01b07c800b08adcd548c652320b4a375a..3c4d474e48b1a667e408d57a20f3deb905f197ed 100644 (file)
--- a/hw/ide/via.c
+++ b/hw/ide/via.c
@@ -170,6 +170,7 @@ static void via_ide_realize(PCIDevice *dev, Error **errp)
     pci_config_set_prog_interface(pci_conf, 0x8a); /* legacy mode */
     pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0);
     dev->wmask[PCI_INTERRUPT_LINE] = 0;
+    dev->wmask[PCI_CLASS_PROG] = 5;
 
     memory_region_init_io(&d->data_bar[0], OBJECT(d), &pci_ide_data_le_ops,
                           &d->bus[0], "via-ide0-data", 8);