From: Guenter Roeck <li...@roeck-us.net> The IDE legacy mode emulation has been removed in commit 4ea98d317eb ("ide/via: Implement and use native PCI IDE mode") but some Linux kernels (probably including def_config) require legacy mode on the Fuloong2e so only emulating native mode did not turn out feasible. Add property to via-ide model to make the mode configurable, and set legacy mode for Fuloong2e.
[balaton: Use bit in flags for property, add comment for missing BAR4] Signed-off-by: Guenter Roeck <li...@roeck-us.net> Signed-off-by: BALATON Zoltan <bala...@eik.bme.hu> Tested-by: Guenter Roeck <li...@roeck-us.net> Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org> Reviewed-by: Jiaxun Yang <jiaxun.y...@flygoat.com> Message-Id: <17a50e58e6baa26440c7dac83f07fdbba1595439.1609191252.git.bala...@eik.bme.hu> Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org> --- hw/ide/via.c | 19 +++++++++++++++++-- hw/mips/fuloong2e.c | 4 +++- 2 files changed, 20 insertions(+), 3 deletions(-) diff --git a/hw/ide/via.c b/hw/ide/via.c index be09912b334..2d935b910f8 100644 --- a/hw/ide/via.c +++ b/hw/ide/via.c @@ -26,6 +26,7 @@ #include "qemu/osdep.h" #include "hw/pci/pci.h" +#include "hw/qdev-properties.h" #include "migration/vmstate.h" #include "qemu/module.h" #include "sysemu/dma.h" @@ -185,12 +186,19 @@ static void via_ide_realize(PCIDevice *dev, Error **errp) &d->bus[1], "via-ide1-cmd", 4); pci_register_bar(dev, 3, PCI_BASE_ADDRESS_SPACE_IO, &d->cmd_bar[1]); - bmdma_setup_bar(d); - pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar); + if (!(d->flags & BIT(PCI_IDE_LEGACY_MODE))) { + /* Missing BAR4 will make Linux driver fall back to legacy PIO mode */ + bmdma_setup_bar(d); + pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar); + } qdev_init_gpio_in(ds, via_ide_set_irq, 2); for (i = 0; i < 2; i++) { ide_bus_new(&d->bus[i], sizeof(d->bus[i]), ds, i, 2); + if (d->flags & BIT(PCI_IDE_LEGACY_MODE)) { + ide_init_ioport(&d->bus[i], NULL, i ? 0x170 : 0x1f0, + i ? 0x376 : 0x3f6); + } ide_init2(&d->bus[i], qdev_get_gpio_in(ds, i)); bmdma_init(&d->bus[i], &d->bmdma[i], d); @@ -210,6 +218,12 @@ static void via_ide_exitfn(PCIDevice *dev) } } +static Property via_ide_properties[] = { + DEFINE_PROP_BIT("legacy-mode", PCIIDEState, flags, PCI_IDE_LEGACY_MODE, + false), + DEFINE_PROP_END_OF_LIST(), +}; + static void via_ide_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -223,6 +237,7 @@ static void via_ide_class_init(ObjectClass *klass, void *data) k->device_id = PCI_DEVICE_ID_VIA_IDE; k->revision = 0x06; k->class_id = PCI_CLASS_STORAGE_IDE; + device_class_set_props(dc, via_ide_properties); set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); } diff --git a/hw/mips/fuloong2e.c b/hw/mips/fuloong2e.c index 45c596f4fe5..d334fde389f 100644 --- a/hw/mips/fuloong2e.c +++ b/hw/mips/fuloong2e.c @@ -253,7 +253,9 @@ static void vt82c686b_southbridge_init(PCIBus *pci_bus, int slot, qemu_irq intc, /* Super I/O */ isa_create_simple(isa_bus, TYPE_VT82C686B_SUPERIO); - dev = pci_create_simple(pci_bus, PCI_DEVFN(slot, 1), "via-ide"); + dev = pci_new(PCI_DEVFN(slot, 1), "via-ide"); + qdev_prop_set_bit(&dev->qdev, "legacy-mode", true); + pci_realize_and_unref(dev, pci_bus, &error_fatal); pci_ide_create_devs(dev); pci_create_simple(pci_bus, PCI_DEVFN(slot, 2), "vt82c686b-usb-uhci"); -- 2.26.2