diff options
| author | Bernhard Beschow <shentey@gmail.com> | 2023-10-07 14:38:29 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-10-22 05:18:17 -0400 |
| commit | ac4330359bee7a8cf3dab7f8639190dd17f1f4d1 (patch) | |
| tree | ab12cff52db90201e5e5fe9ad481021b0d3f612f /hw/isa | |
| parent | 2d7630f5c7dbe5ec1fc42082d135eb6e5f159ebd (diff) | |
hw/isa/piix: Allow for optional PIT creation in PIIX3
In the PC machine, the PIT is created in board code to allow it to be
virtualized with various virtualization techniques. So explicitly disable its
creation in the PC machine via a property which defaults to enabled. Once the
PIIX implementations are consolidated this default will keep Malta working
without further ado.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20231007123843.127151-22-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/isa')
| -rw-r--r-- | hw/isa/piix.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/isa/piix.c b/hw/isa/piix.c index d6d9ac6473..270b8eb1f7 100644 --- a/hw/isa/piix.c +++ b/hw/isa/piix.c @@ -361,6 +361,11 @@ static void pci_piix3_realize(PCIDevice *dev, Error **errp) isa_bus_register_input_irqs(isa_bus, d->isa_irqs_in); + /* PIT */ + if (d->has_pit) { + i8254_pit_init(isa_bus, 0x40, 0, NULL); + } + i8257_dma_init(isa_bus, 0); /* RTC */ @@ -436,6 +441,7 @@ static Property pci_piix3_props[] = { DEFINE_PROP_UINT32("smb_io_base", PIIXState, smb_io_base, 0), DEFINE_PROP_BOOL("has-acpi", PIIXState, has_acpi, true), DEFINE_PROP_BOOL("has-pic", PIIXState, has_pic, true), + DEFINE_PROP_BOOL("has-pit", PIIXState, has_pit, true), DEFINE_PROP_BOOL("has-usb", PIIXState, has_usb, true), DEFINE_PROP_BOOL("smm-enabled", PIIXState, smm_enabled, false), DEFINE_PROP_END_OF_LIST(), |