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hw/i386/pc_piix: Make PIIX4 south bridge usable in PC machine

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QEMU's PIIX3 implementation actually models the real PIIX4, but with different
PCI IDs. Usually, guests deal just fine with it. Still, in order to provide a
more consistent illusion to guests, allow QEMU's PIIX4 implementation to be used
in the PC machine.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20231007123843.127151-30-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Bernhard Beschow 2023-10-07 14:38:37 +02:00 • committed by Michael S. Tsirkin
parent 12cecd4550
commit aa0c9aec57
4 changed files with 71 additions and 1 deletions
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2
include/hw/i386/pc.h
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@ -42,6 +42,7 @@ typedef struct PCMachineState {
uint64_t max_ram_below_4g;
OnOffAuto vmport;
SmbiosEntryPointType smbios_entry_point_type;
const char *south_bridge;
bool acpi_build_enabled;
bool smbus_enabled;
@ -92,6 +93,7 @@ struct PCMachineClass {
/* Device configuration: */
bool pci_enabled;
bool kvmclock_enabled;
const char *default_south_bridge;
/* Compat options: */