qemu/include/hw/compat.h
John Snow 4812fa27fa fdc: change auto fallback drive for ISA FDC to 288
The 2.88 drive is more suitable as a default because
it can still read 1.44 images correctly, but the reverse
is not true.

Since there exist virtio-win drivers that are shipped on
2.88 floppy images, this patch will allow VMs booted without
a floppy disk inserted to later insert a 2.88MB floppy and
have that work.

This patch has been tested with msdos, freedos, fedora,
windows 8 and windows 10 without issue: if problems do
arise for certain guests being unable to cope with 2.88MB
drives as the default, they are in the minority and can use
type=144 as needed (or insert a proper boot medium and omit
type=144/288 or use type=auto) to obtain different drive types.

As icing, the default will remain auto/144 for any pre-2.6
machine types, hopefully minimizing the impact of this change
in legacy hw to basically zero.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1453495865-9649-13-git-send-email-jsnow@redhat.com
2016-01-25 14:36:01 -05:00

105 lines
2.5 KiB
C

#ifndef HW_COMPAT_H
#define HW_COMPAT_H
#define HW_COMPAT_2_5 \
{\
.driver = "isa-fdc",\
.property = "fallback",\
.value = "144",\
},{\
.driver = "pvscsi",\
.property = "x-old-pci-configuration",\
.value = "on",\
},{\
.driver = "pvscsi",\
.property = "x-disable-pcie",\
.value = "on",\
},\
{\
.driver = "vmxnet3",\
.property = "x-old-msi-offsets",\
.value = "on",\
},{\
.driver = "vmxnet3",\
.property = "x-disable-pcie",\
.value = "on",\
},
#define HW_COMPAT_2_4 \
{\
.driver = "virtio-blk-device",\
.property = "scsi",\
.value = "true",\
},{\
.driver = "e1000",\
.property = "extra_mac_registers",\
.value = "off",\
},{\
.driver = "virtio-pci",\
.property = "x-disable-pcie",\
.value = "on",\
},{\
.driver = "virtio-pci",\
.property = "migrate-extra",\
.value = "off",\
},
#define HW_COMPAT_2_3 \
{\
.driver = "virtio-blk-pci",\
.property = "any_layout",\
.value = "off",\
},{\
.driver = "virtio-balloon-pci",\
.property = "any_layout",\
.value = "off",\
},{\
.driver = "virtio-serial-pci",\
.property = "any_layout",\
.value = "off",\
},{\
.driver = "virtio-9p-pci",\
.property = "any_layout",\
.value = "off",\
},{\
.driver = "virtio-rng-pci",\
.property = "any_layout",\
.value = "off",\
},
#define HW_COMPAT_2_2 \
/* empty */
#define HW_COMPAT_2_1 \
{\
.driver = "intel-hda",\
.property = "old_msi_addr",\
.value = "on",\
},{\
.driver = "VGA",\
.property = "qemu-extended-regs",\
.value = "off",\
},{\
.driver = "secondary-vga",\
.property = "qemu-extended-regs",\
.value = "off",\
},{\
.driver = "virtio-scsi-pci",\
.property = "any_layout",\
.value = "off",\
},{\
.driver = "usb-mouse",\
.property = "usb_version",\
.value = stringify(1),\
},{\
.driver = "usb-kbd",\
.property = "usb_version",\
.value = stringify(1),\
},{\
.driver = "virtio-pci",\
.property = "virtio-pci-bus-master-bug-migration",\
.value = "on",\
},
#endif /* HW_COMPAT_H */