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| author | Eduardo Habkost | 2014-06-25 04:04:44 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2014-06-29 17:59:06 +0200 |
| commit | b8f5cfd6824ee7122e714ffc7e893432dd7beae5 (patch) | |
| tree | 2ac9fc062124482dc5ccc54f194eef4808baded2 /include | |
| parent | numa: fix comment (diff) | |
| download | qemu-b8f5cfd6824ee7122e714ffc7e893432dd7beae5.tar.gz qemu-b8f5cfd6824ee7122e714ffc7e893432dd7beae5.tar.xz qemu-b8f5cfd6824ee7122e714ffc7e893432dd7beae5.zip | |
pc: Move q35 compat props to PC_COMPAT_*
For each compat property on PC_Q35_COMPAT_*, there are only two
possibilities:
* If the device is never instantiated when using a machine other than
pc-q35, then the compat property can be safely added to
PC_COMPAT_*;
* If the device can be instantiated when using a machine other than
pc-q35, that means the other machines also need the compat property
to be set.
That means we don't need separate PC_Q35_COMPAT_* macros at all, today.
The hpet.hpet-intcap case is interesting: piix and q35 do have something
that emulates different defaults, but the machine-specific default is
applied _after_ compat_props are applied, by simply checking if the
property is zero (which is the real default on the hpet code).
The hpet.hpet-intcap=0x4 compat property can (should?) be applied to
piix too, because 0x4 was the default on both piix and q35 before the
hpet-intcap property was introduced.
Now, if one day we change the default HPET intcap on one of the PC
machine-types again, we may want to introduce PC_{Q35,I440FX}_COMPAT
macros. But while we don't need that, we can keep the code simple.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Cc: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/i386/pc.h | 55 |
1 files changed, 18 insertions, 37 deletions
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 486e98feac..81718b8430 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -294,43 +294,6 @@ int e820_add_entry(uint64_t, uint64_t, uint32_t); int e820_get_num_entries(void); bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *); -#define PC_Q35_COMPAT_2_0 \ - PC_COMPAT_2_0, \ - {\ - .driver = "ICH9-LPC",\ - .property = "memory-hotplug-support",\ - .value = "off",\ - },{\ - .driver = "xio3130-downstream",\ - .property = COMPAT_PROP_PCP,\ - .value = "off",\ - },{\ - .driver = "ioh3420",\ - .property = COMPAT_PROP_PCP,\ - .value = "off",\ - } - -#define PC_Q35_COMPAT_1_7 \ - PC_COMPAT_1_7, \ - PC_Q35_COMPAT_2_0, \ - {\ - .driver = "hpet",\ - .property = HPET_INTCAP,\ - .value = stringify(4),\ - } - -#define PC_Q35_COMPAT_1_6 \ - PC_COMPAT_1_6, \ - PC_Q35_COMPAT_1_7 - -#define PC_Q35_COMPAT_1_5 \ - PC_COMPAT_1_5, \ - PC_Q35_COMPAT_1_6 - -#define PC_Q35_COMPAT_1_4 \ - PC_COMPAT_1_4, \ - PC_Q35_COMPAT_1_5 - #define PC_COMPAT_2_0 \ {\ .driver = "virtio-scsi-pci",\ @@ -370,6 +333,19 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *); .driver = "virtio-net-pci",\ .property = "guest_announce",\ .value = "off",\ + },\ + {\ + .driver = "ICH9-LPC",\ + .property = "memory-hotplug-support",\ + .value = "off",\ + },{\ + .driver = "xio3130-downstream",\ + .property = COMPAT_PROP_PCP,\ + .value = "off",\ + },{\ + .driver = "ioh3420",\ + .property = COMPAT_PROP_PCP,\ + .value = "off",\ } #define PC_COMPAT_1_7 \ @@ -383,6 +359,11 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *); .driver = "PIIX4_PM",\ .property = "acpi-pci-hotplug-with-bridge-support",\ .value = "off",\ + },\ + {\ + .driver = "hpet",\ + .property = HPET_INTCAP,\ + .value = stringify(4),\ } #define PC_COMPAT_1_6 \ |