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authorEduardo Habkost <ehabkost@redhat.com>2014-06-24 23:04:44 -0300
committerMichael S. Tsirkin <mst@redhat.com>2014-06-29 18:59:06 +0300
commitb8f5cfd6824ee7122e714ffc7e893432dd7beae5 (patch)
tree2ac9fc062124482dc5ccc54f194eef4808baded2 /hw/i386/pc_q35.c
parent9851d0fe3592f1b493aa9eb0166fdd4ed9f47430 (diff)
downloadfocaccia-qemu-b8f5cfd6824ee7122e714ffc7e893432dd7beae5.tar.gz
focaccia-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 'hw/i386/pc_q35.c')
-rw-r--r--hw/i386/pc_q35.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 155db99f63..36b6ab0bce 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -361,7 +361,7 @@ static QEMUMachine pc_q35_machine_v2_0 = {
     .name = "pc-q35-2.0",
     .init = pc_q35_init_2_0,
     .compat_props = (GlobalProperty[]) {
-        PC_Q35_COMPAT_2_0,
+        PC_COMPAT_2_0,
         { /* end of list */ }
     },
 };
@@ -373,7 +373,7 @@ static QEMUMachine pc_q35_machine_v1_7 = {
     .name = "pc-q35-1.7",
     .init = pc_q35_init_1_7,
     .compat_props = (GlobalProperty[]) {
-        PC_Q35_COMPAT_1_7,
+        PC_COMPAT_1_7,
         { /* end of list */ }
     },
 };
@@ -385,7 +385,7 @@ static QEMUMachine pc_q35_machine_v1_6 = {
     .name = "pc-q35-1.6",
     .init = pc_q35_init_1_6,
     .compat_props = (GlobalProperty[]) {
-        PC_Q35_COMPAT_1_6,
+        PC_COMPAT_1_6,
         { /* end of list */ }
     },
 };
@@ -395,7 +395,7 @@ static QEMUMachine pc_q35_machine_v1_5 = {
     .name = "pc-q35-1.5",
     .init = pc_q35_init_1_5,
     .compat_props = (GlobalProperty[]) {
-        PC_Q35_COMPAT_1_5,
+        PC_COMPAT_1_5,
         { /* end of list */ }
     },
 };
@@ -409,7 +409,7 @@ static QEMUMachine pc_q35_machine_v1_4 = {
     .name = "pc-q35-1.4",
     .init = pc_q35_init_1_4,
     .compat_props = (GlobalProperty[]) {
-        PC_Q35_COMPAT_1_4,
+        PC_COMPAT_1_4,
         { /* end of list */ }
     },
 };