[Qemu-devel] [v5 PATCH 1/2] pc: add compat_props placeholder for 2.0 machine type

["Gabriel L. Somlo" <gsomlo@gmail.com>]

Add the "boilerplate" necessary for subsequent patches to
simply drop in compat_props for pc machines 2.0 and older.

This patch contains no functional changes.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
---
 hw/i386/pc_piix.c    | 4 ++++
 hw/i386/pc_q35.c     | 4 ++++
 include/hw/i386/pc.h | 9 +++++++++
 3 files changed, 17 insertions(+)

diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 5b3594b..7c672d7 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -415,6 +415,10 @@ static QEMUMachine pc_i440fx_machine_v2_0 = {
     PC_I440FX_2_0_MACHINE_OPTIONS,
     .name = "pc-i440fx-2.0",
     .init = pc_init_pci_2_0,
+    .compat_props = (GlobalProperty[]) {
+        PC_COMPAT_2_0,
+        { /* end of list */ }
+    },
 };
 
 #define PC_I440FX_1_7_MACHINE_OPTIONS PC_I440FX_MACHINE_OPTIONS
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 5b48231..1fe2213 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -328,6 +328,10 @@ static QEMUMachine pc_q35_machine_v2_0 = {
     PC_Q35_2_0_MACHINE_OPTIONS,
     .name = "pc-q35-2.0",
     .init = pc_q35_init_2_0,
+    .compat_props = (GlobalProperty[]) {
+        PC_Q35_COMPAT_2_0,
+        { /* end of list */ }
+    },
 };
 
 #define PC_Q35_1_7_MACHINE_OPTIONS PC_Q35_MACHINE_OPTIONS
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 9f26e14..0ade0f1 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -242,8 +242,12 @@ 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
+
 #define PC_Q35_COMPAT_1_7 \
         PC_COMPAT_1_7, \
+        PC_Q35_COMPAT_2_0, \
         {\
             .driver   = "hpet",\
             .property = HPET_INTCAP,\
@@ -262,7 +266,12 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
         PC_COMPAT_1_4, \
         PC_Q35_COMPAT_1_5
 
+#define PC_COMPAT_2_0 \
+        {\
+        }
+
 #define PC_COMPAT_1_7 \
+        PC_COMPAT_2_0, \
         {\
             .driver   = TYPE_USB_DEVICE,\
             .property = "msos-desc",\
-- 
1.9.0