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-rw-r--r--hw/pc.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/hw/pc.h b/hw/pc.h
index fbcf43d717..da1b102ef1 100644
--- a/hw/pc.h
+++ b/hw/pc.h
@@ -187,4 +187,35 @@ void pc_system_firmware_init(MemoryRegion *rom_memory);
int e820_add_entry(uint64_t, uint64_t, uint32_t);
+#define PC_COMPAT_1_4 \
+ {\
+ .driver = "scsi-hd",\
+ .property = "discard_granularity",\
+ .value = stringify(0),\
+ },{\
+ .driver = "scsi-cd",\
+ .property = "discard_granularity",\
+ .value = stringify(0),\
+ },{\
+ .driver = "scsi-disk",\
+ .property = "discard_granularity",\
+ .value = stringify(0),\
+ },{\
+ .driver = "ide-hd",\
+ .property = "discard_granularity",\
+ .value = stringify(0),\
+ },{\
+ .driver = "ide-cd",\
+ .property = "discard_granularity",\
+ .value = stringify(0),\
+ },{\
+ .driver = "ide-drive",\
+ .property = "discard_granularity",\
+ .value = stringify(0),\
+ },{\
+ .driver = "virtio-blk-pci",\
+ .property = "discard_granularity",\
+ .value = stringify(0),\
+ }
+
#endif