diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/block.h | 11 | ||||
| -rw-r--r-- | include/hw/i386/pc.h | 4 |
2 files changed, 10 insertions, 5 deletions
diff --git a/include/block/block.h b/include/block/block.h index f85e3a6ed3..4e0871aaf9 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -43,11 +43,12 @@ typedef struct BlockFragInfo { typedef enum { BDRV_REQ_COPY_ON_READ = 0x1, BDRV_REQ_ZERO_WRITE = 0x2, - /* The BDRV_REQ_MAY_UNMAP flag is used to indicate that the block driver - * is allowed to optimize a write zeroes request by unmapping (discarding) - * blocks if it is guaranteed that the result will read back as - * zeroes. The flag is only passed to the driver if the block device is - * opened with BDRV_O_UNMAP. + + /* + * The BDRV_REQ_MAY_UNMAP flag is used in write_zeroes requests to indicate + * that the block driver should unmap (discard) blocks if it is guaranteed + * that the result will read back as zeroes. The flag is only passed to the + * driver if the block device is opened with BDRV_O_UNMAP. */ BDRV_REQ_MAY_UNMAP = 0x4, diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 654003f44c..6894f37df1 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -317,6 +317,10 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *); #define PC_COMPAT_2_11 \ HW_COMPAT_2_11 \ {\ + .driver = TYPE_X86_CPU,\ + .property = "x-migrate-smi-count",\ + .value = "off",\ + },{\ .driver = "Skylake-Server" "-" TYPE_X86_CPU,\ .property = "clflushopt",\ .value = "off",\ |