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-rw-r--r--hw/virtio-blk.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/hw/virtio-blk.h b/hw/virtio-blk.h
index 79ebccc..f0740d0 100644
--- a/hw/virtio-blk.h
+++ b/hw/virtio-blk.h
@@ -31,8 +31,9 @@
#define VIRTIO_BLK_F_BLK_SIZE 6 /* Block size of disk is available*/
#define VIRTIO_BLK_F_SCSI 7 /* Supports scsi command passthru */
/* #define VIRTIO_BLK_F_IDENTIFY 8 ATA IDENTIFY supported, DEPRECATED */
-#define VIRTIO_BLK_F_WCACHE 9 /* write cache enabled */
+#define VIRTIO_BLK_F_WCE 9 /* write cache enabled */
#define VIRTIO_BLK_F_TOPOLOGY 10 /* Topology information is available */
+#define VIRTIO_BLK_F_CONFIG_WCE 11 /* write cache configurable */
#define VIRTIO_BLK_ID_BYTES 20 /* ID string length */
@@ -49,6 +50,7 @@ struct virtio_blk_config
uint8_t alignment_offset;
uint16_t min_io_size;
uint32_t opt_io_size;
+ uint8_t wce;
} QEMU_PACKED;
/* These two define direction. */
@@ -102,9 +104,11 @@ struct VirtIOBlkConf
BlockConf conf;
char *serial;
uint32_t scsi;
+ uint32_t config_wce;
};
#define DEFINE_VIRTIO_BLK_FEATURES(_state, _field) \
- DEFINE_VIRTIO_COMMON_FEATURES(_state, _field)
+ DEFINE_VIRTIO_COMMON_FEATURES(_state, _field), \
+ DEFINE_PROP_BIT("config-wce", _state, _field, VIRTIO_BLK_F_CONFIG_WCE, true)
#endif