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| author | Anisa Su <anisa.su@samsung.com> | 2025-07-14 18:45:02 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2025-07-15 02:56:40 -0400 |
| commit | 69798d000b95a147f73dfce8c80cff92aa929dcb (patch) | |
| tree | 6345ca98bc575e19a350d27cf7a09a67aca3b85e /include/hw | |
| parent | 0686f160b767615279ca39cfebf77c0b2e67816d (diff) | |
| download | qemu-69798d000b95a147f73dfce8c80cff92aa929dcb.zip qemu-69798d000b95a147f73dfce8c80cff92aa929dcb.tar.gz qemu-69798d000b95a147f73dfce8c80cff92aa929dcb.tar.bz2 | |
hw/mem: cxl_type3: Add DC Region bitmap lock
Add a lock on the bitmap of each CXLDCRegion in preparation for the next
patch which implements FMAPI Set DC Region Configuration. This command
can modify the block size, which means the region's bitmap must be updated
accordingly.
The lock becomes necessary when commands that add/release extents
(meaning they update the bitmap too) are enabled on a different CCI than
the CCI on which the FMAPI commands are enabled.
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Anisa Su <anisa.su@samsung.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20250714174509.1984430-7-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/cxl/cxl_device.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/cxl/cxl_device.h b/include/hw/cxl/cxl_device.h index 7e0a669..42ae5b7 100644 --- a/include/hw/cxl/cxl_device.h +++ b/include/hw/cxl/cxl_device.h @@ -540,6 +540,7 @@ typedef struct CXLDCRegion { uint8_t flags; unsigned long *blk_bitmap; uint64_t supported_blk_size_bitmask; + QemuMutex bitmap_lock; /* Following bools make up dsmas flags, as defined in the CDAT */ bool nonvolatile; bool sharable; |