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hw/mem: cxl_type3: Add dsmas_flags to CXLDCRegion struct

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Add booleans to DC Region struct to represent dsmas flags (defined in CDAT) in
preparation for the next command, which returns the flags in the next mailbox
command 0x5601.

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: <20250714174509.1984430-4-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Anisa Su 2025-07-14 18:44:59 +01:00 • committed by Michael S. Tsirkin
parent 9fde6eb39d
commit 3d1607cc29
2 changed files with 22 additions and 1 deletions
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8
hw/mem/cxl_type3.c
View file

@ -226,10 +226,16 @@ static int ct3_build_cdat_table(CDATSubHeader ***cdat_table, void *priv)
* future.
*/
for (i = 0; i < ct3d->dc.num_regions; i++) {
ct3d->dc.regions[i].nonvolatile = false;
ct3d->dc.regions[i].sharable = false;
ct3d->dc.regions[i].hw_managed_coherency = false;
ct3d->dc.regions[i].ic_specific_dc_management = false;
ct3d->dc.regions[i].rdonly = false;
ct3_build_cdat_entries_for_mr(&(table[cur_ent]),
dsmad_handle++,
ct3d->dc.regions[i].len,
false, true, region_base);
ct3d->dc.regions[i].nonvolatile,
true, region_base);
ct3d->dc.regions[i].dsmadhandle = dsmad_handle - 1;
cur_ent += CT3_CDAT_NUM_ENTRIES;

15
include/hw/cxl/cxl_device.h
View file

@ -133,6 +133,15 @@ typedef enum {
CXL_MBOX_MAX = 0x20
} CXLRetCode;
/* r3.2 Section 7.6.7.6.2: Table 7-66: DSMAS Flags Bits */
typedef enum {
CXL_DSMAS_FLAGS_NONVOLATILE = 2,
CXL_DSMAS_FLAGS_SHARABLE = 3,
CXL_DSMAS_FLAGS_HW_MANAGED_COHERENCY = 4,
CXL_DSMAS_FLAGS_IC_SPECIFIC_DC_MANAGEMENT = 5,
CXL_DSMAS_FLAGS_RDONLY = 6,
} CXLDSMASFlags;
typedef struct CXLCCI CXLCCI;
typedef struct cxl_device_state CXLDeviceState;
struct cxl_cmd;
@ -531,6 +540,12 @@ typedef struct CXLDCRegion {
uint8_t flags;
unsigned long *blk_bitmap;
uint64_t supported_blk_size_bitmask;
/* Following bools make up dsmas flags, as defined in the CDAT */
bool nonvolatile;
bool sharable;
bool hw_managed_coherency;
bool ic_specific_dc_management;
bool rdonly;
} CXLDCRegion;
typedef struct CXLSetFeatureInfo {