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hw/cxl/cxl-mailbox-utils: Add support for feature commands (8.2.9.6)

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CXL spec 3.1 section 8.2.9.6 describes optional device specific features.
CXL devices supports features with changeable attributes.
Get Supported Features retrieves the list of supported device specific
features. The settings of a feature can be retrieved using Get Feature and
optionally modified using Set Feature.

Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Link: https://lore.kernel.org/r/20240223085902.1549-2-shiju.jose@huawei.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20240705123039.963781-3-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:
Shiju Jose 2024-07-05 13:30:36 +01:00 • committed by Michael S. Tsirkin
parent 25da36d5d0
commit d80378943a
2 changed files with 268 additions and 0 deletions
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10
include/hw/cxl/cxl_device.h
View file

@ -464,6 +464,14 @@ typedef struct CXLDCRegion {
unsigned long *blk_bitmap;
} CXLDCRegion;
typedef struct CXLSetFeatureInfo {
QemuUUID uuid;
uint8_t data_transfer_flag;
bool data_saved_across_reset;
uint16_t data_offset;
size_t data_size;
} CXLSetFeatureInfo;
struct CXLType3Dev {
/* Private */
PCIDevice parent_obj;
@ -501,6 +509,8 @@ struct CXLType3Dev {
CXLPoisonList scan_media_results;
bool scan_media_hasrun;
CXLSetFeatureInfo set_feat_info;
struct dynamic_capacity {
HostMemoryBackend *host_dc;
AddressSpace host_dc_as;