From: Fan Ni <nifan....@gmail.com> A git tree of this series can be found here (with one extra commit on top for printing out accepted/pending extent list for testing): https://github.com/moking/qemu/tree/dcd-v8-qapi
v7->v8: This version carries over the following two patches from Gregory. 1. hw/cxl/mailbox: change CCI cmd set structure to be a member, not a reference https://gitlab.com/jic23/qemu/-/commit/f44ebc5a455ccdd6535879b0c5824e0d76b04da5 2. hw/cxl/mailbox: interface to add CCI commands to an existing CCI https://gitlab.com/jic23/qemu/-/commit/00a4dd8b388add03c588298f665ee918626296a5 Note, the above two patches are not directly related to DCD emulation. All the following patches in this series are built on top of mainstream QEMU and the above two patches. The most significant changes of v8 is in Patch 11 (Patch 9 in v7). Based on feedback from Markus and Jonathan, the QMP interfaces for adding and releasing DC extents have been redesigned and now they look like below, # add a 128MB extent at offset 0 to region 0 { "execute": "cxl-add-dynamic-capacity", "arguments": { "path": "/machine/peripheral/cxl-memdev0", "host-id":0, "selection-policy": 'prescriptive', "region": 0, "tag": "", "extents": [ { "offset": 0, "len": 134217728 } ] } } Note: tag is optional. # Release a 128MB extent at offset 0 from region 0 { "execute": "cxl-release-dynamic-capacity", "arguments": { "path": "/machine/peripheral/cxl-memdev0", "host-id":0, "removal-policy":"prescriptive", "forced-removal": false, "sanitize-on-release": false, "region": 0, "tag": "", "extents": [ { "offset": 0, "len": 134217728 } ] } } Note: removal-policy, sanitize-on-release and tag are optional. Other changes include, 1. Applied tags to patches. 2. Replaced error_setq with error_append_hint for cxl_create_dc_region error case in Patch 6 (Patch 4 in v7); (Zhijian Li) 3. Updated the error message to include region size information in cxl_create_dc_region. 4. set range1_size_hi to 0 for DCD in build_dvsec. (Jonathan) 5. Several minor format fixes. Thanks Markus, Jonathan, Gregory, and Zhijian for reviewing v7 and svetly Todorov for testing v7. This series pass the same tests as v7 check the cover letter of v7 for more details. Additionally, we tested the QAPI interface for adding/releasing DC extents with optional input parameters. v7: https://lore.kernel.org/linux-cxl/5856b7a4-4082-465f-9f61-b1ec6c35e...@fujitsu.com/T/#mec4c85022ce28c80b241aaf2d5431cadaa45f097 Fan Ni (12): hw/cxl/cxl-mailbox-utils: Add dc_event_log_size field to output payload of identify memory device command hw/cxl/cxl-mailbox-utils: Add dynamic capacity region representative and mailbox command support include/hw/cxl/cxl_device: Rename mem_size as static_mem_size for type3 memory devices hw/mem/cxl_type3: Add support to create DC regions to type3 memory devices hw/mem/cxl-type3: Refactor ct3_build_cdat_entries_for_mr to take mr size instead of mr as argument hw/mem/cxl_type3: Add host backend and address space handling for DC regions hw/mem/cxl_type3: Add DC extent list representative and get DC extent list mailbox support hw/cxl/cxl-mailbox-utils: Add mailbox commands to support add/release dynamic capacity response hw/cxl/events: Add qmp interfaces to add/release dynamic capacity extents hw/mem/cxl_type3: Add DPA range validation for accesses to DC regions hw/cxl/cxl-mailbox-utils: Add superset extent release mailbox support hw/mem/cxl_type3: Allow to release extent superset in QMP interface Gregory Price (2): hw/cxl/mailbox: change CCI cmd set structure to be a member, not a reference hw/cxl/mailbox: interface to add CCI commands to an existing CCI hw/cxl/cxl-mailbox-utils.c | 658 +++++++++++++++++++++++++++++++++++- hw/mem/cxl_type3.c | 634 ++++++++++++++++++++++++++++++++-- hw/mem/cxl_type3_stubs.c | 25 ++ include/hw/cxl/cxl_device.h | 85 ++++- include/hw/cxl/cxl_events.h | 18 + qapi/cxl.json | 143 ++++++++ 6 files changed, 1511 insertions(+), 52 deletions(-) -- 2.43.0
