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hw/cxl/cdat: CXL CDAT Data Object Exchange implementation

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The Data Object Exchange implementation of CXL Coherent Device Attribute
Table (CDAT). This implementation is referring to "Coherent Device
Attribute Table Specification, Rev. 1.03, July. 2022" and "Compute
Express Link Specification, Rev. 3.0, July. 2022"

This patch adds core support that will be shared by both
end-points and switch port emulation.

Signed-off-by: Huai-Cheng Kuo <hchkuo@avery-design.com.tw>
Signed-off-by: Chris Browy <cbrowy@avery-design.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20221014151045.24781-4-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:
Huai-Cheng Kuo 2022-10-14 16:10:43 +01:00 • committed by Michael S. Tsirkin
parent 23325c8df4
commit aba578bdac
6 changed files with 401 additions and 0 deletions
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3
include/hw/cxl/cxl_device.h
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@ -243,6 +243,9 @@ struct CXLType3Dev {
AddressSpace hostmem_as;
CXLComponentState cxl_cstate;
CXLDeviceState cxl_dstate;
/* DOE */
DOECap doe_cdat;
};
#define TYPE_CXL_TYPE3 "cxl-type3"