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mem/cxl-type3: Add sn option to provide serial number for PCI ecap

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The Device Serial Number Extended Capability PCI r6.0 sec 7.9.3
provides a standard way to provide a device serial number as
an IEEE defined 64-bit extended unique identifier EUI-64.

CXL 2.0 section 8.1.12.2 Memory Device PCIe Capabilities and
Extended Capabilities requires this to be used to uniquely
identify CXL memory devices.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20220923161835.9805-1-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Ben Widawsky <bwidawsk@kernel.org>
This commit is contained in:
Jonathan Cameron 2022-09-23 17:18:35 +01:00 • committed by Michael S. Tsirkin
parent 0a17270761
commit 9c769e0446
2 changed files with 14 additions and 1 deletions
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1
include/hw/cxl/cxl_device.h
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@ -237,6 +237,7 @@ struct CXLType3Dev {
/* Properties */
HostMemoryBackend *hostmem;
HostMemoryBackend *lsa;
uint64_t sn;
/* State */
AddressSpace hostmem_as;