qemu/hw/mem
Jonathan Cameron 5fcc499ee3 mem/cxl_type3: Add read and write functions for associated hostmem.
Once a read or write reaches a CXL type 3 device, the HDM decoders
on the device are used to establish the Device Physical Address
which should be accessed.  These functions peform the required maths
and then use a device specific address space to access the
hostmem->mr to fullfil the actual operation.  Note that failed writes
are silent, but failed reads return poison.  Note this is based
loosely on:

https://lore.kernel.org/qemu-devel/20200817161853.593247-6-f4bug@amsat.org/
[RFC PATCH 0/9] hw/misc: Add support for interleaved memory accesses

Only lightly tested so far.  More complex test cases yet to be written.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20220429144110.25167-33-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-05-13 07:57:26 -04:00
..
cxl_type3.c mem/cxl_type3: Add read and write functions for associated hostmem. 2022-05-13 07:57:26 -04:00
Kconfig hw/cxl/device: Add a memory device (8.2.8.5) 2022-05-13 06:13:36 -04:00
memory-device.c
meson.build hw/cxl/device: Add a memory device (8.2.8.5) 2022-05-13 06:13:36 -04:00
npcm7xx_mc.c
nvdimm.c
pc-dimm.c
sparse-mem.c
trace-events
trace.h