v2:
- 5 patch series, first 4 are pull-aheads that can be merged separately
- cci: rebased on 8-30 branch from jic23, dropped cci patches
- mailbox: dropped MHD commands, integrated into niagara (for now)
- mailbox: refactor CCI defines to avoid redefinition in niagara
- type3: cleanup duplicate typecasting
- type3: expose ct3 functions so inheriting devices may access them
- type3: add optional mhd validation function for memory access
- niagara: refactor to make niagara inherit type3 and override behavior
- niagara: refactor command definitions and types into header to make
understanding the device a bit easier for users
- style and formatting
This patch set includes an emulation of the SK hynix Niagara MHSLD
platform with custom CCI commands that allow for isolation of memory
blocks between attached hosts.
This device allows hosts to request memory blocks directly from the device,
rather than requiring full the DCD command set. As a matter of simplicity,
this is beneficial to for testing and applications of dynamic memory
pooling on top of the 1.1 and 2.0 specification.
Note that these CCI commands are not servicable without a proper driver or
the kernel allowing raw CXL commands to be passed through the mailbox
driver, so users should enable `CONFIG_CXL_MEM_RAW_COMMANDS=y` on the
kernel of their QEMU instance if they wish to test it
Signed-off-by: Gregory Price <gregory.pr...@memverge.com>
Gregory Price (5):
cxl/mailbox: move mailbox effect definitions to a header
cxl/type3: Cleanup multiple CXL_TYPE3() calls in read/write functions
cxl/type3: Expose ct3 functions so that inheriters can call them
cxl/type3: add an optional mhd validation function for memory accesses
cxl/vendor: SK hynix Niagara Multi-Headed SLD Device
hw/cxl/Kconfig | 4 +
hw/cxl/cxl-mailbox-utils.c | 35 +-
hw/cxl/meson.build | 2 +
hw/cxl/vendor/meson.build | 1 +
hw/cxl/vendor/skhynix/.gitignore | 1 +
hw/cxl/vendor/skhynix/init_niagara.c | 99 +++++
hw/cxl/vendor/skhynix/meson.build | 1 +
hw/cxl/vendor/skhynix/skhynix_niagara.c | 516 ++++++++++++++++++++++++
hw/cxl/vendor/skhynix/skhynix_niagara.h | 169 ++++++++
hw/mem/cxl_type3.c | 33 +-
include/hw/cxl/cxl_device.h | 8 +
include/hw/cxl/cxl_mailbox.h | 18 +
12 files changed, 863 insertions(+), 24 deletions(-)
create mode 100644 hw/cxl/vendor/meson.build
create mode 100644 hw/cxl/vendor/skhynix/.gitignore
create mode 100644 hw/cxl/vendor/skhynix/init_niagara.c
create mode 100644 hw/cxl/vendor/skhynix/meson.build
create mode 100644 hw/cxl/vendor/skhynix/skhynix_niagara.c
create mode 100644 hw/cxl/vendor/skhynix/skhynix_niagara.h
create mode 100644 include/hw/cxl/cxl_mailbox.h
--
2.39.1
