Previously patches 40 and 41 of [PATCH v10 00/45] CXl 2.0 emulation Support https://lore.kernel.org/qemu-devel/20220429144110.25167-45-jonathan.came...@huawei.com/#r
Now the base CXL support including for x86/pc is upstream (patches 1-39) there are no dependencies between the next few CXL elements in my queue so they can be reviewed / merged in parallel. Hence I'll be sending switch support (43-45) separately and hopefully DOE / CDAT support in a few days. I'm assuming this particular series should go through the arm tree if the maintainers are happy? Changes since v10: - CXL machine setup is now entirely from the supporting machines rather than via code in machine.c and vl.c. Change made for x86 in: https://lore.kernel.org/qemu-devel/20220608145440.26106-1-jonathan.came...@huawei.com/ - Dropped Ben's sign off from patch 1 which resulted from him carrying these patches of mine for a while. It isn't a useful bit of history to carry now they are back to me. This short series adds support for CXL host bridges and CXL fixed memory windows on arm/virt. Two types of memory region are needed: 1. Register space for CXL host bridges (static allowance for 16) 2. CXL fixed memory windows: Ranges of host PA space which are statically mapped to an interleave across 1 or more CXL host bridges. Both of these types of region are described via appropriate ACPI tables. As the CEDT table is created with the same code as for x86 I don't think there is much value in duplicating the existing CXL bios-tables test. The second patch adds a single complex test. We test a lot more configurations on x86 but it does not seem useful to duplicate them all on ARM and this single test should act as a smoke test for any problems that occur. Run through CI at: https://gitlab.com/jic23/qemu/-/pipelines/564934276 Intermittent (unrelated I assume) failure in msys64 aio-test resolved with a retry. Thanks, Jonathan Jonathan Cameron (2): hw/arm/virt: Basic CXL enablement on pci_expander_bridge instances pxb-cxl qtest/cxl: Add aarch64 virt test for CXL hw/arm/virt-acpi-build.c | 34 ++++++++++++++++++++++++++++ hw/arm/virt.c | 44 ++++++++++++++++++++++++++++++++++++ include/hw/arm/virt.h | 3 +++ tests/qtest/cxl-test.c | 48 ++++++++++++++++++++++++++++++++-------- tests/qtest/meson.build | 1 + 5 files changed, 121 insertions(+), 9 deletions(-) -- 2.32.0
