hw/arm/virt: CXL enablement including gpex-acpi

[RFC PATCH 0/3] hw/arm/virt: CXL enablement including gpex-acpi

Jonathan Cameron posted 3 patches 3 years, 2 months ago

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Failed in applying to current master (apply log)

hw/arm/Kconfig            |  1 +
hw/arm/virt-acpi-build.c  | 27 +++++++++++++++++++++++++++
hw/arm/virt.c             |  3 ++-
hw/cxl/cxl-device-utils.c |  4 ++--
hw/pci-host/gpex-acpi.c   | 22 +++++++++++++++++++---
5 files changed, 51 insertions(+), 6 deletions(-)

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[RFC PATCH 0/3] hw/arm/virt: CXL enablement including gpex-acpi

Posted by Jonathan Cameron 3 years, 2 months ago

Very basic initial enablement of CXL on arm virt with relevant ACPI table
construction. Includes changes in gpex-acpi to ensure correct DSDT for
any pci_expand_bridge/pxb-cxl bridges.  Note not looking to do the
primary root bridge yet.

Based on Ben's tree cxl-2.0v3 at https://gitlab.com/bwidawsk/qemu

To actually get the memory appropriately exposed to the OS a few additional
changes are needed as discussed in thread
https://lore.kernel.org/qemu-devel/20210128174009.00007536@Huawei.com/

I will rebase this on future versions of Ben's series as needed.

Jonathan Cameron (3):
  hw/pci-host/gpex-acpi: Add support for dsdt construction for pxb-cxl
  hw/arm/virt: Basic CXL enablement on pci_expander_bridge instances
    pxb-cxl
  hw/cxl/cxl-device-utils: Allow incorrect read lengths

 hw/arm/Kconfig            |  1 +
 hw/arm/virt-acpi-build.c  | 27 +++++++++++++++++++++++++++
 hw/arm/virt.c             |  3 ++-
 hw/cxl/cxl-device-utils.c |  4 ++--
 hw/pci-host/gpex-acpi.c   | 22 +++++++++++++++++++---
 5 files changed, 51 insertions(+), 6 deletions(-)

-- 
2.19.1