On Tue, 05 Apr 2022, Vishal Verma wrote:
Changes since v4[1]: - Collect an ack for patch 1 (Rafael) - Fix commit subject wording in patch 2 (Rafael) - Fix a debug print in patch 2 (Rafael) - Document the reasoning behind calculation of cxl hotplug support (David) - A few definition and variable name changes to make the new _OSC DWORDS generic instead of CXL specific (Rafael) Add support for using the CXL definition of _OSC where applicable, and negotiating CXL specific support and control bits. Patch 1 is a preliminary cleanup that replaces open-coded pointer arithmetic to retrieve the Control DWORD with an inline helper. Patch 2 adds the new CXL _OSC UUID, and uses it instead of the PCI UUID when a root port is CXL enabled. It provides a fallback method for CXL-1.1 platforms that may not implement the CXL-2.0 _OSC. Patch 3 performs negotiation for the CXL specific _OSC support and control bits. I've tested these against a custom qemu[2], which adds the CXL _OSC (in addition to other CXL support). Specifically, _OSC support is added here[3].
For the series, feel free to add my: Reviewed-by: Davidlohr Bueso <dave@xxxxxxxxxxxx>
