When SaSbQemu platform is configured with multi memory nodes, like numa architecture, os will ignore any memory node in the device tree except the first one.The kernel reads UEFI memory map for memory information when booting via UEFI.However UEFI only allocates the first memory node memory space for SbsaQemu platform, in this scenario we can use the GCD services to add memory spaces for high memory node.
Changes in v2: - get the information of memory via SMC rather than FdtClientDxe. - add a new driver rather than use HighMemDxe.
Xiong Yining (1): SbsaQemu: add memory space for the high memory nodes
Platform/Qemu/SbsaQemu/SbsaQemu.dsc | 3 +- Platform/Qemu/SbsaQemu/SbsaQemu.fdf | 1 + .../SbsaQemuHighMemDxe/SbsaQemuHighMemDxe.inf | 43 ++++++ .../SbsaQemuHighMemDxe/SbsaQemuHighMemDxe.c | 133 ++++++++++++++++++ 4 files changed, 179 insertions(+), 1 deletion(-) create mode 100644 Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuHighMemDxe/SbsaQemuHighMemDxe.inf create mode 100644 Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuHighMemDxe/SbsaQemuHighMemDxe.c