Re: [edk2-devel] [PATCH 1/1] SbsaQemu: AcpiDxe: Create SRAT table at runtime

["Marcin Juszkiewicz" <marcin.juszkiewicz@linaro.org>]

W dniu 20.02.2024 o 9:03 AM, Xiong Yining pisze:
> This is beacuse UEFI only allocates the first memory node memory space 
> for SbsaQemu platform,  i refer to implemet of "OvmfPkg/Fdt/HighMemDxe" 
> and add the support for other memory nodes via GCD services. Maybe you 
> can apply patch "support multi memory nodes" together with this patch.

Collected patches:

6ea06a5ae4c9 (tag: multi-node-v3) SbsaQemu: add memory space for the high memory nodes
6cad2691e06e (tag: srat-v2) SbsaQemu: AcpiDxe: Create SRAT table at runtime
86c5fc908bd4 Platform/SbsaQemu: add DeviceTree fallbacks to parse memory information
a2e8ffb1e046 Platform/SbsaQemu: get the information of memory via SMC calls
6007fcaae876 Platform/SbsaQemu: hang if there is no cpu information
dc9360e2e2c8 Platform/SbsaQemu: move FdtHandlerLib to SbsaQemuHardwareInfoLib
5a0a7fa00139 Platform/SbsaQemu: use PcdCoreCount directly
9bebc3a2a7b9 Platform/SbsaQemu: read amount of cpus during init
e7ec1d2d346b (tag: nodt-v5) Platform/SbsaQemu: add SbsaQemuHardwareInfoLib

And effect is nice.

QEMU args:

-smp 4,sockets=4,maxcpus=4
-m 4G,slots=2,maxmem=5G
-object memory-backend-ram,size=1G,id=m0
-object memory-backend-ram,size=3G,id=m1
-numa node,nodeid=0,cpus=0-1,memdev=m0
-numa node,nodeid=1,cpus=2,memdev=m1
-numa node,nodeid=2,cpus=3

EDK2 reports 4GB ram, Linux gets 4GB ram too.


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