On Fri, 15 Mar 2024 at 10:49, Chao Li <lic...@loongson.cn> wrote: > > Hi Gerd, > > > Thanks, > Chao > On 2024/3/15 17:33, Gerd Hoffmann wrote: > > On Mon, Mar 11, 2024 at 05:39:02PM +0800, Chao Li wrote: > > Add a serial port hook library in LoongArchVirt named > Fdt16550SerialProtHookLib, this library is referenced from ArmVirtPkg. > > LoongArch QEMU virtual machine uses register of LOONGARCH_CSR_KS1 to > transfer serial port base addres from the PEI phase to the DXE phase. > > Why use LOONGARCH_CSR_KS1? Can't you simply set PcdSerialRegisterBase? > > The LoongArch QEMU PEI stage runs on flash and does not allow set PCD > operations(memory have not enabled), so the address can only be transferred > through a SAVE register. >
Then maybe use a HOB instead? -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#116797): https://edk2.groups.io/g/devel/message/116797 Mute This Topic: https://groups.io/mt/104859892/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
