I prefer we still let caller to provide the HOB pointer. This also eliminates a global variable "mAcpiBoardInfo".
You could change the BuildHobFromAcpi() to return the HOB pointer. So that the pointer can be directly passed to ParseMemoryInfo(). Thanks, Ray > -----Original Message----- > From: Dong, Guo <guo.d...@intel.com> > Sent: Monday, September 27, 2021 2:32 AM > To: Ni, Ray <ray...@intel.com>; devel@edk2.groups.io > Cc: Ma, Maurice <maurice...@intel.com>; You, Benjamin <benjamin....@intel.com> > Subject: RE: [`edk2-devel][PATCH] UefiPayloadPkg: Build a HOB from bootloader > ACPI table > > > Hi Ray, > > In this patch, we added a shared file AcpiTable.c for both universal payload > and non-universal payload. > The exposed API from this file is: EFI_STATUS BuildHobFromAcpi ( IN > UINT64 AcpiTableBase); > This function will build an ACPI board HOB based on the information from ACPI > table. > > For universal payload, it calls this function to build a hob for other > modules. The main function is very simple and clear. > > For non-universal payload, ACPI board HOB is used in the ParseMemoryInfo() > callback for PCIE base info. > So we could get this HOB from the caller, or get this HOB inside the > callback. I select to do it inside the callback. > > Thanks, > Guo > > -----Original Message----- > From: Ni, Ray <ray...@intel.com> > Sent: Saturday, September 25, 2021 7:48 PM > To: Dong, Guo <guo.d...@intel.com>; devel@edk2.groups.io > Cc: Ma, Maurice <maurice...@intel.com>; You, Benjamin <benjamin....@intel.com> > Subject: RE: [`edk2-devel][PATCH] UefiPayloadPkg: Build a HOB from bootloader > ACPI table > > > - Status = ParseMemoryInfo (MemInfoCallbackMmio, &AcpiBoardInfo); > > + Status = ParseMemoryInfo (MemInfoCallbackMmio, NULL); > > Guo, > I am curious why you changed this part. > Without this change, MemInfoCallbackMmio() can get the AcpiBoardInfo from the > parameter. > With the change, it has to locate the Guided HOB itself. > > > Other parts look good to me. > > Thanks, > Ray -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#81192): https://edk2.groups.io/g/devel/message/81192 Mute This Topic: https://groups.io/mt/85855017/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
