On Sat, Feb 19, 2022 at 07:56:41PM +0800, Min Xu wrote: > RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429 > > There are below major changes in this commit. > > 1. SecEntry.nasm > In TDX BSP and APs goes to the same entry point in SecEntry.nasm. > > BSP initialize the temporary stack and then jumps to SecMain, just as > legacy Ovmf does. > > APs spin in a modified mailbox loop using initial mailbox structure. > Its structure defition is in OvmfPkg/Include/IndustryStandard/IntelTdx.h. > APs wait for command to see if the command is for me. If so execute the > command. > > 2. Sec/SecMain.c > When host VMM create the Td guest, the system memory informations are > stored in TdHob, which is a memory region described in Tdx metadata. > The system memory region in TdHob should be accepted before it can be > accessed. So the major task of this patch is to process the TdHobList > to accept the memory. After that TDVF follow the standard OVMF flow > and jump to PEI phase. > > PcdUse1GPageTable is set to FALSE by default in OvmfPkgX64.dsc. It gives > no chance for Intel TDX to support 1G page table. To support 1G page > table this PCD is set to TRUE in OvmfPkgX64.dsc. > > TDX only works on X64, so the code is only valid in X64 arch.
Acked-by: Gerd Hoffmann <kra...@redhat.com> take care, Gerd -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#86886): https://edk2.groups.io/g/devel/message/86886 Mute This Topic: https://groups.io/mt/89252059/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
