On Tue, Aug 02, 2022 at 03:47:35PM +0800, Xiaoyao Li wrote: > The RAM of TDX VM can be classified into two types: > > - TDX_RAM_UNACCEPTED: default type of TDX memory, which needs to be > accepted by TDX guest before it can be used and will be all-zeros > after being accepted. > > - TDX_RAM_ADDED: the RAM that is ADD'ed to TD guest before running, and > can be used directly. E.g., TD HOB and TEMP MEM that needed by TDVF. > > Maintain TdxRamEntries[] which grabs the initial RAM info from e820 table > and mark each RAM range as default type TDX_RAM_UNACCEPTED. > > Then turn the range of TD HOB and TEMP MEM to TDX_RAM_ADDED since these > ranges will be ADD'ed before TD runs and no need to be accepted runtime. > > The TdxRamEntries[] are later used to setup the memory TD resource HOB > that passes memory info from QEMU to TDVF. > > Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx> Acked-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
