On Tue, Aug 02, 2022 at 03:47:30PM +0800, Xiaoyao Li wrote: > From: Isaku Yamahata <isaku.yamahata@xxxxxxxxx> > > TDX VM needs to boot with its specialized firmware, Trusted Domain > Virtual Firmware (TDVF). QEMU needs to parse TDVF and map it in TD > guest memory prior to running the TDX VM. > > A TDVF Metadata in TDVF image describes the structure of firmware. > QEMU refers to it to setup memory for TDVF. Introduce function > tdvf_parse_metadata() to parse the metadata from TDVF image and store > the info of each TDVF section. > > TDX metadata is located by a TDX metadata offset block, which is a > GUID-ed structure. The data portion of the GUID structure contains > only an 4-byte field that is the offset of TDX metadata to the end > of firmware file. > > Select X86_FW_OVMF when TDX is enable to leverage existing functions > to parse and search OVMF's GUID-ed structures. > > Signed-off-by: Isaku Yamahata <isaku.yamahata@xxxxxxxxx> > Co-developed-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx> > Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx> Acked-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
