On Sun, Mar 13, 2022 at 08:41:09AM +0800, Min Xu wrote: > RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429 > > Host VMM may inject OptionRom which is untrusted in Td guest. So PCI > OptionRom needs to be ignored if it is Td guest. According to > "Table 20. ACPI 2.0 & 3.0 QWORD Address Space Descriptor Usage" > PI spec 1.7, type-specific flags can be set to 0 when Address > Translation Offset == 6 to skip device option ROM. > > Cc: Michael D Kinney <[email protected]> > Cc: Brijesh Singh <[email protected]> > Cc: Erdem Aktas <[email protected]> > Cc: James Bottomley <[email protected]> > Cc: Jiewen Yao <[email protected]> > Cc: Tom Lendacky <[email protected]> > Cc: Gerd Hoffmann <[email protected]> > Signed-off-by: Min Xu <[email protected]>
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