Dionna Glaze f67ec87704 OvmfPkg: Fix SevMemoryAcceptance memory attributes ... The hard-coded attributes for the re-added memory space should instead forward the replaced descriptor's capabilities. Tested on Linux with efi=debug. Prior to this change, an 8GiB VM running a kernel without unaccepted memory support shows this entry efi: mem94: [Conventional| | |CC| | | | | | | | | | | ] range=[0x0000000100000000-0x000000023fffffff] (5120MB) This does not have the cache capabilities one would expect for system memory, UC|WC|WT|WB. After this change, the same entry becomes efi: mem94: [Conventional| | |CC| | | | | | | |WB|WT|WC|UC] range=[0x0000000100000000-0x000000023fffffff] (5120MB) This has all the expected attributes. Cc: Erdem Aktas <erdemaktas@google.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Min Xu <min.m.xu@intel.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Michael Roth <michael.roth@amd.com> Signed-off-by: Dionna Glaze <dionnaglaze@google.com> [ardb: drop the EFI_MEMORY_CPU_CRYPTO flag - it isn't used anywhere else in EDK2 or Linux so it doesn't actually do anything, and it is unclear whether it is intended for use by the guest in the first place] Reviewed-by: Ard Biesheuvel <ardb@kernel.org>		2023-02-15 00:08:00 +00:00
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AmdSevDxe.c	OvmfPkg: Fix SevMemoryAcceptance memory attributes	2023-02-15 00:08:00 +00:00
AmdSevDxe.inf	OvmfPkg: Implement AcceptAllUnacceptedMemory in AmdSevDxe	2023-01-26 23:00:51 +00:00