Messages in this thread Patch in this message | | | From | Tom Lendacky <> | Subject | [PATCH v2] x86/efi: Add additional efi tables for unencrypted mapping checks | Date | Tue, 25 Feb 2020 11:41:06 -0600 |
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When booting with SME active, EFI tables must be mapped unencrypted since they were built by UEFI in unencrypted memory. Update the list of tables to be checked during early_memremap() processing to account for new EFI tables.
This fixes a bug where an EFI TPM log table has been created by UEFI, but it lives in memory that has been marked as usable rather than reserved.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
--- Changes since v1: - Re-spun against EFI tree --- arch/x86/platform/efi/efi.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 43b24e149312..c6ca959e2366 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -88,6 +88,9 @@ static const unsigned long * const efi_tables[] = { #ifdef CONFIG_EFI_RCI2_TABLE &rci2_table_phys, #endif + &efi.rng_seed, + &efi.tpm_log, + &efi.tpm_final_log, }; u64 efi_setup; /* efi setup_data physical address */ -- 2.17.1
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