Messages in this thread Patch in this message | | | From | Ard Biesheuvel <> | Subject | [PATCH 1/6] efi/x86: Add TPM related EFI tables to unencrypted mapping checks | Date | Fri, 28 Feb 2020 13:14:03 +0100 |
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From: Tom Lendacky <thomas.lendacky@amd.com>
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 the EFI TPM 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.
Cc: <stable@vger.kernel.org> # v5.4+ Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Link: https://lore.kernel.org/r/4144cd813f113c20cdfa511cf59500a64e6015be.1582662842.git.thomas.lendacky@amd.com Signed-off-by: Ard Biesheuvel <ardb@kernel.org> --- arch/x86/platform/efi/efi.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 43b24e149312..0a8117865430 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -88,6 +88,8 @@ static const unsigned long * const efi_tables[] = { #ifdef CONFIG_EFI_RCI2_TABLE &rci2_table_phys, #endif + &efi.tpm_log, + &efi.tpm_final_log, }; u64 efi_setup; /* efi setup_data physical address */ -- 2.17.1
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