Messages in this thread | | | Subject | Re: [PATCH v2] x86/efi: Add additional efi tables for unencrypted mapping checks | From | Tom Lendacky <> | Date | Tue, 25 Feb 2020 11:54:23 -0600 |
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On 2/25/20 11:45 AM, Ard Biesheuvel wrote: > On Tue, 25 Feb 2020 at 18:41, Tom Lendacky <thomas.lendacky@amd.com> wrote: >> >> 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 > > Which one? Surely not the one in the link I included?
I did a git clone of
git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git
and checked out branch next. Not sure what I missed...
Thanks, Tom
> >> --- >> 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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