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authorXinwei Kong <kong.kongxinwei@hisilicon.com>2019-11-07 16:24:21 +0800
committerArd Biesheuvel <ardb@kernel.org>2019-11-07 10:18:45 +0100
commitd99c1ba6a73b9e93e2884b7893fe19e3c082ba03 (patch)
treea45a45d098ccecd7edfc3303e38ab4699568e8f5 /drivers/firmware
parentx86: efi/random: Invoke EFI_RNG_PROTOCOL to seed the UEFI RNG table (diff)
downloadlinux-dev-d99c1ba6a73b9e93e2884b7893fe19e3c082ba03.tar.xz
linux-dev-d99c1ba6a73b9e93e2884b7893fe19e3c082ba03.zip
efi: libstub/tpm: enable tpm eventlog function for ARM platforms
Wire up the existing code for ARM that loads the TPM event log into OS accessible buffers while running the EFI stub so that the kernel proper can access it at runtime. Tested-by: Zou Cao <zoucao@linux.alibaba.com> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/efi/libstub/arm-stub.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/firmware/efi/libstub/arm-stub.c b/drivers/firmware/efi/libstub/arm-stub.c
index c382a48c6678..817237ce2420 100644
--- a/drivers/firmware/efi/libstub/arm-stub.c
+++ b/drivers/firmware/efi/libstub/arm-stub.c
@@ -189,6 +189,8 @@ unsigned long efi_entry(void *handle, efi_system_table_t *sys_table,
goto fail_free_cmdline;
}
+ efi_retrieve_tpm2_eventlog(sys_table);
+
/* Ask the firmware to clear memory on unclean shutdown */
efi_enable_reset_attack_mitigation(sys_table);