From: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Date: Thu, 7 Nov 2019 16:24:21 +0800
Subject: efi: libstub/tpm: enable tpm eventlog function for ARM platforms
Git-commit: d99c1ba6a73b9e93e2884b7893fe19e3c082ba03
Patch-mainline: v5.5-rc1
References: bsc#1173267
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>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
---
drivers/firmware/efi/libstub/arm-stub.c | 2 ++
1 file changed, 2 insertions(+)
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);
--
2.28.0