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From:   Xinwei Kong <kong.kongxinwei@hisilicon.com>
To:     <ard.biesheuvel@linaro.org>, <mingo@kernel.org>, <will@kernel.org>,
        <kstewart@linuxfoundation.org>, <tglx@linutronix.de>,
        <steve.capper@arm.com>, <linux-efi@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
CC:     <linuxarm@huawei.com>, <zoucao@linux.alibaba.com>,
        <kong.kongxinwei@hisilicon.com>
Subject: [PATCH V2] EFI/stub: tpm: enable tpm eventlog function for ARM64 platform
Date:   Thu, 7 Nov 2019 16:24:21 +0800
Message-ID: <1573115061-34791-1-git-send-email-kong.kongxinwei@hisilicon.com>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

this patch gets tpm eventlog information such as device boot status,event guid
and so on, which will be from bios stage. it use "efi_retrieve_tpm2_eventlog"
functions to get it for ARM64 platorm.

Tested-by: Zou Cao <zoucao@linux.alibaba.com>
Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.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 c382a48..817237c 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);
 
-- 
2.7.4