From 1a39ab87b7684824de83985726a2bfe535223ef1 Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Sat, 6 Feb 2021 14:23:34 -0700
Subject: [PATCH] tpm: Add debugging of request in tpm_sendrecv_command()
The response is shown but not the request. Update the code to show both
if debugging is enabled.
Use a 'uint' type for size so it matches the register-word size on both
32- and 64-bit machines.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
lib/tpm-common.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/lib/tpm-common.c b/lib/tpm-common.c
index e4af87f76a..4277846fdd 100644
--- a/lib/tpm-common.c
+++ b/lib/tpm-common.c
@@ -166,6 +166,7 @@ u32 tpm_sendrecv_command(struct udevice *dev, const void *command,
u8 response_buffer[COMMAND_BUFFER_SIZE];
size_t response_length;
int i;
+ uint size;
if (response) {
response_length = *size_ptr;
@@ -174,8 +175,13 @@ u32 tpm_sendrecv_command(struct udevice *dev, const void *command,
response_length = sizeof(response_buffer);
}
- err = tpm_xfer(dev, command, tpm_command_size(command),
- response, &response_length);
+ size = tpm_command_size(command);
+ log_debug("TPM request [size:%d]: ", size);
+ for (i = 0; i < size; i++)
+ log_debug("%02x ", ((u8 *)command)[i]);
+ log_debug("\n");
+
+ err = tpm_xfer(dev, command, size, response, &response_length);
if (err < 0)
return err;
--
2.39.5