[PATCH v2 11/16] platform/x86/amd/pmf: dump policy binary data

[Shyam Sundar S K]

Sometimes policy binary retrieved from the BIOS maybe incorrect that can
end up in failing to enable the Smart PC solution feature.

Use print_hex_dump_debug() to dump the policy binary in hex, so that we
debug the issues related to the binary even before sending that to TA.

Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k at amd.com>
---
 drivers/platform/x86/amd/pmf/tee-if.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/platform/x86/amd/pmf/tee-if.c b/drivers/platform/x86/amd/pmf/tee-if.c
index 01f974b55a6a..d16bdecfd43a 100644
--- a/drivers/platform/x86/amd/pmf/tee-if.c
+++ b/drivers/platform/x86/amd/pmf/tee-if.c
@@ -290,6 +290,9 @@ static ssize_t amd_pmf_get_pb_data(struct file *filp, const char __user *buf,
 	if (copy_from_user(dev->policy_buf, buf, dev->policy_sz))
 		return -EFAULT;
 
+	print_hex_dump_debug("(pb):  ", DUMP_PREFIX_OFFSET, 16, 1, dev->policy_buf,
+			     dev->policy_sz, false);
+
 	ret = amd_pmf_start_policy_engine(dev);
 	if (ret)
 		return -EINVAL;
@@ -341,6 +344,10 @@ static int amd_pmf_get_bios_buffer(struct amd_pmf_dev *dev)
 		return -ENOMEM;
 
 	memcpy(dev->policy_buf, dev->policy_base, dev->policy_sz);
+#ifdef CONFIG_AMD_PMF_DEBUG
+	print_hex_dump_debug("(pb):  ", DUMP_PREFIX_OFFSET, 16, 1, dev->policy_buf,
+			     dev->policy_sz, false);
+#endif
 
 	if (pb_side_load)
 		amd_pmf_open_pb(dev, dev->dbgfs_dir);
-- 
2.25.1