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| author | Mario Limonciello <mario.limonciello@amd.com> | 2024-02-16 19:41:06 -0600 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2024-02-19 13:39:40 +0100 |
| commit | 20545af302bb1f6a67c0348b64032c11ecfa77ba (patch) | |
| tree | 62031f2064116e9c829f374da344b03bcb8c4881 | |
| parent | b2b6fa6f5c57848c95ca7bf1f0a7d1bb340c3460 (diff) | |
| download | linux-stable-20545af302bb1f6a67c0348b64032c11ecfa77ba.tar.gz linux-stable-20545af302bb1f6a67c0348b64032c11ecfa77ba.tar.bz2 linux-stable-20545af302bb1f6a67c0348b64032c11ecfa77ba.zip | |
platform/x86/amd/pmf: Add debugging message for missing policy data
If a machine advertises Smart PC support but is missing policy data
show a debugging message to help clarify why Smart PC wasn't enabled.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20240217014107.113749-2-mario.limonciello@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
| -rw-r--r-- | drivers/platform/x86/amd/pmf/tee-if.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/platform/x86/amd/pmf/tee-if.c b/drivers/platform/x86/amd/pmf/tee-if.c index 8b7e3f87702e..1359ab340f7c 100644 --- a/drivers/platform/x86/amd/pmf/tee-if.c +++ b/drivers/platform/x86/amd/pmf/tee-if.c @@ -252,8 +252,10 @@ static int amd_pmf_start_policy_engine(struct amd_pmf_dev *dev) cookie = readl(dev->policy_buf + POLICY_COOKIE_OFFSET); length = readl(dev->policy_buf + POLICY_COOKIE_LEN); - if (cookie != POLICY_SIGN_COOKIE || !length) + if (cookie != POLICY_SIGN_COOKIE || !length) { + dev_dbg(dev->dev, "cookie doesn't match\n"); return -EINVAL; + } /* Update the actual length */ dev->policy_sz = length + 512; |