James Bottomley [off-list ref] writes:

On Fri, 2024-06-28 at 10:54 +1000, Michael Ellerman wrote:

quoted

Stefan Berger [off-list ref] writes:

quoted

Fix the following type of error message caused by a missing call to
tpm2_sessions_init() in the IBM vTPM driver:

[    2.987131] tpm tpm0: tpm2_load_context: failed with a TPM error
0x01C4
[    2.987140] ima: Error Communicating to TPM chip, result: -14

Fixes: d2add27cf2b8 ("tpm: Add NULL primary creation")
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
---
 drivers/char/tpm/tpm_ibmvtpm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/char/tpm/tpm_ibmvtpm.c

b/drivers/char/tpm/tpm_ibmvtpm.c
index d3989b257f42..1e5b107d1f3b 100644

--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c

@@ -698,6 +698,10 @@ static int tpm_ibmvtpm_probe(struct vio_dev

*vio_dev,
                rc = tpm2_get_cc_attrs_tbl(chip);
                if (rc)
                        goto init_irq_cleanup;
+
+               rc = tpm2_sessions_init(chip);
+               if (rc)
+                       goto init_irq_cleanup;
        }
 
        return tpm_chip_register(chip);

#regzbot ^introduced: d2add27cf2b8 

Could you please test out the patch I proposed for this:

https://lore.kernel.org/linux-integrity/1302b413a2d7bf3b275133e7fdb04b44bfe2d5e3.camel@HansenPartnership.com/ (local)

Your patch does fix the issue on my PowerVM system, as does Stefan's.

cheers