Message ID | 20200227122042.32692-14-grimm@linux.ibm.com |
---|---|
State | Superseded |
Headers | show |
Series | Ultravisor support in skiboot | expand |
Context | Check | Description |
---|---|---|
snowpatch_ozlabs/apply_patch | success | Successfully applied on branch master (82aed17a5468aff6b600ee1694a10a60f942c018) |
snowpatch_ozlabs/snowpatch_job_snowpatch-skiboot | success | Test snowpatch/job/snowpatch-skiboot on branch master |
snowpatch_ozlabs/snowpatch_job_snowpatch-skiboot-dco | success | Signed-off-by present |
diff --git a/hw/imc.c b/hw/imc.c index 3a5382c0..576eac87 100644 --- a/hw/imc.c +++ b/hw/imc.c @@ -603,6 +603,17 @@ imc_mambo: if (pause_microcode_at_boot()) goto err; + /* + * If MSR(S) bit is set, disable IMC nodes. + * IMC nodes need access to specific scom and HOMER region + * which are not accessible from hypervisor. + * + * At this point uv_present cant be used since uv_init() + * is called much later. Hencing checking for the MSR bit here. + */ + if (is_msr_bit_set(MSR_S)) + goto err; + /* * If the dt_attach_root() fails, "imc-counters" node will not be * seen in the device-tree and hence OS should not make any