[Skiboot] [PATCH v8 21/24] MPIPL: Invalidate dump

[Vasant Hegde]

Post dump process, kernel sends FREE_PRESERVE_MEMEORY notification
to OPAL. OPAL will clear metadata section and tags.

Signed-off-by: Vasant Hegde <hegdevasant at linux.vnet.ibm.com>
---
 core/opal-dump.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/core/opal-dump.c b/core/opal-dump.c
index e53991784..555908114 100644
--- a/core/opal-dump.c
+++ b/core/opal-dump.c
@@ -309,6 +309,16 @@ static int64_t opal_mpipl_update(enum mpipl_ops ops,
 			prlog(PR_NOTICE, "Payload unregistered for MPIPL\n");
 		break;
 	case OPAL_MPIPL_FREE_PRESERVED_MEMORY:
+		/* Clear tags */
+		memset(&mpipl_tags, 0, (sizeof(u64) * MAX_MPIPL_TAGS));
+		max_tags = 0;
+		/* Release memory */
+		free(mpipl_opal_data);
+		mpipl_opal_data = NULL;
+		/* Clear MDRT table */
+		memset((void *)MDRT_TABLE_BASE, 0, MDRT_TABLE_SIZE);
+		/* Set MDRT count to max allocated count */
+		ntuple_mdrt->act_cnt = MDRT_TABLE_SIZE / sizeof(struct mdrt_table);
 		rc = OPAL_SUCCESS;
 		break;
 	default:
-- 
2.14.3