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From: nipun.gupta@nxp.com
To: dev@dpdk.org
Cc: thomas@monjalon.net, ferruh.yigit@intel.com,
	hemant.agrawal@nxp.com, sachin.saxena@nxp.com, stable@dpdk.org,
	Gagandeep Singh <g.singh@nxp.com>,
	Nipun Gupta <nipun.gupta@nxp.com>
Subject: [dpdk-dev] [PATCH v3 10/10] common/dpaax: fix paddr to vaddr invalid conversion
Date: Wed,  6 Oct 2021 22:31:31 +0530	[thread overview]
Message-ID: <20211006170131.32616-11-nipun.gupta@nxp.com> (raw)
In-Reply-To: <20211006170131.32616-1-nipun.gupta@nxp.com>

From: Gagandeep Singh <g.singh@nxp.com>

If some of the VA entries of table are somehow not populated and are
NULL, it can add offset to NULL and return the invalid VA in PA to
VA conversion.

In this patch, adding a check if the VA entry has valid address only
then add offset and return VA.

Fixes: 2f3d633aa593 ("common/dpaax: add library for PA/VA translation table")
Cc: stable@dpdk.org

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 drivers/common/dpaax/dpaax_iova_table.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/common/dpaax/dpaax_iova_table.h b/drivers/common/dpaax/dpaax_iova_table.h
index 230fba8ba0..b1f2300c52 100644
--- a/drivers/common/dpaax/dpaax_iova_table.h
+++ b/drivers/common/dpaax/dpaax_iova_table.h
@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: BSD-3-Clause
- * Copyright 2018 NXP
+ * Copyright 2018-2021 NXP
  */
 
 #ifndef _DPAAX_IOVA_TABLE_H_
@@ -101,6 +101,12 @@ dpaax_iova_table_get_va(phys_addr_t paddr) {
 
 		/* paddr > entry->start && paddr <= entry->(start+len) */
 		index = (paddr_align - entry[i].start)/DPAAX_MEM_SPLIT;
+		/* paddr is within range, but no vaddr entry ever written
+		 * at index
+		 */
+		if ((void *)(uintptr_t)entry[i].pages[index] == NULL)
+			return NULL;
+
 		vaddr = (void *)((uintptr_t)entry[i].pages[index] + offset);
 		break;
 	} while (1);
-- 
2.17.1


  parent reply	other threads:[~2021-10-06 17:02 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-27 12:26 [dpdk-dev] [PATCH 00/11] NXP DPAAx Bus and PMD changes nipun.gupta
2021-09-27 12:26 ` [dpdk-dev] [PATCH 01/11] bus/fslmc: updated MC FW to 10.28 nipun.gupta
2021-10-06 13:28   ` Hemant Agrawal
2021-09-27 12:26 ` [dpdk-dev] [PATCH 02/11] net/dpaa2: support Tx flow redirection action nipun.gupta
2021-09-27 12:26 ` [dpdk-dev] [PATCH 03/11] bus/fslmc: add qbman debug APIs support nipun.gupta
2021-09-27 12:26 ` [dpdk-dev] [PATCH 04/11] net/dpaa2: support multiple Tx queues enqueue for ordered nipun.gupta
2021-09-27 12:26 ` [dpdk-dev] [PATCH 05/11] net/dpaa2: add debug print for MTU set for jumbo nipun.gupta
2021-09-27 12:26 ` [dpdk-dev] [PATCH 06/11] net/dpaa2: add function to generate HW hash key nipun.gupta
2021-09-27 12:26 ` [dpdk-dev] [PATCH 07/11] net/dpaa2: update RSS to support additional distributions nipun.gupta
2021-09-27 12:26 ` [dpdk-dev] [PATCH 08/11] net/dpaa: add comments to explain driver behaviour nipun.gupta
2021-09-27 12:26 ` [dpdk-dev] [PATCH 09/11] raw/dpaa2_qdma: use correct params for config and queue setup nipun.gupta
2021-09-27 12:26 ` [dpdk-dev] [PATCH 10/11] raw/dpaa2_qdma: remove checks for lcore ID nipun.gupta
2021-09-27 12:26 ` [dpdk-dev] [PATCH 11/11] common/dpaax: fix paddr to vaddr invalid conversion nipun.gupta
2021-09-27 13:25 ` [dpdk-dev] [PATCH v1 00/11] NXP DPAAx Bus and PMD changes nipun.gupta
2021-09-27 13:25   ` [dpdk-dev] [PATCH v1 01/11] bus/fslmc: updated MC FW to 10.28 nipun.gupta
2021-09-27 13:25   ` [dpdk-dev] [PATCH v1 02/11] net/dpaa2: support Tx flow redirection action nipun.gupta
2021-09-27 13:25   ` [dpdk-dev] [PATCH v1 03/11] bus/fslmc: add qbman debug APIs support nipun.gupta
2021-09-27 13:25   ` [dpdk-dev] [PATCH v1 04/11] net/dpaa2: support multiple Tx queues enqueue for ordered nipun.gupta
2021-09-27 13:25   ` [dpdk-dev] [PATCH v1 05/11] net/dpaa2: add debug print for MTU set for jumbo nipun.gupta
2021-09-27 13:25   ` [dpdk-dev] [PATCH v1 06/11] net/dpaa2: add function to generate HW hash key nipun.gupta
2021-09-27 13:25   ` [dpdk-dev] [PATCH v1 07/11] net/dpaa2: update RSS to support additional distributions nipun.gupta
2021-09-27 13:25   ` [dpdk-dev] [PATCH v1 08/11] net/dpaa: add comments to explain driver behaviour nipun.gupta
2021-09-27 13:25   ` [dpdk-dev] [PATCH v1 09/11] raw/dpaa2_qdma: use correct params for config and queue setup nipun.gupta
2021-09-27 13:25   ` [dpdk-dev] [PATCH v1 10/11] raw/dpaa2_qdma: remove checks for lcore ID nipun.gupta
2021-09-27 13:25   ` [dpdk-dev] [PATCH v1 11/11] common/dpaax: fix paddr to vaddr invalid conversion nipun.gupta
2021-10-06 12:10 ` [dpdk-dev] [PATCH v2 00/10] NXP DPAAx Bus and PMD changes nipun.gupta
2021-10-06 12:10   ` [dpdk-dev] [PATCH v2 01/10] bus/fslmc: updated MC FW to 10.28 nipun.gupta
2021-10-06 12:10   ` [dpdk-dev] [PATCH v2 02/10] net/dpaa2: support Tx flow redirection action nipun.gupta
2021-10-06 12:10   ` [dpdk-dev] [PATCH v2 03/10] bus/fslmc: add qbman debug APIs support nipun.gupta
2021-10-06 13:31     ` Thomas Monjalon
2021-10-06 17:02       ` Nipun Gupta
2021-10-06 12:10   ` [dpdk-dev] [PATCH v2 04/10] net/dpaa2: add debug print for MTU set for jumbo nipun.gupta
2021-10-06 12:10   ` [dpdk-dev] [PATCH v2 05/10] net/dpaa2: add function to generate HW hash key nipun.gupta
2021-10-06 12:10   ` [dpdk-dev] [PATCH v2 06/10] net/dpaa2: update RSS to support additional distributions nipun.gupta
2021-10-06 12:10   ` [dpdk-dev] [PATCH v2 07/10] net/dpaa: add comments to explain driver behaviour nipun.gupta
2021-10-06 12:10   ` [dpdk-dev] [PATCH v2 08/10] raw/dpaa2_qdma: use correct params for config and queue setup nipun.gupta
2021-10-06 12:10   ` [dpdk-dev] [PATCH v2 09/10] raw/dpaa2_qdma: remove checks for lcore ID nipun.gupta
2021-10-06 12:10   ` [dpdk-dev] [PATCH v2 10/10] common/dpaax: fix paddr to vaddr invalid conversion nipun.gupta
2021-10-06 17:01 ` [dpdk-dev] [PATCH v3 00/10] NXP DPAAx Bus and PMD changes nipun.gupta
2021-10-06 17:01   ` [dpdk-dev] [PATCH v3 01/10] bus/fslmc: updated MC FW to 10.28 nipun.gupta
2021-10-06 17:01   ` [dpdk-dev] [PATCH v3 02/10] net/dpaa2: support Tx flow redirection action nipun.gupta
2021-10-06 17:01   ` [dpdk-dev] [PATCH v3 03/10] bus/fslmc: add qbman debug APIs support nipun.gupta
2021-10-06 17:01   ` [dpdk-dev] [PATCH v3 04/10] net/dpaa2: add debug print for MTU set for jumbo nipun.gupta
2021-10-06 17:01   ` [dpdk-dev] [PATCH v3 05/10] net/dpaa2: add function to generate HW hash key nipun.gupta
2021-10-06 17:01   ` [dpdk-dev] [PATCH v3 06/10] net/dpaa2: update RSS to support additional distributions nipun.gupta
2021-10-06 17:01   ` [dpdk-dev] [PATCH v3 07/10] net/dpaa: add comments to explain driver behaviour nipun.gupta
2021-10-06 17:01   ` [dpdk-dev] [PATCH v3 08/10] raw/dpaa2_qdma: use correct params for config and queue setup nipun.gupta
2021-10-06 17:01   ` [dpdk-dev] [PATCH v3 09/10] raw/dpaa2_qdma: remove checks for lcore ID nipun.gupta
2021-10-06 17:01   ` nipun.gupta [this message]
2021-10-07  7:37   ` [dpdk-dev] [PATCH v3 00/10] NXP DPAAx Bus and PMD changes Thomas Monjalon
2021-10-07  9:38     ` Thomas Monjalon
2021-10-07  9:46       ` Nipun Gupta

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