Patch set updated for coreboot: 99e7cb4 cpu/amd (non-AGESA): Fix CPU id_mapping_table

[Kyösti Mälkki]

Kyösti Mälkki ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4522

-gerrit

commit 99e7cb4f1d685c5887642a3e523d1fa705e61f9a
Author: Kyösti Mälkki 
Date:   Thu Dec 12 06:50:21 2013 +0200

cpu/amd (non-AGESA): Fix CPU id_mapping_table

In case a matching item is not in the array, the invalid use of
    sizeof will cause access beyond the end of array.

Change-Id: I2be6d8f046d06702be21ed0155529c1bf41ede26
    Signed-off-by: Kyösti Mälkki 
---
 src/cpu/amd/model_10xxx/update_microcode.c         | 47 +++++++--------
 src/cpu/amd/model_fxx/model_fxx_update_microcode.c | 70 ++++++++++------------
 2 files changed, 56 insertions(+), 61 deletions(-)

diff --git a/src/cpu/amd/model_10xxx/update_microcode.c b/src/cpu/amd/model_10xxx/update_microcode.c
index 95624e9..dcaaf18 100644
--- a/src/cpu/amd/model_10xxx/update_microcode.c
+++ b/src/cpu/amd/model_10xxx/update_microcode.c
@@ -18,6 +18,7 @@
  */

#include <stdint.h>
+#include <stdlib.h>
 #include <console/console.h>
 #include <cpu/amd/microcode.h>

@@ -56,38 +57,36 @@ static const u8 microcode_updates[] __attribute__ ((aligned(16))) = {
    0x0, 0x0, 0x0, 0x0,
 };

-static u32 get_equivalent_processor_rev_id(u32 orig_id) {
-	static unsigned id_mapping_table[] = {
-		0x100f00, 0x1000,
-		0x100f01, 0x1000,
-		0x100f02, 0x1000,
-		0x100f20, 0x1020,
-		0x100f21, 0x1020,
-		0x100f2A, 0x1020,
-		0x100f22, 0x1022,
-		0x100f23, 0x1022,
-		0x100f42, 0x1041,
-		0x100f43, 0x1043,
-		0x100f62, 0x1062,
-		0x100f63, 0x1043,
-		0x100f81, 0x1081,
-		0x100fa0, 0x10A0,
-	};
+static const u32 id_mapping_table[] = {
+	0x100f00, 0x1000,
+	0x100f01, 0x1000,
+	0x100f02, 0x1000,
+	0x100f20, 0x1020,
+	0x100f21, 0x1020,
+	0x100f2A, 0x1020,
+	0x100f22, 0x1022,
+	0x100f23, 0x1022,
+	0x100f42, 0x1041,
+	0x100f43, 0x1043,
+	0x100f62, 0x1062,
+	0x100f63, 0x1043,
+	0x100f81, 0x1081,
+	0x100fa0, 0x10A0,
+};
+#define ID_MAPPING_TABLE_LEN ARRAY_SIZE(id_mapping_table)

-	u32 new_id;
+static unsigned get_equivalent_processor_rev_id(unsigned orig_id)
+{
+	unsigned new_id = 0;
    int i;

-	new_id = 0;
-
-	for (i = 0; i < sizeof(id_mapping_table); i += 2 ) {
-		if(id_mapping_table[i]==orig_id) {
+	for (i = 0; i < ID_MAPPING_TABLE_LEN; i += 2) {
+		if (id_mapping_table[i]==orig_id) {
    		new_id = id_mapping_table[i + 1];
    		break;
    	}
    }
-
    return new_id;
-
 }

void update_microcode(u32 cpu_deviceid)
diff --git a/src/cpu/amd/model_fxx/model_fxx_update_microcode.c b/src/cpu/amd/model_fxx/model_fxx_update_microcode.c
index 4a53fea..3e3afc6 100644
--- a/src/cpu/amd/model_fxx/model_fxx_update_microcode.c
+++ b/src/cpu/amd/model_fxx/model_fxx_update_microcode.c
@@ -19,6 +19,8 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */

+#include <stdint.h>
+#include <stdlib.h>
 #include <console/console.h>
 #include <cpu/amd/microcode.h>

@@ -40,49 +42,43 @@ static uint8_t microcode_updates[] __attribute__ ((aligned(16))) = {
         0x0, 0x0, 0x0, 0x0,
 };

-static unsigned get_equivalent_processor_rev_id(unsigned orig_id) {
-	static unsigned id_mapping_table[] = {
-	#if !CONFIG_K8_REV_F_SUPPORT
-	        0x0f48, 0x0048,
-	        0x0f58, 0x0048,
-
-	        0x0f4a, 0x004a,
-	        0x0f5a, 0x004a,
-	        0x0f7a, 0x004a,
-	        0x0f82, 0x004a,
-	        0x0fc0, 0x004a,
-	        0x0ff0, 0x004a,
-
-	        0x10f50, 0x0150,
-	        0x10f70, 0x0150,
-	        0x10f80, 0x0150,
-	        0x10fc0, 0x0150,
-	        0x10ff0, 0x0150,
-
-	        0x20f10, 0x0210,
-	        0x20f12, 0x0210,
-	        0x20f32, 0x0210,
-	        0x20fb1, 0x0210,
-	#endif
-
-	#if CONFIG_K8_REV_F_SUPPORT
-
-	#endif
-
-	};
+static const u32 id_mapping_table[] = {
+#if !CONFIG_K8_REV_F_SUPPORT
+        0x0f48, 0x0048,
+        0x0f58, 0x0048,
+
+        0x0f4a, 0x004a,
+        0x0f5a, 0x004a,
+        0x0f7a, 0x004a,
+        0x0f82, 0x004a,
+        0x0fc0, 0x004a,
+        0x0ff0, 0x004a,
+
+        0x10f50, 0x0150,
+        0x10f70, 0x0150,
+        0x10f80, 0x0150,
+        0x10fc0, 0x0150,
+        0x10ff0, 0x0150,
+
+        0x20f10, 0x0210,
+        0x20f12, 0x0210,
+        0x20f32, 0x0210,
+        0x20fb1, 0x0210,
+#endif
+};
+#define ID_MAPPING_TABLE_LEN ARRAY_SIZE(id_mapping_table)

-	unsigned new_id;
+static unsigned get_equivalent_processor_rev_id(unsigned orig_id)
+{
+	unsigned new_id = 0;
    int i;

-	new_id = 0;
-
-	for(i=0; i<sizeof(id_mapping_table); i+=2 ) {
-		if(id_mapping_table[i]==orig_id) {
-			new_id = id_mapping_table[i+1];
+	for (i = 0; i < ID_MAPPING_TABLE_LEN; i += 2) {
+		if (id_mapping_table[i]==orig_id) {
+			new_id = id_mapping_table[i + 1];
    		break;
    	}
    }
-
    return new_id;
 }