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authorTimothy Pearson <tpearson@raptorengineeringinc.com>2015-01-30 23:47:45 -0600
committerAlexandru Gagniuc <mr.nuke.me@gmail.com>2015-01-31 21:33:10 +0100
commit9c8106696ec7cddfda1c4881145ee385eeef92d8 (patch)
treec318675e6e22805a5f6022ab4c55bb08ad8487b8
parent0d7f8d0b790446cd7f2f806c37ecdc2b9c8ed741 (diff)
cpu/amd (non-AGESA): Fix AP crash during microcode version lookup
Move mapping tables to struct and prevent OOB array access that was crashing the APs during CAR initialization. Change-Id: I9e2554b50ad60a8d02ef4bd3fbee6fddb238d83f Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> Reviewed-on: http://review.coreboot.org/8310 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@gmail.com> Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
-rw-r--r--src/cpu/amd/model_10xxx/update_microcode.c47
-rw-r--r--src/cpu/amd/model_fxx/model_fxx_update_microcode.c61
2 files changed, 63 insertions, 45 deletions
diff --git a/src/cpu/amd/model_10xxx/update_microcode.c b/src/cpu/amd/model_10xxx/update_microcode.c
index 95624e94c6..3cdf97898a 100644
--- a/src/cpu/amd/model_10xxx/update_microcode.c
+++ b/src/cpu/amd/model_10xxx/update_microcode.c
@@ -1,6 +1,7 @@
/*
* This file is part of the coreboot project.
*
+ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
* Copyright (C) 2007 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
@@ -56,22 +57,30 @@ 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,
+struct id_mapping {
+ uint32_t orig_id;
+ uint16_t new_id;
+};
+
+static u16 get_equivalent_processor_rev_id(u32 orig_id) {
+ static const struct id_mapping 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 },
+
+ /* Array terminator */
+ { 0xffffff, 0x0000 },
};
u32 new_id;
@@ -79,9 +88,9 @@ static u32 get_equivalent_processor_rev_id(u32 orig_id) {
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; id_mapping_table[i].orig_id != 0xffffff; i++ ) {
+ if (id_mapping_table[i].orig_id == orig_id) {
+ new_id = id_mapping_table[i].new_id;
break;
}
}
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 4a53feaa29..af10ce0670 100644
--- a/src/cpu/amd/model_fxx/model_fxx_update_microcode.c
+++ b/src/cpu/amd/model_fxx/model_fxx_update_microcode.c
@@ -3,6 +3,7 @@
*
* Copyright (C) 2005 Advanced Micro Devices, Inc.
* Copyright (C) 2010 Advanced Micro Devices, Inc.
+ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -40,35 +41,43 @@ 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[] = {
+struct id_mapping {
+ uint32_t orig_id;
+ uint16_t new_id;
+};
+
+static u16 get_equivalent_processor_rev_id(u32 orig_id) {
+ static const struct id_mapping 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,
+ { 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
-
+ /* FIXME */
#endif
+ /* Array terminator */
+ { 0xffffff, 0x0000 },
+
};
unsigned new_id;
@@ -76,9 +85,9 @@ static unsigned get_equivalent_processor_rev_id(unsigned orig_id) {
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; id_mapping_table[i].orig_id != 0xffffff; i++ ) {
+ if (id_mapping_table[i].orig_id == orig_id) {
+ new_id = id_mapping_table[i].new_id;
break;
}
}