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author | Francis Rowe <info@gluglug.org.uk> | 2015-11-06 02:45:49 (EST) |
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committer | Francis Rowe <info@gluglug.org.uk> | 2015-11-06 03:01:51 (EST) |
commit | 60453ff2cbd1befe24959fba1d24f734406444e3 (patch) | |
tree | 74a6080455b2b00184fbc4a00503188032773986 /resources/libreboot/patch/kgpe-d16/0037-cpu-amd-car-Add-romstage-BSP-stack-overrun-detection.patch | |
parent | 51f5487e7d2c8809bdc7690fe26948064257b34d (diff) | |
download | libreboot-60453ff2cbd1befe24959fba1d24f734406444e3.zip libreboot-60453ff2cbd1befe24959fba1d24f734406444e3.tar.gz libreboot-60453ff2cbd1befe24959fba1d24f734406444e3.tar.bz2 |
Update coreboot to new version (use latest stable kgpe-d16 tree)
Diffstat (limited to 'resources/libreboot/patch/kgpe-d16/0037-cpu-amd-car-Add-romstage-BSP-stack-overrun-detection.patch')
-rw-r--r-- | resources/libreboot/patch/kgpe-d16/0037-cpu-amd-car-Add-romstage-BSP-stack-overrun-detection.patch | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/resources/libreboot/patch/kgpe-d16/0037-cpu-amd-car-Add-romstage-BSP-stack-overrun-detection.patch b/resources/libreboot/patch/kgpe-d16/0037-cpu-amd-car-Add-romstage-BSP-stack-overrun-detection.patch deleted file mode 100644 index d8c5a24..0000000 --- a/resources/libreboot/patch/kgpe-d16/0037-cpu-amd-car-Add-romstage-BSP-stack-overrun-detection.patch +++ /dev/null @@ -1,58 +0,0 @@ -From 5ae2feaab88902ab9d5bb95eab1ec396f9c01b9f Mon Sep 17 00:00:00 2001 -From: Timothy Pearson <tpearson@raptorengineeringinc.com> -Date: Mon, 1 Jun 2015 23:58:59 -0500 -Subject: [PATCH 037/139] cpu/amd/car: Add romstage BSP stack overrun detection - -Change-Id: Ia2e8f99be9df388e492a633c49df21ca1c57ba13 -Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> ---- - src/cpu/amd/car/cache_as_ram.inc | 6 +++++- - src/cpu/amd/car/post_cache_as_ram.c | 8 ++++++++ - 2 files changed, 13 insertions(+), 1 deletion(-) - -diff --git a/src/cpu/amd/car/cache_as_ram.inc b/src/cpu/amd/car/cache_as_ram.inc -index 6542906..4ccde3f 100644 ---- a/src/cpu/amd/car/cache_as_ram.inc -+++ b/src/cpu/amd/car/cache_as_ram.inc -@@ -24,7 +24,7 @@ - #include <cpu/amd/mtrr.h> - - #define CacheSize CONFIG_DCACHE_RAM_SIZE --#define CacheBase (0xd0000 - CacheSize) -+#define CacheBase CONFIG_DCACHE_RAM_BASE - #define CacheSizeBSPStack CONFIG_DCACHE_BSP_STACK_SIZE - #define CacheSizeBSPSlush CONFIG_DCACHE_BSP_STACK_SLUSH - -@@ -473,6 +473,10 @@ fam10_end_part1: - movl $(CacheBase + CacheSize), %eax - movl %eax, %esp - -+ /* Poison the lower stack boundary */ -+ movl $((CacheBase + CacheSize) - CacheSizeBSPStack), %eax -+ movl $0xdeadbeef, (%eax) -+ - post_code(0xa3) - - jmp CAR_FAM10_ap_out -diff --git a/src/cpu/amd/car/post_cache_as_ram.c b/src/cpu/amd/car/post_cache_as_ram.c -index 257b41a..787bedd 100644 ---- a/src/cpu/amd/car/post_cache_as_ram.c -+++ b/src/cpu/amd/car/post_cache_as_ram.c -@@ -110,6 +110,14 @@ void post_cache_as_ram(void) - void *resume_backup_memory = NULL; - uint32_t family = amd_fam1x_cpu_family(); - -+ /* Verify that the BSP didn't overrun the lower stack -+ * boundary during romstage execution -+ */ -+ volatile uint32_t *lower_stack_boundary; -+ lower_stack_boundary = (void *)((CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE) - CONFIG_STACK_SIZE); -+ if ((*lower_stack_boundary) != 0xdeadbeef) -+ printk(BIOS_WARNING, "BSP overran lower stack boundary. Undefined behaviour may result!\n"); -+ - struct romstage_handoff *handoff; - handoff = romstage_handoff_find_or_add(); - if (handoff != NULL) --- -1.9.1 - |