GNUBoot/coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

arch/x86/lapic: Remove second stack poisoning

Browse source 
It was already done once in c_start.S.

Change-Id: I1cb0ea25251644dbd1127d177247a02ba52bb550
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30796
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Kyösti Mälkki 2018-05-23 01:13:27 +03:00 committed by Stefan Reinauer
parent 2dbe51a17c
commit a706ad5444
1 changed files with 2 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
src/cpu/x86/lapic/lapic_cpu_init.c
View file

@ -265,11 +265,9 @@ int start_cpu(struct device *cpu)
struct cpu_info *info; struct cpu_info *info;
unsigned long stack_end; unsigned long stack_end;
unsigned long stack_base; unsigned long stack_base;
unsigned long *stack;
unsigned long apicid; unsigned long apicid;
unsigned int index; unsigned int index;
unsigned long count; unsigned long count;
int i;
int result; int result;
spin_lock(&start_cpu_lock); spin_lock(&start_cpu_lock);
@ -287,10 +285,8 @@ int start_cpu(struct device *cpu)
stack_base = ((unsigned long)_estack) - (CONFIG_STACK_SIZE*(index+1)); stack_base = ((unsigned long)_estack) - (CONFIG_STACK_SIZE*(index+1));
printk(BIOS_SPEW, "CPU%d: stack_base %p, stack_end %p\n", index, printk(BIOS_SPEW, "CPU%d: stack_base %p, stack_end %p\n", index,
(void *)stack_base, (void *)stack_end); (void *)stack_base, (void *)stack_end);
/* poison the stack */ stacks[index] = (void *)stack_base;
for (stack = (void *)stack_base, i = 0; i < CONFIG_STACK_SIZE; i++)
stack[i/sizeof(*stack)] = 0xDEADBEEF;
stacks[index] = stack;
/* Record the index and which CPU structure we are using */ /* Record the index and which CPU structure we are using */
info = (struct cpu_info *)stack_end; info = (struct cpu_info *)stack_end;
info->index = index; info->index = index;