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arch/x86: honor CONFIG_INIT_STACKS in 64-bit mode

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Initialize the IRQ stacks with 0xAA bytes when the option is enabled.

Signed-off-by: Charles E. Youse <charles.youse@intel.com>
This commit is contained in:
Charles E. Youse 2019-07-30 16:30:53 -07:00 committed by Andrew Boie
parent a926fa0a82
commit dc0314af7f
1 changed files with 7 additions and 0 deletions
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7
arch/x86/core/intel64/locore.S
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@ -92,6 +92,13 @@ __start:
movq $__bss_num_qwords, %rcx
rep stosq
#ifdef CONFIG_INIT_STACKS
movq $0xAAAAAAAAAAAAAAAA, %rax
movq $ist, %rdi
movq $((CONFIG_ISR_DEPTH*CONFIG_ISR_STACK_SIZE)>>3), %rcx
rep stosq
#endif
#ifdef CONFIG_X86_MULTIBOOT_INFO
/* If EBX isn't 0, then we have a valid multiboot info struct. */