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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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77ad386e59
move the trampoline setup code out of smpboot.c - UP kernels can have suspend support too. Signed-off-by: Ingo Molnar <mingo@elte.hu>
19 lines
500 B
C
19 lines
500 B
C
#include <linux/io.h>
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#include <asm/trampoline.h>
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/* ready for x86_64, no harm for x86, since it will overwrite after alloc */
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unsigned char *trampoline_base = __va(TRAMPOLINE_BASE);
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/*
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* Currently trivial. Write the real->protected mode
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* bootstrap into the page concerned. The caller
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* has made sure it's suitably aligned.
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*/
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unsigned long setup_trampoline(void)
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{
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memcpy(trampoline_base, trampoline_data,
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trampoline_end - trampoline_data);
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return virt_to_phys(trampoline_base);
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}
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