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Merge branch 'v6.5/standard/base' into v6.5/standard/mti-malta32

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This commit is contained in:
Bruce Ashfield 2023-12-14 11:41:20 -05:00
commit e0b08aab2c
1 changed files with 12 additions and 2 deletions
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14
arch/x86/kernel/alternative.c
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@ -255,6 +255,16 @@ static void __init_or_module noinline optimize_nops(u8 *instr, size_t len)
}
}
static void __init_or_module noinline optimize_nops_inplace(u8 *instr, size_t len)
{
unsigned long flags;
local_irq_save(flags);
optimize_nops(instr, len);
sync_core();
local_irq_restore(flags);
}
/*
* In this context, "source" is where the instructions are placed in the
* section .altinstr_replacement, for example during kernel build by the
@ -438,7 +448,7 @@ void __init_or_module noinline apply_alternatives(struct alt_instr *start,
* patch if feature is *NOT* present.
*/
if (!boot_cpu_has(a->cpuid) == !(a->flags & ALT_FLAG_NOT)) {
optimize_nops(instr, a->instrlen);
optimize_nops_inplace(instr, a->instrlen);
continue;
}
@ -1684,8 +1694,8 @@ void __init_or_module text_poke_early(void *addr, const void *opcode,
} else {
local_irq_save(flags);
memcpy(addr, opcode, len);
local_irq_restore(flags);
sync_core();
local_irq_restore(flags);
/*
* Could also do a CLFLUSH here to speed up CPU recovery; but