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mmu: add pause instruction while waiting for other cpus to invalidate page

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Matheus
2022-09-13 20:28:28 -03:00
parent e7517468c7
commit 5e92b8cabd
1 changed files with 1 additions and 1 deletions
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src/arch/x86_64/mmu.c
+1 -1
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@@ -46,7 +46,7 @@ static void invalidate(void* addr){
sem.count += 2; sem.count += 2;
inv = addr; inv = addr;
arch_smp_sendipi(0, VECTOR_MMUINVAL, IPI_CPU_ALLBUTSELF); arch_smp_sendipi(0, VECTOR_MMUINVAL, IPI_CPU_ALLBUTSELF);
while(!sem_tryacquire(&sem)); while(!sem_tryacquire(&sem)) asm("pause");
} }