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With HW PTW supported, invalid TLB is not added when page fault happens. But for EXCCODE_TLBM exception, stale TLB may exist because of the last read access. Thus TLB flush operation is necessary for the EXCCODE_TLBM exception, but not necessary for other tyeps of page fault exceptions. With SW PTW supported, invalid TLB is added in the TLB refill exception. TLB flush operation is necessary for all types of page fault exceptions. Here remove unnecessary TLB flush opereation with HW PTW supported. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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| .. | ||
| intc | ||
| exit.c | ||
| interrupt.c | ||
| irqfd.c | ||
| Kconfig | ||
| main.c | ||
| Makefile | ||
| mmu.c | ||
| switch.S | ||
| timer.c | ||
| tlb.c | ||
| trace.h | ||
| vcpu.c | ||
| vm.c | ||