// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2020-2023 Loongson Technology Corporation Limited */ #include <linux/kvm_host.h> #include <asm/tlb.h> #include <asm/kvm_csr.h> /* * kvm_flush_tlb_all() - Flush all root TLB entries for guests. * * Invalidate all entries including GVA-->GPA and GPA-->HPA mappings. */ void kvm_flush_tlb_all(void) { unsigned long flags; local_irq_save(flags); invtlb_all(INVTLB_ALLGID, 0, 0); local_irq_restore(flags); } void kvm_flush_tlb_gpa(struct kvm_vcpu *vcpu, unsigned long gpa) { lockdep_assert_irqs_disabled(); gpa &= (PAGE_MASK << 1); invtlb(INVTLB_GID_ADDR, read_csr_gstat() & CSR_GSTAT_GID, gpa); }