void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong guest_ea, ulong ea_mask)
{
u64 i;
dprintk_mmu("KVM: Flushing %d Shadow PTEs: 0x%lx & 0x%lx\n",
vcpu->arch.hpte_cache_count, guest_ea, ea_mask);
guest_ea &= ea_mask;
switch (ea_mask) {
case ~0xfffUL:
kvmppc_mmu_pte_flush_page(vcpu, guest_ea);
break;
case 0x0ffff000:
/* 32-bit flush w/o segment, go through all possible segments */
for (i = 0; i < 0x100000000ULL; i += 0x10000000ULL)
kvmppc_mmu_pte_flush(vcpu, guest_ea | i, ~0xfffUL);
break;
case 0:
/* Doing a complete flush -> start from scratch */
kvmppc_mmu_pte_flush_all(vcpu);
break;
default:
WARN_ON(1);
break;
}
}
static int kvmppc_core_check_requests_pr(struct kvm_vcpu *vcpu)
{
int r = 1; /* Indicate we want to get back into the guest */
/* We misuse TLB_FLUSH to indicate that we want to clear
all shadow cache entries */
if (kvm_check_request(KVM_REQ_TLB_FLUSH, vcpu))
kvmppc_mmu_pte_flush(vcpu, 0, 0);
return r;
}
void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu)
{
kvmppc_mmu_pte_flush(vcpu, 0, 0);
}