MIPS: KVM: Use __local_flush_icache_user_range()

Convert KVM dynamic translation of guest instructions to flush icache
for guest mapped addresses using the new
__local_flush_icache_user_range() API to allow the more generic
flush_icache_range() to be changed to work on kernel addresses only.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14155/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/kvm/dyntrans.c b/arch/mips/kvm/dyntrans.c
index d280894..5317ed2 100644 (file)
--- a/arch/mips/kvm/dyntrans.c
+++ b/arch/mips/kvm/dyntrans.c
@@ -45,8 +45,8 @@ static int kvm_mips_trans_replace(struct kvm_vcpu *vcpu, u32 *opc,
        } else if (KVM_GUEST_KSEGX((unsigned long) opc) == KVM_GUEST_KSEG23) {
                local_irq_save(flags);
                memcpy((void *)opc, (void *)&replace, sizeof(u32));
-               local_flush_icache_range((unsigned long)opc,
-                                        (unsigned long)opc + 32);
+               __local_flush_icache_user_range((unsigned long)opc,
+                                               (unsigned long)opc + 32);
                local_irq_restore(flags);
        } else {
                kvm_err("%s: Invalid address: %p\n", __func__, opc);