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 <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: "Radim Krčmář" <[email protected]>
Cc: [email protected]
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/14155/
Signed-off-by: Ralf Baechle <[email protected]>

Author: James Hogan

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);