[PATCH 13/13] KVM: MIPS: Claim KVM_CAP_READONLY_MEM support

[James Hogan <james.hogan@imgtec.com>]

Now that load/store faults due to read only memory regions are treated
as MMIO accesses it is safe to claim support for read only memory
regions (KVM_CAP_READONLY_MEM).

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
---
 arch/mips/include/uapi/asm/kvm.h | 2 ++
 arch/mips/kvm/mips.c             | 1 +
 2 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/mips/include/uapi/asm/kvm.h b/arch/mips/include/uapi/asm/kvm.h
index 6985eb59b085..a8a0199bf760 100644
--- a/arch/mips/include/uapi/asm/kvm.h
+++ b/arch/mips/include/uapi/asm/kvm.h
@@ -19,6 +19,8 @@
  * Some parts derived from the x86 version of this file.
  */
 
+#define __KVM_HAVE_READONLY_MEM
+
 /*
  * for KVM_GET_REGS and KVM_SET_REGS
  *
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index 425e4139742c..cf501a5a0dfe 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -1222,6 +1222,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	switch (ext) {
 	case KVM_CAP_ONE_REG:
 	case KVM_CAP_ENABLE_CAP:
+	case KVM_CAP_READONLY_MEM:
 	case KVM_CAP_SYNC_MMU:
 		r = 1;
 		break;
-- 
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