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@xxxxxxxxxx>
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Cc: "Radim Krčmář" <rkrcmar@xxxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: kvm@xxxxxxxxxxxxxxx
---
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;
--
git-series 0.8.10
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