kvm: make KVM_CAP_COALESCED_MMIO architecture agnostic
Remove code from architecture files that can be moved to virt/kvm, since there
is already common code for coalesced MMIO.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
[Removed a pointless 'break' after 'return'.]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 96dba7c..e3c8105 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -209,9 +209,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_IMMEDIATE_EXIT:
r = 1;
break;
- case KVM_CAP_COALESCED_MMIO:
- r = KVM_COALESCED_MMIO_PAGE_OFFSET;
- break;
case KVM_CAP_ARM_SET_DEVICE_ADDR:
r = 1;
break;
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index 1fc6fef..d4b2ad1 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -1070,9 +1070,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_IMMEDIATE_EXIT:
r = 1;
break;
- case KVM_CAP_COALESCED_MMIO:
- r = KVM_COALESCED_MMIO_PAGE_OFFSET;
- break;
case KVM_CAP_NR_VCPUS:
r = num_online_cpus();
break;
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 95c91a9..0e42aa8 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -524,11 +524,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
/* We support this only for PR */
r = !hv_enabled;
break;
-#ifdef CONFIG_KVM_MMIO
- case KVM_CAP_COALESCED_MMIO:
- r = KVM_COALESCED_MMIO_PAGE_OFFSET;
- break;
-#endif
#ifdef CONFIG_KVM_MPIC
case KVM_CAP_IRQ_MPIC:
r = 1;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 1853cda..bb3a153 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2690,9 +2690,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
*/
r = kvm_x86_ops->cpu_has_high_real_mode_segbase();
break;
- case KVM_CAP_COALESCED_MMIO:
- r = KVM_COALESCED_MMIO_PAGE_OFFSET;
- break;
case KVM_CAP_VAPIC:
r = !kvm_x86_ops->cpu_has_accelerated_tpr();
break;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index ff3bf5d..b5dcde1 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2918,6 +2918,10 @@ static long kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg)
case KVM_CAP_IOEVENTFD_ANY_LENGTH:
case KVM_CAP_CHECK_EXTENSION_VM:
return 1;
+#ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
+ case KVM_CAP_COALESCED_MMIO:
+ return KVM_COALESCED_MMIO_PAGE_OFFSET;
+#endif
#ifdef CONFIG_HAVE_KVM_IRQ_ROUTING
case KVM_CAP_IRQ_ROUTING:
return KVM_MAX_IRQ_ROUTES;
