To enable arm64-specific vm ioctls to be added cleanly, this patch
adds a kvm_arm_arch_vm_ioctl() hook so that these don't pollute the
common code.
No functional change.
Signed-off-by: Dave Martin <Dave.Martin@xxxxxxx>
---
arch/arm/include/asm/kvm_host.h | 6 ++++++
arch/arm64/include/asm/kvm_host.h | 2 ++
arch/arm64/kvm/guest.c | 6 ++++++
virt/kvm/arm/arm.c | 2 +-
4 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index df2659d..0850fcd 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -285,6 +285,12 @@ static inline int kvm_arm_arch_vcpu_ioctl(struct vcpu *vcpu,
return -EINVAL;
}
+static inline int kvm_arm_arch_vm_ioctl(struct kvm *kvm,
+ unsigned int ioctl, unsigned long arg)
+{
+ return -EINVAL;
+}
+
int kvm_perf_init(void);
int kvm_perf_teardown(void);
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 5225485..ae25f14 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -63,6 +63,8 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
int kvm_arch_dev_ioctl_check_extension(struct kvm *kvm, long ext);
int kvm_arm_arch_vcpu_ioctl(struct kvm_vcpu *vcpu,
unsigned int ioctl, unsigned long arg);
+int kvm_arm_arch_vm_ioctl(struct kvm *kvm,
+ unsigned int ioctl, unsigned long arg);
void __extended_idmap_trampoline(phys_addr_t boot_pgd, phys_addr_t idmap_start);
struct kvm_arch {
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
index d96145a..f066b17 100644
--- a/arch/arm64/kvm/guest.c
+++ b/arch/arm64/kvm/guest.c
@@ -714,6 +714,12 @@ int kvm_arm_arch_vcpu_ioctl(struct kvm_vcpu *vcpu,
}
}
+int kvm_arm_arch_vm_ioctl(struct kvm *kvm,
+ unsigned int ioctl, unsigned long arg)
+{
+ return -EINVAL;
+}
+
int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
{
return -EINVAL;
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 6e894a8..6582a38 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -1279,7 +1279,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
return 0;
}
default:
- return -EINVAL;
+ return kvm_arm_arch_vm_ioctl(kvm, ioctl, arg);
}
}
--
2.1.4
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