From c40f2f8ff833eddc02cb599ef6e5a162223449ba Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Wed, 17 Sep 2014 14:56:18 -0700 Subject: arm/arm64: KVM: add 'writable' parameter to kvm_phys_addr_ioremap Add support for read-only MMIO passthrough mappings by adding a 'writable' parameter to kvm_phys_addr_ioremap. For the moment, mappings will be read-write even if 'writable' is false, but once the definition of PAGE_S2_DEVICE gets changed, those mappings will be created read-only. Acked-by: Marc Zyngier Signed-off-by: Ard Biesheuvel Signed-off-by: Christoffer Dall --- virt/kvm/arm/vgic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'virt') diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 862967852d5a..382fb5a88b9c 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -1899,7 +1899,8 @@ int kvm_vgic_init(struct kvm *kvm) } ret = kvm_phys_addr_ioremap(kvm, kvm->arch.vgic.vgic_cpu_base, - vgic->vcpu_base, KVM_VGIC_V2_CPU_SIZE); + vgic->vcpu_base, KVM_VGIC_V2_CPU_SIZE, + true); if (ret) { kvm_err("Unable to remap VGIC CPU to VCPU\n"); goto out; -- cgit