diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2014-09-17 23:56:18 +0200 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2014-10-10 13:07:37 +0200 |
| commit | c40f2f8ff833eddc02cb599ef6e5a162223449ba (patch) | |
| tree | a2ec51729aae4cc741dca4c264a723362b32db14 /virt/kvm/arm | |
| parent | arm/arm64: KVM: fix potential NULL dereference in user_mem_abort() (diff) | |
| download | linux-c40f2f8ff833eddc02cb599ef6e5a162223449ba.tar.xz linux-c40f2f8ff833eddc02cb599ef6e5a162223449ba.zip | |
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 <marc.zyngier@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'virt/kvm/arm')
| -rw-r--r-- | virt/kvm/arm/vgic.c | 3 |
1 files changed, 2 insertions, 1 deletions
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; |