diff options
| author | Ricardo Koller <ricarkol@google.com> | 2021-10-04 18:19:11 -0700 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-10-11 09:31:41 +0100 |
| commit | f25c5e4dafd859b941a4654cbab9eb83ff994bcd (patch) | |
| tree | 6cf231dd1fc8cb78728440de353129d1d3c78f3d /arch/arm64/kvm/vgic/vgic.h | |
| parent | 9e1ff307c779ce1f0f810c7ecce3d95bbae40896 (diff) | |
| download | linux-f25c5e4dafd859b941a4654cbab9eb83ff994bcd.tar.gz linux-f25c5e4dafd859b941a4654cbab9eb83ff994bcd.tar.bz2 linux-f25c5e4dafd859b941a4654cbab9eb83ff994bcd.zip | |
kvm: arm64: vgic: Introduce vgic_check_iorange
Add the new vgic_check_iorange helper that checks that an iorange is
sane: the start address and size have valid alignments, the range is
within the addressable PA range, start+size doesn't overflow, and the
start wasn't already defined.
No functional change.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005011921.437353-2-ricarkol@google.com
Diffstat (limited to 'arch/arm64/kvm/vgic/vgic.h')
| -rw-r--r-- | arch/arm64/kvm/vgic/vgic.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/kvm/vgic/vgic.h b/arch/arm64/kvm/vgic/vgic.h index 14a9218641f5..4be01c38e8f1 100644 --- a/arch/arm64/kvm/vgic/vgic.h +++ b/arch/arm64/kvm/vgic/vgic.h @@ -175,6 +175,10 @@ void vgic_irq_handle_resampling(struct vgic_irq *irq, int vgic_check_ioaddr(struct kvm *kvm, phys_addr_t *ioaddr, phys_addr_t addr, phys_addr_t alignment); +int vgic_check_iorange(struct kvm *kvm, phys_addr_t ioaddr, + phys_addr_t addr, phys_addr_t alignment, + phys_addr_t size); + void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu); void vgic_v2_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr); void vgic_v2_clear_lr(struct kvm_vcpu *vcpu, int lr); |