diff options
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/arm/mmio.c | 7 | ||||
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-init.c | 30 |
2 files changed, 27 insertions, 10 deletions
diff --git a/virt/kvm/arm/mmio.c b/virt/kvm/arm/mmio.c index a8a6a0c883f1..6af5c91337f2 100644 --- a/virt/kvm/arm/mmio.c +++ b/virt/kvm/arm/mmio.c @@ -86,6 +86,12 @@ int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run) unsigned int len; int mask; + /* Detect an already handled MMIO return */ + if (unlikely(!vcpu->mmio_needed)) + return 0; + + vcpu->mmio_needed = 0; + if (!run->mmio.is_write) { len = run->mmio.len; if (len > sizeof(unsigned long)) @@ -188,6 +194,7 @@ int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run, run->mmio.is_write = is_write; run->mmio.phys_addr = fault_ipa; run->mmio.len = len; + vcpu->mmio_needed = 1; if (!ret) { /* We handled the access successfully in the kernel. */ diff --git a/virt/kvm/arm/vgic/vgic-init.c b/virt/kvm/arm/vgic/vgic-init.c index bdbc297d06fb..e621b5d45b27 100644 --- a/virt/kvm/arm/vgic/vgic-init.c +++ b/virt/kvm/arm/vgic/vgic-init.c @@ -8,6 +8,7 @@ #include <linux/cpu.h> #include <linux/kvm_host.h> #include <kvm/arm_vgic.h> +#include <asm/kvm_emulate.h> #include <asm/kvm_mmu.h> #include "vgic.h" @@ -164,12 +165,18 @@ static int kvm_vgic_dist_init(struct kvm *kvm, unsigned int nr_spis) irq->vcpu = NULL; irq->target_vcpu = vcpu0; kref_init(&irq->refcount); - if (dist->vgic_model == KVM_DEV_TYPE_ARM_VGIC_V2) { + switch (dist->vgic_model) { + case KVM_DEV_TYPE_ARM_VGIC_V2: irq->targets = 0; irq->group = 0; - } else { + break; + case KVM_DEV_TYPE_ARM_VGIC_V3: irq->mpidr = 0; irq->group = 1; + break; + default: + kfree(dist->spis); + return -EINVAL; } } return 0; @@ -209,7 +216,6 @@ int kvm_vgic_vcpu_init(struct kvm_vcpu *vcpu) irq->intid = i; irq->vcpu = NULL; irq->target_vcpu = vcpu; - irq->targets = 1U << vcpu->vcpu_id; kref_init(&irq->refcount); if (vgic_irq_is_sgi(i)) { /* SGIs */ @@ -219,11 +225,6 @@ int kvm_vgic_vcpu_init(struct kvm_vcpu *vcpu) /* PPIs */ irq->config = VGIC_CONFIG_LEVEL; } - - if (dist->vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3) - irq->group = 1; - else - irq->group = 0; } if (!irqchip_in_kernel(vcpu->kvm)) @@ -286,10 +287,19 @@ int vgic_init(struct kvm *kvm) for (i = 0; i < VGIC_NR_PRIVATE_IRQS; i++) { struct vgic_irq *irq = &vgic_cpu->private_irqs[i]; - if (dist->vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3) + switch (dist->vgic_model) { + case KVM_DEV_TYPE_ARM_VGIC_V3: irq->group = 1; - else + irq->mpidr = kvm_vcpu_get_mpidr_aff(vcpu); + break; + case KVM_DEV_TYPE_ARM_VGIC_V2: irq->group = 0; + irq->targets = 1U << idx; + break; + default: + ret = -EINVAL; + goto out; + } } } |