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Diffstat (limited to 'virt/kvm/kvm_main.c')
-rw-r--r--virt/kvm/kvm_main.c70
1 files changed, 5 insertions, 65 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index c65484b..266bdaf 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -47,10 +47,6 @@
#include <asm/uaccess.h>
#include <asm/pgtable.h>
-#ifdef CONFIG_X86
-#include <asm/msidef.h>
-#endif
-
#ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
#include "coalesced_mmio.h"
#endif
@@ -85,57 +81,6 @@ static long kvm_vcpu_ioctl(struct file *file, unsigned int ioctl,
static bool kvm_rebooting;
#ifdef KVM_CAP_DEVICE_ASSIGNMENT
-
-#ifdef CONFIG_X86
-static void assigned_device_msi_dispatch(struct kvm_assigned_dev_kernel *dev)
-{
- int vcpu_id;
- struct kvm_vcpu *vcpu;
- struct kvm_ioapic *ioapic = ioapic_irqchip(dev->kvm);
- int dest_id = (dev->guest_msi.address_lo & MSI_ADDR_DEST_ID_MASK)
- >> MSI_ADDR_DEST_ID_SHIFT;
- int vector = (dev->guest_msi.data & MSI_DATA_VECTOR_MASK)
- >> MSI_DATA_VECTOR_SHIFT;
- int dest_mode = test_bit(MSI_ADDR_DEST_MODE_SHIFT,
- (unsigned long *)&dev->guest_msi.address_lo);
- int trig_mode = test_bit(MSI_DATA_TRIGGER_SHIFT,
- (unsigned long *)&dev->guest_msi.data);
- int delivery_mode = test_bit(MSI_DATA_DELIVERY_MODE_SHIFT,
- (unsigned long *)&dev->guest_msi.data);
- u32 deliver_bitmask;
-
- BUG_ON(!ioapic);
-
- deliver_bitmask = kvm_ioapic_get_delivery_bitmask(ioapic,
- dest_id, dest_mode);
- /* IOAPIC delivery mode value is the same as MSI here */
- switch (delivery_mode) {
- case IOAPIC_LOWEST_PRIORITY:
- vcpu = kvm_get_lowest_prio_vcpu(ioapic->kvm, vector,
- deliver_bitmask);
- if (vcpu != NULL)
- kvm_apic_set_irq(vcpu, vector, trig_mode);
- else
- printk(KERN_INFO "kvm: null lowest priority vcpu!\n");
- break;
- case IOAPIC_FIXED:
- for (vcpu_id = 0; deliver_bitmask != 0; vcpu_id++) {
- if (!(deliver_bitmask & (1 << vcpu_id)))
- continue;
- deliver_bitmask &= ~(1 << vcpu_id);
- vcpu = ioapic->kvm->vcpus[vcpu_id];
- if (vcpu)
- kvm_apic_set_irq(vcpu, vector, trig_mode);
- }
- break;
- default:
- printk(KERN_INFO "kvm: unsupported MSI delivery mode\n");
- }
-}
-#else
-static void assigned_device_msi_dispatch(struct kvm_assigned_dev_kernel *dev) {}
-#endif
-
static struct kvm_assigned_dev_kernel *kvm_find_assigned_dev(struct list_head *head,
int assigned_dev_id)
{
@@ -162,13 +107,10 @@ static void kvm_assigned_dev_interrupt_work_handler(struct work_struct *work)
* finer-grained lock, update this
*/
mutex_lock(&assigned_dev->kvm->lock);
- if (assigned_dev->irq_requested_type & KVM_ASSIGNED_DEV_GUEST_INTX)
- kvm_set_irq(assigned_dev->kvm,
- assigned_dev->irq_source_id,
- assigned_dev->guest_irq, 1);
- else if (assigned_dev->irq_requested_type &
- KVM_ASSIGNED_DEV_GUEST_MSI) {
- assigned_device_msi_dispatch(assigned_dev);
+ kvm_set_irq(assigned_dev->kvm, assigned_dev->irq_source_id,
+ assigned_dev->guest_irq, 1);
+
+ if (assigned_dev->irq_requested_type & KVM_ASSIGNED_DEV_GUEST_MSI) {
enable_irq(assigned_dev->host_irq);
assigned_dev->host_irq_disabled = false;
}
@@ -331,17 +273,15 @@ static int assigned_device_update_msi(struct kvm *kvm,
{
int r;
+ adev->guest_irq = airq->guest_irq;
if (airq->flags & KVM_DEV_IRQ_ASSIGN_ENABLE_MSI) {
/* x86 don't care upper address of guest msi message addr */
adev->irq_requested_type |= KVM_ASSIGNED_DEV_GUEST_MSI;
adev->irq_requested_type &= ~KVM_ASSIGNED_DEV_GUEST_INTX;
- adev->guest_msi.address_lo = airq->guest_msi.addr_lo;
- adev->guest_msi.data = airq->guest_msi.data;
adev->ack_notifier.gsi = -1;
} else if (msi2intx) {
adev->irq_requested_type |= KVM_ASSIGNED_DEV_GUEST_INTX;
adev->irq_requested_type &= ~KVM_ASSIGNED_DEV_GUEST_MSI;
- adev->guest_irq = airq->guest_irq;
adev->ack_notifier.gsi = airq->guest_irq;
} else {
/*
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