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kvm: i386: Add services required for PCI device assignment

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These helpers abstract the interaction of upcoming pci-assign with the
KVM kernel services. Put them under i386 only as other archs will
implement device pass-through via VFIO and not this classic interface.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Jan Kiszka 2012-08-27 08:28:40 +02:00 • committed by Avi Kivity
parent 3ab7384244
commit b139bd300f
2 changed files with 163 additions and 0 deletions
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22
target-i386/kvm_i386.h
View file

@ -11,6 +11,28 @@
#ifndef QEMU_KVM_I386_H
#define QEMU_KVM_I386_H
#include "kvm.h"
bool kvm_allows_irq0_override(void);
int kvm_device_pci_assign(KVMState *s, PCIHostDeviceAddress *dev_addr,
uint32_t flags, uint32_t *dev_id);
int kvm_device_pci_deassign(KVMState *s, uint32_t dev_id);
int kvm_device_intx_assign(KVMState *s, uint32_t dev_id,
bool use_host_msi, uint32_t guest_irq);
int kvm_device_intx_set_mask(KVMState *s, uint32_t dev_id, bool masked);
int kvm_device_intx_deassign(KVMState *s, uint32_t dev_id, bool use_host_msi);
int kvm_device_msi_assign(KVMState *s, uint32_t dev_id, int virq);
int kvm_device_msi_deassign(KVMState *s, uint32_t dev_id);
bool kvm_device_msix_supported(KVMState *s);
int kvm_device_msix_init_vectors(KVMState *s, uint32_t dev_id,
uint32_t nr_vectors);
int kvm_device_msix_set_vector(KVMState *s, uint32_t dev_id, uint32_t vector,
int virq);
int kvm_device_msix_assign(KVMState *s, uint32_t dev_id);
int kvm_device_msix_deassign(KVMState *s, uint32_t dev_id);
#endif