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KVM: enable PCI multiple-segments for pass-through device

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Enable optional parameter (default 0) - PCI segment (or domain) besides
BDF, when assigning PCI device to guest.

Signed-off-by: Zhai Edwin <edwin.zhai@intel.com>
Acked-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Zhai, Edwin 2010-01-29 14:38:44 +08:00 • committed by Marcelo Tosatti
commit ab9f4ecbb6
5 changed files with 14 additions and 5 deletions
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4
include/linux/kvm.h
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@ -500,6 +500,7 @@ struct kvm_ioeventfd {
#define KVM_CAP_HYPERV 44
#define KVM_CAP_HYPERV_VAPIC 45
#define KVM_CAP_HYPERV_SPIN 46
#define KVM_CAP_PCI_SEGMENT 47
#ifdef KVM_CAP_IRQ_ROUTING
@ -694,8 +695,9 @@ struct kvm_assigned_pci_dev {
__u32 busnr;
__u32 devfn;
__u32 flags;
__u32 segnr;
union {
__u32 reserved[12];
__u32 reserved[11];
};
};

1
include/linux/kvm_host.h
View file

@ -400,6 +400,7 @@ struct kvm_assigned_dev_kernel {
struct work_struct interrupt_work;
struct list_head list;
int assigned_dev_id;
int host_segnr;
int host_busnr;
int host_devfn;
unsigned int entries_nr;