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| author | Sheng Yang <sheng@linux.intel.com> | 2009-02-25 17:22:26 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-06-10 11:48:23 +0300 |
| commit | c1e01514296e8a4a43ff0c88dcff635cb90feb5f (patch) | |
| tree | 299a54da71c4900fc3b71840e2c6eec98b35f8b4 /include/linux/kvm_host.h | |
| parent | bfd349d073b2838a6a031f057d25e266619b7093 (diff) | |
| download | blackbird-op-linux-c1e01514296e8a4a43ff0c88dcff635cb90feb5f.tar.gz blackbird-op-linux-c1e01514296e8a4a43ff0c88dcff635cb90feb5f.zip | |
KVM: Ioctls for init MSI-X entry
Introduce KVM_SET_MSIX_NR and KVM_SET_MSIX_ENTRY two ioctls.
This two ioctls are used by userspace to specific guest device MSI-X entry
number and correlate MSI-X entry with GSI during the initialization stage.
MSI-X should be well initialzed before enabling.
Don't support change MSI-X entry number for now.
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'include/linux/kvm_host.h')
| -rw-r--r-- | include/linux/kvm_host.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 1a2f98fbecea..432edc27e82b 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -319,6 +319,12 @@ struct kvm_irq_ack_notifier { void (*irq_acked)(struct kvm_irq_ack_notifier *kian); }; +struct kvm_guest_msix_entry { + u32 vector; + u16 entry; + u16 flags; +}; + struct kvm_assigned_dev_kernel { struct kvm_irq_ack_notifier ack_notifier; struct work_struct interrupt_work; @@ -326,13 +332,17 @@ struct kvm_assigned_dev_kernel { int assigned_dev_id; int host_busnr; int host_devfn; + unsigned int entries_nr; int host_irq; bool host_irq_disabled; + struct msix_entry *host_msix_entries; int guest_irq; + struct kvm_guest_msix_entry *guest_msix_entries; #define KVM_ASSIGNED_DEV_GUEST_INTX (1 << 0) #define KVM_ASSIGNED_DEV_GUEST_MSI (1 << 1) #define KVM_ASSIGNED_DEV_HOST_INTX (1 << 8) #define KVM_ASSIGNED_DEV_HOST_MSI (1 << 9) +#define KVM_ASSIGNED_DEV_MSIX ((1 << 2) | (1 << 10)) unsigned long irq_requested_type; int irq_source_id; int flags; |
