diff options
| author | Marcel Apfelbaum <marcel@redhat.com> | 2016-02-10 15:31:13 +0200 |
|---|---|---|
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | 2016-03-17 17:25:13 -0500 |
| commit | c5c9841ce8acd2ce836a729783cc37984baeab69 (patch) | |
| tree | f3cdb4fbe402f52dc4d42d6253a06fac40160c20 /hw/virtio | |
| parent | 6b62303eb8d5975197d57437d45620ee37091610 (diff) | |
hw/virtio: group virtio flags into an enum
Minimizes the possibility to assign
the same bit to different features.
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit fc1769b758a5b6167bb9cdb4e10369a49b4fa930)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/virtio-pci.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h index 8e6936581b..c8f9cfdfcd 100644 --- a/hw/virtio/virtio-pci.h +++ b/hw/virtio/virtio-pci.h @@ -59,30 +59,33 @@ typedef struct VirtioBusClass VirtioPCIBusClass; #define VIRTIO_PCI_BUS_CLASS(klass) \ OBJECT_CLASS_CHECK(VirtioPCIBusClass, klass, TYPE_VIRTIO_PCI_BUS) +enum { + VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT, + VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, + VIRTIO_PCI_FLAG_DISABLE_LEGACY_BIT, + VIRTIO_PCI_FLAG_DISABLE_MODERN_BIT, + VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT, + VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT, + VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT, +}; + /* Need to activate work-arounds for buggy guests at vmstate load. */ -#define VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT 0 #define VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION \ (1 << VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT) /* Performance improves when virtqueue kick processing is decoupled from the * vcpu thread using ioeventfd for some devices. */ -#define VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT 1 #define VIRTIO_PCI_FLAG_USE_IOEVENTFD (1 << VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT) /* virtio version flags */ -#define VIRTIO_PCI_FLAG_DISABLE_LEGACY_BIT 2 -#define VIRTIO_PCI_FLAG_DISABLE_MODERN_BIT 3 -#define VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT 6 #define VIRTIO_PCI_FLAG_DISABLE_LEGACY (1 << VIRTIO_PCI_FLAG_DISABLE_LEGACY_BIT) #define VIRTIO_PCI_FLAG_DISABLE_MODERN (1 << VIRTIO_PCI_FLAG_DISABLE_MODERN_BIT) #define VIRTIO_PCI_FLAG_DISABLE_PCIE (1 << VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT) /* migrate extra state */ -#define VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT 4 #define VIRTIO_PCI_FLAG_MIGRATE_EXTRA (1 << VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT) /* have pio notification for modern device ? */ -#define VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT 5 #define VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY \ (1 << VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT) |