From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45343) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aTUrf-0001A5-0l for qemu-devel@nongnu.org; Wed, 10 Feb 2016 08:31:31 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aTUrZ-0007ZN-Ot for qemu-devel@nongnu.org; Wed, 10 Feb 2016 08:31:26 -0500 From: Marcel Apfelbaum Date: Wed, 10 Feb 2016 15:31:13 +0200 Message-Id: <1455111073-5600-3-git-send-email-marcel@redhat.com> In-Reply-To: <1455111073-5600-1-git-send-email-marcel@redhat.com> References: <1455111073-5600-1-git-send-email-marcel@redhat.com> Subject: [Qemu-devel] [PATCH V2 2/2] hw/virtio: group virtio flags into an enum List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: marcel@redhat.com, lvivier@redhat.com, jasowang@redhat.com, qemu-stable@nongnu.org, mst@redhat.com Minimizes the possibility to assign the same bit to different features. Signed-off-by: Marcel Apfelbaum --- hw/virtio/virtio-pci.h | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h index 6686b10..e4548c2 100644 --- a/hw/virtio/virtio-pci.h +++ b/hw/virtio/virtio-pci.h @@ -58,30 +58,33 @@ 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) -- 2.4.3