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authorPavel Dovgalyuk <pavel.dovgalyuk@ispras.ru>2021-03-29 10:43:12 +0300
committerMichael S. Tsirkin <mst@redhat.com>2021-05-14 10:26:18 -0400
commitb8893a3c862111fa1c530c4be6f7426e7f07bf1e (patch)
tree86f22b896a2b653562034eadf63caa348542099c /include
parent05dfb447a4e11b32d4ed94f73629c497235fc3dc (diff)
hw/virtio: enable ioeventfd configuring for mmio
This patch adds ioeventfd flag for virtio-mmio configuration. It allows switching ioeventfd on and off. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Message-Id: <161700379211.1135943.8859209566937991305.stgit@pasha-ThinkPad-X280> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/hw/virtio/virtio-mmio.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/hw/virtio/virtio-mmio.h b/include/hw/virtio/virtio-mmio.h
index d4c4c386ab..090f7730e7 100644
--- a/include/hw/virtio/virtio-mmio.h
+++ b/include/hw/virtio/virtio-mmio.h
@@ -49,12 +49,17 @@ typedef struct VirtIOMMIOQueue {
uint32_t used[2];
} VirtIOMMIOQueue;
+#define VIRTIO_IOMMIO_FLAG_USE_IOEVENTFD_BIT 1
+#define VIRTIO_IOMMIO_FLAG_USE_IOEVENTFD \
+ (1 << VIRTIO_IOMMIO_FLAG_USE_IOEVENTFD_BIT)
+
struct VirtIOMMIOProxy {
/* Generic */
SysBusDevice parent_obj;
MemoryRegion iomem;
qemu_irq irq;
bool legacy;
+ uint32_t flags;
/* Guest accessible state needing migration and reset */
uint32_t host_features_sel;
uint32_t guest_features_sel;