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[Qemu-devel] [PATCH 05/21] virtio: modify save/load handler to handle in
From: |
Yoshiaki Tamura |
Subject: |
[Qemu-devel] [PATCH 05/21] virtio: modify save/load handler to handle inuse varialble. |
Date: |
Thu, 25 Nov 2010 15:06:44 +0900 |
Modify inuse type to uint16_t, let save/load to handle, and revert
last_avail_idx with inuse if there are outstanding emulation.
Signed-off-by: Yoshiaki Tamura <address@hidden>
---
hw/virtio.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/hw/virtio.c b/hw/virtio.c
index 849a60f..5509644 100644
--- a/hw/virtio.c
+++ b/hw/virtio.c
@@ -72,7 +72,7 @@ struct VirtQueue
VRing vring;
target_phys_addr_t pa;
uint16_t last_avail_idx;
- int inuse;
+ uint16_t inuse;
uint16_t vector;
void (*handle_output)(VirtIODevice *vdev, VirtQueue *vq);
VirtIODevice *vdev;
@@ -671,6 +671,7 @@ void virtio_save(VirtIODevice *vdev, QEMUFile *f)
qemu_put_be32(f, vdev->vq[i].vring.num);
qemu_put_be64(f, vdev->vq[i].pa);
qemu_put_be16s(f, &vdev->vq[i].last_avail_idx);
+ qemu_put_be16s(f, &vdev->vq[i].inuse);
if (vdev->binding->save_queue)
vdev->binding->save_queue(vdev->binding_opaque, i, f);
}
@@ -711,6 +712,11 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f)
vdev->vq[i].vring.num = qemu_get_be32(f);
vdev->vq[i].pa = qemu_get_be64(f);
qemu_get_be16s(f, &vdev->vq[i].last_avail_idx);
+ qemu_get_be16s(f, &vdev->vq[i].inuse);
+
+ /* revert last_avail_idx if there are outstanding emulation. */
+ vdev->vq[i].last_avail_idx -= vdev->vq[i].inuse;
+ vdev->vq[i].inuse = 0;
if (vdev->vq[i].pa) {
virtqueue_init(&vdev->vq[i]);
--
1.7.1.2
- [Qemu-devel] Re: [PATCH 13/21] dma-helpers: replace bdrv_aio_writev() with bdrv_aio_writev_proxy()., (continued)
[Qemu-devel] [PATCH 01/21] Make QEMUFile buf expandable, and introduce qemu_realloc_buffer() and qemu_clear_buffer()., Yoshiaki Tamura, 2010/11/25
[Qemu-devel] [PATCH 19/21] migration-tcp: modify tcp_accept_incoming_migration() to handle ft_mode, and add a hack not to close fd when ft_mode is enabled., Yoshiaki Tamura, 2010/11/25
[Qemu-devel] [PATCH 12/21] Insert event_tap_mmio() to cpu_physical_memory_rw() in exec.c., Yoshiaki Tamura, 2010/11/25
[Qemu-devel] [PATCH 08/21] savevm: introduce util functions to control ft_trans_file from savevm layer., Yoshiaki Tamura, 2010/11/25
[Qemu-devel] [PATCH 18/21] migration: introduce migrate_ft_trans_{put, get}_ready(), and modify migrate_fd_put_ready() when ft_mode is on., Yoshiaki Tamura, 2010/11/25
[Qemu-devel] [PATCH 07/21] Introduce fault tolerant VM transaction QEMUFile and ft_mode., Yoshiaki Tamura, 2010/11/25
[Qemu-devel] [PATCH 02/21] Introduce read() to FdMigrationState., Yoshiaki Tamura, 2010/11/25
[Qemu-devel] [PATCH 05/21] virtio: modify save/load handler to handle inuse varialble.,
Yoshiaki Tamura <=
[Qemu-devel] [PATCH 09/21] Introduce event-tap., Yoshiaki Tamura, 2010/11/25
[Qemu-devel] [PATCH 16/21] e1000: replace qemu_send_packet() with qemu_send_packet_proxy()., Yoshiaki Tamura, 2010/11/25
[Qemu-devel] [PATCH 04/21] qemu-char: export socket_set_nodelay()., Yoshiaki Tamura, 2010/11/25
Re: [Qemu-devel] [PATCH 00/21] Kemari for KVM 0.2, Blue Swirl, 2010/11/26