From: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
To: qemu-devel@nongnu.org
Cc: izumi.taku@jp.fujitsu.com, alex.williamson@redhat.com
Subject: [Qemu-devel] [RFC v9 02/18] vfio: squeeze out vfio_pci_do_hot_reset for support bus reset
Date: Tue, 9 Jun 2015 11:37:30 +0800 [thread overview]
Message-ID: <59ced5c0d0a0508ac0d88d90b7177262a9da0da2.1433812962.git.chen.fan.fnst@cn.fujitsu.com> (raw)
In-Reply-To: <cover.1433812962.git.chen.fan.fnst@cn.fujitsu.com>
squeeze out vfio_pci_do_hot_reset to do host bus reset when AER recovery.
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
---
hw/vfio/pci.c | 75 +++++++++++++++++++++++++++++++++++------------------------
1 file changed, 44 insertions(+), 31 deletions(-)
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 4a97ccc..e056c49 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -2686,6 +2686,48 @@ error:
return ret;
}
+static int vfio_pci_do_hot_reset(VFIOPCIDevice *vdev,
+ struct vfio_pci_hot_reset_info *info)
+{
+ VFIOGroup *group;
+ struct vfio_pci_hot_reset *reset;
+ int32_t *fds;
+ int ret, i, count;
+ struct vfio_pci_dependent_device *devices;
+
+ /* Determine how many group fds need to be passed */
+ count = 0;
+ devices = &info->devices[0];
+ QLIST_FOREACH(group, &vfio_group_list, next) {
+ for (i = 0; i < info->count; i++) {
+ if (group->groupid == devices[i].group_id) {
+ count++;
+ break;
+ }
+ }
+ }
+
+ reset = g_malloc0(sizeof(*reset) + (count * sizeof(*fds)));
+ reset->argsz = sizeof(*reset) + (count * sizeof(*fds));
+ fds = &reset->group_fds[0];
+
+ /* Fill in group fds */
+ QLIST_FOREACH(group, &vfio_group_list, next) {
+ for (i = 0; i < info->count; i++) {
+ if (group->groupid == devices[i].group_id) {
+ fds[reset->count++] = group->fd;
+ break;
+ }
+ }
+ }
+
+ /* Bus reset! */
+ ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_PCI_HOT_RESET, reset);
+ g_free(reset);
+
+ return ret;
+}
+
static int vfio_add_std_cap(VFIOPCIDevice *vdev, uint8_t pos)
{
PCIDevice *pdev = &vdev->pdev;
@@ -2827,9 +2869,7 @@ static int vfio_pci_hot_reset(VFIOPCIDevice *vdev, bool single)
VFIOGroup *group;
struct vfio_pci_hot_reset_info *info = NULL;
struct vfio_pci_dependent_device *devices;
- struct vfio_pci_hot_reset *reset;
- int32_t *fds;
- int ret, i, count;
+ int ret, i;
bool multi = false;
trace_vfio_pci_hot_reset(vdev->vbasedev.name, single ? "one" : "multi");
@@ -2908,34 +2948,7 @@ static int vfio_pci_hot_reset(VFIOPCIDevice *vdev, bool single)
goto out_single;
}
- /* Determine how many group fds need to be passed */
- count = 0;
- QLIST_FOREACH(group, &vfio_group_list, next) {
- for (i = 0; i < info->count; i++) {
- if (group->groupid == devices[i].group_id) {
- count++;
- break;
- }
- }
- }
-
- reset = g_malloc0(sizeof(*reset) + (count * sizeof(*fds)));
- reset->argsz = sizeof(*reset) + (count * sizeof(*fds));
- fds = &reset->group_fds[0];
-
- /* Fill in group fds */
- QLIST_FOREACH(group, &vfio_group_list, next) {
- for (i = 0; i < info->count; i++) {
- if (group->groupid == devices[i].group_id) {
- fds[reset->count++] = group->fd;
- break;
- }
- }
- }
-
- /* Bus reset! */
- ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_PCI_HOT_RESET, reset);
- g_free(reset);
+ ret = vfio_pci_do_hot_reset(vdev, info);
trace_vfio_pci_hot_reset_result(vdev->vbasedev.name,
ret ? "%m" : "Success");
--
1.9.3
next prev parent reply other threads:[~2015-06-09 3:41 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-09 3:37 [Qemu-devel] [RFC v9 00/18] vfio-pci: pass the aer error to guest Chen Fan
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 01/18] vfio: extract vfio_get_hot_reset_info as a single function Chen Fan
2015-06-09 3:37 ` Chen Fan [this message]
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 03/18] pcie: modify the capability size assert Chen Fan
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 04/18] vfio: make the 4 bytes aligned for capability size Chen Fan
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 05/18] vfio: add pcie extanded capability support Chen Fan
2015-06-09 21:22 ` Alex Williamson
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 06/18] aer: impove pcie_aer_init to support vfio device Chen Fan
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 07/18] vfio: add aer support for " Chen Fan
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 08/18] vfio: improve vfio_get_group to support adding group without devices Chen Fan
2015-06-09 21:23 ` Alex Williamson
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 09/18] vfio: add ref for group to support own affected groups Chen Fan
2015-06-09 21:23 ` Alex Williamson
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 10/18] get all affected groups for each device support aer Chen Fan
2015-06-09 21:22 ` Alex Williamson
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 11/18] vfio: add check host bus reset is support or not Chen Fan
2015-06-09 21:23 ` Alex Williamson
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 12/18] pci: add bus reset_notifiers callbacks for host bus reset Chen Fan
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 13/18] vfio: add sec_bus_reset notifier to notify physical bus reset is needed Chen Fan
2015-06-09 21:23 ` Alex Williamson
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 14/18] vfio: improve vfio_pci_hot_reset to support more case Chen Fan
2015-06-09 21:24 ` Alex Williamson
2015-06-16 8:10 ` Chen Fan
2015-06-16 14:08 ` Alex Williamson
2015-06-17 6:28 ` Chen Fan
2015-06-17 15:23 ` Alex Williamson
2015-06-18 10:27 ` Chen Fan
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 15/18] vfio: do hot bus reset when do virtual secondary bus reset Chen Fan
2015-06-09 21:23 ` Alex Williamson
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 16/18] pcie_aer: expose pcie_aer_msg() interface Chen Fan
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 17/18] vfio-pci: pass the aer error to guest Chen Fan
2015-06-09 3:37 ` [Qemu-devel] [RFC v9 18/18] vfio: add 'aer' property to expose aercap Chen Fan
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