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authorGerd Hoffmann <kraxel@redhat.com>2021-11-11 14:08:59 +0100
committerMichael S. Tsirkin <mst@redhat.com>2021-11-15 11:10:11 -0500
commit18416c62e36a79823a9e28f6b2260aa13c25e1d9 (patch)
tree80244a43268a1b07ade7a4fe0700baed9e244a98
parent0d33415a4eafe532f3beef8272811d927236a353 (diff)
pcie: expire pending delete
Add an expire time for pending delete, once the time is over allow pressing the attention button again. This makes pcie hotplug behave more like acpi hotplug, where one can try sending an 'device_del' monitor command again in case the guest didn't respond to the first attempt. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-Id: <20211111130859.1171890-7-kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-rw-r--r--hw/pci/pcie.c2
-rw-r--r--include/hw/qdev-core.h1
-rw-r--r--softmmu/qdev-monitor.c4
3 files changed, 6 insertions, 1 deletions
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c
index a930ac738a..c5ed266337 100644
--- a/hw/pci/pcie.c
+++ b/hw/pci/pcie.c
@@ -548,6 +548,8 @@ void pcie_cap_slot_unplug_request_cb(HotplugHandler *hotplug_dev,
}
dev->pending_deleted_event = true;
+ dev->pending_deleted_expires_ms =
+ qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 5000; /* 5 secs */
/* In case user cancel the operation of multi-function hot-add,
* remove the function that is unexposed to guest individually,
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 72622bd337..20d3066595 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -181,6 +181,7 @@ struct DeviceState {
char *canonical_path;
bool realized;
bool pending_deleted_event;
+ int64_t pending_deleted_expires_ms;
QDict *opts;
int hotplugged;
bool allow_unplug_during_migration;
diff --git a/softmmu/qdev-monitor.c b/softmmu/qdev-monitor.c
index 588a62b88d..5925f1ae5f 100644
--- a/softmmu/qdev-monitor.c
+++ b/softmmu/qdev-monitor.c
@@ -943,7 +943,9 @@ void qmp_device_del(const char *id, Error **errp)
{
DeviceState *dev = find_device_state(id, errp);
if (dev != NULL) {
- if (dev->pending_deleted_event) {
+ if (dev->pending_deleted_event &&
+ (dev->pending_deleted_expires_ms == 0 ||
+ dev->pending_deleted_expires_ms > qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL))) {
error_setg(errp, "Device %s is already in the "
"process of unplug", id);
return;