@@ -506,6 +506,7 @@ void pcie_cap_slot_unplug_request_cb(HotplugHandler *hotplug_dev,
PCIDevice *hotplug_pdev = PCI_DEVICE(hotplug_dev);
uint8_t *exp_cap = hotplug_pdev->config + hotplug_pdev->exp.exp_cap;
uint32_t sltcap = pci_get_word(exp_cap + PCI_EXP_SLTCAP);
+ uint16_t sltctl = pci_get_word(exp_cap + PCI_EXP_SLTCTL);
/* Check if hot-unplug is disabled on the slot */
if ((sltcap & PCI_EXP_SLTCAP_HPC) == 0) {
@@ -521,6 +522,12 @@ void pcie_cap_slot_unplug_request_cb(HotplugHandler *hotplug_dev,
return;
}
+ if ((sltctl & PCI_EXP_SLTCTL_PIC) == PCI_EXP_SLTCTL_PWR_IND_BLINK) {
+ error_setg(errp, "Hot-unplug failed: "
+ "guest is busy (power indicator blinking)");
+ return;
+ }
+
dev->pending_deleted_event = true;
/* In case user cancel the operation of multi-function hot-add,
Refuse to push the attention button in case the guest is busy with some hotplug operation (as indicated by the power indicator blinking). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> --- hw/pci/pcie.c | 7 +++++++ 1 file changed, 7 insertions(+)