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[Qemu-devel] [patch v5 11/12] vfio: device may stuck in D3 when doing ae
From: |
Cao jin |
Subject: |
[Qemu-devel] [patch v5 11/12] vfio: device may stuck in D3 when doing aer recovery |
Date: |
Wed, 23 Mar 2016 18:12:06 +0800 |
From: Chen Fan <address@hidden>
when a physical device aer occurred, the device state probably
is not in D0 in a short time, if we recover the device quickly.
we may stuck in D3 state when force to change device state to D0.
we may need to wait for a short time to inject the error to guest.
Signed-off-by: Chen Fan <address@hidden>
---
hw/vfio/pci.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 25fc095..5216e7f 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -2658,6 +2658,9 @@ static void vfio_err_notifier_handler(void *opaque)
msg.severity = isfatal ? PCI_ERR_ROOT_CMD_FATAL_EN :
PCI_ERR_ROOT_CMD_NONFATAL_EN;
+ /* wait a bit to ensure aer device is ready */
+ usleep(2 * 1000);
+
pcie_aer_msg(dev, &msg);
return;
}
--
1.9.3
[Qemu-devel] [patch v5 03/12] vfio: add pcie extended capability support, Cao jin, 2016/03/23
[Qemu-devel] [patch v5 06/12] vfio: add check host bus reset is support or not, Cao jin, 2016/03/23
[Qemu-devel] [patch v5 05/12] vfio: refine function vfio_pci_host_match, Cao jin, 2016/03/23
[Qemu-devel] [patch v5 08/12] vfio: add check aer functionality for hotplug device, Cao jin, 2016/03/23
[Qemu-devel] [patch v5 10/12] vfio-pci: pass the aer error to guest, Cao jin, 2016/03/23
[Qemu-devel] [patch v5 09/12] vfio: vote the function 0 to do host bus reset when aer occurred, Cao jin, 2016/03/23
[Qemu-devel] [patch v5 11/12] vfio: device may stuck in D3 when doing aer recovery,
Cao jin <=
- Re: [Qemu-devel] [patch v5 11/12] vfio: device may stuck in D3 when doing aer recovery, Alex Williamson, 2016/03/24
- Re: [Qemu-devel] [patch v5 11/12] vfio: device may stuck in D3 when doing aer recovery, Chen Fan, 2016/03/24
- Re: [Qemu-devel] [patch v5 11/12] vfio: device may stuck in D3 when doing aer recovery, Alex Williamson, 2016/03/24
- Re: [Qemu-devel] [patch v5 11/12] vfio: device may stuck in D3 when doing aer recovery, Chen Fan, 2016/03/31
- Re: [Qemu-devel] [patch v5 11/12] vfio: device may stuck in D3 when doing aer recovery, Alex Williamson, 2016/03/31
- Re: [Qemu-devel] [patch v5 11/12] vfio: device may stuck in D3 when doing aer recovery, Chen Fan, 2016/03/31
- Re: [Qemu-devel] [patch v5 11/12] vfio: device may stuck in D3 when doing aer recovery, Chen Fan, 2016/03/31
[Qemu-devel] [patch v5 12/12] vfio: add 'aer' property to expose aercap, Cao jin, 2016/03/23