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virpci:fix Secondary Bus Reset bug

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The parent bridge configuration of the current device
should be read and reset, instead of reading the current
device configuration.

Signed-off-by: He Xin <hexin15@baidu.com>
Signed-off-by: Liu Qi <liuqi16@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
hexin 2019-08-15 17:44:06 +08:00 committed by Michal Privoznik
parent 52dad8c9b0
commit e9c6158838
1 changed files with 1 additions and 1 deletions
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2
src/util/virpci.c
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@ -839,7 +839,7 @@ virPCIDeviceTrySecondaryBusReset(virPCIDevicePtr dev,
/* Read the control register, set the reset flag, wait 200ms,
* unset the reset flag and wait 200ms.
*/
ctl = virPCIDeviceRead16(dev, cfgfd, PCI_BRIDGE_CONTROL);
ctl = virPCIDeviceRead16(dev, parentfd, PCI_BRIDGE_CONTROL);
virPCIDeviceWrite16(parent, parentfd, PCI_BRIDGE_CONTROL,
ctl | PCI_BRIDGE_CTL_RESET);