summaryrefslogtreecommitdiff
path: root/Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic
diff options
context:
space:
mode:
authorMihai Carabas <mihai.carabas@oracle.com>2021-03-24 17:49:16 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-03-28 15:57:11 +0300
commitdb3a4f0abefd7be96089fcd74029c259df3bed76 (patch)
tree757c7c77f089f01df358a9001b6a44ae5ff85827 /Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic
parentb3c0f8774668fd30a3efb2d0afc1a6527dacb858 (diff)
downloadlinux-db3a4f0abefd7be96089fcd74029c259df3bed76.tar.xz
misc/pvpanic: add PCI driver
Add support for pvpanic PCI device added in qemu [1]. At probe time, obtain the address where to read/write pvpanic events and pass it to the generic handling code. Will follow the same logic as pvpanic MMIO device driver. At remove time, unmap base address and disable PCI device. [1] https://github.com/qemu/qemu/commit/9df52f58e76e904fb141b10318362d718f470db2 Signed-off-by: Mihai Carabas <mihai.carabas@oracle.com> Link: https://lore.kernel.org/r/1616597356-20696-4-git-send-email-mihai.carabas@oracle.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic b/Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic
index 1936f7324155..4ec03cd36357 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic
+++ b/Documentation/ABI/testing/sysfs-bus-pci-devices-pvpanic
@@ -1,4 +1,5 @@
-What: /sys/devices/pci0000:00/*/QEMU0001:00/capability
+What: /sys/devices/pci0000:00/*/QEMU0001:00/capability for MMIO
+ /sys/bus/pci/drivers/pvpanic-pci/0000:00:0*.0/capability for PCI
Date: Jan 2021
Contact: zhenwei pi <pizhenwei@bytedance.com>
Description:
@@ -12,6 +13,7 @@ Description:
https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/specs/pvpanic.txt
What: /sys/devices/pci0000:00/*/QEMU0001:00/events
+ /sys/bus/pci/drivers/pvpanic-pci/0000:00:0*.0/events for PCI
Date: Jan 2021
Contact: zhenwei pi <pizhenwei@bytedance.com>
Description: