This patchset adds support for PCI in the pvpanic driver. The device already
got in qemu [1].
v2:
- mmio -> MMIO, pci -> PCI suggested by Randy Dunlap.
- group pvpanic-common.c and mmio.c in the same module. The intention was to
have only one module and the common code splitted up to be re-used by the
pvpanic-pci module in the next patch.
- add a new patch where add the licenses for the new files (when I moved the
code to mmio.c I preserved the original licenses there)
- properly clean-up PCI device when driver removed.
How to test:
Run a VM with latest qemu which has the pvpanic-pci device:
qemu-system-aarch64 -device pvpanic-pci
Generate a panic in the guest:
echo 1 > /proc/sys/kernel/sysrq
echo c > /proc/sysrq-trigger
Observe in the QMP console the panic events received by the device:
{"timestamp": {"seconds": 1613122186, "microseconds": 141729}, "event":
"GUEST_PANICKED", "data": {"action": "pause"}}
{"timestamp": {"seconds": 1613122186, "microseconds": 141833}, "event":
"GUEST_PANICKED", "data": {"action": "poweroff"}}
{"timestamp": {"seconds": 1613122186, "microseconds": 141896}, "event":
"SHUTDOWN", "data": {"guest": true, "reason": "guest-panic"}}
[1] https://github.com/qemu/qemu/commit/9df52f58e76e904fb141b10318362d718f470db2
Mihai Carabas (3):
misc/pvpanic: split-up generic and platform dependent code
misc/pvpanic: add PCI driver
misc/pvpanic: add license
drivers/misc/Kconfig | 9 +--
drivers/misc/Makefile | 2 +-
drivers/misc/pvpanic.c | 111 ----------------------------------
drivers/misc/pvpanic/Kconfig | 27 +++++++++
drivers/misc/pvpanic/Makefile | 11 ++++
drivers/misc/pvpanic/mmio.c | 83 +++++++++++++++++++++++++
drivers/misc/pvpanic/pci.c | 56 +++++++++++++++++
drivers/misc/pvpanic/pvpanic-common.c | 60 ++++++++++++++++++
drivers/misc/pvpanic/pvpanic.h | 17 ++++++
9 files changed, 256 insertions(+), 120 deletions(-)
delete mode 100644 drivers/misc/pvpanic.c
create mode 100644 drivers/misc/pvpanic/Kconfig
create mode 100644 drivers/misc/pvpanic/Makefile
create mode 100644 drivers/misc/pvpanic/mmio.c
create mode 100644 drivers/misc/pvpanic/pci.c
create mode 100644 drivers/misc/pvpanic/pvpanic-common.c
create mode 100644 drivers/misc/pvpanic/pvpanic.h
--
1.8.3.1
