linux/drivers/misc/pvpanic.c, branch v5.8

misc: pvpanic: add crash loaded event

2020-01-14T14:07:37Z

Some users prefer kdump tools to generate guest kernel dumpfile, at the same time, need a out-of-band kernel panic event. Currently if booting guest kernel with 'crash_kexec_post_notifiers', QEMU will receive PVPANIC_PANICKED event and stop VM. If booting guest kernel without 'crash_kexec_post_notifiers', guest will not call notifier chain. Add PVPANIC_CRASH_LOADED bit for pvpanic event, it means that guest kernel actually hit a kernel panic, but the guest kernel wants to handle by itself. Signed-off-by: zhenwei pi Link: https://lore.kernel.org/r/20200102023513.318836-3-pizhenwei@bytedance.com Signed-off-by: Greg Kroah-Hartman

misc: pvpanic: move bit definition to uapi header file

2020-01-14T14:07:37Z

Some processes outside of the kernel(Ex, QEMU) should know what the value really is for, so move the bit definition to a uapi file. Suggested-by: Greg KH Signed-off-by: zhenwei pi Link: https://lore.kernel.org/r/20200102023513.318836-2-pizhenwei@bytedance.com Signed-off-by: Greg Kroah-Hartman

misc: pvpanic: fix warning implicit declaration

2019-01-18T15:42:05Z

When building and have fragment CONFIG_NO_IOPORT_MAP enabled then the following warning: ../drivers/misc/pvpanic.c: In function ‘pvpanic_walk_resources’: ../drivers/misc/pvpanic.c:73:10: error: implicit declaration of function ‘ioport_map’; did you mean ‘ioremap’? [-Werror=implicit-function-declaration] base = ioport_map(r.start, resource_size(&r)); ^~~~~~~~~~ Since commmit 5d32a66541c4 ("PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set"), its now possible to have ACPI enabled without haveing PCI enabled. However, the pvpanic driver depends on HAS_IOPORT_MAP or HAVE_IOREMAP_PROT when ACPI is enabled. It was fine until commit 725eba2928ad ("misc/pvpanic: add MMIO support") got added. Rework so that we do a extra check ifdef CONFIG_HAS_IOPORT_MAP. Fixes: 5d32a66541c4 ("PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set") Suggested-by: Arnd Bergmann Signed-off-by: Anders Roxell Signed-off-by: Greg Kroah-Hartman

misc/pvpanic: fix a NULL vs IS_ERR() check

2018-11-27T07:26:01Z

The devm_ioremap_resource() function doesn't return NULL, it returns error pointers. Fixes: 46f934c9a12f ("misc/pvpanic: add support to get pvpanic device info FDT") Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman

misc/pvpanic: remove a redundant comma

2018-11-07T12:53:04Z

Remove a redundant comma in pvpanic_device_ids. Reviewed-by: Andy Shevchenko Acked-by: Mark Rutland Signed-off-by: Peng Hao Signed-off-by: Greg Kroah-Hartman

misc/pvpanic: convert to SPDX license tags

2018-11-07T12:53:04Z

Updates license to use SPDX-License-Identifier instead of verbose license text. Reviewed-by: Andy Shevchenko Acked-by: Mark Rutland Signed-off-by: Peng Hao Signed-off-by: Greg Kroah-Hartman

misc/pvpanic: change header file sort style

2018-11-07T12:53:04Z

Make header files alphabetical order. Signed-off-by: Peng Hao Reviewed-by: Andy Shevchenko Signed-off-by: Greg Kroah-Hartman

misc/pvpanic: remove unnecessary header file

2018-11-07T12:53:04Z

Remove unnecessary header file init.h. Reviewed-by: Andy Shevchenko Acked-by: Mark Rutland Signed-off-by: Peng Hao Signed-off-by: Greg Kroah-Hartman

misc/pvpanic : break dependency on ACPI

2018-11-07T12:53:04Z

The pvpanic driver is available for architectures that do not support ACPI.So break the dependency. Reviewed-by: Andy Shevchenko Signed-off-by: Peng Hao Signed-off-by: Greg Kroah-Hartman

misc/pvpanic : grouping ACPI related stuff

2018-11-07T12:53:04Z

Grouping ACPI related stuff and make preparation to break the ACPI dependency w/o any functional change. Reviewed-by: Andy Shevchenko Signed-off-by: Peng Hao Signed-off-by: Greg Kroah-Hartman