kernel/linux.git/drivers/misc/pvpanic, branch v6.18.21

Merge 6.9-rc7 into char-misc-testing

2024-05-08T18:21:51+00:00

We need the char-misc changes in here as well. Signed-off-by: Greg Kroah-Hartman

misc/pvpanic-pci: register attributes via pci_driver

2024-04-29T09:18:28+00:00

In __pci_register_driver(), the pci core overwrites the dev_groups field of the embedded struct device_driver with the dev_groups from the outer struct pci_driver unconditionally. Set dev_groups in the pci_driver to make sure it is used. This was broken since the introduction of pvpanic-pci. Fixes: db3a4f0abefd ("misc/pvpanic: add PCI driver") Cc: stable@vger.kernel.org Signed-off-by: Thomas Weißschuh Fixes: ded13b9cfd59 ("PCI: Add support for dev_groups to struct pci_driver") Link: https://lore.kernel.org/r/20240411-pvpanic-pci-dev-groups-v1-1-db8cb69f1b09@weissschuh.net Signed-off-by: Greg Kroah-Hartman

misc/pvpanic: add support for normal shutdowns

2024-04-29T09:15:53+00:00

Shutdown requests are normally hardware dependent. By extending pvpanic to also handle shutdown requests, guests can submit such requests with an easily implementable and cross-platform mechanism. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20240412-pvpanic-shutdown-v3-1-c214e9873b3f@weissschuh.net Signed-off-by: Greg Kroah-Hartman

pvpanic: Kill duplicate PCI_VENDOR_ID_REDHAT definition

2024-01-04T16:01:14+00:00

PCI_VENDOR_ID_REDHAT is already defined in pci_ids.h. Kill the dup. Signed-off-by: Andy Shevchenko Reviewed-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20231221140921.2760432-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

pvpanic: Don't use "proxy" headers

2023-12-23T13:15:08+00:00

Update header inclusions to follow IWYU (Include What You Use) principle. Signed-off-by: Andy Shevchenko Reviewed-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20231221144447.2762077-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

misc/pvpanic: deduplicate common code

2023-10-18T08:02:35+00:00

pvpanic-mmio.c and pvpanic-pci.c share a lot of code. Refactor it into pvpanic.c where it doesn't have to be kept in sync manually and where the core logic can be understood more easily. No functional change. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20231011-pvpanic-cleanup-v2-1-4b21d56f779f@weissschuh.net Signed-off-by: Greg Kroah-Hartman

misc/pvpanic: Convert regular spinlock into trylock on panic path

2022-04-29T14:54:59+00:00

The pvpanic driver relies on panic notifiers to execute a callback on panic event. Such function is executed in atomic context - the panic function disables local IRQs, preemption and all other CPUs that aren't running the panic code. With that said, it's dangerous to use regular spinlocks in such path, as introduced by commit b3c0f8774668 ("misc/pvpanic: probe multiple instances"). This patch fixes that by replacing regular spinlocks with the trylock safer approach. It also fixes an old comment (about a long gone framebuffer code) and the notifier priority - we should execute hypervisor notifiers early, deferring this way the panic action to the hypervisor, as expected by the users that are setting up pvpanic. Fixes: b3c0f8774668 ("misc/pvpanic: probe multiple instances") Cc: Christophe JAILLET Cc: Mihai Carabas Cc: Shile Zhang Cc: Wang ShaoBo Cc: zhenwei pi Signed-off-by: Guilherme G. Piccoli Link: https://lore.kernel.org/r/20220427224924.592546-6-gpiccoli@igalia.com Signed-off-by: Greg Kroah-Hartman

pvpanic: Indentation fixes here and there

2021-09-14T09:07:13+00:00

1) replace double spaces with single; 2) relax line width limitation a bit. Reviewed-by: Mihai Carabas Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20210829124354.81653-3-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

pvpanic: Fix typos in the comments

2021-09-14T09:07:13+00:00

Fix a few spelling typos in the comments. Reviewed-by: Mihai Carabas Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20210829124354.81653-2-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

pvpanic: Keep single style across modules

2021-09-14T09:07:13+00:00

We have different style on where we place module_*() and MODULE_*() macros. Inherit the style from the original module (now pvpanic-mmio.c). Reviewed-by: Mihai Carabas Link: https://lore.kernel.org/r/20210829124354.81653-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman