kernel/linux.git/drivers/xen/cpu_hotplug.c, branch v4.11.5

xen: modify xenstore watch event interface

2017-02-09T16:26:49+00:00

Today a Xenstore watch event is delivered via a callback function declared as: void (*callback)(struct xenbus_watch *, const char **vec, unsigned int len); As all watch events only ever come with two parameters (path and token) changing the prototype to: void (*callback)(struct xenbus_watch *, const char *path, const char *token); is the natural thing to do. Apply this change and adapt all users. Cc: konrad.wilk@oracle.com Cc: roger.pau@citrix.com Cc: wei.liu2@citrix.com Cc: paul.durrant@citrix.com Cc: netdev@vger.kernel.org Signed-off-by: Juergen Gross Reviewed-by: Paul Durrant Reviewed-by: Wei Liu Reviewed-by: Roger Pau Monné Reviewed-by: Boris Ostrovsky Signed-off-by: Boris Ostrovsky

xen/pvh: Enable CPU hotplug

2017-02-07T13:07:01+00:00

PVH guests don't (yet) receive ACPI hotplug interrupts and therefore need to monitor xenstore for CPU hotplug event. Signed-off-by: Boris Ostrovsky Reviewed-by: Juergen Gross

xen, cpu_hotplug: call device_offline instead of cpu_down

2015-10-23T13:20:48+00:00

When offlining a cpu, instead of cpu_down, call device_offline, which also takes care of updating the cpu.dev.offline field. This keeps the sysfs file /sys/devices/system/cpu/cpuN/online, up to date. Also move the call to disable_hotplug_cpu, because it makes more sense to have it there. We don't call device_online at cpu-hotplug time, because that would immediately take the cpu online, while we want to retain the current behaviour: the user needs to explicitly enable the cpu after it has been hotplugged. Signed-off-by: Stefano Stabellini Reviewed-by: Boris Ostrovsky CC: konrad.wilk@oracle.com CC: boris.ostrovsky@oracle.com CC: david.vrabel@citrix.com

xen/arm: Enable cpu_hotplug.c

2015-10-23T13:20:47+00:00

Build cpu_hotplug for ARM and ARM64 guests. Rename arch_(un)register_cpu to xen_(un)register_cpu and provide an empty implementation on ARM and ARM64. On x86 just call arch_(un)register_cpu as we are already doing. Initialize cpu_hotplug on ARM. Signed-off-by: Stefano Stabellini Reviewed-by: Julien Grall Reviewed-by: Boris Ostrovsky

xen: Convert printks to pr_

2013-06-28T15:19:58+00:00

Convert printks to pr_ (excludes printk(KERN_DEBUG...) to be more consistent throughout the xen subsystem. Add pr_fmt with KBUILD_MODNAME or "xen:" KBUILD_MODNAME Coalesce formats and add missing word spaces Add missing newlines Align arguments and reflow to 80 columns Remove DRV_NAME from formats as pr_fmt adds the same content This does change some of the prefixes of these messages but it also does make them more consistent. Signed-off-by: Joe Perches Signed-off-by: Konrad Rzeszutek Wilk

Xen: properly bound buffer access when parsing cpu/*/availability

2013-01-15T20:57:02+00:00

At the same time reduce the local buffers to 16 bytes each. Signed-off-by: Jan Beulich Signed-off-by: Konrad Rzeszutek Wilk

xen/bootup: During bootup suppress XENBUS: Unable to read cpu state

2012-02-03T21:05:30+00:00

When the initial domain starts, it prints (depending on the amount of CPUs) a slew of XENBUS: Unable to read cpu state XENBUS: Unable to read cpu state XENBUS: Unable to read cpu state XENBUS: Unable to read cpu state which provide no useful information - as the error is a valid issue - but not on the initial domain. The reason is that the XenStore is not accessible at that time (it is after all the first guest) so the CPU hotplug watch cannot parse "availability/cpu" attribute. Signed-off-by: Konrad Rzeszutek Wilk

Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

2009-12-11T20:18:16+00:00

* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (109 commits) PCI: fix coding style issue in pci_save_state() PCI: add pci_request_acs PCI: fix BUG_ON triggered by logical PCIe root port removal PCI: remove ifdefed pci_cleanup_aer_correct_error_status PCI: unconditionally clear AER uncorr status register during cleanup x86/PCI: claim SR-IOV BARs in pcibios_allocate_resource PCI: portdrv: remove redundant definitions PCI: portdrv: remove unnecessary struct pcie_port_data PCI: portdrv: minor cleanup for pcie_port_device_register PCI: portdrv: add missing irq cleanup PCI: portdrv: enable device before irq initialization PCI: portdrv: cleanup service irqs initialization PCI: portdrv: check capabilities first PCI: portdrv: move PME capability check PCI: portdrv: remove redundant pcie type calculation PCI: portdrv: cleanup pcie_device registration PCI: portdrv: remove redundant pcie_port_device_probe PCI: Always set prefetchable base/limit upper32 registers PCI: read-modify-write the pcie device control register when initiating pcie flr PCI: show dma_mask bits in /sys ... Fixed up conflicts in: arch/x86/kernel/amd_iommu_init.c drivers/pci/dmar.c drivers/pci/hotplug/acpiphp_glue.c

xen: move Xen-testing predicates to common header

2009-11-04T16:47:24+00:00

Move xen_domain and related tests out of asm-x86 to xen/xen.h so they can be included whenever they are necessary. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Jesse Barnes

cpumask: Use modern cpumask style in Xen

2009-11-04T12:19:50+00:00

Signed-off-by: Rusty Russell Cc: Jeremy Fitzhardinge LKML-Reference: <200911031458.38406.rusty@rustcorp.com.au> Signed-off-by: Ingo Molnar