search for: processor_cor

...t_extcntl(co { unsigned int pmbits = (xen_start_info->flags & SIF_PM_MASK) >> 8; + if (!pmbits) + return; if (pmbits & XEN_PROCESSOR_PM_CX) xen_extcntl_ops.pm_ops[PM_TYPE_IDLE] = xen_cx_notifier; if (pmbits & XEN_PROCESSOR_PM_PX) Index: head-2008-09-15/drivers/acpi/processor_core.c =================================================================== --- head-2008-09-15.orig/drivers/acpi/processor_core.c 2008-09-19 12:55:04.000000000 +0200 +++ head-2008-09-15/drivers/acpi/processor_core.c 2008-09-19 12:13:42.000000000 +0200 @@ -661,7 +661,7 @@ static int acpi_processor_remov...

...sub-system, and then passed to hypervisor by hypercall. To make this happen, the key point is to add hook in the kernel ACPI sub-system. Fortunately, kernel already has good abstraction, and only several places need to add hook. To be more detail, there is an acpi_processor_driver (in drivers/acpi/processor_core.c) , which all the Cx/Px parsing event will go to. This driver will call its acpi processor event handler, e.g. add/remove, start/stop, notify to handle these events. These event handlers in turn will call some library functions (in drivers/acpi/processor_perflib.c), e.g. acpi_processor_ppc_has_ch...

Hi All, I have several Xen virtual machines within logical volumes using LVM2. I did not use disk images for performance reasons. Conventionally, if I want to clone my virtual machines, I have to dd the LV to an image file. But this consumes a lot of time and harddisk space. So, instead of doing that, I want to use losetup and kpartx with my logical volumes, which contain operating systems of