Displaying 5 results from an estimated 5 matches for "idle_halt".
2011 Mar 22
10
Re: [RFC PATCH V4 4/5] cpuidle: driver for xen
...oid __init xen_arch_setup(void)
> {
> xen_panic_handler_init();
> @@ -354,7 +394,7 @@ void __init xen_arch_setup(void)
> #ifdef CONFIG_X86_32
> boot_cpu_data.hlt_works_ok = 1;
> #endif
> - pm_idle = default_idle;
> + xen_idle_init();
> boot_option_idle_override = IDLE_HALT;
>
> fiddle_vdso();
>
> --
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2012 Feb 23
7
[PATCH 2/2] RFC: Xen pad logic
From ba9abf6ee7e5fe0515e2d51b14743c8d5416285c Mon Sep 17 00:00:00 2001
From: Liu, Jinsong <jinsong.liu@intel.com>
Date: Fri, 24 Feb 2012 02:18:02 +0800
Subject: [PATCH 2/2] Xen pad logic
This patch implement Xen pad logic, and when getting pad device
notification, it hypercalls to Xen hypervisor for core parking.
Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com>
---
2011 Jan 10
6
2.6.37 dom0 under Xen 4.1 clocksource not working
When booting 2.6.37 (from kernel.org) under Xen 4.1, there are
apparently issues with timer interrupts being delivered to the dom0.
Repeatedly causing an interrupt (for example, the ACPI power button) will
allow the system to boot, as does adding "clocksource=jiffies" to the
kernel command line. This is only present under Xen, not when booting the
same kernel on real hardware.
When boot
2011 Nov 30
36
[RFC PATCH] Exporting ACPI Pxx/Cxx states to other kernel subsystems (v1).
Hello,
The following patches are a solution to a problem we have encountered
when using the Xen hypervisor:
- Need Pxx/Cxx states to save on power consumption when using Xen (we
do want those datacenters to consume less power!),
- Also need to figure out the Turbo mode so that the scheduler can properly
boost a core for CPU bound guests.
In essence the Xen hypervisor requires that
2011 Aug 15
36
expose MWAIT to dom0
There''re basically two methods to enter a given C-state: legacy (hlt + I/O read),
and native(using mwait). MWAIT is always preferred when both underlying CPU
and OS support, which is a more efficient way to conduct C-state transition.
Xen PM relies on Dom0 to parse ACPI Cx/Px information, which involves one
step to notify BIOS about a set of capabilities supported by OSPM. One capability