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authorLen Brown <len.brown@intel.com>2011-04-01 18:28:35 -0400
committerLen Brown <len.brown@intel.com>2011-08-03 19:06:36 -0400
commitd91ee5863b71e8c90eaf6035bff3078a85e2e7b5 (patch)
tree7c4972d8d6f614f656720ec686a6288de68f4af3 /arch
parent62027aea23fcd14478abdddd3b74a4e0f5fb2984 (diff)
downloadop-kernel-dev-d91ee5863b71e8c90eaf6035bff3078a85e2e7b5.zip
op-kernel-dev-d91ee5863b71e8c90eaf6035bff3078a85e2e7b5.tar.gz
cpuidle: replace xen access to x86 pm_idle and default_idle
When a Xen Dom0 kernel boots on a hypervisor, it gets access to the raw-hardware ACPI tables. While it parses the idle tables for the hypervisor's beneift, it uses HLT for its own idle. Rather than have xen scribble on pm_idle and access default_idle, have it simply disable_cpuidle() so acpi_idle will not load and architecture default HLT will be used. cc: xen-devel@lists.xensource.com Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/xen/setup.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 60aeeb5..a9627e2 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -9,6 +9,7 @@
#include <linux/mm.h>
#include <linux/pm.h>
#include <linux/memblock.h>
+#include <linux/cpuidle.h>
#include <asm/elf.h>
#include <asm/vdso.h>
@@ -426,7 +427,7 @@ void __init xen_arch_setup(void)
#ifdef CONFIG_X86_32
boot_cpu_data.hlt_works_ok = 1;
#endif
- pm_idle = default_idle;
+ disable_cpuidle();
boot_option_idle_override = IDLE_HALT;
fiddle_vdso();
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