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authorStefano Stabellini <stefano.stabellini@eu.citrix.com>2011-01-26 17:07:27 +0000
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2011-01-27 12:00:24 -0500
commit23febeddbe67e5160929f7c48f7bfe83c2eecb99 (patch)
tree0a5ce5f89e7ec1a8c1d30452677a077ad8753243 /arch
parent7cb31b752c71e0bd405c1139e1907c3335877dff (diff)
downloadlinux-23febeddbe67e5160929f7c48f7bfe83c2eecb99.tar.bz2
xen/setup: Route halt operations to safe_halt pvop.
With this patch, the cpuidle driver does not load and does not issue the mwait operations. Instead the hypervisor is doing them (b/c we call the safe_halt pvops call). This fixes quite a lot of bootup issues wherein the user had to force interrupts for the continuation of the bootup. Details are discussed in: http://lists.xensource.com/archives/html/xen-devel/2011-01/msg00535.html [v2: Wrote the commit description] Reported-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Tested-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/xen/setup.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 75bdf2ab3d7c..a8a66a50d446 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -355,6 +355,7 @@ void __init xen_arch_setup(void)
boot_cpu_data.hlt_works_ok = 1;
#endif
pm_idle = default_idle;
+ boot_option_idle_override = IDLE_HALT;
fiddle_vdso();
}