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authorRusty Russell <rusty@rustcorp.com.au>2006-12-07 02:14:08 +0100
committerAndi Kleen <andi@basil.nowhere.org>2006-12-07 02:14:08 +0100
commit4f205fd45a5c192907188d6f8f6d7e66db859248 (patch)
treea356044df1960b93737681db9fa88974fe0425d0 /include/asm-i386
parentc9ccf30d77f04064fe5436027ab9d2230c7cdd94 (diff)
downloadlinux-4f205fd45a5c192907188d6f8f6d7e66db859248.tar.bz2
[PATCH] paravirt: Allow selected bug checks to be
Allow selected bug checks to be skipped by paravirt kernels. The two most important are the F00F workaround (which is either done by the hypervisor, or not required), and the 'hlt' instruction check, which can break under some hypervisors. Signed-off-by: Zachary Amsden <zach@vmware.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Andrew Morton <akpm@osdl.org>
Diffstat (limited to 'include/asm-i386')
-rw-r--r--include/asm-i386/bugs.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-i386/bugs.h b/include/asm-i386/bugs.h
index 592ffeeda45e..38f1aebbbdb5 100644
--- a/include/asm-i386/bugs.h
+++ b/include/asm-i386/bugs.h
@@ -21,6 +21,7 @@
#include <asm/processor.h>
#include <asm/i387.h>
#include <asm/msr.h>
+#include <asm/paravirt.h>
static int __init no_halt(char *s)
{
@@ -91,6 +92,9 @@ static void __init check_fpu(void)
static void __init check_hlt(void)
{
+ if (paravirt_enabled())
+ return;
+
printk(KERN_INFO "Checking 'hlt' instruction... ");
if (!boot_cpu_data.hlt_works_ok) {
printk("disabled\n");