The time initialization changed for i386 when some code moved into time_init.
This made it no longer possible to override the PIT / HPET, which broke
paravirt guests.
Subject: Fix PIT override bug for paravirt
Signed-off-by: Zachary Amsden <[email protected]>
diff -r acd12d5196c7 arch/i386/kernel/paravirt.c
--- a/arch/i386/kernel/paravirt.c Thu Feb 01 23:13:18 2007 -0800
+++ b/arch/i386/kernel/paravirt.c Thu Feb 01 23:19:36 2007 -0800
@@ -497,7 +497,7 @@ struct paravirt_ops paravirt_ops = {
.memory_setup = machine_specific_memory_setup,
.get_wallclock = native_get_wallclock,
.set_wallclock = native_set_wallclock,
- .time_init = time_init_hook,
+ .time_init = native_time_init,
.init_IRQ = native_init_IRQ,
.cpuid = native_cpuid,
diff -r acd12d5196c7 arch/i386/kernel/time.c
--- a/arch/i386/kernel/time.c Thu Feb 01 23:13:18 2007 -0800
+++ b/arch/i386/kernel/time.c Thu Feb 01 23:43:21 2007 -0800
@@ -268,10 +268,17 @@ static void __init hpet_time_init(void)
{
if (!hpet_enable())
setup_pit_timer();
- do_time_init();
-}
-
+ time_init_hook();
+}
+
+void __init native_time_init(void)
+{
+ late_time_init = hpet_time_init;
+}
+
+#ifndef CONFIG_PARAVIRT
void __init time_init(void)
{
- late_time_init = hpet_time_init;
-}
+ native_time_init();
+}
+#endif
diff -r acd12d5196c7 include/asm-i386/paravirt.h
--- a/include/asm-i386/paravirt.h Thu Feb 01 23:13:18 2007 -0800
+++ b/include/asm-i386/paravirt.h Thu Feb 01 23:17:27 2007 -0800
@@ -185,7 +185,7 @@ static inline int set_wallclock(unsigned
return paravirt_ops.set_wallclock(nowtime);
}
-static inline void do_time_init(void)
+static inline void time_init(void)
{
return paravirt_ops.time_init();
}
diff -r acd12d5196c7 include/asm-i386/time.h
--- a/include/asm-i386/time.h Thu Feb 01 23:13:18 2007 -0800
+++ b/include/asm-i386/time.h Thu Feb 01 23:43:29 2007 -0800
@@ -28,13 +28,14 @@ static inline int native_set_wallclock(u
return retval;
}
+extern void native_time_init(void);
+
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else /* !CONFIG_PARAVIRT */
#define get_wallclock() native_get_wallclock()
#define set_wallclock(x) native_set_wallclock(x)
-#define do_time_init() time_init_hook()
#endif /* CONFIG_PARAVIRT */
-
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