[Lguest] [PATCH 6/25] [PATCH] add native_apic read and write functions, as well as boot clocks ones

[Glauber de Oliveira Costa]

Time for the apic handling functions to get their native counterparts.
Also, put the native hook for the boot clocks functions in the apic.h header

Signed-off-by: Glauber de Oliveira Costa <gcosta at redhat.com>
Signed-off-by: Steven Rostedt <rostedt at goodmis.org>
---
 arch/x86_64/kernel/apic.c    |    2 +-
 arch/x86_64/kernel/smpboot.c |    8 +++++++-
 include/asm-x86_64/apic.h    |   13 +++++++++++--
 3 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c
index 900ff38..2d233ef 100644
--- a/arch/x86_64/kernel/apic.c
+++ b/arch/x86_64/kernel/apic.c
@@ -1193,7 +1193,7 @@ int __init APIC_init_uniprocessor (void)
 		setup_IO_APIC();
 	else
 		nr_ioapics = 0;
-	setup_boot_APIC_clock();
+	setup_boot_clock();
 	check_nmi_watchdog();
 	return 0;
 }
diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index be9c7eb..5c7eb60 100644
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -338,7 +338,7 @@ void __cpuinit start_secondary(void)
 	check_tsc_sync_target();
 
 	Dprintk("cpu %d: setting up apic clock\n", smp_processor_id()); 	
-	setup_secondary_APIC_clock();
+ 	setup_secondary_clock();
 
 	Dprintk("cpu %d: enabling apic timer\n", smp_processor_id());
 
@@ -468,6 +468,12 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta
 	num_starts = 2;
 
 	/*
+	 * Paravirt wants a startup IPI hook here to set up the
+	 * target processor state.
+	 */
+	startup_ipi_hook(phys_apicid, (unsigned long) start_rip,
+		         (unsigned long) init_rsp);
+	/*
 	 * Run STARTUP IPI loop.
 	 */
 	Dprintk("#startup loops: %d.\n", num_starts);
diff --git a/include/asm-x86_64/apic.h b/include/asm-x86_64/apic.h
index 85125ef..de17908 100644
--- a/include/asm-x86_64/apic.h
+++ b/include/asm-x86_64/apic.h
@@ -38,16 +38,25 @@ struct pt_regs;
  * Basic functions accessing APICs.
  */
 
-static __inline void apic_write(unsigned long reg, unsigned int v)
+static __inline void native_apic_write(unsigned long reg, unsigned int v)
 {
 	*((volatile unsigned int *)(APIC_BASE+reg)) = v;
 }
 
-static __inline unsigned int apic_read(unsigned long reg)
+static __inline unsigned int native_apic_read(unsigned long reg)
 {
 	return *((volatile unsigned int *)(APIC_BASE+reg));
 }
 
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
+#define apic_write(reg, v) native_apic_write(reg, v)
+#define apic_read(reg)  native_apic_read(reg)
+#define setup_boot_clock(void)	setup_boot_APIC_clock(void)
+#define setup_secondary_clock(void) setup_secondary_APIC_clock(void)
+#endif
+
 extern void apic_wait_icr_idle(void);
 extern unsigned int safe_apic_wait_icr_idle(void);
 
-- 
1.4.4.2