---

yaml --- r: 43076 b: refs/heads/master c: 13623d7 h: refs/heads/master v: v3
git-mirror · Dec 7, 2006 · 74d2ff2 · 74d2ff2
1 parent 0a4f40d
commit 74d2ff2
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Showing 4 changed files with 48 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6020c8f315709a508b027ef6749e85b125190947
+refs/heads/master: 13623d79309dd82e1964458fa017979d16f33fa8
diff --git a/trunk/arch/i386/kernel/paravirt.c b/trunk/arch/i386/kernel/paravirt.c
@@ -29,6 +29,8 @@
 #include <asm/time.h>
 #include <asm/irq.h>
 #include <asm/delay.h>
+#include <asm/fixmap.h>
+#include <asm/apic.h>
 
 /* nop stub */
 static void native_nop(void)
@@ -446,6 +448,12 @@ struct paravirt_ops paravirt_ops = {
 	.io_delay = native_io_delay,
 	.const_udelay = __const_udelay,
 
+#ifdef CONFIG_X86_LOCAL_APIC
+	.apic_write = native_apic_write,
+	.apic_write_atomic = native_apic_write_atomic,
+	.apic_read = native_apic_read,
+#endif
+
 	.irq_enable_sysexit = native_irq_enable_sysexit,
 	.iret = native_iret,
 };

diff --git a/trunk/include/asm-i386/apic.h b/trunk/include/asm-i386/apic.h
@@ -37,18 +37,27 @@ extern void generic_apic_probe(void);
 /*
  * Basic functions accessing APICs.
  */
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
+#define apic_write native_apic_write
+#define apic_write_atomic native_apic_write_atomic
+#define apic_read native_apic_read
+#endif
 
-static __inline void apic_write(unsigned long reg, unsigned long v)
+static __inline fastcall void native_apic_write(unsigned long reg,
+						unsigned long v)
 {
 	*((volatile unsigned long *)(APIC_BASE+reg)) = v;
 }
 
-static __inline void apic_write_atomic(unsigned long reg, unsigned long v)
+static __inline fastcall void native_apic_write_atomic(unsigned long reg,
+						       unsigned long v)
 {
 	xchg((volatile unsigned long *)(APIC_BASE+reg), v);
 }
 
-static __inline unsigned long apic_read(unsigned long reg)
+static __inline fastcall unsigned long native_apic_read(unsigned long reg)
 {
 	return *((volatile unsigned long *)(APIC_BASE+reg));
 }

diff --git a/trunk/include/asm-i386/paravirt.h b/trunk/include/asm-i386/paravirt.h
@@ -115,6 +115,12 @@ struct paravirt_ops
 	void (fastcall *io_delay)(void);
 	void (*const_udelay)(unsigned long loops);
 
+#ifdef CONFIG_X86_LOCAL_APIC
+	void (fastcall *apic_write)(unsigned long reg, unsigned long v);
+	void (fastcall *apic_write_atomic)(unsigned long reg, unsigned long v);
+	unsigned long (fastcall *apic_read)(unsigned long reg);
+#endif
+
 	/* These two are jmp to, not actually called. */
 	void (fastcall *irq_enable_sysexit)(void);
 	void (fastcall *iret)(void);
@@ -270,6 +276,27 @@ static inline void slow_down_io(void) {
 #endif
 }
 
+#ifdef CONFIG_X86_LOCAL_APIC
+/*
+ * Basic functions accessing APICs.
+ */
+static inline void apic_write(unsigned long reg, unsigned long v)
+{
+	paravirt_ops.apic_write(reg,v);
+}
+
+static inline void apic_write_atomic(unsigned long reg, unsigned long v)
+{
+	paravirt_ops.apic_write_atomic(reg,v);
+}
+
+static inline unsigned long apic_read(unsigned long reg)
+{
+	return paravirt_ops.apic_read(reg);
+}
+#endif
+
+
 /* These all sit in the .parainstructions section to tell us what to patch. */
 struct paravirt_patch {
 	u8 *instr; 		/* original instructions */