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authorGlauber de Oliveira Costa <gcosta@redhat.com>2008-01-30 13:33:19 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:33:19 +0100
commit4c9890c246121d070deb8cf5cf53e80caffc4dde (patch)
tree155d9b1bb978ed421a1485e235be39c0948ecdca
parent046627130591993fd04acef9aebccf70fdad3702 (diff)
x86: puts read and write cr8 into pv_cpu_ops
This patch adds room for read and write_cr8 functions back in pv_cpu_ops struct Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--include/asm-x86/paravirt.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index c56b17a5eba..73547acbbbf 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -101,6 +101,11 @@ struct pv_cpu_ops {
unsigned long (*read_cr4)(void);
void (*write_cr4)(unsigned long);
+#ifdef CONFIG_X86_64
+ unsigned long (*read_cr8)(void);
+ void (*write_cr8)(unsigned long);
+#endif
+
/* Segment descriptor handling */
void (*load_tr_desc)(void);
void (*load_gdt)(const struct desc_ptr *);
@@ -614,6 +619,16 @@ static inline void write_cr4(unsigned long x)
PVOP_VCALL1(pv_cpu_ops.write_cr4, x);
}
+static inline unsigned long read_cr8(void)
+{
+ return PVOP_CALL0(unsigned long, pv_cpu_ops.read_cr8);
+}
+
+static inline void write_cr8(unsigned long x)
+{
+ PVOP_VCALL1(pv_cpu_ops.write_cr8, x);
+}
+
static inline void raw_safe_halt(void)
{
PVOP_VCALL0(pv_irq_ops.safe_halt);