1 files changed, 35 insertions, 19 deletions

diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index d6236eb46466..3d419398499b 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -231,7 +231,8 @@ struct pv_mmu_ops {
         void (*set_pte_at)(struct mm_struct *mm, unsigned long addr,
                            pte_t *ptep, pte_t pteval);
         void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval);
-        void (*pte_update)(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
+        void (*pte_update)(struct mm_struct *mm, unsigned long addr,
+                           pte_t *ptep);
         void (*pte_update_defer)(struct mm_struct *mm,
                                  unsigned long addr, pte_t *ptep);
 
@@ -246,7 +247,8 @@ struct pv_mmu_ops {
         void (*set_pte_atomic)(pte_t *ptep, pte_t pteval);
         void (*set_pte_present)(struct mm_struct *mm, unsigned long addr,
                                 pte_t *ptep, pte_t pte);
-        void (*pte_clear)(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
+        void (*pte_clear)(struct mm_struct *mm, unsigned long addr,
+                          pte_t *ptep);
         void (*pmd_clear)(pmd_t *pmdp);
 
 #endif  /* CONFIG_X86_PAE */
@@ -274,8 +276,7 @@ struct pv_mmu_ops {
 /* This contains all the paravirt structures: we get a convenient
  * number for each function using the offset which we use to indicate
  * what to patch. */
-struct paravirt_patch_template
-{
+struct paravirt_patch_template {
         struct pv_init_ops pv_init_ops;
         struct pv_time_ops pv_time_ops;
         struct pv_cpu_ops pv_cpu_ops;
@@ -660,43 +661,56 @@ static inline int paravirt_write_msr(unsigned msr, unsigned low, unsigned high)
 }
 
 /* These should all do BUG_ON(_err), but our headers are too tangled. */
-#define rdmsr(msr,val1,val2) do {               \
+#define rdmsr(msr, val1, val2)                  \
+do {                                            \
         int _err;                               \
         u64 _l = paravirt_read_msr(msr, &_err); \
         val1 = (u32)_l;                         \
         val2 = _l >> 32;                        \
-} while(0)
+} while (0)
 
-#define wrmsr(msr,val1,val2) do {               \
+#define wrmsr(msr, val1, val2)                  \
+do {                                            \
         paravirt_write_msr(msr, val1, val2);    \
-} while(0)
+} while (0)
 
-#define rdmsrl(msr,val) do {                    \
+#define rdmsrl(msr, val)                        \
+do {                                            \
         int _err;                               \
         val = paravirt_read_msr(msr, &_err);    \
-} while(0)
+} while (0)
 
-#define wrmsrl(msr,val)         wrmsr(msr, (u32)((u64)(val)), ((u64)(val))>>32)
-#define wrmsr_safe(msr,a,b)     paravirt_write_msr(msr, a, b)
+#define wrmsrl(msr, val)        wrmsr(msr, (u32)((u64)(val)), ((u64)(val))>>32)
+#define wrmsr_safe(msr, a, b)   paravirt_write_msr(msr, a, b)
 
 /* rdmsr with exception handling */
-#define rdmsr_safe(msr,a,b) ({                  \
+#define rdmsr_safe(msr, a, b)                   \
+({                                              \
         int _err;                               \
         u64 _l = paravirt_read_msr(msr, &_err); \
         (*a) = (u32)_l;                         \
         (*b) = _l >> 32;                        \
-        _err; })
+        _err;                                   \
+})
+
+static inline int rdmsrl_safe(unsigned msr, unsigned long long *p)
+{
+        int err;
 
+        *p = paravirt_read_msr(msr, &err);
+        return err;
+}
 
 static inline u64 paravirt_read_tsc(void)
 {
         return PVOP_CALL0(u64, pv_cpu_ops.read_tsc);
 }
 
-#define rdtscl(low) do {                        \
+#define rdtscl(low)                             \
+do {                                            \
         u64 _l = paravirt_read_tsc();           \
         low = (int)_l;                          \
-} while(0)
+} while (0)
 
 #define rdtscll(val) (val = paravirt_read_tsc())
 
@@ -711,11 +725,12 @@ static inline unsigned long long paravirt_read_pmc(int counter)
         return PVOP_CALL1(u64, pv_cpu_ops.read_pmc, counter);
 }
 
-#define rdpmc(counter,low,high) do {            \
+#define rdpmc(counter, low, high)               \
+do {                                            \
         u64 _l = paravirt_read_pmc(counter);    \
         low = (u32)_l;                          \
         high = _l >> 32;                        \
-} while(0)
+} while (0)
 
 static inline unsigned long long paravirt_rdtscp(unsigned int *aux)
 {
@@ -794,7 +809,8 @@ static inline void set_iopl_mask(unsigned mask)
 }
 
 /* The paravirtualized I/O functions */
-static inline void slow_down_io(void) {
+static inline void slow_down_io(void)
+{
         pv_cpu_ops.io_delay();
 #ifdef REALLY_SLOW_IO
         pv_cpu_ops.io_delay();