summaryrefslogtreecommitdiff
path: root/include/asm-x86/paravirt.h
diff options
context:
space:
mode:
authorGlauber de Oliveira Costa <gcosta@redhat.com>2008-01-30 13:31:07 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:31:07 +0100
commitc9dcda5ce46c395c5c99003e259e1973dface640 (patch)
treeaec2a6b41de18d2313c2d620c077835d24222480 /include/asm-x86/paravirt.h
parentb8d1fae7dbde6a1227fa142acecb48dc3dd63817 (diff)
x86: change write msr functions interface
This patche changes the native_write_msr() and friends interface to explicitly take 2 32-bit registers instead of a 64-bit value. The change will ease the merge with 64-bit code. As the 64-bit value will be passed as two registers anyway in i386, the PVOP_CALL interface has to account for that and use low/high parameters It would force the x86_64 version to be different. The change does not make i386 generated code less efficient. As said above, it would get the values from two registers anyway. 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>
Diffstat (limited to 'include/asm-x86/paravirt.h')
-rw-r--r--include/asm-x86/paravirt.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 4782be68d0fa..e95c2a655165 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -115,7 +115,7 @@ struct pv_cpu_ops {
/* MSR, PMC and TSR operations.
err = 0/-EFAULT. wrmsr returns 0/-EFAULT. */
u64 (*read_msr)(unsigned int msr, int *err);
- int (*write_msr)(unsigned int msr, u64 val);
+ int (*write_msr)(unsigned int msr, unsigned low, unsigned high);
u64 (*read_tsc)(void);
u64 (*read_pmc)(int counter);