| Message ID | 20220127215548.2016946-3-jmattson@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [kvm-unit-tests,1/3] x86: tsc_adjust: Remove flaky timing test | expand |
On 1/27/22 22:55, Jim Mattson wrote: > Remove some inline assembly code duplication and opportunistically > replace the magic constant, "0x10," with "MSR_IA32_TSC." > > Signed-off-by: Jim Mattson <jmattson@google.com> > --- > lib/x86/processor.h | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/lib/x86/processor.h b/lib/x86/processor.h > index fe5add548261..117032a4895c 100644 > --- a/lib/x86/processor.h > +++ b/lib/x86/processor.h > @@ -592,9 +592,7 @@ static inline unsigned long long rdtscp(u32 *aux) > > static inline void wrtsc(u64 tsc) > { > - unsigned a = tsc, d = tsc >> 32; > - > - asm volatile("wrmsr" : : "a"(a), "d"(d), "c"(0x10)); > + wrmsr(MSR_IA32_TSC, tsc); > } > > static inline void irq_disable(void) Queued all three, thanks. Paolo
diff --git a/lib/x86/processor.h b/lib/x86/processor.h index fe5add548261..117032a4895c 100644 --- a/lib/x86/processor.h +++ b/lib/x86/processor.h @@ -592,9 +592,7 @@ static inline unsigned long long rdtscp(u32 *aux) static inline void wrtsc(u64 tsc) { - unsigned a = tsc, d = tsc >> 32; - - asm volatile("wrmsr" : : "a"(a), "d"(d), "c"(0x10)); + wrmsr(MSR_IA32_TSC, tsc); } static inline void irq_disable(void)
Remove some inline assembly code duplication and opportunistically replace the magic constant, "0x10," with "MSR_IA32_TSC." Signed-off-by: Jim Mattson <jmattson@google.com> --- lib/x86/processor.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)