Glauber de Oliveira Costa wrote: > This patch introduces the include files for kvm clock. > They'll be needed for both guest and host part. > > Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]> > --- > include/asm-x86/kvm_para.h | 23 +++++++++++++++++++++++ > include/linux/kvm.h | 1 + > include/linux/kvm_para.h | 20 ++++++++++++++++++++ > 3 files changed, 44 insertions(+), 0 deletions(-) > > diff --git a/include/asm-x86/kvm_para.h b/include/asm-x86/kvm_para.h > index c6f3fd8..af9fb75 100644 > --- a/include/asm-x86/kvm_para.h > +++ b/include/asm-x86/kvm_para.h > @@ -10,15 +10,38 @@ > * paravirtualization, the appropriate feature bit should be checked. > */ > #define KVM_CPUID_FEATURES 0x40000001 > +#define KVM_FEATURE_CLOCKEVENTS 0 > +#define KVM_FEATURE_CLOCKSOURCE 1 > + > > #ifdef __KERNEL__ > #include <asm/processor.h> > +extern void kvmclock_init(void); > + > +union kvm_hv_clock { >
Why two copies of this structure? > + struct { > + u64 tsc_mult; > + u64 now_ns; > + /* That's the wall clock, not the water closet */ > + u64 wc_sec; > + u64 wc_nsec; > + u64 last_tsc; > + /* At first, we could use the tsc value as a marker, but Jeremy > + * well noted that it will cause us locking problems in 32-bit > + * sys, so we have a special version field */ > + u32 version; > + }; > + char page_align[PAGE_SIZE]; > +}; > + > [...] > + > +union kvm_hv_clock { > + struct { > + u64 tsc_mult; > + u64 now_ns; > + /* That's the wall clock, not the water closet */ > + u64 wc_sec; > + u64 wc_nsec; > + u64 last_tsc; > + /* At first, we could use the tsc value as a marker, but Jeremy > + * well noted that it will cause us locking problems in 32-bit > + * sys, so we have a special version field */ > + u32 version; > + }; > + char page_align[PAGE_SIZE]; > +}; > + > /* > * hypercalls use architecture specific > */ > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/