| Message ID | 20210426090644.2218834-3-hikalium@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | x86/kvm: Virtual suspend time injection support | expand |
On Monday, 2021-04-26 at 18:06:41 +09, Hikaru Nishida wrote: > This patch adds definitions that are needed by both host and guest s/This patch adds/Add/ > to implement virtual suspend time injection. > This patch also adds #include <linux/kvm_host.h> in s/This patch also adds/Also add/ > kernel/time/timekeeping.c to make necesarily functions which will be s/necesarily/necessary/ > introduced in later patches available. > > Signed-off-by: Hikaru Nishida <hikalium@chromium.org> > --- > > arch/x86/include/uapi/asm/kvm_para.h | 6 ++++++ > kernel/time/timekeeping.c | 1 + > 2 files changed, 7 insertions(+) > > diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h > index 950afebfba88..13788b01094f 100644 > --- a/arch/x86/include/uapi/asm/kvm_para.h > +++ b/arch/x86/include/uapi/asm/kvm_para.h > @@ -33,6 +33,7 @@ > #define KVM_FEATURE_PV_SCHED_YIELD 13 > #define KVM_FEATURE_ASYNC_PF_INT 14 > #define KVM_FEATURE_MSI_EXT_DEST_ID 15 > +#define KVM_FEATURE_HOST_SUSPEND_TIME 16 > > #define KVM_HINTS_REALTIME 0 > > @@ -54,6 +55,7 @@ > #define MSR_KVM_POLL_CONTROL 0x4b564d05 > #define MSR_KVM_ASYNC_PF_INT 0x4b564d06 > #define MSR_KVM_ASYNC_PF_ACK 0x4b564d07 > +#define MSR_KVM_HOST_SUSPEND_TIME 0x4b564d08 > > struct kvm_steal_time { > __u64 steal; > @@ -64,6 +66,10 @@ struct kvm_steal_time { > __u32 pad[11]; > }; > > +struct kvm_host_suspend_time { > + __u64 suspend_time_ns; > +}; > + > #define KVM_VCPU_PREEMPTED (1 << 0) > #define KVM_VCPU_FLUSH_TLB (1 << 1) > > diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c > index 6aee5768c86f..ff0304de7de9 100644 > --- a/kernel/time/timekeeping.c > +++ b/kernel/time/timekeeping.c > @@ -22,6 +22,7 @@ > #include <linux/pvclock_gtod.h> > #include <linux/compiler.h> > #include <linux/audit.h> > +#include <linux/kvm_host.h> > > #include "tick-internal.h" > #include "ntp_internal.h" > -- > 2.31.1.498.g6c1eba8ee3d-goog dme.
diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h index 950afebfba88..13788b01094f 100644 --- a/arch/x86/include/uapi/asm/kvm_para.h +++ b/arch/x86/include/uapi/asm/kvm_para.h @@ -33,6 +33,7 @@ #define KVM_FEATURE_PV_SCHED_YIELD 13 #define KVM_FEATURE_ASYNC_PF_INT 14 #define KVM_FEATURE_MSI_EXT_DEST_ID 15 +#define KVM_FEATURE_HOST_SUSPEND_TIME 16 #define KVM_HINTS_REALTIME 0 @@ -54,6 +55,7 @@ #define MSR_KVM_POLL_CONTROL 0x4b564d05 #define MSR_KVM_ASYNC_PF_INT 0x4b564d06 #define MSR_KVM_ASYNC_PF_ACK 0x4b564d07 +#define MSR_KVM_HOST_SUSPEND_TIME 0x4b564d08 struct kvm_steal_time { __u64 steal; @@ -64,6 +66,10 @@ struct kvm_steal_time { __u32 pad[11]; }; +struct kvm_host_suspend_time { + __u64 suspend_time_ns; +}; + #define KVM_VCPU_PREEMPTED (1 << 0) #define KVM_VCPU_FLUSH_TLB (1 << 1) diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 6aee5768c86f..ff0304de7de9 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -22,6 +22,7 @@ #include <linux/pvclock_gtod.h> #include <linux/compiler.h> #include <linux/audit.h> +#include <linux/kvm_host.h> #include "tick-internal.h" #include "ntp_internal.h"
This patch adds definitions that are needed by both host and guest to implement virtual suspend time injection. This patch also adds #include <linux/kvm_host.h> in kernel/time/timekeeping.c to make necesarily functions which will be introduced in later patches available. Signed-off-by: Hikaru Nishida <hikalium@chromium.org> --- arch/x86/include/uapi/asm/kvm_para.h | 6 ++++++ kernel/time/timekeeping.c | 1 + 2 files changed, 7 insertions(+)