Displaying 4 results from an estimated 4 matches for "swait_event_killable".
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__swait_event_killable
2019 Aug 13
1
[RFC PATCH v6 16/92] kvm: introspection: handle events and event replies
...d through a job.
Can you have instead just kvm_run_jobs in KVM_REQ_INTROSPECTION, and
something like this instead when sending an event:
int kvmi_wait_for_reply(struct kvm_vcpu *vcpu)
{
struct kvmi_vcpu *ivcpu = IVCPU(vcpu);
while (ivcpu->waiting_for_reply) {
kvmi_run_jobs(vcpu);
err = swait_event_killable(*wq,
!ivcpu->waiting_for_reply ||
!list_empty(&ivcpu->job_list));
if (err)
return -EINTR;
}
return 0;
}
?
Paolo
2019 Aug 09
0
[RFC PATCH v6 13/92] kvm: introspection: make the vCPU wait even when its jobs list is empty
...++++++
virt/kvm/kvmi_int.h | 2 ++
3 files changed, 93 insertions(+)
diff --git a/include/linux/swait.h b/include/linux/swait.h
index 73e06e9986d4..2486625e7fb4 100644
--- a/include/linux/swait.h
+++ b/include/linux/swait.h
@@ -297,4 +297,15 @@ do { \
__ret; \
})
+#define __swait_event_killable(wq, condition) \
+ ___swait_event(wq, condition, TASK_KILLABLE, 0, schedule()) \
+
+#define swait_event_killable(wq, condition) \
+({ \
+ int __ret = 0; \
+ if (!(condition)) \
+ __ret = __swait_event_killable(wq, condition); \
+ __ret; \
+})
+
#endif /* _LINUX_SW...
2019 Aug 09
117
[RFC PATCH v6 00/92] VM introspection
The KVM introspection subsystem provides a facility for applications running
on the host or in a separate VM, to control the execution of other VM-s
(pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.),
alter the page access bits in the shadow page tables (only for the hardware
backed ones, eg. Intel's EPT) and receive notifications when events of
interest have taken place
2019 Aug 09
117
[RFC PATCH v6 00/92] VM introspection
The KVM introspection subsystem provides a facility for applications running
on the host or in a separate VM, to control the execution of other VM-s
(pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.),
alter the page access bits in the shadow page tables (only for the hardware
backed ones, eg. Intel's EPT) and receive notifications when events of
interest have taken place