Displaying 4 results from an estimated 4 matches for "prepare_to_swait_exclus".
2019 Aug 13
1
[RFC PATCH v6 14/92] kvm: introspection: handle introspection commands before returning to guest
On 09/08/19 17:59, Adalbert Laz?r wrote:
> + prepare_to_swait_exclusive(&vcpu->wq, &wait,
> + TASK_INTERRUPTIBLE);
> +
> + if (kvm_vcpu_check_block(vcpu) < 0)
> + break;
> +
> + waited = true;
> + schedule();
> +
> + if (kvm_check_request(KVM_REQ_INTROSPECTION, vcpu)) {
> + do_kvmi_work = true;
> +...
2019 Aug 09
0
[RFC PATCH v6 14/92] kvm: introspection: handle introspection commands before returning to guest
...if /* CONFIG_KVM_INTROSPECTION */
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 94f15f393e37..2e11069b9565 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2282,16 +2282,32 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu)
kvm_arch_vcpu_blocking(vcpu);
for (;;) {
- prepare_to_swait_exclusive(&vcpu->wq, &wait, TASK_INTERRUPTIBLE);
+ bool do_kvmi_work = false;
- if (kvm_vcpu_check_block(vcpu) < 0)
- break;
+ for (;;) {
+ prepare_to_swait_exclusive(&vcpu->wq, &wait,
+ TASK_INTERRUPTIBLE);
+
+ if (kvm_vcpu_check_block(vcpu) < 0)
+ break;...
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