Displaying 4 results from an estimated 4 matches for "ss_context".
2019 Aug 09
0
[RFC PATCH v6 64/92] kvm: introspection: add single-stepping
...ruct kvm *kvm = vcpu->kvm;
+ struct kvmi *ikvm;
+ int i;
+
+ ikvm = kvmi_get(kvm);
+ if (!ikvm)
+ return;
+
+ if (unlikely(!ivcpu->ss_owner)) {
+ kvmi_warn(ikvm, "%s\n", __func__);
+ goto out;
+ }
+
+ for (i = ikvm->ss_level; i--;)
+ kvmi_set_gfn_access(kvm,
+ ikvm->ss_context[i].gfn,
+ ikvm->ss_context[i].old_access,
+ ikvm->ss_context[i].old_write_bitmap);
+
+ ikvm->ss_level = 0;
+
+ kvmi_arch_stop_single_step(vcpu);
+
+ atomic_set(&ikvm->ss_active, false);
+ /*
+ * Make ss_active update visible
+ * before resuming all the other vCPUs.
+...
2019 Aug 12
1
[RFC PATCH v6 64/92] kvm: introspection: add single-stepping
...+
> + ikvm = kvmi_get(kvm);
> + if (!ikvm)
> + return;
> +
> + if (unlikely(!ivcpu->ss_owner)) {
> + kvmi_warn(ikvm, "%s\n", __func__);
> + goto out;
> + }
> +
> + for (i = ikvm->ss_level; i--;)
> + kvmi_set_gfn_access(kvm,
> + ikvm->ss_context[i].gfn,
> + ikvm->ss_context[i].old_access,
> + ikvm->ss_context[i].old_write_bitmap);
> +
> + ikvm->ss_level = 0;
> +
> + kvmi_arch_stop_single_step(vcpu);
> +
> + atomic_set(&ikvm->ss_active, false);
> + /*
> + * Make ss_active update v...
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