Displaying 5 results from an estimated 5 matches for "new_access".
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end_access
2019 Aug 09
0
[RFC PATCH v6 64/92] kvm: introspection: add single-stepping
...se)
+ return false;
+
+ kvm_make_all_cpus_request(vcpu->kvm, KVM_REQ_INTROSPECTION |
+ KVM_REQUEST_WAIT);
+
+ ivcpu->ss_owner = true;
+
+ return true;
+}
+
+static bool kvmi_run_ss(struct kvm_vcpu *vcpu, gpa_t gpa, u8 access)
+{
+ struct kvmi *ikvm = IKVM(vcpu->kvm);
+ u8 old_access, new_access;
+ u32 old_write_bitmap;
+ gfn_t gfn = gpa_to_gfn(gpa);
+ int err;
+
+ kvmi_arch_start_single_step(vcpu);
+
+ err = kvmi_get_gfn_access(ikvm, gfn, &old_access, &old_write_bitmap);
+ /* likely was removed from radix tree due to rwx */
+ if (err) {
+ kvmi_warn(ikvm, "%s: gfn 0x%llx not...
2019 Aug 12
1
[RFC PATCH v6 64/92] kvm: introspection: add single-stepping
...->kvm, KVM_REQ_INTROSPECTION |
> + KVM_REQUEST_WAIT);
> +
> + ivcpu->ss_owner = true;
> +
> + return true;
> +}
> +
> +static bool kvmi_run_ss(struct kvm_vcpu *vcpu, gpa_t gpa, u8 access)
> +{
> + struct kvmi *ikvm = IKVM(vcpu->kvm);
> + u8 old_access, new_access;
> + u32 old_write_bitmap;
> + gfn_t gfn = gpa_to_gfn(gpa);
> + int err;
> +
> + kvmi_arch_start_single_step(vcpu);
> +
> + err = kvmi_get_gfn_access(ikvm, gfn, &old_access, &old_write_bitmap);
> + /* likely was removed from radix tree due to rwx */
> + if (err) {...
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
2020 Feb 07
78
[RFC PATCH v7 00/78] 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 VMs (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