search for: job_list

...kvm_vcpu; #define KVMI_NUM_COMMANDS KVMI_NUM_MESSAGES +struct kvmi_job { + struct list_head link; + void *ctx; + void (*fct)(struct kvm_vcpu *vcpu, void *ctx); + void (*free_fct)(void *ctx); +}; + struct kvm_vcpu_introspection { struct kvm_vcpu_arch_introspection arch; + + struct list_head job_list; + spinlock_t job_lock; }; struct kvm_introspection { diff --git a/virt/kvm/introspection/kvmi.c b/virt/kvm/introspection/kvmi.c index 655170ffb574..5149f8e06131 100644 --- a/virt/kvm/introspection/kvmi.c +++ b/virt/kvm/introspection/kvmi.c @@ -10,6 +10,7 @@ #include <linux/kthread.h>...

...mi.c @@ -135,6 +135,19 @@ static void kvmi_free_job(struct kvmi_job *job) kmem_cache_free(job_cache, job); } +static struct kvmi_job *kvmi_pull_job(struct kvmi_vcpu *ivcpu) +{ + struct kvmi_job *job = NULL; + + spin_lock(&ivcpu->job_lock); + job = list_first_entry_or_null(&ivcpu->job_list, typeof(*job), link); + if (job) + list_del(&job->link); + spin_unlock(&ivcpu->job_lock); + + return job; +} + static bool alloc_ivcpu(struct kvm_vcpu *vcpu) { struct kvmi_vcpu *ivcpu; @@ -496,6 +509,73 @@ void kvmi_destroy_vm(struct kvm *kvm) wait_for_completion_killable(&...

...ing 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

...arameter formatting rules into helper method 845e05b Wrap long lines in Type::Package 18d65ec Whitespace cleanup in Type::SshAuthorizedKey b2e2175 Include necessary Facter stubs f5bc897 Remove test dependencies on QUANTITY of calls 51adf31 Reset the @macosx_version_major variable 4b9dfdd Reset the @job_list variable between tests 446a5bf Remove use of defined?() 0e4079d Use memoization instead of ''unless'' 9d504ff (#9796) ssh_authorized_key supports whitespace again 122b8c2 (#9459) Fix problems with Windows ''user'' and ''group'' providers. ee107cf Use...

...ol need_to_wait(struct kvm_vcpu *vcpu) +{ + struct kvmi_vcpu *ivcpu = IVCPU(vcpu); + + return ivcpu->reply_waiting; +} + static bool done_waiting(struct kvm_vcpu *vcpu) { struct kvmi_vcpu *ivcpu = IVCPU(vcpu); + if (!need_to_wait(vcpu)) + return true; + return !list_empty(&ivcpu->job_list); } @@ -552,6 +564,9 @@ int kvmi_run_jobs_and_wait(struct kvm_vcpu *vcpu) break; } + if (!need_to_wait(vcpu)) + break; + kvmi_add_job(vcpu, kvmi_job_wait, NULL, NULL); } diff --git a/virt/kvm/kvmi_int.h b/virt/kvm/kvmi_int.h index 33ea05cb99af..70c8ca0343a3 100644 --- a/virt/k...

...int kvmi_cmd_write_physical(struct kvm *kvm, u64 gpa, u64 size, const void *buf) return 0; } + +static struct kvmi_job *kvmi_pull_job(struct kvm_vcpu_introspection *vcpui) +{ + struct kvmi_job *job = NULL; + + spin_lock(&vcpui->job_lock); + job = list_first_entry_or_null(&vcpui->job_list, typeof(*job), link); + if (job) + list_del(&job->link); + spin_unlock(&vcpui->job_lock); + + return job; +} + +void kvmi_run_jobs(struct kvm_vcpu *vcpu) +{ + struct kvm_vcpu_introspection *vcpui = VCPUI(vcpu); + struct kvmi_job *job; + + while ((job = kvmi_pull_job(vcpui))) { + job...

...int.h > @@ -126,6 +126,9 @@ struct kvmi_vcpu { > DECLARE_BITMAP(high, KVMI_NUM_MSR); > } msr_mask; > > + bool ss_owner; Why is single-stepping mutually exclusive across all vCPUs? Does that always have to be the case? > + bool ss_requested; > + > struct list_head job_list; > spinlock_t job_lock; > > @@ -151,6 +154,15 @@ struct kvmi { > DECLARE_BITMAP(event_allow_mask, KVMI_NUM_EVENTS); > DECLARE_BITMAP(vm_ev_mask, KVMI_NUM_EVENTS); > > +#define SINGLE_STEP_MAX_DEPTH 8 > + struct { > + gfn_t gfn; > + u8 old_access; > + u3...

...arameter formatting rules into helper method 845e05b Wrap long lines in Type::Package 18d65ec Whitespace cleanup in Type::SshAuthorizedKey b2e2175 Include necessary Facter stubs f5bc897 Remove test dependencies on QUANTITY of calls 51adf31 Reset the @macosx_version_major variable 4b9dfdd Reset the @job_list variable between tests 446a5bf Remove use of defined?() 0e4079d Use memoization instead of ''unless'' 9d504ff (#9796) ssh_authorized_key supports whitespace again 122b8c2 (#9459) Fix problems with Windows ''user'' and ''group'' providers. ee107cf Use...

...LLOC (sizeof(struct kvmi_msg_hdr) + KVMI_MSG_SIZE) @@ -120,6 +120,10 @@ struct kvmi_vcpu { DECLARE_BITMAP(ev_mask, KVMI_NUM_EVENTS); DECLARE_BITMAP(cr_mask, KVMI_NUM_CR); + struct { + DECLARE_BITMAP(low, KVMI_NUM_MSR); + DECLARE_BITMAP(high, KVMI_NUM_MSR); + } msr_mask; struct list_head job_list; spinlock_t job_lock; @@ -258,5 +262,7 @@ int kvmi_arch_cmd_inject_exception(struct kvm_vcpu *vcpu, u8 vector, u64 address); int kvmi_arch_cmd_control_cr(struct kvm_vcpu *vcpu, const struct kvmi_control_cr *req); +int kvmi_arch_cmd_control_msr(struct kvm_vcpu *vcpu, + co...

...diff --git a/virt/kvm/kvmi_int.h b/virt/kvm/kvmi_int.h index d7f9858d3e97..1550fe33ed48 100644 --- a/virt/kvm/kvmi_int.h +++ b/virt/kvm/kvmi_int.h @@ -126,6 +126,9 @@ struct kvmi_vcpu { DECLARE_BITMAP(high, KVMI_NUM_MSR); } msr_mask; + bool ss_owner; + bool ss_requested; + struct list_head job_list; spinlock_t job_lock; @@ -151,6 +154,15 @@ struct kvmi { DECLARE_BITMAP(event_allow_mask, KVMI_NUM_EVENTS); DECLARE_BITMAP(vm_ev_mask, KVMI_NUM_EVENTS); +#define SINGLE_STEP_MAX_DEPTH 8 + struct { + gfn_t gfn; + u8 old_access; + u32 old_write_bitmap; + } ss_context[SINGLE_STEP_MAX_DEPT...

...uct kvm_vcpu_introspection *vcpui = VCPUI(vcpu); + int err = 0; + + vcpui->waiting_for_reply = true; + + while (vcpui->waiting_for_reply && !err) { + kvmi_run_jobs(vcpu); + + err = swait_event_killable_exclusive(*wq, + !vcpui->waiting_for_reply || + !list_empty(&vcpui->job_list)); + } + + return err; +} + +static int kvmi_send_event(struct kvm_vcpu *vcpu, u32 ev_id, + void *ev, size_t ev_size, + void *rpl, size_t rpl_size, int *action) +{ + struct kvmi_msg_hdr hdr; + struct kvmi_event common; + struct kvec vec[] = { + {.iov_base = &hdr, .iov_len = sizeof(hd...

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

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

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

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