search for: job_cach

...-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> static struct kmem_cache *msg_cache; +static struct kmem_cache *job_cache; void *kvmi_msg_alloc(void) { @@ -33,14 +34,19 @@ static void kvmi_cache_destroy(void) { kmem_cache_destroy(msg_cache); msg_cache = NULL; + kmem_cache_destroy(job_cache); + job_cache = NULL; } static int kvmi_cache_create(void) { msg_cache = kmem_cache_create("kvmi_msg",...

...sg_hdr { diff --git a/virt/kvm/kvmi.c b/virt/kvm/kvmi.c index d0d9adf5b6ed..5cbc82b284f4 100644 --- a/virt/kvm/kvmi.c +++ b/virt/kvm/kvmi.c @@ -11,10 +11,27 @@ #include <linux/bitmap.h> static struct kmem_cache *msg_cache; +static struct kmem_cache *radix_cache; static struct kmem_cache *job_cache; static bool kvmi_create_vcpu_event(struct kvm_vcpu *vcpu); static void kvmi_abort_events(struct kvm *kvm); +static bool kvmi_track_preread(struct kvm_vcpu *vcpu, gpa_t gpa, gva_t gva, + u8 *new, int bytes, struct kvm_page_track_notifier_node *node, + bool *data_ready); +static bool kvmi_track...

...vmi.c b/virt/kvm/introspection/kvmi.c index aa8a0708cc1c..b57ad490dd06 100644 --- a/virt/kvm/introspection/kvmi.c +++ b/virt/kvm/introspection/kvmi.c @@ -21,6 +21,11 @@ static DECLARE_BITMAP(Kvmi_known_vcpu_events, KVMI_NUM_EVENTS); static struct kmem_cache *msg_cache; static struct kmem_cache *job_cache; +static struct kmem_cache *radix_cache; + +static const u8 full_access = KVMI_PAGE_ACCESS_R | + KVMI_PAGE_ACCESS_W | + KVMI_PAGE_ACCESS_X; void *kvmi_msg_alloc(void) { @@ -39,6 +44,8 @@ static void kvmi_cache_destroy(void) msg_cache = NULL; kmem_cache_destroy(job_cache); job_cach...

..._killable(wq, condition); \ + __ret; \ +}) + #endif /* _LINUX_SWAIT_H */ diff --git a/virt/kvm/kvmi.c b/virt/kvm/kvmi.c index 07ebd1c629b0..3c884dc0e38c 100644 --- a/virt/kvm/kvmi.c +++ b/virt/kvm/kvmi.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-&...

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

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

This patch series is based on the VM introspection patches (https://lore.kernel.org/kvm/20200721210922.7646-1-alazar at bitdefender.com/), extending the introspection API with EPT Views and Virtualization Exceptions (#VE) support. The purpose of this series is to get an initial feedback and to see if we are on the right track, especially because the changes made to add the EPT views are not small