From: Hongyong Zang <zanghongyong@xxxxxxxxxx>
This function finds the kvm structure from its corresponding user
space process, such as qemu process.
Signed-off-by: Hongyong Zang <zanghongyong@xxxxxxxxxx>
---
include/linux/kvm_host.h | 2 +-
virt/kvm/kvm_main.c | 13 +++++++++++++
2 files changed, 14 insertions(+), 1 deletions(-)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 8c5c303..1b2f027 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -801,4 +801,4 @@ static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu)
}
#endif
-
+struct kvm *get_kvm_from_task(struct task_struct *task);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index e289486..458fe29 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2664,6 +2664,19 @@ static const struct file_operations *stat_fops[] = {
[KVM_STAT_VM] = &vm_stat_fops,
};
+struct kvm* get_kvm_from_task(struct task_struct *task)
+{
+ struct kvm *kvm;
+
+ list_for_each_entry(kvm, &vm_list, vm_list) {
+ if(kvm->mm == task->mm)
+ return kvm;
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(get_kvm_from_task);
+
static void kvm_init_debug(void)
{
struct kvm_stats_debugfs_item *p;
--
1.7.1
--
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