github/acrn-hypervisor
1
0
Fork 0
mirror of https://github.com/projectacrn/acrn-hypervisor.git synced 2025-09-21 16:57:20 +00:00
Code Issues Projects Releases Wiki Activity

hv: sched: use get_running_vcpu to replace per_cpu vcpu with cpu sharing

Browse Source 
With cpu sharing enabled, per_cpu vcpu cannot work properly as we might
has multiple vcpus running on one pcpu.
Add a schedule API sched_get_current to get current thread_object on
specific pcpu, also add a vcpu API get_running_vcpu to get corresponding
vcpu of the thread_object.

Tracked-On: #3813
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Signed-off-by: Yu Wang <yu1.wang@intel.com>
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Shuo A Liu
2019-06-10 14:49:57 +08:00
committed by ACRN System Integration
parent 891e46453d
commit 7e66c0d4fa
8 changed files with 30 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
hypervisor/arch/x86/guest/vcpu.c
View File

@@ -193,6 +193,18 @@ void vcpu_reset_eoi_exit_bitmaps(struct acrn_vcpu *vcpu)
vcpu_make_request(vcpu, ACRN_REQUEST_EOI_EXIT_BITMAP_UPDATE);
}
struct acrn_vcpu *get_running_vcpu(uint16_t pcpu_id)
{
struct thread_object *curr = sched_get_current(pcpu_id);
struct acrn_vcpu *vcpu = NULL;
if ((curr != NULL) && (!is_idle_thread(curr))) {
vcpu = list_entry(curr, struct acrn_vcpu, thread_obj);
}
return vcpu;
}
struct acrn_vcpu *get_ever_run_vcpu(uint16_t pcpu_id)
{
return per_cpu(ever_run_vcpu, pcpu_id);
@@ -400,8 +412,6 @@ int32_t create_vcpu(uint16_t pcpu_id, struct acrn_vm *vm, struct acrn_vcpu **rtn
* needs revise.
*/
per_cpu(vcpu, pcpu_id) = vcpu;
pr_info("Create VM%d-VCPU%d, Role: %s",
vcpu->vm->vm_id, vcpu->vcpu_id,
is_vcpu_bsp(vcpu) ? "PRIMARY" : "SECONDARY");