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hv: schedule: schedule to idel after SOS resume form S3

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After "commit f0e1c5e init vcpu host stack when reset vcpu", SOS resume form S3
wants to schedule to vcpu_thread not the point where SOS enter S3. So we should
schedule to idel first then reschedule to execute vcpu_thread.

Tracked-On: #3387
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
This commit is contained in:
Li, Fei1
2019-07-25 18:48:03 +08:00
committed by wenlingz
parent 7b22456786
commit 4a27d08360
6 changed files with 18 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
hypervisor/arch/x86/guest/pm.c
View File

@@ -168,6 +168,7 @@ static inline void enter_s3(struct acrn_vm *vm, uint32_t pm1a_cnt_val, uint32_t
static bool pm1ab_io_write(struct acrn_vm *vm, uint16_t addr, size_t width, uint32_t v)
{
static uint32_t pm1a_cnt_ready = 0U;
uint32_t pm1a_cnt_val;
bool to_write = true;
if (width == 2U) {
@@ -188,8 +189,9 @@ static bool pm1ab_io_write(struct acrn_vm *vm, uint16_t addr, size_t width, uint
&& (val == vm->pm.sx_state_data->s3_pkg.val_pm1b) && (s3_enabled(v) != 0U)) {
if (pm1a_cnt_ready != 0U) {
enter_s3(vm, pm1a_cnt_ready, v);
pm1a_cnt_val = pm1a_cnt_ready;
pm1a_cnt_ready = 0U;
enter_s3(vm, pm1a_cnt_val, v);
} else {
/* the case broke ACPI spec */
pr_err("PM1B_CNT write error!");

2
hypervisor/arch/x86/guest/vcpu.c
View File

@@ -323,7 +323,7 @@ void reset_vcpu_regs(struct acrn_vcpu *vcpu)
set_vcpu_regs(vcpu, &realmode_init_regs);
}
void set_ap_entry(struct acrn_vcpu *vcpu, uint64_t entry)
void set_vcpu_startup_entry(struct acrn_vcpu *vcpu, uint64_t entry)
{
struct ext_context *ectx;

2
hypervisor/arch/x86/guest/vlapic.c
View File

@@ -1159,7 +1159,7 @@ vlapic_process_init_sipi(struct acrn_vcpu* target_vcpu, uint32_t mode, uint32_t
pr_err("Start Secondary VCPU%hu for VM[%d]...",
target_vcpu->vcpu_id,
target_vcpu->vm->vm_id);
set_ap_entry(target_vcpu, (icr_low & APIC_VECTOR_MASK) << 12U);
set_vcpu_startup_entry(target_vcpu, (icr_low & APIC_VECTOR_MASK) << 12U);
schedule_vcpu(target_vcpu);
}
}

11
hypervisor/arch/x86/guest/vm.c
View File

@@ -608,13 +608,13 @@ int32_t shutdown_vm(struct acrn_vm *vm)
*/
void start_vm(struct acrn_vm *vm)
{
struct acrn_vcpu *vcpu = NULL;
struct acrn_vcpu *bsp = NULL;
vm->state = VM_STARTED;
/* Only start BSP (vid = 0) and let BSP start other APs */
vcpu = vcpu_from_vid(vm, 0U);
schedule_vcpu(vcpu);
bsp = vcpu_from_vid(vm, BOOT_CPU_ID);
schedule_vcpu(bsp);
}
/**
@@ -702,7 +702,7 @@ void pause_vm(struct acrn_vm *vm)
*/
void resume_vm_from_s3(struct acrn_vm *vm, uint32_t wakeup_vec)
{
struct acrn_vcpu *bsp = vcpu_from_vid(vm, 0U);
struct acrn_vcpu *bsp = vcpu_from_vid(vm, BOOT_CPU_ID);
vm->state = VM_STARTED;
@@ -711,10 +711,11 @@ void resume_vm_from_s3(struct acrn_vm *vm, uint32_t wakeup_vec)
/* When SOS resume from S3, it will return to real mode
* with entry set to wakeup_vec.
*/
set_ap_entry(bsp, wakeup_vec);
set_vcpu_startup_entry(bsp, wakeup_vec);
init_vmcs(bsp);
schedule_vcpu(bsp);
switch_to_idle(default_idle);
}
/**