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pm: S5: update the system shutdown logical in ACRN

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For system S5, ACRN had assumption that SOS shutdown will trigger
system shutdown. So the system shutdown logical is:
   1. Trap SOS shutdown
   2. Wait for all other guest shutdown
   3. Shutdown system

The new logical is refined as:
   If all guest is shutdown, shutdown whole system

Tracked-On: #4270
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
This commit is contained in:
Yin Fengwei
2019-12-12 15:06:20 +08:00
committed by wenlingz
parent 197e4a0620
commit bfa19e9104
4 changed files with 45 additions and 39 deletions
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3
hypervisor/include/arch/x86/host_pm.h
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@@ -31,7 +31,8 @@ struct acpi_reset_reg {
struct pm_s_state_data *get_host_sstate_data(void);
void host_enter_s3(const struct pm_s_state_data *sstate_data, uint32_t pm1a_cnt_val, uint32_t pm1b_cnt_val);
void host_enter_s5(const struct pm_s_state_data *sstate_data, uint32_t pm1a_cnt_val, uint32_t pm1b_cnt_val);
void shutdown_system(void);
void save_s5_reg_val(uint32_t pm1a_cnt_val, uint32_t pm1b_cnt_val);
void do_acpi_sx(const struct pm_s_state_data *sstate_data, uint32_t pm1a_cnt_val, uint32_t pm1b_cnt_val);
extern void asm_enter_s3(const struct pm_s_state_data *sstate_data, uint32_t pm1a_cnt_val, uint32_t pm1b_cnt_val);
extern void restore_s3_context(void);