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hv: add function to return to VM0

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Emulate VM0 resume from S3 state:
 - reset BSP of VM0
 - set the BSP entry to saved VM0 wakeup vec and set BSP to real mode
 - start BSP

To match trampoline_spinlock release on ACRN Sx resume path, acquire
trampoline_spinlock if ACRN Sx enter fails.

Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Yin Fengwei
2018-06-14 23:05:08 +08:00
committed by Xie, nanlin
parent 02d819144e
commit 0f9d9641d4
3 changed files with 36 additions and 0 deletions
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hypervisor/include/arch/x86/guest/vm.h
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@@ -172,6 +172,7 @@ struct vm_description {
int shutdown_vm(struct vm *vm);
void pause_vm(struct vm *vm);
void resume_vm(struct vm *vm);
void resume_vm_from_s3(struct vm *vm, uint32_t wakeup_vec);
int start_vm(struct vm *vm);
int create_vm(struct vm_description *vm_desc, struct vm **vm);
int prepare_vm0(void);