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hv: tee: add x86_tee hypercall interfaces

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This patch adds the x86_tee hypercall interfaces.

- HC_TEE_VCPU_BOOT_DONE

This hypercall is used to notify the hypervisor that the TEE VCPU Boot
is done, so that we can sleep the corresponding TEE VCPU. REE will be
started at the last time this hypercall is called by TEE.

- HC_SWITCH_EE

For REE VM, it uses this hypercall to request TEE service.

For TEE VM, it uses this hypercall to switch back to REE
when it completes the REE service.

Tracked-On: #6571
Signed-off-by: Jie Deng <jie.deng@intel.com>
Reviewed-by: Wang, Yu1 <yu1.wang@intel.com>
Acked-by: Eddie Dong <eddie.dong@Intel.com>
This commit is contained in:
Jie Deng
2021-11-12 15:13:08 +08:00
committed by wenlingz
parent f3792a74a3
commit 3c9c41b656
6 changed files with 92 additions and 16 deletions
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26
hypervisor/include/common/hypercall.h
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@@ -477,6 +477,32 @@ int32_t hcall_initialize_trusty(struct acrn_vcpu *vcpu, struct acrn_vm *target_v
int32_t hcall_save_restore_sworld_ctx(struct acrn_vcpu *vcpu, struct acrn_vm *target_vm,
uint64_t param1, uint64_t param2);
/**
* @brief Handle the TEE boot done signal.
*
* @param vcpu Pointer to VCPU data structure
* @param target_vm not used
* @param param1 not used
* @param param2 not used
*
* @return 0 on success, non-zero on error.
*/
int32_t hcall_handle_tee_vcpu_boot_done(struct acrn_vcpu *vcpu, struct acrn_vm *target_vm,
uint64_t param1, uint64_t param2);
/**
* @brief Switch the execution environment.
*
* @param vcpu Pointer to VCPU data structure
* @param target_vm not used
* @param param1 not used
* @param param2 not used
*
* @return 0 on success, non-zero on error.
*/
int32_t hcall_switch_ee(struct acrn_vcpu *vcpu, struct acrn_vm *target_vm,
uint64_t param1, uint64_t param2);
/**
* @}
*/