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e97b171ca2
Secure interrupt (interrupt belongs to TEE) comes when TEE vcpu is running, the interrupt will be injected to TEE directly. But when REE vcpu is running at that time, we need to switch to TEE for handling. Non-Secure interrupt (interrupt belongs to REE) comes when REE vcpu is running, the interrupt will be injected to REE directly. But when TEE vcpu is running at that time, we need to inject a predefined vector to TEE for notification and continue to switch back to TEE for running. To sum up, when secure interrupt comes, switch to TEE immediately regardless of whether REE is running or not; when non-Secure interrupt comes and TEE is running, just notify the TEE and keep it running, TEE will switch to REE on its own initiative after completing its work. Tracked-On: projectacrn#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> |
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