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HV: trusty: new hypercall to save/restore context of secure world

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New field in VM's structure:
    sworld_snapshot: save cpu_context of secure world.

New hypercall: HC_SAVE_RESTORE_SWORLD_CTX
    In UOS S3 suspend path: trusty kernel driver will call this hypercall
    to require Hypervisor save context of secure world.
    In UOS S3 resume path: virtual firmware will call this hypercall to
    require Hypervisor restore context of secure world.

New bit in secure_world_control.flag:
    ctx_saved: indicate whether cpu_context of secure world is saved.

Signed-off-by: Qi Yadong <yadong.qi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Qi Yadong
2018-05-25 13:08:04 +08:00
committed by lijinxia
parent 3225b16e5f
commit 2fc3bdec40
7 changed files with 85 additions and 5 deletions
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1
hypervisor/include/public/acrn_hv_defs.h
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@@ -75,6 +75,7 @@
#define HC_ID_TRUSTY_BASE 0x70UL
#define HC_INITIALIZE_TRUSTY BASE_HC_ID(HC_ID, HC_ID_TRUSTY_BASE + 0x00UL)
#define HC_WORLD_SWITCH BASE_HC_ID(HC_ID, HC_ID_TRUSTY_BASE + 0x01UL)
#define HC_SAVE_RESTORE_SWORLD_CTX BASE_HC_ID(HC_ID, HC_ID_TRUSTY_BASE + 0x02UL)
/* Power management */
#define HC_ID_PM_BASE 0x80UL