Minggui Cao b37008d74e HV: check secure/normal world for EPTP in gpa2hpa ... for secure and normal world has different EPTP, in secure world, it could trap to hypervisor and call gpa2hpa function. So it need check if it is in normal or secure world for EPTP selection. Detailed explanation from Yadong Qi <yadong.qi@intel.com>: Currently, trusty OS does not handle interrupt, so when an interrupt is delivering in trusty, trusty will set it to LAPIC IRR register by inject self_ipi() and then call world_switch to switch to Android, So android will receive/handle the interrupt properly.Since the vLAPIC is enabled in ACRN, so when trusty try to inject self_ipi(), APIC-ACCESS vmexit will happen. Then ACRN will do instruction decode/emulation, so the GPA2HPA will fail since page walk is using nworld_eptp. It is probability an issue. Signed-off-by: Minggui Cao <minggui.cao@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>		2018-08-17 14:31:43 +08:00
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x86	HV: check secure/normal world for EPTP in gpa2hpa	2018-08-17 14:31:43 +08:00