On Sun, May 03, 2015 at 11:37:29AM +0800, 孙晓阳 wrote: > Hello, > I am intersted in KVM/ARM and I am trying to do some work based on KVM/ARM. > But here is some questions : > 1. if I set HCR.TGE=1, does the system calls will traps into hyp mode and > be handled by hyp_svc( arch/arm/kvm/interrupts.S)? no, hyp_svc is only handling hypervisor calls from hyp mode itself. All traps to Hyp mode are handled in hyp_hvc. See "Use of offset 0x14 in the Hyp vector table" in Section B1.8.1 in the ARMv7 ARM (DDI 0406C.c). > 2. How can I get Guest OS's system call's number and address while issuing > swi instruction in Guest OS usr mode and trapped into Hyp mode? You have to know the ABI of the guest os and decode whatever register/immediate used by that. -Christoffer _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
