Hi I'm trying to emulate the lwz instruction in powerpc e500 kvm for my project . And the instruction can modify any of the 32 gpr's . So i'm resuming the guest using RESUME_GUEST_NV Flag so that all the gpr's can be updated . But somehow the the guest OS doesn't boots after that. I took the vcpu dump before emulating the instruction and after emulating it . Also i took the vcpu dump without emulating the instruction just before and just after the emulation . And i'm surprised to see that while lwz should have changed only one gpr instrction which i'm doing and is getting correctly emulated but int he original dump there are more then 1 gpr is modified and this problem only arrives when i use RESUME_GUEST_NV but if i use RESUME_GUEST all other registers get modified correctly while the one which lwz should have modified if it belongs to gpr15-31 then the change doesn't reflects there. I'm attaching the vcpu dump Inst=0x8249a0e0, opcode:32 xop:112 RT: 18 , RA: 9, D: 0xa0e0 Data (to be written in RT) 0x20000000 (VCPU Dump just before the instruction is executed) pc: c055f518 msr: 00021002 lr: c055f710 ctr: 00000001 srr0: c0548560 srr1: 00021002 exceptions: 00000000 gpr00: 00000000 c05b3ee0 c05872e0 00000000 gpr04: 00000ae7 00000000 00000004 00000000 gpr08: 00000000 c05c0000 0000005b c0a0073b gpr12: 88000082 00000000 00000000 00000000 gpr16: 00000000 00000000 00000000 00000000 gpr20: 00000000 00000000 00000000 00000000 gpr24: 00000000 00000000 00001620 00000000 gpr28: c05c0000 00000adf c05c0000 c05b3f68 (VCPU DUMP just at the next instruction if i don't emulate the instruction ) pc: c055f51c msr: 00021002 lr: c055f710 ctr: 00000001 srr0: c0548560 srr1: 00021002 exceptions: 00000000 gpr00: 00000000 c05b3ee0 c05872e0 00000000 gpr04: 00000ae7 00000000 00000004 00000000 gpr08: 00000000 c05c0000 0000005b c0a0073b gpr12: 88000082 00000000 00000000 00000000 gpr16: 00000000 00000000 20000000 00000000 gpr20: 00000000 00000000 00000000 00000000 gpr24: ffffffff fffffffc 00001620 00000000 gpr28: 00000000 00000ae4 00000000 00000000 (VCPU DUMP if i emulate the instruction manually and resume the guest using RESUME_GUEST_NV flag) pc: c055f51c msr: 00021002 lr: c055f710 ctr: 00000001 srr0: c0548560 srr1: 00021002 exceptions: 00000000 gpr00: 00000000 c05b3ee0 c05872e0 00000000 gpr04: 00000ae7 00000000 00000004 00000000 gpr08: 00000000 c05c0000 0000005b c0a0073b gpr12: 88000082 00000000 00000000 00000000 gpr16: 00000000 00000000 20000000 00000000 gpr20: 00000000 00000000 00000000 00000000 gpr24: 00000000 00000000 00001620 00000000 gpr28: c05c0000 00000adf c05c0000 c05b3f68 Thanks in advance . -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
