Unknown command 'ATZ' - try 'help' U-Boot# AT S7=45 S0=0 L1 V1 X4 &c1 E1 Q0 syntax error U-Boot# printenv d xn enb - _bootargs xen_bootargs=sync_console console=dtuart dtuart=serial0 dom0_mem=256M U-Boot# setenv xen_bootargs "sync_console console=dtuart dtuart=serial0 dom0_mem=256M    64M" U-Boot# boot reading dra72-evm-lcd10.dtb 90337 bytes read in 10 ms (8.6 MiB/s) reading xen-uImage 754608 bytes read in 43 ms (16.7 MiB/s) reading zImage 4581184 bytes read in 237 ms (18.4 MiB/s) ## Booting kernel from Legacy Image at 90000000 ... Image Name: Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 754544 Bytes = 736.9 KiB Load Address: 80200000 Entry Point: 80200000 Verifying Checksum ... OK ## Flattened Device Tree blob at 825f0000 Booting using the fdt blob at 0x825f0000 Loading Kernel Image ... OK reserving fdt memory region: addr=825f0000 size=17000 Loading Device Tree to 8ffe6000, end 8fffffff ... OK Starting kernel ... - UART enabled - - CPU 00000000 booting - - Xen starting in Hyp mode - - Zero BSS - - Setting up control registers - - Turning on paging - - Ready - (XEN) Checking for initrd in /chosen (XEN) RAM: 0000000080000000 - 00000000bfffffff (XEN) (XEN) MODULE[0]: 000000008ffe6000 - 000000008fffd000 Device Tree (XEN) MODULE[1]: 00000000a0000000 - 00000000a0a00000 Kernel (XEN) RESVD[0]: 00000000825f0000 - 0000000082607000 (XEN) RESVD[1]: 000000008ffe6000 - 000000008fffd000 (XEN) (XEN) Command line: sync_console console=dtuart dtuart=serial0 dom0_mem=64M (XEN) Placing Xen at 0x00000000bfe00000-0x00000000c0000000 (XEN) Update BOOTMOD_XEN from 0000000080200000-0000000080301701 => 00000000bfe00000-00000000bff01701 (XEN) Xen heap: 00000000bc000000-00000000be000000 (8192 pages) (XEN) Dom heap: 253952 pages (XEN) Domain heap initialised (XEN) Platform: TI DRA7 (XEN) Looking for dtuart at "serial0", options "" Xen 4.6-unstable (XEN) Xen version 4.6-unstable (brandonlocal@) (arm-linux-gnueabi-gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3) debug=y Wed Jul 29 17:34:16 EDT 2015 (XEN) Latest ChangeSet: Mon Jul 20 18:25:35 2015 -0400 git:f7ff6a8-dirty (XEN) Console output is synchronous. (XEN) Processor: 412fc0f2: "ARM Limited", variant: 0x2, part 0xc0f, rev 0x2 (XEN) 32-bit Execution: (XEN) Processor Features: 00001131:00011011 (XEN) Instruction Sets: AArch32 A32 Thumb Thumb-2 ThumbEE Jazelle (XEN) Extensions: GenericTimer Security (XEN) Debug Features: 02010555 (XEN) Auxiliary Features: 00000000 (XEN) Memory Model Features: 10201105 20000000 01240000 02102211 (XEN) ISA Features: 02101110 13112111 21232041 11112131 10011142 00000000 (XEN) Set AuxCoreBoot1 to 00000000bfe0004c (0020004c) (XEN) Set AuxCoreBoot0 to 0x20 (XEN) Generic Timer IRQ: phys=30 hyp=26 virt=27 Freq: 6147 KHz (XEN) GICv2 initialization: (XEN) gic_dist_addr=0000000048211000 (XEN) gic_cpu_addr=0000000048212000 (XEN) gic_hyp_addr=0000000048214000 (XEN) gic_vcpu_addr=0000000048216000 (XEN) gic_maintenance_irq=25 (XEN) GICv2: 192 lines, 1 cpu, secure (IID 0000043b). (XEN) Using scheduler: SMP Credit Scheduler (credit) (XEN) Allocated console ring of 16 KiB. (XEN) VFP implementer 0x41 architecture 4 part 0x30 variant 0xf rev 0x0 (XEN) Brought up 1 CPUs (XEN) P2M: 40-bit IPA (XEN) P2M: 3 levels with order-1 root, VTCR 0x80003558 (XEN) I/O virtualisation disabled (XEN) *** LOADING DOMAIN 0 *** (XEN) Loading kernel from boot module @ 00000000a0000000 (XEN) Allocating 1:1 mappings totalling 64MB for dom0: (XEN) BANK[0] 0x000000a4000000-0x000000a8000000 (64MB) (XEN) Loading zImage from 00000000a0000000 to 00000000a7a00000-00000000a7e5e740 (XEN) Allocating PPI 16 for event channel interrupt (XEN) Loading dom0 DTB to 0x00000000a7800000-0x00000000a7815fa7 (XEN) Scrubbing Free RAM on 1 nodes using 1 CPUs (XEN) ........done. (XEN) Initial low memory virq threshold set at 0x4000 pages. (XEN) Std. Loglevel: All (XEN) Guest Loglevel: All (XEN) ********************************************** (XEN) ******* WARNING: CONSOLE OUTPUT IS SYNCHRONOUS (XEN) ******* This option is intended to aid debugging of Xen by ensuring (XEN) ******* that all output is synchronously delivered on the serial line. (XEN) ******* However it can introduce SIGNIFICANT latencies and affect (XEN) ******* timekeeping. It is NOT recommended for production use! (XEN) ********************************************** (XEN) 3... 2... 1... (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen) (XEN) Freed 284kB init memory. (XEN) Data abort from kernel. regs->pc: 0xa7a003d8, regs->hsr.ec: 36, regs->hsr.iss=0x00000046, gva=0xa0004000, gpa=0x00a00040 (XEN) traps.c:2418:d0v0 HSR=0x90000046 pc=0xa7a003d8 gva=0xa0004000 gpa=0x000000a0004000