Serial console with qemu/realview-eb

[Julian Vetter]

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Hi Stefan,
when I start Qemu I add the command line option "-serial stdio". Maybe
that helps. And my 'modules.list' entry contains 'kernel fiasco
- -serial_esc'.

Cheers,
Julian

On 02/07/2012 12:15 PM, Stefan Fritsch wrote:
> Hi,
> 
> I have some problems getting the serial console to work under qemu
> with ARM/realview-eb. I see the output from L4Linux but it does not
> get any input and also pressing escape does not enter jdb. I have
> tried qemu 1.0 and 0.12.5. I call it with
> 
> qemu-system-arm -M realview-eb -nographic -m 256 -kernel
> .../l4re/obj/l4/arm-rv/images/bootstrap_L4Linux_ARM.elf
> 
> Are there any options one need to pass with "-append"? "-append
> -serial_esc" does not make any difference. Any other ideas?
> 
> L4 version is from l4re-snapshot-2011081207.tar.xz
> 
> Output from qemu is below.
> 
> Cheers, Stefan
> 
> L4 Bootstrapper Build: #12 Thu Jan 26 11:26:11 CET 2012, 4.4.1 
> Scanning up to 256 MB RAM Memory size is 256MB (00000000 -
> 10000000) RAM: 0000000000000000 - 000000000fffffff: 262144kB Total
> RAM: 256MB mod09: 014bc000-017bc000: ramdisk-arm.rd mod08:
> 01201000-014bb524: vmlinuz.arm mod07: 01200000-012000bd: arm-rv.io 
> mod06: 0111a000-011ff124: io mod05: 01119000-01119189: l4lx.cfg 
> mod04: 010c3000-011186dc: ned mod03: 010a8000-010c23c8: l4re mod02:
> 0106d000-010a7ba0: moe mod01: 01063000-0106c6f4: sigma0 mod00:
> 01015000-01062954: fiasco Moving 10 modules to 1100000 with offset
> eb000 moving module 10 { 14bc000-17bc000 } -> { 15a7000-18a7000 } 
> moving module 09 { 1201000-14bb524 } -> { 12ec000-15a6524 } moving
> module 08 { 1200000-12000bd } -> { 12eb000-12eb0bd } moving module
> 07 { 111a000-11ff124 } -> { 1205000-12ea124 } moving module 06 {
> 1119000-1119189 } -> { 1204000-1204189 } moving module 05 {
> 10c3000-11186dc } -> { 11ae000-12036dc } moving module 04 {
> 10a8000-10c23c8 } -> { 1193000-11ad3c8 } moving module 03 {
> 106d000-10a7ba0 } -> { 1158000-1192ba0 } moving module 02 {
> 1063000-106c6f4 } -> { 114e000-11576f4 } moving module 01 {
> 1015000-1062954 } -> { 1100000-114d954 } Scanning fiasco Scanning
> sigma0 Scanning moe rom/l4lx.cfg Relocated mbi to
> [0x100f000-0x100f151] Loading fiasco Loading sigma0 Loading moe 
> find kernel info page... found kernel info page at 0x2000 Regions
> of list regions [     1000,      193f] {      940} Kern   fiasco [
> 2000,     5cfff] {    5b000} Kern   fiasco [    90000,     968f3] {
> 68f4} Sigma0 sigma0 [    98000,     9e17b] {     617c} Sigma0
> sigma0 [   140000,    175d1f] {    35d20} Root   moe [   178000,
> 18ecf7] {    16cf8} Root   moe [  1000000,   10143eb] {    143ec}
> Boot   bootstrap [  100f000,   100f24e] {      24f} Root
> Multiboot info [  1193000,   18a6fff] {   714000} Root   Modules
> Memory API Version: (87) experimental Sigma0 config    ip:000900e0
> sp:01013704 Roottask config  ip:00140178 sp:00000000 Starting
> kernel fiasco at 00001000 Realview System ID: Rev=c HBI=140 Build=0
> Arch=4 FPGA=00 Hello from Startup::stage2 Initialize page table 
> Number of IRQs available at this GIC: 96 Vmem_alloc::init() Cache
> config: ON Welcome to Fiasco.OC (arm)! L4/Fiasco.OC arm microkernel
> (C) 1998-2011 TU Dresden Rev: rUNKNOWN compiled with gcc 4.4.1 for
> Realview    [] Build: #3 Thu Jan 26 11:21:50 CET 2012
> 
> Calibrating timer loop... done. SIGMA0: Hello! KIP @ 2000 allocated
> 4KB for maintenance structures SIGMA0: Dump of all resource maps 
> RAM:------------------------ [0:0;fff] [0:5d000;8ffff] 
> [0:97000;97fff] [0:9f000;13ffff] [4:140000;175fff] 
> [0:176000;177fff] [4:178000;18efff] [0:18f000;100efff] 
> [4:100f000;100ffff] [0:1010000;1192fff] [4:1193000;18a6fff] 
> [0:18a7000;effffff] IOMEM:---------------------- 
> [0:10000000;ffffffff] MOE: Hello world MOE: found 237772 KByte free
> memory MOE: found RAM from 5d000 to f000000 MOE: allocated 239
> KByte for the page array @0x9f000 MOE: virtual user address space
> [0-bfffffff] MOE: rom name space cap -> [C:501000] BOOTFS:
> [1193000-11ad3c8] [C:503000] l4re BOOTFS: [11ae000-12036dc]
> [C:504000] ned BOOTFS: [1204000-1204189] [C:505000] l4lx.cfg 
> BOOTFS: [1205000-12ea124] [C:506000] io BOOTFS: [12eb000-12eb0bd]
> [C:507000] arm-rv.io BOOTFS: [12ec000-15a6524] [C:508000]
> vmlinuz.arm BOOTFS: [15a7000-18a7000] [C:509000] ramdisk-arm.rd 
> MOE: cmdline: moe rom/l4lx.cfg MOE: Starting: rom/ned rom/l4lx.cfg 
> MOE: loading 'rom/ned' Ned says: Hi World! Ned: loading file:
> 'rom/l4lx.cfg' l4linux | libio: Warning: Query of 'vbus' failed! 
> l4linux | PH  0 (t:        1) offs=00008000 vaddr=00100000
> vend=0041d8f4 l4linux |                     phys=00100000
> ephys=0041d8f4 l4linux |                     f_sz=0029e39c
> memsz=0031d8f4 flgs=rwx l4linux | PH  1 (t:        4) offs=002a6378
> vaddr=0039e378 vend=0039e39c l4linux |
> phys=0039e378 ephys=0039e39c l4linux |
> f_sz=00000024 memsz=00000024 flgs=r-x l4linux | PH  2 (t:
> 1685382481) offs=00000000 vaddr=00000000 vend=00000000 l4linux |
> phys=00000000 ephys=00000000 l4linux |
> f_sz=00000000 memsz=00000000 flgs=rwx l4linux | Starting binary at
> 0x11c2f0, argc=7 argv=0x80007f8c *argv=0xb1007ff0 
> argv0=rom/vmlinuz.arm l4linux | External resolver is at 0xa80006a0 
> l4linux | ======> L4Linux 2.6 starting... <======== l4linux | Linux
> version 3.0.0-l4 (fritsch at dev) (gcc version 4.4.1 (Sourcery G++
> Lite 2010q1-202) ) #2 Thu Jan 26 11:25:33 CET 2012 l4linux | Binary
> name: rom/vmlinuz.arm l4linux |    This is an AEABI build. l4linux
> | Linux kernel command line (6 args): mem=64M console=ttyLv0 
> l4x_rd=rom/ramdisk-arm.rd root=1:0 ramdisk_size=4000 init=/bin/sh 
> l4linux | CPU mapping (l:p)[1]: 0:0 l4linux | Image: 00100000 -
> 00500000 [4096 KiB]. l4linux | Areas: Text:     00100000 - 00382000
> [2568kB] (a bit longer) l4linux |        Data:     00382000 -
> 00399460 [93kB] l4linux |        Initdata: 00100000 - 0011b000
> [108kB] l4linux |        BSS:      0039e39c - 0041d8f4 [509kB] 
> l4linux | Device scan: l4linux | l4lx_thread_create: Created thread
> 413 (cpu0) (u:b3000400, v:b3000600, sp:00383ff0) l4linux | main
> thread will be 413 l4linux | l4x_register_pointer_section: addr =
> 00100000 size = 3268608 l4linux | section-with-init: virt: 0x100000
> to 0x41d8f3 [3190 KiB] l4linux | section-with-init: Phys:
> 0x00255000 to 0x005728f4, Size:  3266804 l4linux |
> l4x_linux_startup: thread 413. l4linux | Main thread running,
> waiting... l4linux | main thread: received startup message. l4linux
> | l4x_setup_memory: Forcing superpages for main memory l4linux |
> l4re_global_env: 0xb1007f0c l4linux | Main memory size: 64MB 
> l4linux |     Main memory: virt: 0x500000 to 0x44fffff [65536 KiB] 
> l4linux |     Main memory: Phys: 0x01900000 to 0x05900000, Size:
> 67108864 l4linux | Filling lower ptabs... l4linux | Done (480
> entries). l4linux | l4x_register_pointer_section: addr = 004ff000
> size = 4096 l4linux |             end: virt: 0x4ff000 to 0x4fffff
> [4 KiB] l4linux |             end: Phys: 0x00574000 to 0x00575000,
> Size:     4096 l4linux | l4x_rd_path: rom/ramdisk-arm.rd l4linux |
> Loading: rom/ramdisk-arm.rd l4linux | INITRD: Size of RAMdisk is
> 3072KiB l4linux | RAMdisk from 0c600000 to 0c900000 [3072KiB] 
> l4linux | l4lx_thread_create: Created thread 419 (timer.i0)
> (u:b3000800, v:00000000, sp:003b7ff4) Linux version 3.0.0-l4
> (fritsch at dev) (gcc version 4.4.1 (Sourcery G++ Lite 2010q1-202) )
> #2 Thu Jan 26 11:25:33 CET 2012 CPU: Fiasco [860f0001] revision 1
> (ARMvundefined/unknown), cr=00000000 CPU: VIPT nonaliasing data
> cache, VIPT nonaliasing instruction cache l4linux |
> timer_irq_thread: Starting timer IRQ thread. cpu_arm926_proc_init 
> Machine: L4 Memory policy: ECC disabled, Data cache writeback 
> arm926_flush_kern_cache_all() INITRD: 0c600000 - 0c900000 Built 1
> zonelists in Zone order, mobility grouping on.  Total pages: 17271 
> Kernel command line: mem=64M console=ttyLv0
> l4x_rd=rom/ramdisk-arm.rd root=1:0 ramdisk_size=4000 init=/bin/sh 
> PID hash table entries: 512 (order: -1, 2048 bytes) Dentry cache
> hash table entries: 16384 (order: 4, 65536 bytes) Inode-cache hash
> table entries: 8192 (order: 3, 32768 bytes) Memory: 0MB 68MB = 68MB
> total Memory: 64808k/64808k available, 4828k reserved, 0K highmem 
> Virtual kernel memory layout: vector  : 0xbffff000 - 0xc0000000   (
> 4 kB) fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB) DMA     :
> 0xffc00000 - 0xffe00000   (   2 MB) vmalloc : 0x04600000 -
> 0x0c600000   ( 128 MB) lowmem  : 0x00000000 - 0x04500000   (  69
> MB) modules : 0xff100000 - 0x00100000   (  16 MB) .init :
> 0x00100000 - 0x0011b000   ( 108 kB) .text : 0x0011c000 - 0x003819e8
> (2455 kB) .data : 0x00382000 - 0x00399460   (  94 kB) .bss :
> 0x0039e39c - 0x0041d8f4   ( 510 kB) NR_IRQS:220 l4lx_irq_init:
> l4lx_irq_max = 220 l4lx_irq_dev_startup_timer(0) Console: colour
> dummy device 80x30 console [ttyLv0] enabled Calibrating delay
> loop... 315.80 BogoMIPS (lpj=1579008) pid_max: default: 32768
> minimum: 301 Mount-cache hash table entries: 512 CPU: Testing write
> buffer coherency: ok NET: Registered protocol family 16 bio: create
> slab <bio-0> at 0 Failed to create "l4x" debugfs directory: 1 
> Switching to clocksource kip NET: Registered protocol family 2 IP
> route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP
> established hash table entries: 4096 (order: 3, 32768 bytes) TCP
> bind hash table entries: 4096 (order: 2, 16384 bytes) TCP: Hash
> tables configured (established 4096 bind 4096) TCP reno registered 
> UDP hash table entries: 256 (order: 0, 4096 bytes) UDP-Lite hash
> table entries: 256 (order: 0, 4096 bytes) NET: Registered protocol
> family 1 Trying to unpack rootfs image as initramfs... rootfs image
> is not initramfs (junk in compressed archive); looks like an 
> initrd INITRD: Freeing memory. NetWinder Floating Point Emulator
> V0.97 (double precision) msgmni has been set to 126 io scheduler
> noop registered io scheduler deadline registered io scheduler cfq
> registered (default) L4 serial driver ttyLv0 at MMIO 0x1 (irq =
> 210) is a L4 L4 shared mem serial driver l4cdds: No name given, not
> starting. brd: module loaded l4bdds: No name given, not starting. 
> mousedev: PS/2 mouse device common for all mice TCP cubic
> registered NET: Registered protocol family 17 RAMDISK: ext2
> filesystem found at block 0 RAMDISK: Loading 3072KiB [1 disk] into
> ram disk... done. VFS: Mounted root (ext2 filesystem) readonly on
> device 1:0. Freeing init memory: 108K /bin/sh: can't access tty;
> job control turned off #
> 
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