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porting "1497_usb_armory_demo" on imx53qsb
by 김진홍 03 Jul '16

03 Jul '16

Hi, I'm currently developing a simple trustzone device driver running in Normal World to communicate with Genode in Secure World. I'm using I.MX53 QSB. And I read following article to acheive my goal : https://sourceforge.net/p/genode/mailman/message/34341641/ After read the article, I tried to use "1497_usb_armory_demo". my procedure was as follows: 1. git clone genode and linux branch. (https://github.com/m-stein/genode/tree/1497_usb_armory_demo , https://github.com/m-stein/linux/tree/1497_usb_armory_demo) 2. cd <linux> 3. make ARCH=arm CROSS_COMPILE=${gcc-eabi} LOADADDR=0x80008000 usbarmory_defconfig 4. make ARCH=arm CROSS_COMPILE=${gcc-eabi} LOADADDR=0x80008000 uImage And uImage is ready 5. cd <genode> 6. ./tool/create_builddir hw_imx53_qsb_tz BUILD_DIR=mx53_tz 7. cd mx53_tz 8. mkdir bin 9. cp <linux>/arch/arm/boot/uImage ./bin/linux 10. cd mx53_tz and modify RUN_OPT in etc/build.conf to include “image/uboot"(e.g. RUN_OPT = --include boot_dir/hw --include image/uboot) 11. modify <genode>/repos/os/run/tz_vmm.run (only delete md5 check routine, "exec >& /dev/null wget -O linux.md5 $linux_uri.md5" and "exec md5sum -c linux.md5") 12. make run/tz_vmm And uImage can be found in mx53_tz/var/run/tz_vmm I booted system using sdcard and uboot. but, error is occured : => ext2load mmc 0:1 0xb0000000 uImage 7039880 bytes read in 410 ms (16.4 MiB/s) => bootm 0xb0000000 ## Booting kernel from Legacy Image at b0000000 ... Image Name: Image Type: ARM Linux Kernel Image (gzip compressed) Data Size: 7039816 Bytes = 6.7 MiB Load Address: 70010000 Entry Point: 70010000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK Starting kernel ... kernel initialized Genode 15.08 int main(): --- create local services --- int main(): --- start init --- int main(): transferred 243 MB to init int main(): --- init created, waiting for exit condition --- [init] Could not open ROM session for module "ld.lib.so" [init] parent provides [init] service "ROM" [init] service "RAM" [init] service "IRQ" [init] service "IO_MEM" [init] service "IO_PORT" [init] service "CAP" [init] service "PD" [init] service "RM" [init] service "CPU" [init] service "LOG" [init] service "SIGNAL" [init] service "VM" [init] child "tz_vmm" [init] RAM quota: 10203136 [init] ELF binary: tz_vmm [init] priority: 0 [init -> tz_vmm] Start virtual machine ... [init -> tz_vmm] Cpu state: [init -> tz_vmm] Register Virt Phys [init -> tz_vmm] --------------------------------- [init -> tz_vmm] r0 = 07000000 [00000000] [init -> tz_vmm] r1 = f801ff50 [00000000] [init -> tz_vmm] r2 = ffffffe4 [00000000] [init -> tz_vmm] r3 = 40002000 [00000000] [init -> tz_vmm] r4 = 00000000 [00000000] [init -> tz_vmm] r5 = 00000000 [00000000] [init -> tz_vmm] r6 = 000000ee [00000000] [init -> tz_vmm] r7 = 00000000 [00000000] [init -> tz_vmm] r8 = 00000000 [00000000] [init -> tz_vmm] r9 = 00000000 [00000000] [init -> tz_vmm] r10 = 00000000 [00000000] [init -> tz_vmm] r11 = 00000000 [00000000] [init -> tz_vmm] r12 = 00000000 [00000000] [init -> tz_vmm] sp = 00000000 [00000000] [init -> tz_vmm] lr = 00000000 [00000000] [init -> tz_vmm] ip = 0040dfe8 [00000000] [init -> tz_vmm] cpsr = 60000093 [init -> tz_vmm] sp_und = 00000000 [00000000] [init -> tz_vmm] lr_und = 00000000 [00000000] [init -> tz_vmm] spsr_und = 00000000 [00000000] [init -> tz_vmm] sp_svc = f801ff4c [00000000] [init -> tz_vmm] lr_svc = 0040bc97 [00000000] [init -> tz_vmm] spsr_svc = 00000093 [00000000] [init -> tz_vmm] sp_abt = 00000000 [00000000] [init -> tz_vmm] lr_abt = 00000000 [00000000] [init -> tz_vmm] spsr_abt = 00000000 [00000000] [init -> tz_vmm] sp_irq = 00000000 [00000000] [init -> tz_vmm] lr_irq = 00000000 [00000000] [init -> tz_vmm] spsr_irq = 00000000 [00000000] [init -> tz_vmm] sp_fiq = 00000000 [00000000] [init -> tz_vmm] lr_fiq = 00000000 [00000000] [init -> tz_vmm] spsr_fiq = 00000000 [00000000] [init -> tz_vmm] ttbr0 = 00000000 [init -> tz_vmm] ttbr1 = 00000000 [init -> tz_vmm] ttbrc = 00000000 [init -> tz_vmm] dfar = 07000000 [00000000] [init -> tz_vmm] exception = data_abort [init -> tz_vmm] Could not handle data-abort will exit! I don't know how to port "1497_usb_armory_demo" on my imx53 board. Is there any way for this? Is there any comment to implement this kind of example? I'm really looking forward to any responses. My Best Regards, Jinhong Kim

1 0

l4android hangs up
by john stokes 03 Jul '16

03 Jul '16

while running l4android it hangs up and the log of the run is given below please help me to resolve the above problem the l4android.run is attached with the post =========================================================== th exit value 1 Insufficient quota for transfer: init -> part_blk have 1540096, need 4206592 [init] not enough quota for a donation of 4206592 bytes [init -> l4android] Booting L4Linux ... [init] child "timer" announces service "Timer" [init] nic_bridge: invalid route to non-existing server "usb_block_drv" [init -> uart_drv] --- Fiasco(.OC) KDB UART driver started --- [init -> part_blk] resource_request: ram_quota=4206592 [init -> part_blk] virtual void Genode::Platform_env::release(): used before freeing emergency=417792 [init -> nic_bridge] Uncaught exception of type 'Genode::Parent::Service_denied' [init -> part_blk] virtual void Genode::Platform_env::release(): used after freeing emergency=401408 [init -> nic_bridge] Warning: abort called - thread: ep [init] child "uart_drv" announces service "Uart" [init] virtual void Genode::Child_policy::exit(int): child "nic_bridge" exited with exit value 1 [init] child "part_blk" requests resources: ram_quota=4206592 [init] Cannot respond to resource request - out of memory [init] child "uart_drv" announces service "Terminal" [init -> l4android] ======> L4Linux starting... <======== [init -> l4android] Linux version 3.5.0-l4-gcea6e7a (rishabh@...431...) (gcc version 4.9.2 (GCC) ) #53 SMP Sun Jul 3 11:06:58 IST 2016 [init -> l4android] Binary name: vmlinux [init -> l4android] Linux kernel command line (3 args): mem=768M console=ttyS0 l4x_rd=root-ginger.gz [init -> l4android] CPU mapping (l:p)[0]: Image: 00401000 - 00865000 [4496 KiB]. [init -> l4android] Areas: Text: 00401000 - 00795000 [3664kB] (a bit longer) [init -> l4android] Data: 00795000 - 007b8820 [142kB] [init -> l4android] Initdata: 007cc000 - 007f3000 [156kB] [init -> l4android] BSS: 007f4000 - 00855000 [388kB] [init -> l4android] l4util_cpu_capabilities: Not implemented yet! [init -> l4android] gs=43 fs=43 [init -> l4android] l4io_get_root_device: Not implemented yet! [init -> l4android] Device scan: [init -> l4android] l4io_iterate_devices: Not implemented yet! [init -> l4android] Device scan done. [init -> l4android] l4x_fiasco_gdt_entry_offset = 9 [init -> l4android] main thread will be 12 [init -> l4android] l4x_register_pointer_section: addr = 00400000 size = 4608000 [init -> l4android] section-with-init: virt: 400000 to 864fff [4500 KiB] [init -> l4android] Cannot determine physical address for dataspace Binary! [init -> l4android] error: failed to get physical address for 400000. [init -> l4android] Main thread running, waiting... [init -> l4android] thread=12000 cpu=0 [init -> l4android] WARNING: Unknown wrmsr: 0000008b at 668141 [init -> l4android] l4x_setup_memory: Forcing superpages for main memory [init -> l4android] l4re_global_env: 0 [init -> l4android] Main memory size: 768MB unmapping of managed dataspaces not yet supported [init -> l4android] Main memory: virt: 60000000 to 8fffffff [786432 KiB] [init -> l4android] Main memory: Phys: 0x00000000 to 0x30000000, Size: 805306368 [init -> l4android] Filling lower ptabs... [init -> l4android] Done (0 entries). [init -> l4android] l4x_register_pointer_section: addr = 00400000 size = 4608000 [init -> l4android] text: virt: 400000 to 864fff [4500 KiB] [init -> l4android] Cannot determine physical address for dataspace Binary! [init -> l4android] error: failed to get physical address for 400000. [init -> l4android] l4x_rd_path: root-ginger.gz [init -> l4android] Loading: root-ginger.gz [init -> l4android] INITRD: Size of RAMdisk is 596KiB [init -> l4android] RAMdisk from 000a3000 to 00138000 [596KiB] --------------------------------------------------------------------- CPU 0 [f0039463]: SERIAL_ESC [ uart_ep] jdb: R [l]ist/[a]ttach:

1 0

e1000 nic driver problem
by john stokes 01 Jul '16

01 Jul '16

i am trying to run l4linux on my x86 hardware but after commenting these lines l4linux boots fine. append_if $use_nic_driver config { <start name="nic_drv"> <resource name="RAM" quantum="3M"/> <provides><service name="Nic"/></provides> </start> } but i want the ethernet support my has no e1000 support it supports r8169 realtek driver i changed the e1000 from the l4linux.run to r8169 but it is showing errors . i have gone through many source codes related to nic_drv but i can't find where to change it can you please tell me how to add support for r8169 and the error is: Kernel: arch/l4/boot/Image is ready Building modules, stage 2. MODPOST 97 modules Program server/report_rom/report_rom Program core/spec/x86_32/core COMPILE version.o LINK core make[1]: `drivers/nic' is up to date. make[1]: `drivers/acpi' is up to date. make[1]: Leaving directory `/home/rishabh/genode-16.05/build/foc_x86_32' genode build completed Download initramfs ... using fiasco kernel /home/rishabh/genode-16.05/build/foc_x86_32/kernel/fiasco.oc/fiasco using sigma0/bootstrap at /home/rishabh/genode-16.05/build/foc_x86_32/l4 install bootloader creating ISO image... Warning: -follow-links does not always work correctly; be careful. Size of boot image is 4 sectors -> No emulation 79.64% done, estimate finish Thu Jun 30 19:27:48 2016 Total translation table size: 2048 Total rockridge attributes bytes: 3075 Total directory bytes: 10240 Path table size(bytes): 78 Max brk space used 22000 6283 extents written (12 MB) spawn qemu-system-i386 -no-kvm -m 160 -nographic -serial mon:stdio -smp 2,cores=2 -net nic,model=r8169 -net user -cdrom var/run/l4linux.iso qemu-system-i386: Unsupported NIC model: r8169 Aborting, received EOF Log step failed, retry. spawn qemu-system-i386 -no-kvm -m 160 -nographic -serial mon:stdio -smp 2,cores=2 -net nic,model=r8169 -net user -cdrom var/run/l4linux.iso -cdrom var/run/l4linux.iso qemu-system-i386: -cdrom var/run/l4linux.iso: drive with bus=1, unit=0 (index=2) exists Aborting, received EOF Log step failed, retry. spawn qemu-system-i386 -no-kvm -m 160 -nographic -serial mon:stdio -smp 2,cores=2 -net nic,model=r8169 -net user -cdrom var/run/l4linux.iso -cdrom var/run/l4linux.iso -cdrom var/run/l4linux.iso qemu-system-i386: -cdrom var/run/l4linux.iso: drive with bus=1, unit=0 (index=2) exists Aborting, received EOF Log step failed, retry. Boot process failed 3 times in series. I give up! make: *** [run/l4linux] Error 255

3 14

gdb_monitor not working on nova_x86_64
by Nobody III 01 Jul '16

01 Jul '16

I am planning on using gdb_monitor to debug components I write, but it doesn't seem to work. I have tried all the run scripts, and none of them succeed at attaching the debugger. I looked for any recent applicable commits in genodelabs/master, but none of them are more recent than the 16.05 release which my personal repo is currently based on. Here is the output from gdb_monitor.run: int main(): --- create local services --- int main(): --- start init --- int main(): transferred 86 MB to init [init] parent provides [init] service "ROM" [init] service "RAM" [init] service "IRQ" [init] service "IO_MEM" [init] service "IO_PORT" [init] service "PD" [init] service "RM" [init] service "CPU" [init] service "LOG" [init] child "timer" [init] RAM quota: 1863680 [init] ELF binary: timer [init] priority: 0 [init] provides service Timer [init] child "uart_drv" [init] RAM quota: 1863680 [init] ELF binary: uart_drv [init] priority: 0 [init] provides service Terminal [init] provides service Uart [init] child "gdb_monitor" [init] RAM quota: 3960832 [init] ELF binary: gdb_monitor [init] priority: 0 [init] child "timer" announces service "Timer" [init -> uart_drv] --- i8250 UART driver started --- [init] child "uart_drv" announces service "Uart" [init] child "uart_drv" announces service "Terminal" [init -> gdb_monitor] usinGDB monitor is up, starting GDB spawn /usr/local/genode-gcc/bin/genode-x86-gdb bin/ld.lib.so -n -ex target remote localhost:5555 -ex set interactive-mode off -ex b binary_ready_hook_for_gdb -ex c -ex delete 1 -ex file bin/test-gdb_monitor -ex b main -ex set solib-search-path bin -ex sharedlibrary -ex c -ex delete 2 2&>1 ----- test: breakpoint in 'main()' ----- g the pipe libc plugin [init -> gdb_monitor] int sigaction(int, const sigaction*, sigaction*): sigaction not implemented [init -> gdb_monitor] Process target created; pid = 1 [init -> gdb_monitor] unsupported ioctl (request=0x40047477) [init -> gdb_monitor] unsupported ioctl (request=0x80047476) [init -> uart_drv] Baudrate is not defined. Use default 115200 GNU gdb (GDB) 7.3.1 Copyright (C) 2011 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html > This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "--host=x86_64-unknown-linux-gnu --target=x86_64-pc-elf". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /home/kingtux/genode/build/nova_x86_64/bin/ld.lib.so...[init -> gdb_monitor] Remote debugging using /dev/terminal [init -> gdb_monitor] fcntl(): command 4 args 66 not supported - terminal [init -> gdb_monitor] fcntl(): command 6 args 4294967295 not supported - terminal int main(): --- init created, waiting for exit condition --- done. Don't know how to attach. Try "help target". GDB can't read core files on this machine. localhost:5555: Connection timed out. Breakpoint 1 at 0xafd10: file /home/kingtux/genode/repos/base/src/lib/ldso/debug.cc, line 21. The program is not being run. Load new symbol table from "/home/kingtux/genode/build/nova_x86_64/bin/test-gdb_monitor"? (y or n) [answered Y; input not from terminal] Reading symbols from /home/kingtux/genode/build/nova_x86_64/bin/test-gdb_monitor...done. Breakpoint 2 at 0x1001678: file /home/kingtux/genode/repos/ports/src/test/gdb_monitor/main.cc, line 93. The program is not being run. (gdb) *** Error: Breakpoint in main() did not trigger Makefile:261: recipe for target 'run/gdb_monitor' failed make: *** [run/gdb_monitor] Error 255

2 2

TRACE API: trace identification
by Joscha Benz 30 Jun '16

30 Jun '16

Hi, im currently using genode's TRACE API to trace communication paths between multiple threads. For that to work properly I need to be able to map all corresponding trace events to each other. For example a RPC_CALL event to the corresponding RPC_DISPATCH event. The problem is as follows. Since a trace event is logged _before_ the related action is executed, it is possible that a thread is preempted between those two actions. In that case I'm unable to do the mapping just using the information provided by the TRACE API or am I missing something? Best regards, Joscha

1 0

multiboot l4linux and ubuntu
by john stokes 30 Jun '16

30 Jun '16

after building the l4linux using make run/l4linux i got the iso file of l4linux now i want to create a grub2 entry for l4linux along with ubuntu how should i do it? i have followed methods given on other places they all are distro specific i have also seen nova hypervisor multiboot mailing list doubt it is of not much help is there any way to use create_grub2 tool? my l4linux file is at <build-dir>/foc_x86_32/var/run/l4linux/boot <build-dir>/foc_x86_32/var/run/l4linux/genode <build-dir>/foc_x86_32/var/run/l4linux/fiasco <build-dir>/foc_x86_32/var/run/l4linux/boot/grub <build-dir>/foc_x86_32/var/run/l4linux/boot/isolinux <build-dir>/foc_x86_32/var/run/l4linux/boot/bender <build-dir>/foc_x86_32/var/run/l4linux/boot/grub/menu.lst contains following things timeout 0 default 0 title Genode on Fiasco.OC kernel /boot/bender module /fiasco/bootstrap module /fiasco/fiasco -serial_esc module /fiasco/sigma0 module /genode/core module /genode/config module /genode/init module /genode/timer module /genode/kdb_uart_drv module /genode/l4linux module /genode/initrd.gz module /genode/ps2_drv module /genode/fb_drv module /genode/nic_drv module /genode/platform_drv module /genode/acpi_drv module /genode/report_rom vbeset 0x117 506070

2 2

allocator out of memory error during creation of File_system::Connection
by Nobody III 30 Jun '16

30 Jun '16

I have been working on my fs_filter (vfs-like) component, and it compiles, but fails to successfully create a File_system::Connection. Even with a ram quota of 1G, I get the following error: Uncaught exception of type 'Genode::Allocator::Out_of_memory' What am I doing wrong? I have tried multiple different allocator configurations (e.g. Allocator_avl(sliced_heap), Allocator_avl(Genode::env()->heap()), Allocator_avl(0)), but nothing fixes or changes the error.

1 0

File_system signals
by Nobody III 30 Jun '16

30 Jun '16

In my fs_filter component (much like the vfs server), I am trying to allow multiple clients fast, non-blocking access to multiple filesystems. To do this without several threads, my component needs to know when each filesystem server unblocks so it can send more packets. Unfortunately, the File_system::Client interface (which File_system::Connection inherits) doesn't provide a way to receive signals when the server acknowledges packets or is ready for more packets, given that it only provides a Session:Tx::Source object for accessing the packet stream. The Session::Tx::Source interface provide the methods sigh_ack_avail() and sigh_ready_to_submit(), which allow a cilent to get the signal handlers currently in use, but doesn't allow registering new signal handlers. I added a workaround that exposes the Packet_stream_tx::Client object to the client, but it would be good to have a better way to register these signal handlers. Is there currently a way to do this, or does this require a modification to the API, like what I did?

2 2

error related to block device while running make run/l4linux
by john stokes 29 Jun '16

29 Jun '16

after doing make menuconfig and selecting block device support for l4linux so that when i boot it on real hardware the root file system can be mounted easily.but i am getting this infinite loop is there any solution for bloc device support ? [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64 [init -> l4linux] Invalid IO-Port access at pc = 005a9650 port=0x64

2 2

16.05 custom kernel call fails to get session capability.
by Bob Stewart 28 Jun '16

28 Jun '16

Hi, I'm moving from release 15.11 to 16.05 on base-hw and am having a "service denied" issue when trying to get a connection to a custom service I created to handle pin muxing on TI Sitara processors. In this family of processors, access to a "Control Module" is need to enable subsystems, set up clock frequencies, and set the mode for gpio pins which have multiple functions dependent upon the mode they are set to. Write access to the Control Module is only allowed in a privileged mode so I had to create custom kernel calls to access the appropriate SoC registers. I did this in release 14.05 by adding the code for unrestricted kernel calls to base-hw and it has been working without issue through various releases until I stared to move to 16.05. The log output I'm getting is: Starting kernel ... kernel initialized Genode 16.05 <local changes> int main(): --- create local services --- int main(): --- start init --- int main(): transferred 503 MB to init int main(): --- init created, waiting for exit condition --- [init] Could not open ROM session for module "ld.lib.so" [init -> ctrl_module] ---437x Control Module Server : Setting Pin Muxes--- [init -> ctrl_module] pin mux capability [init -> timer] Maximum timeout 1717986000 us [init -> timer] --- am437x timer driver --- [init -> 437x_platform_client] --- 437x platform being configured -- [init -> ctrl_module] Uncaught exception of type 'Genode::Parent::Service_denied' [init -> ctrl_module] Warning: abort called - thread: ep [init] virtual void Genode::Child_policy::exit(int): child "ctrl_module" exited w ith exit value 1 [init -> 437x_platform_client] Enabled dmtimer 3 freq = 1 [init -> 437x_platform_client] Enabled dmtimer 4 freq = 1 ....(other messages unrelated to the issue follow) The uncaught exception is being generated in my "pinmux_session" connection code when a capability for a session is requested, as shown the following in the following code snippet from pinmux_connection.h namespace Genode { struct Pinmux_connection; } struct Genode::Pinmux_connection : Connection<Pinmux_session>, Pinmux_session_client { /** * Issue session request * * \noapi */ Capability<Pinmux_session> _session(Parent &parent, char const *label, long priority, unsigned long affinity) { Genode::printf("pin mux capability\n"); return***/session(parent,/**/ /**/ "priority=0x%lx, affinity=0x%lx, ram_quota=16K, label=\"%s\"",/**/ /**/ priority, affinity, label); (exception occurs here)/* } /** * Constructor * * \param label initial session label * \param priority designated priority of the Pinmux * \param affinity which physical CPU the VM should run on top of */ Pinmux_connection(Genode::Env &env, const char *label = "", long priority = Cpu_session::DEFAULT_PRIORITY, unsigned long affinity = 0) : Connection<Pinmux_session>( env, _session(env.parent(), label, priority, affinity)), Pinmux_session_client(cap()) { } /** * Constructor * * \noapi * \deprecated Use the constructor with 'Env &' as first * argument instead */ Pinmux_connection(const char *label = "", long priority = Cpu_session::DEFAULT_PRIORITY, unsigned long affinity = 0) : Connection<Pinmux_session>(_session(*env()->parent(), label, priority, affinity)), Pinmux_session_client(cap()) { Genode::printf("ctrl mod connection\n");} }; This code differs from the 15.11 code in that the request for a session now requires a "parent" argument in 16.05. Looking at similar kernel call codes like the vm calls, my changes to my custom calls for 16.05 appear to be correct. I can see in the kernel code (parent.h) where the exception is occurring but I have no clue as to why it occurs. Any hints would be greatly appreciated. Thanks, Bob Stewart

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