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2014-10-01ipc: provide the protected payload in ipc_kmsg_copyout_headerJustus Winter
* ipc/ipc_kmsg.c (ipc_kmsg_copyout_header): If a protected payload is set for the destination port, provide it in msgh_protected_payload. * ipc/mach_msg.c (mach_msg_trap): Likewise in the fast paths. * doc/mach.texi (Message Receive): Document message semantics with protected payloads.
2014-10-01include: define MACH_MSG_TYPE_PROTECTED_PAYLOADJustus Winter
* include/mach/message.h: Define MACH_MSG_TYPE_PROTECTED_PAYLOAD. (MACH_MSG_TYPE_LAST): Adjust accordingly. * doc/mach.texi (Message Format): Document MACH_MSG_TYPE_PROTECTED_PAYLOAD.
2014-10-01include: add msgh_protected_payload to mach_msg_header_tJustus Winter
* include/mach/message.h (mach_msg_header_t): Add msgh_protected_payload as a union with msgh_local_port. * doc/mach.texi (Message Format): Document msgh_protected_payload.
2014-10-01ipc: implement mach_port_{set,clear}_protected_payloadJustus Winter
* include/mach/mach_port.defs: Add mach_port_{set,clear}_protected_payload. * ipc/mach_port.c: Implement mach_port_{set,clear}_protected_payload. * doc/mach.texi (Receive Rights): Document mach_port_{set,clear}_protected_payload.
2014-10-01ipc: add protected payloadJustus Winter
Add a field ip_protected_payload and a flag ip_has_protected_payload to struct ipc_port. Clear the protected payload when a receive port is moved from one ipc space to another. This is done to retain the old behavior of mach_msg, so that a port name is sent in the msgh_local_port field. If the new owner of that receive right wishes to use the protected payload mechanism, it has to be explicitly set again. * ipc/ipc_port.h (struct ipc_port): Add field ip_protected_payload. (ipc_port_set_protected_payload): Add function declaration. (ipc_port_clear_protected_payload): Likewise. (ipc_port_flag_protected_payload): Add accessor for the protected payload flag. (ipc_port_flag_protected_payload_set): Likewise. (ipc_port_flag_protected_payload_clear): Likewise. * ipc/ipc_port.c (ipc_port_init): Initialize protected payload. (ipc_port_print): Print protected_payload. (ipc_port_set_protected_payload): New function. (ipc_port_clear_protected_payload): Likewise. (ipc_port_destroy): Clear the payload when moving a receive port. * ipc/ipc_right.c (ipc_right_copyin): Likewise. (ipc_right_copyout): Likewise. * ipc/ipc_object.c (ipc_object_copyin_from_kernel): Likewise. * ipc/ipc_object.h (IO_BITS_PROTECTED_PAYLOAD): New bitmask. (IO_BITS_OTYPE): Adjust accordingly.
2014-09-30ipc: use fast modulo operation in local hash tableJustus Winter
* ipc/ipc_table.h: Document that table sizes must be powers of two. * ipc/ipc_hash.c (IH_LOCAL_HASH): Use fast modulo operation.
2014-09-30kern: silence compiler warning about uninitialized variableJustus Winter
* kern/slab.c (kmem_cache_compute_sizes): Initialize optimal_size and assert that a size is selected.
2014-09-30kern: fix type of recompute_prioritiesJustus Winter
* kern/sched_prim.c (recompute_priorities): Fix type. * kern/sched_prim.h (recompute_priorities): Likewise.
2014-09-26kern: create send rights as they are inserted at bootstrap timeJustus Winter
Previously, it was impossible to hand e.g. the master device port to more than one bootstrap task. Fix this by creating the send right as it is inserted into the target task. * kern/bootstrap.c (bootstrap_create): Do not create the send rights here... (boot_script_insert_right): ... but here.
2014-09-25Update NEWS fileJustus Winter
2014-09-17ddb: add support for ELF symbol tablesJustus Winter
* ddb/db_elf.c: New file. * ddb/db_elf.h: Likewise. * Makefrag.am (libkernel_a_SOURCES): Add db_elf.{c,h}. * ddb/db_sym.c (dummy_db_sym_init): New stub db_sym_init function. (db_sym_switch): Add ELF functions. * ddb/db_sym.h (SYMTAB_ELF): New macro. (elf_db_sym_init): New declaration. * i386/i386at/model_dep.c (c_boot_entry): Get ELF section header information from the multiboot structure, and call elf_db_sym_init.
2014-09-17ddb: add `show all tasks' commandJustus Winter
* ddb/db_command.c (db_show_all_cmds): Add `tasks'. * ddb/db_print.c (db_show_all_tasks): New function. * ddb/db_print.h (db_show_all_tasks): New prototype.
2014-09-17Report DR6 to userlandSamuel Thibault
* i386/i386/trap.c (user_trap): On T_DEBUG, record the content of dr6 in PCB, and clear it.
2014-09-06Make vm_map really ignore `address' when `anywhere' is trueSamuel Thibault
As vm_allocate does. * vm/vm_user.c (vm_map): When `anywhere' is true, set `address' to the minimum address of the `target_map'.
2014-09-01Fix printf warningPietro Braione
linux/src/drivers/net/sundance.c (start_tx): Fix format string according to parameter.
2014-08-30Tune pageout parametersSamuel Thibault
This targets having always at least 8% free memory instead of just 1%. This has shown improving buildd stability a lot. Also increase the reserved amount to nowadays standards. * vm/vm_pageout.c (VM_PAGE_FREE_TARGET): Increase to 10%. (VM_PAGE_FREE_MIN): Increase to 8%. (VM_PAGE_FREE_RESERVED): Increase to 500 pages. (VM_PAGEOUT_RESERVED_INTERNAL): Increase to 150 pages. (VM_PAGEOUT_RESERVED_REALLY): Increase to 100 pages.
2014-08-30Increate the pageout thread prioritySamuel Thibault
* vm/vm_pageout.c (vm_pageout): Set the priority to 0.
2014-08-30Bump NR_GRANT_PAGESSamuel Thibault
This has shown needed on buildds with several disks and network interfaces. * xen/grant.c (NR_GRANT_PAGES): Increase from 4 to 8.
2014-08-22Fix computationSamuel Thibault
* i386/i386at/com.c (comintr): Fix computation of '@'.
2014-08-22Even less magic-looking control valueNeal H. Walfield
* i386/i386at/com.c (comintr): Use 'A'-1 instead of '@'.
2014-08-22Support invoking the debugger over the serial consoleJustus Winter
* i386/i386at/com.c (comintr): Invoke the debugger if ctrl-alt-d is pressed. * i386/i386at/com.h (kdb_kintr): Add declaration.
2014-07-25Drop debugging printsSamuel Thibault
* i386/i386at/acpi.c (grub_machine_acpi_get_rsdpv2): Drop debugging prints.
2014-07-06Do not unmap page 0 when not neededSamuel Thibault
Since we need it to access some BIOS information, e.g. at ACPI shutdown. When the kernel VM is not starting at 0, there is already nothing mapped there in user tasks, anyway. * i386/i386at/model_dep.c (machine_init) [VM_MIN_KERNEL_ADDRESS != 0]: Do not call pmap_unmap_page_zero. * i386/intel/pmap.c (pmap_unmap_page_zero): Warn that unmapping page zero may break some BIOS functions.
2014-07-06Document that io_map_cached leaks memorySamuel Thibault
2014-07-06Merge branch 'master' of git.savannah.gnu.org:/srv/git/hurd/gnumachSamuel Thibault
2014-07-06i386: use ACPI to power off the machineJustus Winter
This is a mostly verbatim copy of acpihalt.c from GRUB2 with a little bit of glue code. * i386/Makefrag.am (libkernel_a_SOURCES): Add the new files. * i386/grub/acpi.h: Verbatim copy from GRUB2. * i386/grub/compiler.h: Likewise. * i386/grub/cpu/io.h: Likewise. * i386/grub/cpu/time.h: Likewise. * i386/grub/cpu/types.h: Likewise. * i386/grub/err.h: Likewise. * i386/grub/misc.h: Likewise. * i386/grub/mm.h: Likewise. * i386/grub/symbol.h: Likewise. * i386/grub/time.h: Likewise. * i386/grub/types.h: Likewise. * i386/i386at/acpi.c: Likewise. * i386/i386at/acpihalt.c: Likewise. (grub_acpi_halt): Map physical addresses. * i386/i386at/acpihalt.h: New file. * i386/grub/glue.h: Some glue macros. * i386/grub/i18n.h: Stub out i18n. * i386/i386at/grub_glue.c: Some glue code. * i386/i386at/model_dep.c (halt_all_cpus): Use grub_acpi_halt.
2014-07-06i386: add io_map_cachedJustus Winter
io_map_cached is like io_map, but reuses the old mapping if it is applicable. * i386/i386/io_map.c: Add io_map_cached.
2014-06-11doc: explain the floating point flag in kdb outputJustus Winter
* doc/mach.texi (Kernel Debugger Commands): Explain the floating point flag.
2014-06-11i386: remap some keysJustus Winter
As a convenience for the nice people using our debugger, remap some keys to the readline-like shortcuts supported by dde. * i386/i386at/kd.c (kdcnmaygetc): Remap some keys.
2014-06-11i386: reformat the key mapJustus Winter
* i386/i386at/kd.c (key_map): Remove superfluous newlines so that every entry fits into one line. This way line numbers can be used as an index into the map.
2014-06-11ddb: use db_thread_stat to format the flagsJustus Winter
* ddb/db_print.c (db_print_thread): Use db_thread_stat to format the flags.
2014-06-11ddb: print task names if availableJustus Winter
* ddb/db_print.c (db_print_task): Print task name if available. * i386/i386/db_interface.c (db_task_name): Likewise. * i386/i386/db_machdep.h (DB_GNUMACH_TASK_NAME): Remove unused definition.
2014-06-11kern: set the name of the kernel task to 'gnumach'Justus Winter
* kern/taks.c (task_init): Set the name of the kernel task to 'gnumach'.
2014-06-11device: fix net_rcv_msg-messagesJustus Winter
Previously, all net_rcv_msg-messages sent by net_deliver were malformed. It never was a problem in practice, since the messages are not complex and thus the kernel does not try to parse the message. struct net_rcv_msg contains an additional field of type boolean_t. This field has no associated type descriptor, so it must not be included in the message. * device/net_io.c (net_deliver): Account for the extra field in the msgh_size calculation.
2014-05-27Add missing memory clobberSamuel Thibault
* i386/i386/xen.h (mb, rmb, wmb): Add memory clobber.
2014-05-25Rewrite old-style #endif FOO directivesJustus Winter
* i386/include/mach/i386/cthreads.h: Rewrite old-style #endif FOO directives. * include/device/tape_status.h: Likewise. * include/mach/alert.h: Likewise. * include/mach/boot.h: Likewise. * include/mach/default_pager_types.defs: Likewise. * include/mach/default_pager_types.h: Likewise. * include/mach/multiboot.h: Likewise. * include/mach/notify.defs: Likewise. * include/mach_debug/pc_info.h: Likewise. * kern/act.h: Likewise. * kern/refcount.h: Likewise. * kern/shuttle.h: Likewise.
2014-05-25include: fix the embedded type definitions in memory_object.defsJustus Winter
In order to use MIG translation functions to lookup memory objects, preprocessor macros have been introduced into the definition of memory_object_t in 50cc5152. The procedure definitions contain inlined type definitions in order to change the type of the argument in question (i.e. to make it polymorphic). The inline definitions however lack the destructor function, leading to reference leaks when a reference is acquired in the intran function. * include/mach/memory_object.defs: Add the destructor functions to the inlined type definitions.
2014-05-03ddb: add "halt" commandJustus Winter
* ddb/db_command.c (db_command_table): Add "halt" command. * i386/i386/db_interface.h (db_halt_cpu): New declaration. * i386/i386at/model_dep.c (db_halt_cpu): New function.
2014-04-30vm: make struct vm_map fit into a cache lineJustus Winter
Currently, the size of struct vm_map is 68 bytes. By using a bit field for the boolean flags, it can be made fit into a cache line. * vm/vm_map.h (struct vm_map): Use a bit field for the boolean flags wait_for_space and wiring_required.
2014-04-30i386: fix MACHINE_SERVER_HEADERJustus Winter
Commit b6dab094 introduced a way to include the MIG-generated server files for the machine specific interface in ipc_kobject.c. This broke out-of-tree builds. Here, 'machine' is a symlink to '../i386/i386', it points into the source tree. The MIG-generated files however are put in the build tree in i386/i386. * i386/i386/machine_routines.h (MACHINE_SERVER_HEADER): Fix path.
2014-04-30kern: include the MIG-generated server headers for MACHINE_SERVERJustus Winter
GNU MIG recently gained support for emitting x_server_routine declarations in the generated server header file. Using this declaration, the x_server_routine functions can be inlined into the ipc_kobject_server function. * kern/ipc_kobject.c: Include the MIG-generated server headers for the machine-dependent interfaces. (ipc_kobject_server): Drop the simple declaration of MACHINE_SERVER_ROUTINE. * i386/i386/machine_routines.h (MACHINE_SERVER_HEADER): New definition.
2014-04-30include: do not guard the host_slab_info RPC with MACH_VM_DEBUGJustus Winter
Previously, the definition of the host_slab_info RPC was guarded with MACH_VM_DEBUG, even though it is not at all concerned with the VM subsystem. Furthermore, there was no "skip" directive for host_slab_info. The function host_slab_info is guarded with MACH_DEBUG. The server for the RPCs in mach_debug.defs is only used if MACH_DEBUG is defined. There is no need to guard host_slab_info. * include/mach_debug/mach_debug.defs (host_slab_info): Unconditionally include the RPC.
2014-04-30Install the mach_debug header filesJustus Winter
The task_set_name RPC introduced in 877a319c changed include/mach/gnumach.defs to include mach_debug/mach_debug_types.defs. Previously though, the debug headers were not installed. * Makefrag.am: Install the mach_debug header files.
2014-04-30doc: fix the number of prioritiesJustus Winter
The number of priorities has been changed from 32 to 50 in 6a234201081156e6d5742e7eeabb68418b518fad. * doc/mach.texi: Update accordingly.
2014-04-25Make sure mig is availableSamuel Thibault
* configure.ac (MIG): Error out if MiG was not found.
2014-04-13kern: set the name of tasks created during the bootstrapJustus Winter
* kern/bootstrap.c (boot_script_task_create): Set the name of newly created tasks.
2014-04-10include: fix the definition of device_openJustus Winter
Previously, every userspace server implementing the device protocol filtered the device definitions to replace the device_t type with mach_port_send_t to make the device argument of device_open polymorphic. Rather than doing that, which makes it impossible to use translation functions, fix the definition of device_open. * include/device/device.defs (device_open): Redefine the device argument to make it polymorphic unless a outran function is specified.
2014-04-08include: make the device_t types translation functions mutableJustus Winter
Make the intran, outtran and destructor functions mutable using preprocessor macros. Make it possible to inject imports using the DEVICE_IMPORTS macro. This way, userspace servers can provide their own translation functions. * include/device/device_types.defs: Honor DEVICE_IMPORTS. (device_t): Make the translation mutable using preprocessor macros.
2014-04-05include: make the notify_port_t types translation functions mutableJustus Winter
Make the intran, outtran and destructor functions mutable using preprocessor macros. Make it possible to inject imports using the NOTIFY_IMPORTS macro. This way, userspace servers can provide their own translation functions. * include/mach/notify.defs: Honor NOTIFY_IMPORTS. (notify_port_t): Make the translation mutable using preprocessor macros.
2014-04-04Convert from K&R to ANSIMarin Ramesa
Convert from K&R style function definitions to ANSI style function definitions. * ddb/db_access.c: Convert function prototypes from K&R to ANSI. * ddb/db_aout.c: Likewise. * ddb/db_break.c: Likewise. * ddb/db_command.c: Likewise. * ddb/db_cond.c: Likewise. * ddb/db_examine.c: Likewise. * ddb/db_expr.c: Likewise. * ddb/db_ext_symtab.c: Likewise. * ddb/db_input.c: Likewise. * ddb/db_lex.c: Likewise. * ddb/db_macro.c: Likewise. * ddb/db_mp.c: Likewise. * ddb/db_output.c: Likewise. * ddb/db_print.c: Likewise. * ddb/db_run.c: Likewise. * ddb/db_sym.c: Likewise. * ddb/db_task_thread.c: Likewise. * ddb/db_trap.c: Likewise. * ddb/db_variables.c: Likewise. * ddb/db_watch.c: Likewise. * device/blkio.c: Likewise. * device/chario.c: Likewise. * device/dev_lookup.c: Likewise. * device/dev_name.c: Likewise. * device/dev_pager.c: Likewise. * device/ds_routines.c: Likewise. * device/net_io.c: Likewise. * device/subrs.c: Likewise. * i386/i386/db_interface.c: Likewise. * i386/i386/fpu.c: Likewise. * i386/i386/io_map.c: Likewise. * i386/i386/loose_ends.c: Likewise. * i386/i386/mp_desc.c: Likewise. * i386/i386/pcb.c: Likewise. * i386/i386/phys.c: Likewise. * i386/i386/trap.c: Likewise. * i386/i386/user_ldt.c: Likewise. * i386/i386at/com.c: Likewise. * i386/i386at/kd.c: Likewise. * i386/i386at/kd_event.c: Likewise. * i386/i386at/kd_mouse.c: Likewise. * i386/i386at/kd_queue.c: Likewise. * i386/i386at/lpr.c: Likewise. * i386/i386at/model_dep.c: Likewise. * i386/i386at/rtc.c: Likewise. * i386/intel/pmap.c: Likewise. * i386/intel/read_fault.c: Likewise. * ipc/ipc_entry.c: Likewise. * ipc/ipc_hash.c: Likewise. * ipc/ipc_kmsg.c: Likewise. * ipc/ipc_marequest.c: Likewise. * ipc/ipc_mqueue.c: Likewise. * ipc/ipc_notify.c: Likewise. * ipc/ipc_port.c: Likewise. * ipc/ipc_right.c: Likewise. * ipc/mach_debug.c: Likewise. * ipc/mach_msg.c: Likewise. * ipc/mach_port.c: Likewise. * ipc/mach_rpc.c: Likewise. * kern/act.c: Likewise. * kern/exception.c: Likewise. * kern/ipc_mig.c: Likewise. * kern/ipc_tt.c: Likewise. * kern/lock_mon.c: Likewise. * kern/mach_clock.c: Likewise. * kern/machine.c: Likewise. * kern/printf.c: Likewise. * kern/priority.c: Likewise. * kern/startup.c: Likewise. * kern/syscall_emulation.c: Likewise. * kern/syscall_subr.c: Likewise. * kern/thread_swap.c: Likewise. * kern/time_stamp.c: Likewise. * kern/timer.c: Likewise. * kern/xpr.c: Likewise. * vm/memory_object.c: Likewise. * vm/vm_debug.c: Likewise. * vm/vm_external.c: Likewise. * vm/vm_fault.c: Likewise. * vm/vm_kern.c: Likewise. * vm/vm_map.c: Likewise. * vm/vm_pageout.c: Likewise. * vm/vm_user.c: Likewise.
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