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2012-12-23Merge branch 'master' of git.savannah.gnu.org:/srv/git/hurd/gnumachSamuel Thibault
2012-12-23Make thread_suspend wait for !TH_UNINTSamuel Thibault
0a55db5 made thread_suspend return KERN_FAILURE when the target thread is in TH_UNINT state. That however is not currently handled by libc, and it's more useful to just wait for the thread to get interruptible. * kern/sched_prim.c (thread_invoke): Wake NEW_THREAD->STATE for thread_suspend. * kern/thread.c (thread_suspend): Wait on NEW_THREAD->STATE as long as THREAD has TH_UNINT.
2012-12-05Fix kernel task creation timeRichard Braun
The mapable_time_init function is called before machine_init, but the latter sets the system boot time. Fix their calling order. * kern/startup.c (setup_main): Call machine_init before mapable_time_init.
2012-12-04Strongly reduce risks of name capture in rbtree macrosRichard Braun
* kern/rbtree.h (rbtree_lookup): Prefix local variable names with three underscores. (rbtree_lookup_nearest): Likewise. (rbtree_insert): Likewise. (rbtree_lookup_slot): Likewise. (rbtree_insert_slot): Rewrite as an inline function.
2012-09-23Fix gnumach_server_routine prototypeSamuel Thibault
* kern/ipc_kobject.c (ipc_kobject_server): Set gnumach_server_routine prototype to mig_routine_t.
2012-09-23Add missing file for page statisticsRichard Braun
* kern/gnumach.srv: New file.
2012-09-23Provide basic page cache statisticsRichard Braun
* Makefrag.am (EXTRA_DIST): Add kern/gnumach.srv. (include_mach_HEADERS): Add include/mach/gnumach.defs and include/mach/vm_cache_statistics.h (nodist_libkernel_a_SOURCES): Add kern/gnumach.server.defs.c, kern/gnumach.server.h, kern/gnumach.server.c, kern/gnumach.server.msgids, kern/gnumach.server.defs. * include/mach/mach_types.h: Add #include <mach/vm_cache_statistics.h>. * kern/ipc_kobject.c (ipc_kobject_server): Declare and call gnumach_server_routine. * vm/vm_object.c (vm_object_cached_pages): New variable. (vm_object_cached_pages_lock_data): Likewise. (vm_object_deallocate): Update number of cached pages. (vm_object_lookup): Likewise. (vm_object_lookup_name): Likewise. (vm_object_destroy): Likewise. (vm_object_enter): Likewise. * vm/vm_object.h (ref_count): Declare as int. (resident_page_count): Likewise. (vm_object_cached_count): Add extern declaration. (vm_object_cached_pages): Likewise. (vm_object_cached_pages_lock_data): Likewise. (vm_object_cached_pages_update): New macro. * vm/vm_resident.c (vm_page_insert): Assert resident page count doesn't overflow, update number of cached pages as appropriate. (vm_page_replace): Likewise. (vm_page_remove): Update number of cached pages as appropriate. * vm/vm_user.c: Add #include <mach/vm_cache_statistics.h>. (vm_cache_statistics): New function. * vm/vm_user.h: Add #include <mach/mach_types.h>. (vm_cache_statistics): New declaration. * include/mach/gnumach.defs: New file.
2012-07-08Fix slab collection timingRichard Braun
The slab garbage collector uses sched_tick as its time reference, which is increased every seconds, while the interval is expressed in clock ticks. Use the proper time reference instead. * kern/slab.c (kmem_gc_last_tick): Declare as unsigned long. (slab_collect): Use elapsed_ticks instead of sched_tick.
2012-07-07Increase the slab collection intervalRichard Braun
* kern/slab.c (KMEM_GC_INTERVAL): Increase to 5 seconds.
2012-07-07Allocate kernel thread stacks out of kmem_mapRichard Braun
The kernel submaps eat most of the available kernel space. Using the main kernel map for thread stacks sometimes lead to exhaustion when many threads are created. Use kmem_map instead to increase this limit. * kern/thread.c (stack_alloc): Use kmem_map instead of kernel_map for stack allocation. (stack_collect): Likewise for release.
2012-07-07Merge kalloc_map into kmem_mapRichard Braun
* ipc/ipc_table.c: Add #include <kern/slab.h>. (ipc_table_alloc): Use kmem_map instead of kalloc_map when allocating a table. (ipc_table_realloc): Likewise for reallocation. (ipc_table_free): Likewise for release. * kern/kalloc.h (kalloc_map): Remove declaration. * kern/slab.c (KMEM_MAP_SIZE): Increase to 128 MiB. (KALLOC_MAP_SIZE): Remove macro. (kalloc_map_store): Remove variable. (kalloc_map): Likewise. (kalloc_pagealloc): Use kmem_map instead of kalloc_map for general purpose allocations. (kalloc_pagefree): Likewise. (kalloc_init): Remove the creation of kalloc_map.
2012-04-22Update comments.Richard Braun
Literature about red-black trees vary concerning the cases numbering, and the implementation doesn't make all of them clearly appear. Remove cases numbering references to avoid confusion.
2012-04-22Fix copyright assignmentRichard Braun
Maksym and I have assigned copyright to the Free Software Foundation. In addition, restore the original upstream copyrights for correctness. * kern/list.h: Fix copyright assignment. * kern/rbtree.c: Likewise. * kern/rbtree.h: Likewise. * kern/rbtree_i.h: Likewise. * kern/slab.c: Likewise. * kern/slab.h: Likewise.
2012-04-06Fix integer typeSamuel Thibault
* kern/thread.c (host_stack_usage): Set `total' type to natural_t.
2012-04-06Do not take address of va_list variableSamuel Thibault
This breaks on x86_64, where it is an array and thus gets bogus results. * ddb/db_output.c (db_printf, kdbprintf): Pass copy of va_list variable instead of its address. * kern/debug.c (panic, log): Likewise. * kern/printf.c (vprintf, iprintf, sprintf, vsnprintf): Likewise. (_doprnt): Take va_list instead of va_list *, fix usage and comment accordingly. * kern/printf.h (_doprnt): Take va_list instead of va_list *.
2012-03-20Use long typesSamuel Thibault
* ddb/db_examine.c (db_xcdump): Do not cast addr before passing to db_read_bytes. * ddb/db_macro.c (db_arg_variable): Return long. * ddb/db_macro.h (db_arg_variable): Likewise. * ddb/db_sym.c (db_maxoff): Set type to unsigned long. * ddb/db_task_thread.c (db_set_default_thread, db_get_task_thread): Return long. * ddb/db_variables.h (db_variable): Make fcn function field to return long. (FCN_NULL): Make function type return long. * i386/i386/db_interface.c (int_regs): Set field sizes to long. * i386/i386/db_machdep.h (db_expr_t): Set type to long. * i386/i386/db_trace.c (db_i386_reg_value): Return long. Use long types. (i386_frame, i386_kregs, interrupt_frame, db_nextframe): Set field sizes to long. (db_regs, i386_kregs): Use long * pointers. (db_lookup_i386_kreg): Return long *. (db_numargs, db_nextframe, db_stack_trace_cmd, db_i386_stack_trace): Use long types. * i386/i386/debug_i386.c (dump_ss): Fix format. * i386/i386/ktss.c (ktss_init): Use long type. * i386/i386/pcb.c (set_user_regs): Likewise. * i386/i386/thread.h (i386_saved_state, v86_segs, i386_kernel_state, i386_interrupt_state): Set field sizes to long. * i386/i386/trap.c (kernel_trap, user_trap): Fix formats. * kern/ast.h (ast_t): Set type to long. * kern/boot_script.c (create_task, resume_task, prompt_resume_task, boot_script_set_variable): Use long types. * kern/boot_script.h (boot_script_set_variable): Use long type. * kern/bootstrap.c (bootstrap_create): Pass long type. * kern/lock.c (simple_lock, simple_lock_try): Use long type. * linux/dev/kernel/softirq.c (linux_soft_intr): Fix format.
2012-03-20Use compiler defined __i386__ symbol instead of use defined i386Guillem Jover
* i386/configfrag.ac (i386): Remove definition. * i386/intel/pmap.c (pmap_update_interrupt): Rename i386 to __i386__. * i386/intel/pmap.h: Likewise. * kern/debug.c (Debugger): Likewise. * kern/lock.c (simple_lock, simple_lock_try, db_show_all_slocks): Likewise.
2012-03-09Use unsigned long for addresses and sizesSamuel Thibault
TODO: remonter formats * i386/include/mach/i386/vm_types.h (vm_offset_t): Define to unsigned long. (signed32_t): Define to signed int. (unsigned32_t): Define to unsigned int. * i386/include/mach/sa/stdarg.h (__va_size): Use sizeof(unsigned long)-1 instead of 3. * include/mach/port.h (mach_port_t): Define to vm_offset_t instead of natural_t. * include/sys/types.h (size_t): Define to unsigned long instead of natural_t. * linux/src/include/asm-i386/posix_types.h (__kernel_size_t): Define to unsigned long. (__kernel_ssize_t): Define to long. * linux/src/include/linux/stddef.h (size_t): Define to unsigned long. * device/dev_pager.c (dev_pager_hash): Cast port to vm_offset_t insted of natural_t. (device_pager_data_request): Fix format. * device/ds_routines.c (ds_no_senders): Fix format. * i386/i386/io_map.c (io_map): Likewise. * i386/i386at/autoconf.c (take_dev_irq): Likewise. * i386/i386at/com.c (comattach): Likewise. * i386/i386at/lpr.c (lprattach): Likewise. * i386/i386at/model_dep.c (mem_size_init, mem_size_init, c_boot_entry): Likewise. * i386/intel/pmap.c (pmap_enter): Likewise. * ipc/ipc_notify.c (ipc_notify_port_deleted, ipc_notify_msg_accepted, ipc_notify_dead_name): Likewise. * ipc/mach_port.c (mach_port_destroy, mach_port_deallocate): Likewise. * kern/ipc_kobject.c (ipc_kobject_destroy): Likewise. * kern/slab.c (kalloc_init): Likewise. * vm/vm_fault.c (vm_fault_page): Likewise. * vm/vm_map.c (vm_map_pmap_enter): Likewise. * xen/block.c (device_read): Likewise. * device/net_io.c (bpf_match): Take unsigned long * instead of unsigned int *. (bpf_do_filter): Make mem unsigned long instead of long. * i386/i386/ktss.c (ktss_init): Cast pointer to unsigned long instead of unsigned. * i386/i386/pcb.c (stack_attach, switch_ktss): Cast pointers to long instead of int. * i386/i386/trap.c (dump_ss): Likewise. * ipc/ipc_hash.c (IH_LOCAL_HASH): Cast object to vm_offset_t. * ipc/mach_msg.c (mach_msg_receive, mach_msg_receive_continue): Cast kmsg to vm_offset_t instead of natural_t. * kern/pc_sample.c (take_pc_sample): Cast to vm_offset_t instead of natural_t. * kern/boot_script.c (sym, arg): Set type of `val' field to long instead of int. (create_task, builtin_symbols, boot_script_parse_line, boot_script_define_function): Cast to long instead of int. * kern/bootstrap.c (bootstrap_create): Likewise. * kern/sched_prim.c (decl_simple_lock_data): Likewise. * kern/printf.c (vsnprintf): Set size type to size_t. * kern/printf.h (vsnprintf): Likewise. * vm/vm_map.h (kentry_data_size): Fix type to vm_size_t. * vm/vm_object.c (vm_object_pmap_protect_by_page): Fix size parameter type to vm_size_t.
2012-01-28Merge branch 'master' into master-slabSamuel Thibault
2012-01-22Fix build on 64bit hostSamuel Thibault
When stealing the memset function from the 32bit host libc on a 64bit host system, glibc tends to bring unwanted references to _Unwind_Resume, __gcc_personality_v0, etc. So let's stop stealing memset. * kern/strings.c (memset): New function. * Makefile.am (clib_routines): Remove memset.
2011-12-29Upgrade number of event queuesSamuel Thibault
* kern/sched_prim.c (NUMQUEUES): Increase to 1031
2011-12-17Remove arbitrary limits used by the zone systemRichard Braun
The zone allocator could limit the size of its zones to an arbitrary value set at zinit() time. There is no such parameter with the slab module. As a result of removing those limits, the kern/mach_param.h header becomes empty, and is simply removed altogether. * Makefrag.am (libkernel_a_SOURCES): Remove kern/mach_param.h. * i386/i386/fpu.c: Remove #include <kern/mach_param.h>. * i386/i386/machine_task.c: Likewise. * i386/i386/pcb.c: Likewise. * ipc/ipc_init.c: Likewise. (ipc_space_max): Remove variable. (ipc_tree_entry_max): Likewise. (ipc_port_max): Likewise. (ipc_pset_max): Likewise. * ipc/ipc_init.h (IPC_ZONE_TYPE): Remove macro. (ipc_space_max): Remove extern declaration. (ipc_tree_entry_max): Likewise. (ipc_port_max): Likewise. (ipc_pset_max): Likewise. * ipc/ipc_hash.c (ipc_hash_init): Don't use ipc_tree_entry_max to compute ipc_hash_global_size. * ipc/ipc_marequest.c: Remove #include <kern/mach_param.h>. (ipc_marequest_max): Remove variable. (ipc_marequest_init): Don't use ipc_marequest_max to compute ipc_marequest_size. (ipc_marequest_info): Return (unsigned int)-1 in maxp. * kern/act.c: Remove #include <kern/mach_param.h>. * kern/mach_clock.c: Likewise. * kern/priority.c: Likewise. * kern/task.c: Likewise. * kern/thread.c: Likewise. * vm/memory_object_proxy.c: Likewise. * vm/vm_fault.c: Likewise.
2011-12-17Remove the defunct kernel_task_create() functionRichard Braun
The kmem_suballoc() function, which has been replaced with kmem_submap(), is called by kernel_task_create(). Rather than update it, remove this now unused function. * kern/task.c (kernel_task_create): Remove function. * kern/task.h (kernel_task_create): Remove prototype.
2011-12-17Fix kern/kalloc.h includesRichard Braun
* device/dev_pager.c: Remove #include <kern/kalloc.h>. * i386/i386/io_perm.c: Add #include <kern/kalloc.h>. * kern/bootstrap.c: Likewise. * kern/ipc_tt.c: Likewise. * kern/pc_sample.c: Likewise. * kern/processor.c: Likewise. * kern/server_loop.ch: Likewise. * kern/thread.c: Likewise. * linux/dev/glue/block.c: Likewise. * linux/dev/glue/net.c: Likewise. * vm/vm_map.c: Likewise. * xen/block.c: Likewise. * xen/net.c: Likewise. * xen/store.c: Likewise.
2011-12-17Adjust the kernel to use the slab allocatorRichard Braun
* device/dev_lookup.c: Replace zalloc header, types and function calls with their slab counterparts. * device/dev_pager.c: Likewise. * device/ds_routines.c: Likewise. * device/io_req.h: Likewise. * device/net_io.c: Likewise. * i386/i386/fpu.c: Likewise. * i386/i386/io_perm.c: Likewise. * i386/i386/machine_task.c: Likewise. * i386/i386/pcb.c: Likewise. * i386/i386/task.h: Likewise. * i386/intel/pmap.c: Likewise. * i386/intel/pmap.h: Remove #include <kernel/zalloc.h>. * include/mach_debug/mach_debug.defs (host_zone_info): Replace routine declaration with skip directive. (host_slab_info): New routine declaration. * include/mach_debug/mach_debug_types.defs (zone_name_t) (zone_name_array_t, zone_info_t, zone_info_array_t): Remove types. (cache_info_t, cache_info_array_t): New types. * include/mach_debug/mach_debug_types.h: Replace #include <mach_debug/zone_info.h> with <mach_debug/slab_info.h>. * ipc/ipc_entry.c: Replace zalloc header, types and function calls with their slab counterparts. * ipc/ipc_entry.h: Likewise. * ipc/ipc_init.c: Likewise. * ipc/ipc_marequest.c: Likewise. * ipc/ipc_object.c: Likewise. * ipc/ipc_object.h: Likewise. * ipc/ipc_space.c: Likewise. * ipc/ipc_space.h: Likewise. * ipc/ipc_table.c (kalloc_map): Remove extern declaration. * kern/act.c: Replace zalloc header, types and function calls with their slab counterparts. * kern/kalloc.h: Add #include <vm/vm_types.h>. (MINSIZE): Remove definition. (kalloc_map): Add extern declaration. (kget): Remove prototype. * kern/mach_clock.c: Adjust comment. * kern/processor.c: Replace zalloc header, types and function calls with their slab counterparts. * kern/startup.c: Remove #include <kernel/zalloc.h>. * kern/task.c: Replace zalloc header, types and function calls with their slab counterparts. * kern/thread.c: Likewise. * vm/memory_object_proxy.c: Likewise. * vm/vm_external.c: Likewise. * vm/vm_fault.c: Likewise. * vm/vm_init.c: Likewise. * vm/vm_map.c: Likewise. * vm/vm_object.c: Likewise. * vm/vm_page.h: Remove #include <kernel/zalloc.h>. * vm/vm_pageout.c: Replace zalloc header, types and function calls with their slab counterparts. * vm/vm_resident.c: Likewise. (zdata, zdata_size): Remove declarations. (vm_page_bootstrap): Don't steal memory for the zone system.
2011-12-17Import the slab allocatorRichard Braun
As it is intended to completely replace the zone allocator, remove it on the way. So long to the venerable code ! * Makefrag.am (libkernel_a_SOURCES): Add kern/slab.{c,h}, remove kern/kalloc.c and kern/zalloc.{c,h}. * configfrag.ac (SLAB_VERIFY, SLAB_USE_CPU_POOLS): Add defines. * i386/Makefrag.am (libkernel_a_SOURCES): Remove i386/i386/zalloc.h. * i386/configfrag.ac (CPU_L1_SHIFT): Remove define. * include/mach_debug/slab_info.h: New file. * kern/slab.c: Likewise. * kern/slab.h: Likewise. * i386/i386/zalloc.h: Remove file. * include/mach_debug/zone_info.h: Likewise. * kern/kalloc.c: Likewise. * kern/zalloc.c: Likewise. * kern/zalloc.h: Likewise.
2011-12-17Import utility filesRichard Braun
* Makefrag.am (libkernel_a_SOURCES): Add kern/list.h, kern/rbtree.c, kern/rbtree.h and kern/rbtree_i.h. * kern/list.h: New file. * kern/rbtree.c: Likewise. * kern/rbtree.h: Likewise. * kern/rbtree_i.h: Likewise. * kern/macro_help.h (MACRO_BEGIN): Use GNU C compound statement enclosed in parentheses. (MACRO_END): Likewise.
2011-09-28Make thread_suspend honor the TH_UNINT flagSergio López
Interrupting a thread without a continuation, puts it in a inconsistent state. This is the cause for the bug described in https://lists.gnu.org/archive/html/bug-hurd/2011-09/msg00148.html * kern/thread.c (thread_suspend): Fail with KERN_FAILURE if thread is uninterruptible.
2011-09-12Remove unused [!MACH_KERNEL] driver codeGuillem Jover
Use «unifdef -DMACK_KERNEL=1» as a starting point, but only remove the code not exposed on public headers, the rest is needed to build properly from userland. * device/cons.c [!MACH_KERNEL]: Remove includes. [!MACH_KERNEL] (constty): Remove variable. (cninit, cnmaygetc) [MACH_KERNEL]: Remove preprocessor conditionals. [!MACH_KERNEL] (cnopen, cnclose, cnread, cnwrite, cnioctl, cnselect) (cncontrol): Remove functions. * device/cons.h (struct consdev) [MACH_KERNEL]: Remove preprocessor conditional. * device/kmsg.h [MACH_KERNEL]: Likewise. * i386/i386at/autoconf.c [!MACH_KERNEL]: Remove includes. * i386/i386at/kd_event.c [!MACH_KERNEL]: Likewise. [!MACH_KERNEL] (kbd_sel, kbdpgrp, kbdflag): Remove variables. [!MACH_KERNEL] (KBD_COLL, KBD_ASYNC, KBD_NBIO): Remove macros. (kbdopen, kbdclose, kbd_enqueue) [!MACH_KERNEL]: Remove code. [!MACH_KERNEL] (kbdioctl, kbdselect, kbdread): Remove functions. [!MACH_KERNEL] (X_kdb_enter_init, X_kdb_exit_init: Likewise. * i386/i386at/kd_mouse.c [!MACH_KERNEL]: Remove includes. [!MACH_KERNEL] (mouse_sel, mousepgrp, mouseflag): Remove variables. [!MACH_KERNEL] (MOUSE_COLL, MOUSE_ASYNC, MOUSE_NBIO): Remove macros. (mouseopen, mouseclose, kd_mouse_read, mouse_enqueue) [!MACH_KERNEL]: Remove code. [!MACH_KERNEL] (mouseioctl, mouseselect, mouseread): Remove functions. * i386/i386at/lpr.c [!MACH_KERNEL]: Remove includes. (lpropen) [MACH_KERNEL]: Remove preprocessor conditionals. (lpropen, lprclose, lprstart) [!MACH_KERNEL]: Remove code. [!MACH_KERNEL] (lprwrite, lprioctl, lprstop): Remove functions. * i386/i386at/rtc.c (readtodc, writetodc) [!MACH_KERNEL]: Remove code. * kern/mach_factor.c [MACH_KERNEL]: Remove preprocessor conditional. * xen/time.c (readtodc) [!MACH_KERNEL]: Remove code.
2011-09-05Drop module memory free verbositySamuel Thibault
* kern/bootstrap.c (bootstrap_create): Do not show freed module memory.
2011-09-05Free memory used by boot modulesSamuel Thibault
* vm/vm_resident.c (pmap_startup): Warn when some pages could not be included in the allocator due to bad estimation. * kern/bootstrap.c: Include <vm/pmap.h>. (bootstrap_create): Call vm_page_create on bootstrap modules content.
2011-09-03Add prototypes for memory_object_proxy.c functionsFridolín Pokorný
* vm/memory_object_proxy.h: Add file. * vm/vm_init.c: Include <vm/memory_object_proxy.h>. * kern/ipc_kobject.c: Likewise. * Makefile.am (libkernel_a_SOURCES): Add vm/memory_object_proxy.h.
2011-09-02Remove long obsolete RPC routinesGuillem Jover
* kern/compat_xxx_defs.h: Remove file. * Makefrag.am (libkernel_a_SOURCES): Remove `kern/compat_xxx_defs.h'. * include/mach/mach_types.defs (xxx_emulation_vector_t): Remove type. * device/device.srv: Do not simport <kern/compat_xxx_defs.h>. * kern/mach.srv: Likewise. * kern/mach_host.srv: Likewise. * include/device/device.defs [MACH_KERNEL]: Do not simport <kern/compat_xxx_defs.h>. (xxx_device_set_status, xxx_device_get_status) (xxx_device_set_filter): Replace routine declarations with skip directives. * include/mach/mach.defs [MACH_KERNEL]: Do not simport <kern/compat_xxx_defs.h>. (xxx_memory_object_lock_request, xxx_task_get_emulation_vector) (xxx_task_set_emulation_vector, xxx_host_info, xxx_slot_info) (xxx_cpu_control, xxx_task_info, xxx_thread_get_state) (xxx_thread_set_state, xxx_thread_info): Replace routine declarations with skip directive. * include/mach/mach_host.defs [MACH_KERNEL]: Do not simport <kern/compat_xxx_defs.h>. (yyy_host_info, yyy_processor_info, yyy_processor_control) (xxx_processor_set_default_priv, yyy_processor_set_info): Replace routine declarations with skip directive. * kern/ipc_host.c (xxx_processor_set_default_priv): Remove function. * kern/machine.c (xxx_host_info, xxx_slot_info) (xxx_cpu_control): Likewise. * kern/syscall_emulation.c (xxx_task_set_emulation_vector) (xxx_task_get_emulation_vector): Likewise. * vm/memory_object.c (xxx_memory_object_lock_request): Likewise.
2011-09-02Add vsnprintf prototypeGuillem Jover
* kern/printf.h (vsnprintf): New prototype.
2011-08-30Cast function timeout() argument to fix a warningGuillem Jover
* kern/mach_clock.h (timer_func_t): New function type. (struct timer_elt): Change fcn type to timer_func_t. * i386/i386at/com.c (comstart): Cast `ttrstrt' to `timer_funct_t *' in `timeout' call. * i386/i386at/lpr.c (lprstart): Likewise,
2011-08-27Add prototype for log functionGuillem Jover
* kern/debug.h (log): New prototype.
2011-08-22Add more details to "zone exhausted" panics.Samuel Thibault
* kern/zalloc (zalloc): Add more details to "zone exhausted" panics.
2011-08-18Add compiler barrier to update_mapped_timeSamuel Thibault
* kern/mach_clock.c (update_mapped_time): Add compiler barriers between writes to shared memory. Update comment: on SMP, write barriers are required.
2011-04-22Update constants to nowadays standardsSamuel Thibault
Follow-up to fa6c711d * vm/vm_object.c (DEVICE_IO_MAP_SIZE): Increase to 16MiB. * kern/kalloc.c (kalloc_map_size): Increase to 64MiB. * i386/intel/pmap.c (morevm): Increase to 128MiB.
2011-04-20Warn once when part of the kernel is lacking memorySamuel Thibault
* kern/printf.h (printf_once): New macro. * ipc/mach_port.c (mach_port_names, mach_port_get_set_status): Warn when returning KERN_RESOURCE_SHORTAGE. * vm/vm_kern.c: Include printf.h. (kmem_alloc, kmem_realloc, kmem_alloc_wired, kmem_alloc_aligned, kmem_alloc_pageable): Warn when failing. * vm/vm_resident.c (vm_page_grab_contiguous_pages): Warn when returning KERN_RESOURCE_SHORTAGE.
2011-01-15Move -d and -H parse to kern/startup.cSamuel Thibault
The code is arch-independant, and reboot_on_panic, used by kern/debug.c would be undefined on non-i386. * i386/i386at/model_dep.c (reboot_on_panic, c_boot_entry): Move -d and -H parse to... * kern/startup.c (reboot_on_panic,setup_main): ... here. Include <string.h>
2010-04-06Fix crash on Xen when no module is providedSamuel Thibault
* kern/bootstrap.c (bootstrap_create): Iterate over bmods only if is not NULL.
2009-12-21Add a SoftDebugger functionSamuel Thibault
* kern/debug.h (SoftDebugger): Add prototype. * kern/debug.c (Debugger): Move code invoking debugging trap to... (SoftDebugger): ... new function. Print the passed message. * kern/lock_mon.c (decl_simple_lock_data, retry_bit_lock): Call SoftDebugger instead of Debugger. * device/ds_routines.c (ds_device_open, device_read, device_read_inband): Call SoftDebugger instead of Debugger. * i386/i386at/model_dep.c (c_boot_entry): Call SoftDebugger instead of Debugger. * kern/syscall_sw.c (null_port, kern_invalid): Call SoftDebugger instead of Debugger. * vm/vm_object.c (vm_object_collapse): Call SoftDebugger instead of Debugger.
2009-12-16Add Xen supportSamuel Thibault
2009-03-11 Samuel Thibault <samuel.thibault@ens-lyon.org> * i386/i386/vm_param.h (VM_MIN_KERNEL_ADDRESS) [MACH_XEN]: Set to 0x20000000. * i386/i386/i386asm.sym (pfn_list) [VM_MIN_KERNEL_ADDRESS == LINEAR_MIN_KERNEL_ADDRESS]: Define to constant PFN_LIST. 2009-02-27 Samuel Thibault <samuel.thibault@ens-lyon.org> * i386/intel/pmap.c [MACH_HYP] (INVALIDATE_TLB): Call hyp_invlpg instead of flush_tlb when e - s is compile-time known to be PAGE_SIZE. 2008-11-27 Samuel Thibault <samuel.thibault@ens-lyon.org> * i386/configfrag.ac (enable_pae): Enable by default on the Xen platform. 2007-11-14 Samuel Thibault <samuel.thibault@ens-lyon.org> * i386/i386at/model_dep.c (machine_relax): New function. (c_boot_entry): Refuse to boot as dom0. 2007-10-17 Samuel Thibault <samuel.thibault@ens-lyon.org> * i386/i386/fpu.c [MACH_XEN]: Disable unused fpintr(). 2007-08-12 Samuel Thibault <samuel.thibault@ens-lyon.org> * Makefile.am (clib_routines): Add _START. * i386/xen/xen_boothdr: Use _START for VIRT_BASE and PADDR_OFFSET. Add GUEST_VERSION and XEN_ELFNOTE_FEATURES. 2007-06-13 Samuel Thibault <samuel.thibault@ens-lyon.org> * i386/i386/user_ldt.h (user_ldt) [MACH_XEN]: Add alloc field. * i386/i386/user_ldt.c (i386_set_ldt) [MACH_XEN]: Round allocation of LDT to a page, set back LDT pages read/write before freeing them. (user_ldt_free) [MACH_XEN]: Likewise. 2007-04-18 Samuel Thibault <samuel.thibault@ens-lyon.org> * device/ds_routines.c [MACH_HYP]: Add hypervisor block and net devices. 2007-02-19 Thomas Schwinge <tschwinge@gnu.org> * i386/xen/Makefrag.am [PLATFORM_xen] (gnumach_LINKFLAGS): Define. * Makefrag.am: Include `xen/Makefrag.am'. * configure.ac: Include `xen/configfrag.ac'. (--enable-platform): Support the `xen' platform. * i386/configfrag.ac: Likewise. * i386/Makefrag.am [PLATFORM_xen]: Include `i386/xen/Makefrag.am'. 2007-02-19 Samuel Thibault <samuel.thibault@ens-lyon.org> Thomas Schwinge <tschwinge@gnu.org> * i386/xen/Makefrag.am: New file. * xen/Makefrag.am: Likewise. * xen/configfrag.ac: Likewise. 2007-02-11 (and later dates) Samuel Thibault <samuel.thibault@ens-lyon.org> Xen support * Makefile.am (clib_routines): Add _start. * Makefrag.am (include_mach_HEADERS): Add include/mach/xen.h. * device/cons.c (cnputc): Call hyp_console_write. * i386/Makefrag.am (libkernel_a_SOURCES): Move non-Xen source to [PLATFORM_at]. * i386/i386/debug_trace.S: Include <i386/xen.h> * i386/i386/fpu.c [MACH_HYP] (init_fpu): Call set_ts() and clear_ts(), do not enable CR0_EM. * i386/i386/gdt.c: Include <mach/xen.h> and <intel/pmap.h>. [MACH_XEN]: Make gdt array extern. [MACH_XEN] (gdt_init): Register gdt with hypervisor. Request 4gb segments assist. Shift la_shift. [MACH_PSEUDO_PHYS] (gdt_init): Shift pfn_list. * i386/i386/gdt.h [MACH_XEN]: Don't define KERNEL_LDT and LINEAR_DS. * i386/i386/i386asm.sym: Include <i386/xen.h>. [MACH_XEN]: Remove KERNEL_LDT, Add shared_info's CPU_CLI, CPU_PENDING, CPU_PENDING_SEL, PENDING, EVTMASK and CR2. * i386/i386/idt.c [MACH_HYP] (idt_init): Register trap table with hypervisor. * i386/i386/idt_inittab.S: Include <i386/i386asm.h>. [MACH_XEN]: Set IDT_ENTRY() for hypervisor. Set trap table terminator. * i386/i386/ktss.c [MACH_XEN] (ktss_init): Request exception task switch from hypervisor. * i386/i386/ldt.c: Include <mach/xen.h> and <intel/pmap.h> [MACH_XEN]: Make ldt array extern. [MACH_XEN] (ldt_init): Set ldt readwrite. [MACH_HYP] (ldt_init): Register ldt with hypervisor. * i386/i386/locore.S: Include <i386/xen.h>. Handle KERNEL_RING == 1 case. [MACH_XEN]: Read hyp_shared_info's CR2 instead of %cr2. [MACH_PSEUDO_PHYS]: Add mfn_to_pfn computation. [MACH_HYP]: Drop Cyrix I/O-based detection. Read cr3 instead of %cr3. Make hypervisor call for pte invalidation. * i386/i386/mp_desc.c: Include <mach/xen.h>. [MACH_HYP] (mp_desc_init): Panic. * i386/i386/pcb.c: Include <mach/xen.h>. [MACH_XEN] (switch_ktss): Request stack switch from hypervisor. [MACH_HYP] (switch_ktss): Request ldt and gdt switch from hypervisor. * i386/i386/phys.c: Include <mach/xen.h> [MACH_PSEUDO_PHYS] (kvtophys): Do page translation. * i386/i386/proc_reg.h [MACH_HYP] (cr3): New declaration. (set_cr3, get_cr3, set_ts, clear_ts): Implement macros. * i386/i386/seg.h [MACH_HYP]: Define KERNEL_RING macro. Include <mach/xen.h> [MACH_XEN] (fill_descriptor): Register descriptor with hypervisor. * i386/i386/spl.S: Include <i386/xen.h> and <i386/i386/asm.h> [MACH_XEN] (pic_mask): #define to int_mask. [MACH_XEN] (SETMASK): Implement. * i386/i386/vm_param.h [MACH_XEN] (HYP_VIRT_START): New macro. [MACH_XEN]: Set VM_MAX_KERNEL_ADDRESS to HYP_VIRT_START- LINEAR_MIN_KERNEL_ADDRESS + VM_MIN_KERNEL_ADDRESS. Increase KERNEL_STACK_SIZE and INTSTACK_SIZE to 4 pages. * i386/i386at/conf.c [MACH_HYP]: Remove hardware devices, add hypervisor console device. * i386/i386at/cons_conf.c [MACH_HYP]: Add hypervisor console device. * i386/i386at/model_dep.c: Include <sys/types.h>, <mach/xen.h>. [MACH_XEN] Include <xen/console.h>, <xen/store.h>, <xen/evt.h>, <xen/xen.h>. [MACH_PSEUDO_PHYS]: New boot_info, mfn_list, pfn_list variables. [MACH_XEN]: New la_shift variable. [MACH_HYP] (avail_next, mem_size_init): Drop BIOS skipping mecanism. [MACH_HYP] (machine_init): Call hyp_init(), drop hardware initialization. [MACH_HYP] (machine_idle): Call hyp_idle(). [MACH_HYP] (halt_cpu): Call hyp_halt(). [MACH_HYP] (halt_all_cpus): Call hyp_reboot() or hyp_halt(). [MACH_HYP] (i386at_init): Initialize with hypervisor. [MACH_XEN] (c_boot_entry): Add Xen-specific initialization. [MACH_HYP] (init_alloc_aligned, pmap_valid_page): Drop zones skipping mecanism. * i386/intel/pmap.c: Include <mach/xen.h>. [MACH_PSEUDO_PHYS] (WRITE_PTE): Do page translation. [MACH_HYP] (INVALIDATE_TLB): Request invalidation from hypervisor. [MACH_XEN] (pmap_map_bd, pmap_create, pmap_destroy, pmap_remove_range) (pmap_page_protect, pmap_protect, pmap_enter, pmap_change_wiring) (pmap_attribute_clear, pmap_unmap_page_zero, pmap_collect): Request MMU update from hypervisor. [MACH_XEN] (pmap_bootstrap): Request pagetable initialization from hypervisor. [MACH_XEN] (pmap_set_page_readwrite, pmap_set_page_readonly) (pmap_set_page_readonly_init, pmap_clear_bootstrap_pagetable) (pmap_map_mfn): New functions. * i386/intel/pmap.h [MACH_XEN] (INTEL_PTE_GLOBAL): Disable global page support. [MACH_PSEUDO_PHYS] (pte_to_pa): Do page translation. [MACH_XEN] (pmap_set_page_readwrite, pmap_set_page_readonly) (pmap_set_page_readonly_init, pmap_clear_bootstrap_pagetable) (pmap_map_mfn): Declare functions. * i386/i386/xen.h: New file. * i386/xen/xen.c: New file. * i386/xen/xen_boothdr.S: New file. * i386/xen/xen_locore.S: New file. * include/mach/xen.h: New file. * kern/bootstrap.c [MACH_XEN] (boot_info): Declare variable. [MACH_XEN] (bootstrap_create): Rebase multiboot header. * kern/debug.c: Include <mach/xen.h>. [MACH_HYP] (panic): Call hyp_crash() without delay. * linux/dev/include/asm-i386/segment.h [MACH_HYP] (KERNEL_CS) (KERNEL_DS): Use ring 1. * xen/block.c: New file. * xen/block.h: Likewise. * xen/console.c: Likewise. * xen/console.h: Likewise. * xen/evt.c: Likewise. * xen/evt.h: Likewise. * xen/grant.c: Likewise. * xen/grant.h: Likewise. * xen/net.c: Likewise. * xen/net.h: Likewise. * xen/ring.c: Likewise. * xen/ring.h: Likewise. * xen/store.c: Likewise. * xen/store.h: Likewise. * xen/time.c: Likewise. * xen/time.h: Likewise. * xen/xen.c: Likewise. * xen/xen.h: Likewise. * xen/public/COPYING: Import file from Xen. * xen/public/callback.h: Likewise. * xen/public/dom0_ops.h: Likewise. * xen/public/domctl.h: Likewise. * xen/public/elfnote.h: Likewise. * xen/public/elfstructs.h: Likewise. * xen/public/event_channel.h: Likewise. * xen/public/features.h: Likewise. * xen/public/grant_table.h: Likewise. * xen/public/kexec.h: Likewise. * xen/public/libelf.h: Likewise. * xen/public/memory.h: Likewise. * xen/public/nmi.h: Likewise. * xen/public/physdev.h: Likewise. * xen/public/platform.h: Likewise. * xen/public/sched.h: Likewise. * xen/public/sysctl.h: Likewise. * xen/public/trace.h: Likewise. * xen/public/vcpu.h: Likewise. * xen/public/version.h: Likewise. * xen/public/xen-compat.h: Likewise. * xen/public/xen.h: Likewise. * xen/public/xencomm.h: Likewise. * xen/public/xenoprof.h: Likewise. * xen/public/arch-x86/xen-mca.h: Likewise. * xen/public/arch-x86/xen-x86_32.h: Likewise. * xen/public/arch-x86/xen-x86_64.h: Likewise. * xen/public/arch-x86/xen.h: Likewise. * xen/public/arch-x86_32.h: Likewise. * xen/public/arch-x86_64.h: Likewise. * xen/public/io/blkif.h: Likewise. * xen/public/io/console.h: Likewise. * xen/public/io/fbif.h: Likewise. * xen/public/io/fsif.h: Likewise. * xen/public/io/kbdif.h: Likewise. * xen/public/io/netif.h: Likewise. * xen/public/io/pciif.h: Likewise. * xen/public/io/protocols.h: Likewise. * xen/public/io/ring.h: Likewise. * xen/public/io/tpmif.h: Likewise. * xen/public/io/xenbus.h: Likewise. * xen/public/io/xs_wire.h: Likewise.
2009-11-30Add stack-protector supportSamuel Thibault
* kern/debug.c (__stack_chk_guard): New variable (__stack_chk_fail): New function.
2009-11-28Add memory object proxiesSamuel Thibault
Memory object proxies permit to replicate objects with different parameters, like reduced privileged, different offset, etc. They are e.g. essential for properly managing memory access permissions. 2005-06-06 Marcus Brinkmann <marcus@gnu.org> * include/mach/mach4.defs: Add memory_object_create_proxy interface. * Makefile.in (vm-cfiles): Add memory_object_proxy.c. * i386/include/mach/i386/vm_types.h (vm_offset_array_t): New type. * include/mach/memory_object.h (memory_object_array_t): New type. * vm/memory_object_proxy.c: New file. * kern/ipc_kobject.h: New macro IKOT_PAGER_PROXY. Bump up macros IKOT_UNKNOWN and IKOT_MAX_TYPE. * kern/ipc_kobject.c (ipc_kobject_notify): Call memory_object_proxy_notify for IKOT_PAGER_PROXY. * vm/vm_init.c (vm_mem_init): Call memory_object_proxy_init. * vm/vm_user.c (vm_map): Implement support for proxy memory objects.
2009-11-28Add -H option to halt on panicSamuel Thibault
2005-12-29 Soeren D. Schulze <soeren.d.schulze@gmx.de> * i386/i386at/model_dep.c (reboot_on_panic) [!MACH_KBD]: New variable. (c_boot_entry) [!MACH_KBD]: Set reboot_on_panic to 0 if kernel_cmdline contains '-H'. * kern/debug.c (panic): Call halt_all_cpus with reboot_on_panic as argument.
2009-11-22Really call startrtclock() with an active thread.Samuel Thibault
* kern/startup.c (cpu_launch_first_thread): Call startrtclock really after starting at least one thread.
2009-10-20Fix warningsSamuel Thibault
* device/chario.c (ttypush): Set parameter type to void * instead of struct tty *, and implicitly cast the former into the latter instead. * i386/i386at/com.c: Include <kern/mach_clock.h>. (timeout, ttrstrt): Remove declarations. (comtimer): Add unused void * parameter. (comopen): Pass NULL to comtimer function. * i386/i386at/kd.h (kd_belloff): Add unused void * parameter. * i386/i386at/kd.c (timeout): Remove declaration. (kd_belloff): Add unused void * parameter. (feep, kdsetbell): Pass NULL to kd_belloff function. * i386/i386at/lpr.c: Include <mach_clock.h>. (timeout, ttrstrt): Remove declarations. * kern/mach_clock.c (softclock, timeout, untimeout): Set parameter type of fcn function pointer to void * instead of char *. Set type of param to void * instead of char *. * kern/mach_clock.h (timer_elt): Set parameter type of fcn member to void * instead of char *. Set time of param member to void * instead of char *. (timeout): Set parameter type of fcn function pointer parameter to void * instead of char *. (untimeout): Likewise, set type of param parameter to void * instead of char *. * kern/sched_prim.c (sched_init): Remove cast of recompute_priorities. Replace (char *)0 with NULL. (thread_timeout): Set parameter type to void * instead of thread_t, and implicitly cast the former into the latter instead. (thread_timeout_setup): Remove cast of thread_timeout, cast thread_depress_timeout into (void (*) (void*)). Remove cast of thread. (thread_recompute_priorities): Add unused void * parameter.
2009-10-20Fix warningSamuel Thibault
* kern/thread.c (_s_): Remove unused variable.
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