teythoon/gnumach.git/include, branch pmm-2015-08-12

XXX pmm from x15, userspace crashes soon

2015-07-26T10:14:40Z

include: provide time-value substraction

2015-07-25T18:12:14Z

* include/mach/time_value.h (time_value_assert): New macro to assert that the given value is well-formed. (time_value_add_usec): Use the new macro. (time_value_sub_usec): New macro. (time_value_add): Use `time_value_add_usec'. (time_value_sub_usec): New macro.

Allow non-privileged tasks to wire 64KiB task memory

2015-07-09T12:13:25Z

* doc/mach.texi (vm_wire): Document that the host port does not have to be privileged. * include/mach/mach_hosts.defs (vm_wire): Use mach_port_t instead of host_priv_t. * vm/vm_map.h (vm_map): Add user_wired field. * vm/vm_map.c (vm_map_setup): Initialize user_wired field to 0. (vm_map_pageable_common, vm_map_entry_delete, vm_map_copy_overwrite, vm_map_copyout_page_list, vm_map_copyin_page_list): When switching user_wired_count field of entry between 0 and non-0, accumulate the corresponding size into the user_wired field of map. * vm/vm_user.c (vm_wire): Turn host parameter into port parameter, and inline a version of convert_port_to_host_priv which records whether the host port is privileged or not. When it is not privileged, check whether the additional amount to user_wired will overcome 64KiB.

ipc: replace the IPC table with a radix tree

2015-05-20T09:08:29Z

Currently, the port names are mapped to an IPC object (e.g. a port) using a table. This, however, requires large chunks of continuous memory, and leads to scalability problems as virtual kernel memory is a scarce resource. To avoid excessive overhead, non-contiguous port names are spilled into a splay tree. Replace the IPC table with a radix tree. As the radix tree is able to store non-contiguous names with reasonable overhead, we can drop the splay tree as well. * ipc/ipc_entry.c (ipc_entry_tree_collision): Remove function. (ipc_entry_cache): New variable. (ipc_entry_lookup): Replace with a radix tree lookup. (ipc_entry_get): The free list handling is changed a little. Adopt accordingly. (ipc_entry_free_name): New function. (ipc_entry_alloc): Adopt accordingly. (ipc_entry_alloc_name): Likewise. (ipc_entry_dealloc): Likewise. (ipc_entry_grow_table): Remove function. * ipc/ipc_entry.h (struct ipc_entry): Update comment, add field for name and free list, remove unused fields. (ipc_entry_cache, ie_alloc, ie_free): New declarations. (struct ipc_tree_entry): Remove. Also remove any related declarations. (ipc_entry_grow_table): Remove declaration. * ipc/ipc_init.c (ipc_bootstrap): Adopt initialization. * ipc/ipc_kmsg.c (ipc_kmsg_copyout_header): Use `ipc_entry_alloc' instead of re-coding it. Adopt free list handling. (ipc_kmsg_copyout_object): Adopt free list handling, store the name. * ipc/ipc_object.c (ipc_object_copyout): Likewise. (ipc_object_copyout_multiname): Likewise. * ipc/ipc_space.c (ipc_space_create): Initialize radix tree and free list. Drop table and splay tree initialization. (ipc_space_destroy): Free ipc entries and radix tree, remove table and splay tree cleanup. * ipc/ipc_space.h (struct ipc_space): Add radix tree, free list, and size. Remove all fields related to the table and splay tree. * ddb/db_print.c (db_port_iterate): Adopt iteration. (db_lookup_port): Adopt lookup. * include/mach_debug/ipc_info.h: Remove unused parts of the debug interface. * include/mach_debug/mach_debug.defs: Likewise. * include/mach_debug/mach_debug_types.defs: Likewise. * ipc/mach_debug.c: Likewise. * ipc/ipc_right.c (ipc_right_reverse): Adopt lookup, store name. (ipc_right_check): Adopt removal. (ipc_right_destroy): Likewise. (ipc_right_dealloc): Likewise. (ipc_right_delta): Likewise. (ipc_right_copyin): Adopt insertion, adopt removal. (ipc_right_copyin_two): Adopt removal. (ipc_right_copyout): Adopt insertion, adopt removal. (ipc_right_rename): Likewise, also update comment. * ipc/mach_port.c (mach_port_names): Adopt iteration. (mach_port_get_set_status): Likewise. * ipc/port.h: Update comment. * ipc/ipc_hash.c: Delete file. * ipc/ipc_hash.h: Likewise. * ipc/ipc_splay.c: Likewise. * ipc/ipc_splay.h: Likewise. * Makefrag.am (libkernel_a_SOURCES): Remove these files.

include: Fix typos in comments (found by codespell)

2015-01-02T19:09:26Z

Signed-off-by: Stefan Weil

include: add X_IMPORTS to ipc definitions

2014-12-09T08:34:51Z

This makes it possible to inject imports. * include/mach/gnumach.defs: Make it possible to inject imports. * include/mach/mach.defs: Likewise. * include/mach/mach_host.defs: Likewise.

kern: provide notifications about new tasks

2014-12-09T08:34:51Z

These notifications are sent to the port registered via `register_new_task_notification' and provide a robust parental relation between tasks to a userspace server. * Makefrag.am: Add task_notify.defs. * include/mach/gnumach.defs: Add register_new_task_notification. * include/mach/task_notify.defs: New file. * kern/task.c (new_task_notification): New variable. (task_create): Send new task notifications. (register_new_task_notification): Add server function. * kern/task_notify.cli: New file.

Retire procedure `old_mach_port_get_receive_status'

2014-12-09T08:32:01Z

Retire the compatibility RPC `old_mach_port_get_receive_status' that works like `mach_port_get_receive_status' but returns an `old_mach_port_status' object that lacks the `mps_seqno' field. Do not remove the type yet, so we do not break anyones build. The RPC stubs currently distributed with the glibc require it. * include/mach/mach_port.defs (old_mach_port_get_receive_status): Drop RPC. * include/mach/mach_types.defs (old_mach_port_status_t): Drop type. * include/mach/port.h (old_mach_port_status_t): Add note to remove this for the 1.6 release. * ipc/mach_port.c (old_mach_port_get_receive_status): Drop function.

include: make `mach_port_t' payload-aware

2014-11-28T11:43:36Z

Honor a new macro `MACH_PAYLOAD_TO_PORT' to inject a translation function mapping payloads to port names in the definition of `mach_port_t'. * include/mach/std_types.defs (mach_port_t): Honor `MACH_PAYLOAD_TO_PORT'. * include/device/device.defs (reply_port_t): Likewise. * include/device/device_reply.defs (reply_port_t): Likewise. * include/device/device_request.defs (reply_port_t): Likewise.

include: add a payload-aware intran mutator for device_t

2014-11-03T10:11:43Z

* include/device/device_types.defs (device_t): Add a payload-aware intran mutator.