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authorThomas Schwinge <tschwinge@gnu.org>2007-05-07 22:04:54 +0000
committerThomas Schwinge <tschwinge@gnu.org>2009-06-18 00:27:10 +0200
commit2c1f7f5ef7e2252312ecfa77b2352e89669006bf (patch)
tree503d5b28de51384b4789b75a8ec506132c795349 /kern
parent029ea3ffa9e56d33eef2e859c98848f722f63b1c (diff)
2007-05-07 Thomas Schwinge <tschwinge@gnu.org>
[bug #15295 --- ``Mach lets processes write to I/O ports''] * i386/Makefrag.am (libkernel_a_SOURCES): Add `i386/i386/io_perm.c', `i386/i386/io_perm.h', `i386/i386/machine_task.c', `i386/i386/task.h' and remove `i386/i386/io_port.h', `i386/i386/iopb.c', `i386/i386/iopb.h'. * i386/i386/io_port.h: Remove file. * i386/i386at/kd.c: Don't include <i386/io_port.h>. (vga_port_list, kd_io_device, kd_io_map_open, kd_io_map_close): Don't define and don't use anymore. * include/stddef.h: New file. * i386/i386/io_perm.c: Include <string.h>, <device/device_emul.h>, <ipc/ipc_space.h> and don't include <oskit/ds_oskit.h>. (io_perm_device_emulation_ops): New variable. (dev_open_alloc, setup_no_senders): Remove declarations. (convert_io_perm_to_port, convert_port_to_io_perm, io_perm_deallocate): Rewrite. (no_senders): New function. (i386_io_perm_create, i386_io_perm_modify): Rewrite partially, to adapt to the GNU Mach environment. * i386/i386/io_perm.h: Include <device/dev_hdr.h> and <ipc/ipc_types.h>. (io_perm, io_perm_t): New structure and accompanying type definition. (IO_PERM_NULL): Define. * i386/i386/locore.S (ktss): Move variable to... * i386/i386/ktss.c: ... here, make it a ``struct task_tss''. (ktss_init): Initialize the `task_tss' structure and the i/o permission bit map. * i386/i386/ktss.h: Adapt to that. * i386/i386/machine_task.c (machine_task_module_init): Adapt the `zinit' call to the GNU Mach environment. * i386/i386/mp_desc.c: Include <machine/ktss.h>. * i386/i386/tss.h: Include <machine/io_perm.h>. (task_tss): New structure, equivalent to the OSKit-Mach one. * i386/include/mach/i386/mach_i386.defs: Don't include <device/device_types.defs>. (device_list_t): Remove type. * i386/include/mach/i386/mach_i386_types.h (device_list_t): Remove type definition. 2007-05-07 Marcus Brinkmann <marcus@gnu.org> [bug #15295 --- ``Mach lets processes write to I/O ports''] * i386/i386/iopb.h, i386/i386/iopb.c: Obsolete files removed. * i386/i386/pcb.c (switch_context): Update the I/O permission bitmap from stack_handoff() here (not only in stack_handoff()). * i386/i386/machine_task.c (machine_task_module_init): Set ZONE_COLLECTABLE and ZONE_EXHAUSTIBLE flags for the iopb zone. Requested by Roland McGrath <roland@frob.com>. * i386/i386/io_perm.h: New file. * i386/i386/io_perm.c: New file. * i386/i386/machine_task.c: New file. * i386/i386/mp_desc.h: (struct mp_desc_table): Change type of ktss to struct task_tss. (mp_ktss): Likewise for array of pointers to the struct. * i386/i386/mp_desc.c: Include `machine/tss.h' and `machine/io_perm.h'. (mp_ktss): Change type to array of struct task_tss. (mp_desc_init): Cast pointer to x86_tss into pointer to task_tss, and use size of struct task_tss instead size of struct x86_tss. Initialize the task_tss structure. * i386/i386/pcb.c: Include `stddef.h' and `machine/tss.h'. (iopb_create, iopb_destroy): Prototypes removed. (curr_ktss): Cast pointer to base_tss to pointer to struct task_tss. (switch_ktss): Always use kernel TSS. (update_ktss_iopb): New function. (stack_handoff): Call update_ktss_iopb. (pcb_module_init): Do not call iopb_init. (pcb_terminate): Do not call iopb_destroy. (thread_setstatus): Remove local variable tss. (thread_getstatus): Rewrite i386_ISA_PORT_MAP_STATE case handler. * i386/i386/task.h: New file. * i386/i386/thread.h: Do not include `i386/iopb.h'. (struct i386_machine_state): Remove member io_tss. * i386/include/mach/i386/mach_i386.defs [KERNEL_SERVER]: Include `machine/io_perm.h'. Define intran, outtran and destructor. (io_port_t): New type. (io_perm_t): Likewise. (i386_io_port_add): Interface removed. (i386_io_port_remove): Likewise. (i386_io_port_list): Likewise. (i386_io_perm_create): New interface. (i386_io_perm_modify): Likewise. * i386/include/mach/i386/mach_i386_types.h [MACH_KERNEL]: Include `i386/io_perm.h'. [!MACH_KERNEL]: Define types io_port_t and io_perm_t. * kern/task.c (task_init): Call machine_task_module_init. (task_create): Call machine_task_init. (task_deallocate): Call machine_task_terminate. (task_collect_scan): Call machine_task_collect. * task.h: Include `machine/task.h'. (struct task): Add member machine.
Diffstat (limited to 'kern')
-rw-r--r--kern/task.c5
-rw-r--r--kern/task.h4
2 files changed, 9 insertions, 0 deletions
diff --git a/kern/task.c b/kern/task.c
index 1c4c673..45c59c5 100644
--- a/kern/task.c
+++ b/kern/task.c
@@ -67,6 +67,7 @@ void task_init(void)
0, "tasks");
eml_init();
+ machine_task_module_init ();
/*
* Create the kernel task as the first task.
@@ -145,6 +146,7 @@ kern_return_t task_create(
eml_task_reference(new_task, parent_task);
ipc_task_init(new_task, parent_task);
+ machine_task_init (new_task);
new_task->total_user_time.seconds = 0;
new_task->total_user_time.microseconds = 0;
@@ -220,6 +222,8 @@ void task_deallocate(
if (c != 0)
return;
+ machine_task_terminate (task);
+
eml_task_deallocate(task);
pset = task->processor_set;
@@ -1092,6 +1096,7 @@ void task_collect_scan(void)
pset_unlock(pset);
simple_unlock(&all_psets_lock);
+ machine_task_collect (task);
pmap_collect(task->map->pmap);
if (prev_task != TASK_NULL)
diff --git a/kern/task.h b/kern/task.h
index dce3a76..1337a98 100644
--- a/kern/task.h
+++ b/kern/task.h
@@ -46,6 +46,7 @@
#include <kern/processor.h>
#include <kern/syscall_emulation.h>
#include <vm/vm_types.h>
+#include <machine/task.h>
struct task {
/* Synchronization/destruction information */
@@ -98,6 +99,9 @@ struct task {
vm_offset_t fast_tas_base[TASK_FAST_TAS_NRAS];
vm_offset_t fast_tas_end[TASK_FAST_TAS_NRAS];
#endif /* FAST_TAS */
+
+ /* Hardware specific data. */
+ machine_task_t machine;
};
#define task_lock(task) simple_lock(&(task)->lock)