summaryrefslogtreecommitdiff
path: root/i386
AgeCommit message (Collapse)Author
2016-11-06Revert "i386: use ACPI to power off the machine"Justus Winter
This reverts commit c031b41b783cc99c0bd5aac7d14c1d6e34520397. Adding the ACPI parser from GRUB was a mistake as its license conflicts with the one used by the legacy Linux drivers. Furthermore, adding support for ACPI to the kernel violates the minimality principle.
2016-11-01i386: Use discontiguous page directories when using PAE.Justus Winter
Previously, we used contiguous page directories four pages in length when using PAE. To prevent physical memory fragmentation, we need to use virtual memory for objects spanning multiple pages. Virtual kernel memory, however, is a scarce commodity. * i386/intel/pmap.h (lin2pdenum): Never include the page directory pointer table index. (lin2pdenum_cont): New macro which does include said index. (struct pmap): Remove the directory base pointer when using PAE. * i386/intel/pmap.c (pmap_pde): Fix lookup. (pmap_pte): Fix check for uninitialized pmap. (pmap_bootstrap): Do not store the page directory base if PAE. (pmap_init): Reduce size of page directories to one page, use direct-mapped memory. (pmap_create): Allocate four page directories per pmap. (pmap_destroy): Adapt to the discontinuous directories. (pmap_collect): Likewise. * i386/i386/xen.h (hyp_mmu_update_la): Adapt code manipulating the kernels page directory. * i386/i386at/model_dep.c (i386at_init): Likewise.
2016-10-31Make multiboot cmdline and modules non-permanent reservationsSamuel Thibault
* i386/i386at/model_dep.c (register_boot_data): For multiboot cmdline, module structure, module data and module strings, set biosmem_register_boot_data temporary parameter to TRUE.
2016-10-24Fix warningsSamuel Thibault
* i386/i386/seg.h (fill_descriptor): Fix format for vm_offset_t. * i386/i386/xen.h (hyp_free_mfn, hyp_free_page): Fix format for unsigned long.
2016-10-22i386: Allocate page directories using the slab allocator.Justus Winter
* i386/intel/pmap.c (pd_cache): New variable. (pdp_cache): Likewise. (pmap_init): Initialize new caches. (pmap_create): Use the caches. (pmap_destroy): Free to the caches.
2016-10-02Fix format securityDavid Michael
* i386/i386at/biosmem.c (boot_panic): Use %s format instead of passing the string directly to `panic'. (biosmem_unregister_boot_data): Use %s format instead of passing `biosmem_panic_inval_boot_data' directly to `panic'.
2016-09-22biosmem: show memory map at bootSamuel Thibault
* i386/i386at/biosmem.c (biosmem_type_desc, biosmem_map_show): Define even if DEBUG is 0. But show biosmem heap addresses only if DEBUG is 1.
2016-09-21Enable high memoryRichard Braun
* i386/i386at/biosmem.c (biosmem_setup): Load the HIGHMEM segment if present. (biosmem_free_usable): Report high memory as usable. * vm/vm_page.c (vm_page_boot_table_size, vm_page_table_size, vm_page_mem_size, vm_page_mem_free): Scan all segments. * vm/vm_resident.c (vm_page_grab): Describe allocation strategy with regard to the HIGHMEM segment.
2016-09-21Redefine what an external page isRichard Braun
Instead of a "page considered external", which apparently takes into account whether a page is dirty or not, redefine this property to reliably mean "is in an external object". This commit mostly deals with the impact of this change on the page allocation interface. * i386/intel/pmap.c (pmap_page_table_page_alloc): Update call to vm_page_grab. * kern/slab.c (kmem_pagealloc_physmem): Use vm_page_grab instead of vm_page_grab_contig. (kmem_pagefree_physmem): Use vm_page_release instead of vm_page_free_contig. * linux/dev/glue/block.c (alloc_buffer, device_read): Update call to vm_page_grab. * vm/vm_fault.c (vm_fault_page): Update calls to vm_page_grab and vm_page_convert. * vm/vm_map.c (vm_map_copy_steal_pages): Update call to vm_page_grab. * vm/vm_page.h (struct vm_page): Remove `extcounted' member. (vm_page_external_limit, vm_page_external_count): Remove extern declarations. (vm_page_convert, vm_page_grab): Update declarations. (vm_page_release, vm_page_grab_phys_addr): New function declarations. * vm/vm_pageout.c (VM_PAGE_EXTERNAL_LIMIT): Remove macro. (VM_PAGE_EXTERNAL_TARGET): Likewise. (vm_page_external_target): Remove variable. (vm_pageout_scan): Remove specific handling of external pages. (vm_pageout): Don't set vm_page_external_limit and vm_page_external_target. * vm/vm_resident.c (vm_page_external_limit): Remove variable. (vm_page_insert, vm_page_replace, vm_page_remove): Update external page tracking. (vm_page_convert): Remove `external' parameter. (vm_page_grab): Likewise. Remove specific handling of external pages. (vm_page_grab_phys_addr): Update call to vm_page_grab. (vm_page_release): Remove `external' parameter and remove specific handling of external pages. (vm_page_wait): Remove specific handling of external pages. (vm_page_alloc): Update call to vm_page_grab. (vm_page_free): Update call to vm_page_release. * xen/block.c (device_read): Update call to vm_page_grab. * xen/net.c (device_write): Likewise.
2016-09-21Replace vm_offset_t with phys_addr_t where appropriateRichard Braun
* i386/i386/phys.c (pmap_zero_page, pmap_copy_page, copy_to_phys, copy_from_phys, kvtophys): Use the phys_addr_t type for physical addresses. * i386/intel/pmap.c (pmap_map, pmap_map_bd, pmap_destroy, pmap_remove_range, pmap_page_protect, pmap_enter, pmap_extract, pmap_collect, phys_attribute_clear, phys_attribute_test, pmap_clear_modify, pmap_is_modified, pmap_clear_reference, pmap_is_referenced): Likewise. * i386/intel/pmap.h (pt_entry_t): Unconditionally define as a phys_addr_t. (pmap_zero_page, pmap_copy_page, kvtophys): Use the phys_addr_t type for physical addresses. * vm/pmap.h (pmap_enter, pmap_page_protect, pmap_clear_reference, pmap_is_referenced, pmap_clear_modify, pmap_is_modified, pmap_extract, pmap_map_bd): Likewise. * vm/vm_page.h (vm_page_fictitious_addr): Declare as a phys_addr_t. * vm/vm_resident.c (vm_page_fictitious_addr): Likewise. (vm_page_grab_phys_addr): Change return type to phys_addr_t.
2016-09-21Remove phys_first_addr and phys_last_addr global variablesRichard Braun
The old assumption that all physical memory is directly mapped in kernel space is about to go away. Those variables are directly linked to that assumption. * i386/i386/model_dep.h (phys_first_addr): Remove extern declaration. (phys_last_addr): Likewise. * i386/i386/phys.c (pmap_zero_page): Use VM_PAGE_DIRECTMAP_LIMIT instead of phys_last_addr. (pmap_copy_page, copy_to_phys, copy_from_phys): Likewise. * i386/i386/trap.c (user_trap): Remove check against phys_last_addr. * i386/i386at/biosmem.c (biosmem_bootstrap_common): Don't set phys_last_addr. * i386/i386at/mem.c (memmmap): Use vm_page_lookup_pa to determine if a physical address references physical memory. * i386/i386at/model_dep.c (phys_first_addr): Remove variable. (phys_last_addr): Likewise. (pmap_free_pages, pmap_valid_page): Remove functions. * i386/intel/pmap.c: Include i386at/biosmem.h. (pa_index): Turn into an alias for vm_page_table_index. (pmap_bootstrap): Replace uses of phys_first_addr and phys_last_addr as appropriate. (pmap_virtual_space): Use vm_page_table_size instead of phys_first_addr and phys_last_addr to obtain the number of physical pages. (pmap_verify_free): Remove function. (valid_page): Turn this macro into an inline function and rewrite using vm_page_lookup_pa. (pmap_page_table_page_alloc): Build the pmap VM object using vm_page_table_size to determine its size. (pmap_remove_range, pmap_page_protect, phys_attribute_clear, phys_attribute_test): Turn page indexes into unsigned long integers. (pmap_enter): Likewise. In addition, use either vm_page_lookup_pa or biosmem_directmap_end to determine if a physical address references physical memory. * i386/xen/xen.c (hyp_p2m_init): Use vm_page_table_size instead of phys_last_addr to obtain the number of physical pages. * kern/startup.c (phys_first_addr): Remove extern declaration. (phys_last_addr): Likewise. * linux/dev/init/main.c (linux_init): Use vm_page_seg_end with the appropriate segment selector instead of phys_last_addr to determine where high memory starts. * vm/pmap.h: Update requirements description. (pmap_free_pages, pmap_valid_page): Remove declarations. * vm/vm_page.c (vm_page_seg_end, vm_page_boot_table_size, vm_page_table_size, vm_page_table_index): New functions. * vm/vm_page.h (vm_page_seg_end, vm_page_table_size, vm_page_table_index): New function declarations. * vm/vm_resident.c (vm_page_bucket_count, vm_page_hash_mask): Define as unsigned long integers. (vm_page_bootstrap): Compute VP table size based on the page table size instead of the value returned by pmap_free_pages.
2016-09-11Fix spurious warningSamuel Thibault
* i386/i386/db_trace.c (db_i386_stack_trace): Do not check for frame validity if it is 0.
2016-09-11Fix size of functions interrupt and syscallSamuel Thibault
* i386/i386/locore.S (syscall): Add END(syscall). * i386/i386at/interrupt.S (interrupt): Add END(interrupt).
2016-09-11Set function type on symbols created by ENTRY macroSamuel Thibault
* i386/include/mach/i386/asm.h (ENTRY, ENTRY2, ASENTRY, Entry): Use .type @function on created entries.
2016-09-11Close parenthesisSamuel Thibault
* i386/i386/db_trace.c (db_i386_stack_trace): When stopping on zero frame, close parameters parenthesis.
2016-09-11Fix exploring stack trace up to assemblySamuel Thibault
* i386/i386/db_trace.c (db_i386_stack_trace): Do not stop as soon as frame is 0, lookup PC first, and stop only before accessing the frame content.
2016-09-06Fix registration of strings from in boot dataRichard Braun
* i386/i386at/model_dep.c (register_boot_data): Use phystokv on strings when computing their length.
2016-09-06Make early physical page allocation truely reliableRichard Braun
Import upstream biosmem changes and adjust for local modifications. Specifically, this change makes the biosmem module reliably track all boot data by storing their addresses in a sorted array. This allows both the early page allocator and the biosmem_free_usable function to accurately find any range of free pages. * i386/i386at/biosmem.c: Remove inclusion of <i386at/elf.h>. (_start, _end): Remove variable declarations. (BIOSMEM_MAX_BOOT_DATA): New macro. (struct biosmem_boot_data): New type. (biosmem_boot_data_array, biosmem_nr_boot_data): New variables. (biosmem_heap_start, biosmem_heap_bottom, biosmem_heap_top, biosmem_heap_end): Change type to phys_addr_t. (biosmem_panic_inval_boot_data): New variable. (biosmem_panic_too_many_boot_data): Likewise. (biosmem_panic_toobig_msg): Variable renamed ... (biosmem_panic_too_big_msg): ... to this. (biosmem_register_boot_data): New function. (biosmem_unregister_boot_data): Likewise. (biosmem_map_adjust): Update reference to panic message. (biosmem_map_find_avail): Add detailed description. (biosmem_save_cmdline_sizes): Remove function. (biosmem_find_heap_clip): Likewise. (biosmem_find_heap): Likewise. (biosmem_find_avail_clip, biosmem_find_avail): New functions. (biosmem_setup_allocator): Receive const multiboot info, replace calls to biosmem_find_heap with calls to biosmem_find_avail and update accordingly. Register the heap as boot data. (biosmem_xen_bootstrap): Register the Xen boot info and the heap as boot data. (biosmem_bootstrap): Receive const multiboot information. Remove call to biosmem_save_cmdline_sizes. (biosmem_bootalloc): Remove assertion on the VM system state. (biosmem_type_desc, biosmem_map_show): Build only if DEBUG is true. (biosmem_unregister_temporary_boot_data): New function. (biosmem_free_usable_range): Change address range format. (biosmem_free_usable_entry): Rewrite to use biosmem_find_avail without abusing it. (biosmem_free_usable): Call biosmem_unregister_temporary_boot_data, update call to biosmem_free_usable_entry. * i386/i386at/biosmem.h (biosmem_register_boot_data): New function. (biosmem_bootalloc): Update description. (biosmem_bootstrap): Update description and declaration. (biosmem_free_usable): Likewise. * i386/i386at/model_dep.c: Include <i386at/elf.h>. (machine_init): Update call to biosmem_free_usable. (register_boot_data): New function. (i386at_init): Call register_boot_data where appropriate.
2016-09-03Fix early physical page allocationRichard Braun
Import upstream biosmem and vm_page changes, and adjust for local modifications. Specifically, the biosmem module was mistakenly loading physical segments that did not clip with the heap as completely available. This change makes it load them as completely unavailable during startup, and once the VM system is ready, additional pages are loaded. * i386/i386at/biosmem.c (DEBUG): New macro. (struct biosmem_segment): Remove members `avail_start' and `avail_end'. (biosmem_heap_cur): Remove variable. (biosmem_heap_bottom, biosmem_heap_top, biosmem_heap_topdown): New variables. (biosmem_find_boot_data_update, biosmem_find_boot_data): Remove functions. (biosmem_find_heap_clip, biosmem_find_heap): New functions. (biosmem_setup_allocator): Rewritten to use the new biosmem_find_heap function. (biosmem_bootalloc): Support both bottom-up and top-down allocations. (biosmem_directmap_size): Renamed to ... (biosmem_directmap_end): ... this function. (biosmem_load_segment): Fix segment loading. (biosmem_setup): Restrict usable memory to the directmap segment. (biosmem_free_usable_range): Add checks on input parameters. (biosmem_free_usable_update_start, biosmem_free_usable_start, biosmem_free_usable_reserved, biosmem_free_usable_end): Remove functions. (biosmem_free_usable_entry): Rewritten to use the new biosmem_find_heap function. (biosmem_free_usable): Restrict usable memory to the directmap segment. * i386/i386at/biosmem.h (biosmem_bootalloc): Update description. (biosmem_directmap_size): Renamed to ... (biosmem_directmap_end): ... this function. (biosmem_free_usable): Update declaration. * i386/i386at/model_dep.c (machine_init): Call biosmem_free_usable. * vm/vm_page.c (DEBUG): New macro. (struct vm_page_seg): New member `heap_present'. (vm_page_load): Remove heap related parameters. (vm_page_load_heap): New function. * vm/vm_page.h (vm_page_load): Remove heap related parameters. Update description. (vm_page_load_heap): New function.
2016-09-01pmap: fix map window creation on xenRichard Braun
* i386/intel/pmap.c (pmap_get_mapwindow, pmap_put_mapwindow): Use the appropriate xen hypercall if building for paravirtualized page table management.
2016-08-25Use invlpg for single-page pagetable changesSamuel Thibault
* i386/intel/pmap.c (INVALIDATE_TLB): When e-s is constant, equal to PAGE_SIZE, use just one invlpg instruction to flush the TLB.
2016-08-25Drop unused macroSamuel Thibault
* i386/intel/pmap.c (MAX_TBIS_SIZE): Drop unused macro.
2016-08-16i386: import string functions from X15 and relicense to GPLv2+Richard Braun
* i386/Makefrag.am (libkernel_a_SOURCES): Add i386/i386/strings.c. * i386/i386/strings.c: New file.
2016-08-12i386: request the boot loader to page-align modulesRichard Braun
* i386/i386at/boothdr.S (MULTIBOOT_FLAGS): Set LSB bit.
2016-06-27Fix locking errorRichard Braun
* i386/i386/io_perm.c (no_senders): Remove bogus call to ip_lock.
2016-05-26Cope with getc returning -1Samuel Thibault
* i386/i386at/lpr.c (lprstart): Use int instead of char to store result of getc, so as to return in case of getting -1.
2016-05-18Fix gcc-6 warningsSamuel Thibault
* ddb/db_elf.c (elf_db_sym_init): Turn `i' into unsigned. * device/ds_routines.c (ds_device_open, device_writev_trap): Likewise. * i386/i386/user_ldt.c (i386_set_ldt): Likewise for `i', `min_selector', and `first_desc'. (i386_get_ldt): Likewise for `ldt_count'. (user_ldt_free): Likewise for `i'. * i386/i386/xen.h (hyp_set_ldt): Turn `count' into unsigned long. * i386/intel/pmap.c (pmap_bootstrap): Turn `i', `j' and 'n' into unsigned. (pmap_clear_bootstrap_pagetable): Likewise for `i' and `j'. * ipc/ipc_kmsg.c (ipc_msg_print): Turn `i' and `numwords' into unsigned. * kern/boot_script.c (boot_script_parse_line): Likewise for `i'. * kern/bootstrap.c (bootstrap_create): Likewise for `n' and `i'. * kern/host.c (host_processors): Likewise for `i'. * kern/ipc_tt.c (mach_ports_register): Likewise. * kern/mach_clock.c (tickadj, bigadj): turn into unsigned. * kern/processor.c (processor_set_things): Turn `i' into unsigned. * kern/task.c (task_threads): Likewise. * kern/thread.c (consider_thread_collect, stack_init): Likewise. * kern/strings.c (memset): Turn `i' into size_t. * vm/memory_object.c (memory_object_lock_request): Turn `i' into unsigned. * xen/block.c (hyp_block_init): Use %u format for evt. (device_open): Drop unused err variable. (device_write): Turn `copy_npages', `i', `nbpages', and `j' into unsigned. * xen/console.c (hypcnread, hypcnwrite, hypcnclose): Turn dev to dev_t. (hypcnclose): Return void. * xen/console.h (hypcnread, hypcnwrite, hypcnclose): Fix prototypes accordingly. * xen/evt.c (form_int_mask): Turn `i' into int. * xen/net.c (hyp_net_init): Use %u format for evt. (device_open): Remove unused `err' variable.
2016-04-21Fix xen bootSamuel Thibault
* i386/i386/pcb.c (pcb_init): Make sure there is a thread before calling current_task().
2016-04-20Fix type of program counter argumentJustus Winter
* i386/i386/hardclock.c (hardclock): Use '0' instead of 'NULL'. * vm/vm_fault (vm_fault_cleanup): Likewise.
2016-04-20xen: fix buildJustus Winter
* i386/xen/xen.c (hypclock_machine_intr): Fix 'clock_interrupt' call. * xen/time.c (clkstart): Likewise.
2016-04-20Add kernel profiling through samplingSamuel Thibault
* NEWS: Advertise feature. * configfrac.ac (--enable-kernsample): Add option. * kern/pc_sample.h (take_pc_sample): Add usermode and pc parameter. (take_pc_sample_macro): Take usermode and pc parameters, pass as such to take_pc_sample. * kern/pc_sample.c (take_pc_sample): Use pc parameter when usermode is 1. * kern/mach_clock.c (clock_interrupt): Add pc parameter. Pass usermode and pc to take_pc_sample_macro call. * i386/i386/hardclock.c (hardclock): Pass regs->eip to clock_interrupt call on normal interrupts, NULL on interrupt interrupt. * vm/vm_fault.c (vm_fault_cleanup): Set usermode to 1 and pc to NULL in take_pc_sample_macro call.
2016-04-17Add memory barrier to spl*Samuel Thibault
* i386/i386/spl.S (mb): Define macro (SETIPL, spl0, spl7): Call mb.
2016-04-15i386: Fix error handlingJustus Winter
* i386/i386at/model_dep.c (i386at_init): Fix error handling. Signed-off-by: Justus Winter <justus@gnupg.org>
2016-04-04Use uint32_t instead of unsigned32_t.Flavio Cruz
Implement stdint.h and use it in gnumach. Remove old type definitions such as signed* and unsigned*. * Makefile.am: Add -ffreestanding. * i386/i386/xen.h: Use uint64_t. * i386/include/mach/i386/machine_types.defs: Use uint32_t and int32_t. * i386/include/mach/i386/vm_types.h: Remove definitions of int*, uint*, unsigned* and signed* types. * i386/xen/xen.c: Use uint64_t. * include/device/device_types.defs: Use uint32_t. * include/mach/std_types.defs: Use POSIX types. * include/mach/std_types.h: Include stdint.h. * include/stdint.h: New file with POSIX types. * include/sys/types.h: Include stdint.h. * ipc/ipc_kmsg.c: Use uint64_t. * kern/exception.c: Use uint32_t. * linux/dev/include/linux/types.h: Remove POSIX types. * xen/block.c: Use uint64_t. * xen/net.c: Do not use removed unsigned*_t types. * xen/ring.h: Use uint32_t instead. * xen/store.c: Use uint32_t. * xen/store.h: Use uint32_t. * xen/time.c: Use POSIX types only. * xen/time.h: Use uint64_t.
2016-03-19Make kernel mapping start address configurableSamuel Thibault
and move it to 16MiB by default to free 24bit DMA area * i386/configfrag.ac (--with-_START_MAP): Add option, default to 0x1000000. * i386/Makefrag.am (_START_MAP): Set to $(_START_MAP). (_START): Set to _START_MAP+0xC0000000.
2016-03-11Ship missing filesSamuel Thibault
Makefrag.am (libkernel_a_SOURCES): Add kern/log2.h. (EXTRA_DIST): Add kern/exc.defs. i386/Makefrag.am (libkernel_a_SOURCES): Add i386/i386at/elf.h.
2016-03-06Inherit fpu control word from parent to childSamuel Thibault
* i386/i386/thread.h (struct pcb): Add init_control field. * i386/i386/fpu.h (fpinherit): New prototype. * i386/i386/fpu.c (fpinit): Add thread parameter. When init_control field is set, use that value instead of a hardcoded one. (fpinherit): New function. (fp_load): Pass thread parameter to fpinit(). * kern/thread.c (thread_create): Pass parent task to pcb_init(). * i386/i386/pcb.c (pcb_init): Add parent_task parameter, call fpinherit when it is equal to current_task().
2016-02-28i386: add parts of cpu.h from x15Justus Winter
* i386/Makefrag.am (libkernel_a_SOURCES): Add new file. * i386/i386/cpu.h: New file.
2016-02-26Document why code is not racySamuel Thibault
* i386/i386at/kd_mouse.c (kd_mouse_read): Document why the assert_wait/thread_block pair is not racy.
2016-02-14Reduce VM_KERNEL_MAP_SIZESamuel Thibault
Now that KMEM_MAP_SIZE (128MiB) has been removed. * i386/i386/vm_param.h (VM_KERNEL_MAP_SIZE): Decrease by 128MiB.
2016-02-02Fix unused variable warningsRichard Braun
* i386/i386at/biosmem.c (biosmem_bootstrap): Remove unused variables.
2016-02-02Stack the slab allocator directly on top of the physical allocatorRichard Braun
In order to increase the amount of memory available for kernel objects, without reducing the amount of memory available for user processes, a new allocation strategy is introduced in this change. Instead of allocating kernel objects out of kernel virtual memory, the slab allocator directly uses the direct mapping of physical memory as its backend. This largely increases the kernel heap, and removes the need for address translation updates. In order to allow this strategy, an assumption made by the interrupt code had to be removed. In addition, kernel stacks are now also allocated directly from the physical allocator. * i386/i386/db_trace.c: Include i386at/model_dep.h (db_i386_reg_value): Update stack check. * i386/i386/locore.S (trap_from_kernel, all_intrs, int_from_intstack): Update interrupt handling. * i386/i386at/model_dep.c: Include kern/macros.h. (int_stack, int_stack_base): New variables. (int_stack_high): Remove variable. (i386at_init): Update interrupt stack initialization. * i386/i386at/model_dep.h: Include i386/vm_param.h. (int_stack_top, int_stack_base): New extern declarations. (ON_INT_STACK): New macro. * kern/slab.c: Include vm/vm_page.h (KMEM_CF_NO_CPU_POOL, KMEM_CF_NO_RECLAIM): Remove macros. (kmem_pagealloc, kmem_pagefree, kalloc_pagealloc, kalloc_pagefree): Remove functions. (kmem_slab_create): Allocate slab pages directly from the physical allocator. (kmem_slab_destroy): Release slab pages directly to the physical allocator. (kmem_cache_compute_sizes): Update the slab size computation algorithm to return a power-of-two suitable for the physical allocator. (kmem_cache_init): Remove custom allocation function pointers. (kmem_cache_reap): Remove check on KMEM_CF_NO_RECLAIM. (slab_init, kalloc_init): Update calls to kmem_cache_init. (kalloc, kfree): Directly fall back on the physical allocator for big allocation sizes. (host_slab_info): Remove checks on defunct flags. * kern/slab.h (kmem_slab_alloc_fn_t, kmem_slab_free_fn_t): Remove types. (struct kmem_cache): Add `slab_order' member, remove `slab_alloc_fn' and `slab_free_fn' members. (KMEM_CACHE_NOCPUPOOL, KMEM_CACHE_NORECLAIM): Remove macros. (kmem_cache_init): Update prototype, remove custom allocation functions. * kern/thread.c (stack_alloc): Allocate stacks from the physical allocator. * vm/vm_map.c (vm_map_kentry_cache, kentry_data, kentry_data_size): Remove variables. (kentry_pagealloc): Remove function. (vm_map_init): Update calls to kmem_cache_init, remove initialization of vm_map_kentry_cache. (vm_map_create, _vm_map_entry_dispose, vm_map_copyout): Unconditionnally use vm_map_entry_cache. * vm/vm_map.h (kentry_data, kentry_data_size, kentry_count): Remove extern declarations. * vm/vm_page.h (VM_PT_STACK): New page type. * device/dev_lookup.c (dev_lookup_init): Update calls to kmem_cache_init. * device/dev_pager.c (dev_pager_hash_init, device_pager_init): Likewise. * device/ds_routines.c (mach_device_init, mach_device_trap_init): Likewise. * device/net_io.c (net_io_init): Likewise. * i386/i386/fpu.c (fpu_module_init): Likewise. * i386/i386/machine_task.c (machine_task_module_init): Likewise. * i386/i386/pcb.c (pcb_module_init): Likewise. * i386/intel/pmap.c (pmap_init): Likewise. * ipc/ipc_init.c (ipc_bootstrap): Likewise. * ipc/ipc_marequest.c (ipc_marequest_init): Likewise. * kern/act.c (global_act_init): Likewise. * kern/processor.c (pset_sys_init): Likewise. * kern/rdxtree.c (rdxtree_cache_init): Likewise. * kern/task.c (task_init): Likewise. * vm/memory_object_proxy.c (memory_object_proxy_init): Likewise. * vm/vm_external.c (vm_external_module_initialize): Likewise. * vm/vm_fault.c (vm_fault_init): Likewise. * vm/vm_object.c (vm_object_bootstrap): Likewise. * vm/vm_resident.c (vm_page_module_init): Likewise. (vm_page_bootstrap): Remove initialization of kentry_data.
2016-01-30Fix early page allocation on XenRichard Braun
The Xen target was completely ignored when porting the biosmem and vm_page physical memory allocators. Let's fix this. * i386/Makefrag.am (libkernel_a_SOURCES): Add i386/i386at/biosmem.{c,h}. * i386/i386/vm_page.h (VM_PAGE_MAX_SEGS, VM_PAGE_DIRECTMAP_LIMIT, VM_PAGE_HIGHMEM_LIMIT): Define for Xen. * i386/i386at/biosmem.c: Include mach/xen.h. (biosmem_panic_setup_msg): Comment out for Xen since it's unused. (biosmem_map_build, biosmem_map_build_simple, biosmem_save_cmdline_sizes, biosmem_find_boot_data_update, biosmem_find_boot_data, biosmem_setup_allocator): Likewise. (biosmem_bootstrap_common): New function. (biosmem_xen_bootstrap): Likewise, for Xen. (biosmem_bootalloc): Perform bottom-up allocations for Xen. * i386/i386at/biosmem.h (biosmem_xen_bootstrap): New prototype, for Xen. * i386/i386at/model_dep.c (i386at_init): Call biosmem_xen_bootstrap instead of biosmem_bootstrap on Xen. * i386/include/mach/i386/vm_types.h (phys_addr_t): Define as an unsigned 64-bits integer when PAE is enabled.
2016-01-23Use vm_page as the physical memory allocatorRichard Braun
This change replaces the historical page allocator with a buddy allocator implemented in vm/vm_page.c. This allocator allows easy contiguous allocations and also manages memory inside segments. In a future change, these segments will be used to service requests with special constraints, such as "usable for 16-bits DMA" or "must be part of the direct physical mapping". * Makefrag.am (libkernel_a_SOURCES): Add vm/vm_page.c. * i386/Makefrag.am (libkernel_a_SOURCES): Add i386/i386at/biosmem.{c,h}. * i386/i386/vm_param.h: Include kern/macros.h. (VM_PAGE_DMA_LIMIT, VM_PAGE_MAX_SEGS, VM_PAGE_DMA32_LIMIT, VM_PAGE_DIRECTMAP_LIMIT, VM_PAGE_HIGHMEM_LIMIT, VM_PAGE_SEG_DMA, VM_PAGE_SEG_DMA32, VM_PAGE_SEG_DIRECTMAP, VM_PAGE_SEG_HIGHMEM): New macros. * i386/i386at/model_dep.c: Include i386at/biosmem.h. (avail_next, avail_remaining): Remove variables. (mem_size_init): Remove function. (i386at_init): Initialize and use the biosmem module for early physical memory management. (pmap_free_pages): Return phys_last_addr instead of avail_remaining. (init_alloc_aligned): Turn into a wrapper for biosmem_bootalloc. (pmap_grab_page): Directly call init_alloc_aligned instead of pmap_next_page. * i386/include/mach/i386/vm_types.h (phys_addr_t): New type. * kern/bootstrap.c (free_bootstrap_pages): New function. (bootstrap_create): Call free_bootstrap_pages instead of vm_page_create. * kern/cpu_number.h (CPU_L1_SIZE): New macro. * kern/slab.h: Include kern/cpu_number.h. (CPU_L1_SIZE): Remove macro, moved to kern/cpu_number.h. * kern/startup.c (setup_main): Change the value of machine_info.memory_size. * linux/dev/glue/glue.h (alloc_contig_mem, free_contig_mem): Update prototypes. * linux/dev/glue/kmem.c (linux_kmem_init): Don't use defunct page queue. * linux/dev/init/main.c (linux_init): Don't free unused memory. (alloc_contig_mem, free_contig_mem): Turn into wrappers for the vm_page allocator. * linux/pcmcia-cs/glue/ds.c (PAGE_SHIFT): Don't undefine. * vm/pmap.h (pmap_startup, pmap_next_page): Remove prototypes. * vm/vm_fault.c (vm_fault_page): Update calls to vm_page_convert. * vm/vm_init.c (vm_mem_init): Call vm_page_info_all. * vm/vm_object.c (vm_object_page_map): Update call to vm_page_init. * vm/vm_page.h (vm_page_queue_free): Remove variable declaration. (vm_page_create, vm_page_release_fictitious, vm_page_release): Remove declarations. (vm_page_convert, vm_page_init): Update prototypes. (vm_page_grab_contig, vm_page_free_contig): New prototypes. * vm/vm_resident.c (vm_page_template, vm_page_queue_free, vm_page_big_pagenum): Remove variables. (vm_page_bootstrap): Update and call vm_page_setup. (pmap_steal_memory): Update and call vm_page_bootalloc. (pmap_startup, vm_page_create, vm_page_grab_contiguous_pages): Remove functions. (vm_page_init_template, vm_page_grab_contig, vm_page_free_contig): New functions. (vm_page_init): Update and call vm_page_init_template. (vm_page_release_fictitious): Make static. (vm_page_more_fictitious): Update call to vm_page_init. (vm_page_convert): Rewrite to comply with vm_page. (vm_page_grab): Update and call vm_page_alloc_pa. (vm_page_release): Update and call vm_page_free_pa.
2016-01-23Import the biosmem module from X15 and relicense to GPLv2+Richard Braun
* i386/i386at/biosmem.c: New file. * i386/i386at/biosmem.h: Likewise.
2016-01-23Import the multiboot module from X15 and relicense to GPLv2+Richard Braun
* i386/include/mach/i386/multiboot.h: Merge multiboot.h from X15.
2016-01-23Import the elf module from X15 and relicense to GPLv2+Richard Braun
* i386/i386at/elf.h: New file.
2016-01-13Increase kernel map sizeSamuel Thibault
To avoid running out of memory due to the increased consumption by radix trees which replaced arrays. * kern/slab.c (KMEM_MAP_SIZE): Bump from 96MiB to 128MiB. * i386/i386/vm_param.h (VM_KERNEL_MAP_SIZE): Add 32MiB accordingly.
2016-01-02fix t_addr assignment in lpropenFlavio Cruz
* i386/i386at/lpr.c (lpropen): Fix assignment to t_addr.
2016-01-01remove unnused disk code and headersFlavio Cruz
* i386/Makefrag.am: Remove disk.h. * i386/i386at/disk.h: Remove unnused definitions. * i386/include/mach/i386/disk.h: Remove. * linux/dev/glue/block.c (device_get_status): Remove V_GETPARMS case.
generated by cgit v1.2.3 (git 2.44.0) at 2024-05-06 01:18:57 +0000