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types are correct now
Message-Id: <Y+SfNtIRuwj0Zap1@jupiter.tail36e24.ts.net>
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When generating stubs, Mig will will take the vm_size_array_t and define the
input request struct using rpc_vm_size_t since the size is variable. This will turn cause a mismatch
between types (vm_size_t* vs rpc_vm_size_t*). We could also ask Mig to produce
a prototype by using rpc_vm_size_t*, however we would need to change the implementation
of the RPC to use rpc_* types anyway since we want to avoid another allocation
of the array.
Message-Id: <Y9iwScHpmsgY3V0N@jupiter.tail36e24.ts.net>
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* vm/memory_object_proxy.c: truncate vm array types as if they were
the rpc_ version because MIG can't handle that. This rpc can't
handle more than one element anyway.
Note that the same issue with vm arrays is present at least with
syscall emulation, but that functionality seems unused for now.
A better fix could be to add a vm descriptor type in include/mach/message.h,
but then probably we don't need to use the rpc_ types in MIG anymore,
they would be needed only for the syscall definitions.
Signed-off-by: Luca Dariz <luca@orpolo.org>
Message-Id: <20220628101054.446126-15-luca@orpolo.org>
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* vm/memory_object_proxy.c: Include kern/mach4.server.h.
(memory_object_create_proxy): Drop const qualifiers.
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This is a no-op on i386.
* i386/include/mach/i386/vm_types.h (vm_size_array_t): New type.
* include/mach/mach4.defs (vm_size_array_t): New type.
(memory_object_create_proxy): Turn len parameter from vm_offset_array_t
to vm_size_array_t.
* vm/memory_object_proxy.c (memory_object_create_proxy): Turn len
parameter from const vm_offset_t * to const vm_size_t *.
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Otherwise userland can send spurious notifications.
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On success we'd have to clean the port right. Just consume it.
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We want to prevent subproxies from requesting larger sizes than what a
proxy initially allowed.
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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.
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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.
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* 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.
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* vm/memory_object_proxy.h: Add #includes.
(memory_object_proxy_lookup): New declaration.
* vm/memory_object_proxy.c: #include <vm/memory_object_proxy.h>.
* vm/vm_user.c: Likewise.
(memory_object_proxy_lookup): Drop declaration.
Parts based on a patch by Fridolín Pokorný <fridolin.pokorny@gmail.com>.
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* vm/memory_object_proxy.c (memory_object_create_proxy): Remove unused
`kr' variable.
* linux/dev/glue/block.c (free_buffer): Remove unused `i' variable.
(register_blkdev): Remove unused `err' variable.
(unregister_blkdev): Likewise.
(bread): Likewise.
(init_partition): Likewise.
* linux/dev/glue/net.c (device_write): Likewise.
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* vm/memory_object_proxy.c: Include <kern/printf.h>.
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* vm/memory_object_proxy.c: New file.
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