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aos/include/barrelfish_kpi/init.h

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/**
* \file
* \brief init user-space domain special structures.
*/
/*
* Copyright (c) 2007, 2008, 2009, 2010, 2012, ETH Zurich.
* All rights reserved.
*
* This file is distributed under the terms in the attached LICENSE file.
* If you do not find this file, copies can be found by writing to:
* ETH Zurich D-INFK, Universitaetstrasse 6, CH-8092 Zurich. Attn: Systems Group.
*/
#ifndef BARRELFISH_KPI_INIT_H
#define BARRELFISH_KPI_INIT_H
#include <stdbool.h>
/**
* Size of bootinfo mapping.
*/
#define BOOTINFO_SIZEBITS (BASE_PAGE_BITS + 2)
#define BOOTINFO_SIZE (1UL << BOOTINFO_SIZEBITS)
/**
* Address (in spawned domain) of page with command-line arguments and environment
*/
#define ARGS_FRAME_BITS 17 // 128 kB
#define ARGS_SIZE ((genpaddr_t)1 << ARGS_FRAME_BITS)
#define MAX_CMDLINE_ARGS 128
#define MAX_ENVIRON_VARS 128
/**
* Size of page with inherited file descriptors
*/
#define FDS_SIZE (32 * 1024) // estimate worst case here.
/**
* \brief Amount of space required for the dispatcher frame.
*
* This needs to be big enough to fit the struct dispatcher_<arch>, and should
* also provide extra room for LMP channel receive buffers.
*
* \bug Make this arch specific
*
* Moved from include/barrelfish_kpi/dispatcher_shared.h -SG,2018-12-19.
*/
#define DISPATCHER_FRAME_SIZE ((genpaddr_t)1 << 19)
/**
* Size of initial page to carry out monitor URPC
*/
// Supports at least #MON_URPC_CHANNEL_LEN
// Change #MON_URPC_CHANNEL_LEN if changing this
#define MON_URPC_SIZE (3 * BASE_PAGE_SIZE)
/**
* Maximum possible number of entries in the memory regions array. This is
* limited by the page size minus the size of the initial part of the bootinfo
* structure.
*/
#define MAX_MEM_REGIONS ((BOOTINFO_SIZE - sizeof(struct bootinfo)) / \
sizeof(struct mem_region))
/* Root CNode */
#define ROOTCN_SLOT_TASKCN 0 ///< Taskcn slot in root cnode
#define ROOTCN_SLOT_PAGECN 1 ///< Pagecn slot in root cnode
#define ROOTCN_SLOT_BASE_PAGE_CN 2 ///< Slot for a cnode of BASE_PAGE_SIZE frames
#define ROOTCN_SLOT_SUPERCN 3 ///< Slot for a cnode of SUPER frames
#define ROOTCN_SLOT_SEGCN 4 ///< SegCN slot in root cnode
#define ROOTCN_SLOT_PACN 5 ///< PhysAddr cnode slot in root cnode
#define ROOTCN_SLOT_MODULECN 6 ///< Multiboot modules cnode slot in root cnode
#define ROOTCN_SLOT_SLOT_ALLOC0 7 ///< Used for base cn slot allocator in early code
#define ROOTCN_SLOT_SLOT_ALLOC1 8 ///< Root of slot alloc1
#define ROOTCN_SLOT_SLOT_ALLOC2 9 ///< Root of slot alloc2
#define ROOTCN_SLOT_ROOT_MAPPING 10 ///< Slot for a cnode for the root vnode mappings
#define ROOTCN_SLOT_ARGCN 11 ///< Argcn slot in root cnode
#define ROOTCN_SLOT_BSPKCB 12 ///< BSP KCB cap to fix reverse lookup issues
#define ROOTCN_SLOT_EARLY_CN_CN 13 ///< Slot for a cnode of L2_CNODE_SIZE frames
#define ROOTCN_SLOTS_USER 14 ///< First free slot in root cnode for user
/* Size of CNodes in Root CNode if not the default size */
#define SLOT_ALLOC_CNODE_BITS L2_CNODE_BITS
#define SLOT_ALLOC_CNODE_SLOTS L2_CNODE_SLOTS
/* Only allocate 32 chunks for early cnode allocator */
#define EARLY_CNODE_ALLOCATED_BITS (L2_CNODE_BITS - 2)
#define EARLY_CNODE_ALLOCATED_SLOTS (1ULL << EARLY_CNODE_ALLOCATED_BITS)
/* Task CNode */
#define TASKCN_SLOT_TASKCN 0 ///< Task CNode in itself (XXX)
#define TASKCN_SLOT_DISPATCHER 1 ///< Dispatcher cap in task cnode
#define TASKCN_SLOT_ROOTCN 2 ///< RootCN slot in task cnode
#define TASKCN_SLOT_DISPFRAME 4 ///< Dispatcher frame cap in task cnode
#define TASKCN_SLOT_IRQ 5 ///< IRQ cap in task cnode
#define TASKCN_SLOT_DEV 6 ///< IO cap in task cnode
#define TASKCN_SLOT_BOOTINFO 7 ///< Bootinfo frame slot in task cnode
#define TASKCN_SLOT_KERNELCAP 8 ///< Kernel cap in task cnode
#define TASKCN_SLOT_TRACEBUF 9 ///< Trace buffer cap in task cnode
#define TASKCN_SLOT_ARGSPAGE 10 ///< Cap for the page containing a list of command line arguments
#define TASKCN_SLOT_MON_URPC 11 ///< Frame cap for urpc comm.
#define TASKCN_SLOT_SESSIONID 12 ///< Session ID domain belongs to
#define TASKCN_SLOT_FDSPAGE 13 ///< cap for inherited file descriptors
#define TASKCN_SLOT_PERF_MON 14 ///< cap for performance monitoring
#define TASKCN_SLOT_SYSMEM 15 ///< ???
#define TASKCN_SLOT_COREBOOT 16 ///< Copy of realmode section used to bootstrap a core
#define TASKCN_SLOT_IPI 17 ///< Copy of IPI cap
#define TASKCN_SLOT_PROC_MNG 18 ///< Cap for the process manager
#define TASKCN_SLOT_DOMAINID 19 ///< Domain ID cap
#define TASKCN_SLOT_DEVMAN 20 ///< DeviceID manager capability
#define TASKCN_SLOT_VSPACE 21 ///< Vspace frame slot
#define TASKCN_SLOTS_USER 22 ///< First free slot in taskcn for user
/* Page CNode */
#define PAGECN_SLOT_VROOT 0 ///< First slot of page cnode is root page table
#define ROOTCN_SLOT_LEVEL CSPACE_LEVEL_L1
#define ROOTCN_SLOT_ADDR(slot) ((slot) << L2_CNODE_BITS)
// Cspace addresses for well-defined L2 CNodes
#define CPTR_TASKCN_BASE ROOTCN_SLOT_ADDR(ROOTCN_SLOT_TASKCN)
#define CPTR_BASE_PAGE_CN_BASE ROOTCN_SLOT_ADDR(ROOTCN_SLOT_BASE_PAGE_CN)
#define CPTR_SUPERCN_BASE ROOTCN_SLOT_ADDR(ROOTCN_SLOT_SUPERCN)
#define CPTR_PHYADDRCN_BASE ROOTCN_SLOT_ADDR(ROOTCN_SLOT_PACN)
#define CPTR_MODULECN_BASE ROOTCN_SLOT_ADDR(ROOTCN_SLOT_MODULECN)
#define CPTR_PAGECN_BASE ROOTCN_SLOT_ADDR(ROOTCN_SLOT_PAGECN)
/**
* Memory region types.
*/
enum region_type {
/// Empty memory: describes a RAM cap in supercn
RegionType_Empty,
/// Code/Data of init itself: describes a Frame cap in segcn
RegionType_RootTask,
/// Physical address range (not RAM): describes a PhysAddr cap in physaddrcn
RegionType_PhyAddr,
/// BIOS tables and platform-specific data: describes a PhysAddr cap in physaddrcn
RegionType_PlatformData,
/// Multiboot module: describes multiple Frame caps in modulecn
RegionType_Module,
///< describes memory region that is an ACPI table
RegionType_ACPI_TABLE,
RegionType_Max ///< Must be last
};
/**
* A memory region.
*/
struct mem_region {
genpaddr_t mr_base;///< Address of the start of the region
enum region_type mr_type;///< Type of region
gensize_t mr_bytes;///< Size in bytes
bool mr_consumed;///< Flag for user code to mark region consumed
size_t mrmod_size;///< Size in bytes (module type only)
ptrdiff_t mrmod_data;///< Offset of module string (module type only)
int mrmod_slot;///< First slot containing caps (module only)
};
struct mem_region_serialized {
genpaddr_t mr_base;///< Address of the start of the region
enum region_type mr_type;///< Type of region
gensize_t mr_bytes;///< Size in bytes
bool mr_consumed;///< Flag for user code to mark region consumed
size_t mrmod_size;///< Size in bytes (module type only)
ptrdiff_t mrmod_data;///< Offset of module string (module type only)
int mrmod_slot;///< First slot containing caps (module only)
genpaddr_t mrmod_frame_base; ///< base of the frame that contains the elf file
size_t mrmod_frame_bytes; ///< size of the frame that contains the elf file
};
/**
* This structure holds essential information for the init process to
* allocate and manage its address space.
*/
struct bootinfo {
/// For __k1om__
uint64_t host_msg;
uint8_t host_msg_bits;
/// Number of entries in regions array
size_t regions_length;
/// Amount of memory required to spawn another core
size_t mem_spawn_core;
/// Memory regions array
struct mem_region regions[];
};
struct bootinfo_serialized {
uint64_t host_msg;
uint8_t host_msg_bits;
size_t regions_length;
size_t mem_spawn_core;
struct mem_region_serialized regions[];
};
#endif
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