62c666566e
- kernel detects CPUs by searching ACPI tables for local apic nodes - each CPU has its own TSS that points to its own stack. All cpus boot on the same boot stack (in sequence) but switch to its private stack as soon as they can. - final booting code in main() placed in bsp_finish_booting() which is executed only after the BSP switches to its final stack - apic functions to send startup interrupts - assembler functions to handle CPU features not needed for single cpu mode like memory barries, HT detection etc. - new files kernel/smp.[ch], kernel/arch/i386/arch_smp.c and kernel/arch/i386/include/arch_smp.h - 16-bit trampoline code for the APs. It is executed by each AP after receiving startup IPIs it brings up the CPUs to 32bit mode and let them spin in an infinite loop so they don't do any damage. - implementation of kernel spinlock - CONFIG_SMP and CONFIG_MAX_CPUS set by the build system
70 lines
3.3 KiB
C
70 lines
3.3 KiB
C
#ifndef CONFIG_H
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#define CONFIG_H
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/* This file defines the kernel configuration. It allows to set sizes of some
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* kernel buffers and to enable or disable debugging code, timing features,
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* and individual kernel calls.
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*
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* Changes:
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* Jul 11, 2005 Created. (Jorrit N. Herder)
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*/
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/* In embedded and sensor applications, not all the kernel calls may be
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* needed. In this section you can specify which kernel calls are needed
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* and which are not. The code for unneeded kernel calls is not included in
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* the system binary, making it smaller. If you are not sure, it is best
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* to keep all kernel calls enabled.
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*/
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#define USE_FORK 1 /* fork a new process */
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#define USE_NEWMAP 1 /* set a new memory map */
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#define USE_EXEC 1 /* update process after execute */
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#define USE_CLEAR 1 /* clean up after process exit */
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#define USE_EXIT 1 /* a system process wants to exit */
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#define USE_TRACE 1 /* process information and tracing */
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#define USE_GETKSIG 1 /* retrieve pending kernel signals */
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#define USE_ENDKSIG 1 /* finish pending kernel signals */
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#define USE_KILL 1 /* send a signal to a process */
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#define USE_SIGSEND 1 /* send POSIX-style signal */
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#define USE_SIGRETURN 1 /* sys_sigreturn(proc_nr, ctxt_ptr, flags) */
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#define USE_ABORT 1 /* shut down MINIX */
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#define USE_GETINFO 1 /* retrieve a copy of kernel data */
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#define USE_TIMES 1 /* get process and system time info */
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#define USE_SETALARM 1 /* schedule a synchronous alarm */
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#define USE_VTIMER 1 /* set or retrieve a process-virtual timer */
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#define USE_DEVIO 1 /* read or write a single I/O port */
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#define USE_VDEVIO 1 /* process vector with I/O requests */
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#define USE_SDEVIO 1 /* perform I/O request on a buffer */
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#define USE_IRQCTL 1 /* set an interrupt policy */
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#define USE_SEGCTL 1 /* set up a remote segment */
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#define USE_PRIVCTL 1 /* system privileges control */
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#define USE_UMAP 1 /* map virtual to physical address */
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#define USE_VIRCOPY 1 /* copy using virtual addressing */
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#define USE_PHYSCOPY 1 /* copy using physical addressing */
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#define USE_MEMSET 1 /* write char to a given memory area */
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#define USE_RUNCTL 1 /* control stop flags of a process */
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#define USE_UPDATE 1 /* update a process into another */
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#define USE_MCONTEXT 1 /* enable getting and setting of mach context*/
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#define USE_STATECTL 1 /* let a process control its state */
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/* Length of program names stored in the process table. This is only used
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* for the debugging dumps that can be generated with the IS server. The PM
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* server keeps its own copy of the program name.
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*/
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#define P_NAME_LEN 8
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/* This section contains defines for valuable system resources that are used
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* by device drivers. The number of elements of the vectors is determined by
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* the maximum needed by any given driver. The number of interrupt hooks may
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* be incremented on systems with many device drivers.
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*/
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#ifndef CONFIG_APIC
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#define NR_IRQ_HOOKS 16 /* number of interrupt hooks */
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#else
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#define NR_IRQ_HOOKS 64 /* number of interrupt hooks */
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#endif
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#define VDEVIO_BUF_SIZE 64 /* max elements per VDEVIO request */
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#define K_PARAM_SIZE 512
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#endif /* CONFIG_H */
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