501 lines
8.4 KiB
C
501 lines
8.4 KiB
C
/* $NetBSD: emul.c,v 1.118 2010/01/13 01:53:38 pooka Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
|
|
*
|
|
* Development of this software was supported by Google Summer of Code.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
|
|
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: emul.c,v 1.118 2010/01/13 01:53:38 pooka Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/null.h>
|
|
#include <sys/vnode.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/select.h>
|
|
#include <sys/syslog.h>
|
|
#include <sys/namei.h>
|
|
#include <sys/kauth.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/device.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/file.h>
|
|
#include <sys/filedesc.h>
|
|
#include <sys/cpu.h>
|
|
#include <sys/kmem.h>
|
|
#include <sys/poll.h>
|
|
#include <sys/timetc.h>
|
|
#include <sys/tprintf.h>
|
|
#include <sys/module.h>
|
|
#include <sys/tty.h>
|
|
#include <sys/reboot.h>
|
|
#include <sys/syscallvar.h>
|
|
#include <sys/xcall.h>
|
|
|
|
#include <dev/cons.h>
|
|
|
|
#include <rump/rumpuser.h>
|
|
|
|
#include <uvm/uvm_map.h>
|
|
|
|
#include "rump_private.h"
|
|
|
|
time_t time_second = 1;
|
|
|
|
kmutex_t *proc_lock;
|
|
struct lwp lwp0;
|
|
struct vnode *rootvp;
|
|
dev_t rootdev;
|
|
int physmem = 256*256; /* 256 * 1024*1024 / 4k, PAGE_SIZE not always set */
|
|
int doing_shutdown;
|
|
const int schedppq = 1;
|
|
int hardclock_ticks;
|
|
bool mp_online = false;
|
|
struct vm_map *mb_map;
|
|
struct timeval boottime;
|
|
struct emul emul_netbsd;
|
|
int cold = 1;
|
|
int boothowto = AB_SILENT;
|
|
struct tty *constty;
|
|
|
|
char hostname[MAXHOSTNAMELEN];
|
|
size_t hostnamelen;
|
|
|
|
const char *panicstr;
|
|
const char *domainname;
|
|
int domainnamelen;
|
|
|
|
const struct filterops sig_filtops;
|
|
|
|
#define DEVSW_SIZE 255
|
|
const struct bdevsw *bdevsw0[DEVSW_SIZE]; /* XXX storage size */
|
|
const struct bdevsw **bdevsw = bdevsw0;
|
|
const int sys_cdevsws = DEVSW_SIZE;
|
|
int max_cdevsws = DEVSW_SIZE;
|
|
|
|
const struct cdevsw *cdevsw0[DEVSW_SIZE]; /* XXX storage size */
|
|
const struct cdevsw **cdevsw = cdevsw0;
|
|
const int sys_bdevsws = DEVSW_SIZE;
|
|
int max_bdevsws = DEVSW_SIZE;
|
|
|
|
struct devsw_conv devsw_conv0;
|
|
struct devsw_conv *devsw_conv = &devsw_conv0;
|
|
int max_devsw_convs = 0;
|
|
int mem_no = 2;
|
|
|
|
struct device *booted_device;
|
|
struct device *booted_wedge;
|
|
int booted_partition;
|
|
|
|
kmutex_t tty_lock;
|
|
|
|
/* sparc doesn't sport constant page size */
|
|
#ifdef __sparc__
|
|
int nbpg = 4096;
|
|
#endif
|
|
|
|
struct loadavg averunnable = {
|
|
{ 0 * FSCALE,
|
|
1 * FSCALE,
|
|
11 * FSCALE, },
|
|
FSCALE,
|
|
};
|
|
|
|
devclass_t
|
|
device_class(device_t dev)
|
|
{
|
|
|
|
return dev->dv_class;
|
|
}
|
|
|
|
void
|
|
getnanouptime(struct timespec *ts)
|
|
{
|
|
|
|
rump_getuptime(ts);
|
|
}
|
|
|
|
void
|
|
getmicrouptime(struct timeval *tv)
|
|
{
|
|
struct timespec ts;
|
|
|
|
getnanouptime(&ts);
|
|
TIMESPEC_TO_TIMEVAL(tv, &ts);
|
|
}
|
|
|
|
static void
|
|
gettime(struct timespec *ts)
|
|
{
|
|
uint64_t sec, nsec;
|
|
int error;
|
|
|
|
rumpuser_gettime(&sec, &nsec, &error);
|
|
ts->tv_sec = sec;
|
|
ts->tv_nsec = nsec;
|
|
}
|
|
|
|
void
|
|
nanotime(struct timespec *ts)
|
|
{
|
|
|
|
if (rump_threads) {
|
|
rump_gettime(ts);
|
|
} else {
|
|
gettime(ts);
|
|
}
|
|
}
|
|
|
|
/* hooray for mick, so what if I do */
|
|
void
|
|
getnanotime(struct timespec *ts)
|
|
{
|
|
|
|
nanotime(ts);
|
|
}
|
|
|
|
void
|
|
microtime(struct timeval *tv)
|
|
{
|
|
struct timespec ts;
|
|
|
|
if (rump_threads) {
|
|
rump_gettime(&ts);
|
|
TIMESPEC_TO_TIMEVAL(tv, &ts);
|
|
} else {
|
|
gettime(&ts);
|
|
TIMESPEC_TO_TIMEVAL(tv, &ts);
|
|
}
|
|
}
|
|
|
|
void
|
|
getmicrotime(struct timeval *tv)
|
|
{
|
|
|
|
microtime(tv);
|
|
}
|
|
|
|
struct proc *
|
|
p_find(pid_t pid, uint flags)
|
|
{
|
|
|
|
panic("%s: not implemented", __func__);
|
|
}
|
|
|
|
struct pgrp *
|
|
pg_find(pid_t pid, uint flags)
|
|
{
|
|
|
|
panic("%s: not implemented", __func__);
|
|
}
|
|
|
|
void
|
|
psignal(struct proc *p, int signo)
|
|
{
|
|
|
|
switch (signo) {
|
|
case SIGSYS:
|
|
break;
|
|
default:
|
|
panic("unhandled signal %d\n", signo);
|
|
}
|
|
}
|
|
|
|
void
|
|
pgsignal(struct pgrp *pgrp, int sig, int checktty)
|
|
{
|
|
|
|
panic("%s: not implemented", __func__);
|
|
}
|
|
|
|
void
|
|
kpsignal(struct proc *p, ksiginfo_t *ksi, void *data)
|
|
{
|
|
|
|
panic("%s: not implemented", __func__);
|
|
}
|
|
|
|
void
|
|
kpgsignal(struct pgrp *pgrp, ksiginfo_t *ksi, void *data, int checkctty)
|
|
{
|
|
|
|
panic("%s: not implemented", __func__);
|
|
}
|
|
|
|
int
|
|
pgid_in_session(struct proc *p, pid_t pg_id)
|
|
{
|
|
|
|
panic("%s: not implemented", __func__);
|
|
}
|
|
|
|
int
|
|
sigispending(struct lwp *l, int signo)
|
|
{
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
sigpending1(struct lwp *l, sigset_t *ss)
|
|
{
|
|
|
|
panic("%s: not implemented", __func__);
|
|
}
|
|
|
|
int
|
|
kpause(const char *wmesg, bool intr, int timeo, kmutex_t *mtx)
|
|
{
|
|
extern int hz;
|
|
int rv, error;
|
|
uint64_t sec, nsec;
|
|
|
|
if (mtx)
|
|
mutex_exit(mtx);
|
|
|
|
sec = timeo / hz;
|
|
nsec = (timeo % hz) * (1000000000 / hz);
|
|
rv = rumpuser_nanosleep(&sec, &nsec, &error);
|
|
|
|
if (mtx)
|
|
mutex_enter(mtx);
|
|
|
|
if (rv)
|
|
return error;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
suspendsched(void)
|
|
{
|
|
|
|
/* we don't control scheduling currently, can't do anything now */
|
|
}
|
|
|
|
void
|
|
lwp_unsleep(lwp_t *l, bool cleanup)
|
|
{
|
|
|
|
KASSERT(mutex_owned(l->l_mutex));
|
|
|
|
(*l->l_syncobj->sobj_unsleep)(l, cleanup);
|
|
}
|
|
|
|
vaddr_t
|
|
calc_cache_size(struct vm_map *map, int pct, int va_pct)
|
|
{
|
|
paddr_t t;
|
|
|
|
t = (paddr_t)physmem * pct / 100 * PAGE_SIZE;
|
|
if ((vaddr_t)t != t) {
|
|
panic("%s: needs tweak", __func__);
|
|
}
|
|
return t;
|
|
}
|
|
|
|
const char *
|
|
device_xname(device_t dv)
|
|
{
|
|
return "bogus0";
|
|
}
|
|
|
|
void
|
|
assert_sleepable(void)
|
|
{
|
|
|
|
/* always sleepable, although we should improve this */
|
|
}
|
|
|
|
void
|
|
tc_setclock(const struct timespec *ts)
|
|
{
|
|
|
|
panic("%s: not implemented", __func__);
|
|
}
|
|
|
|
int
|
|
proc_uidmatch(kauth_cred_t cred, kauth_cred_t target)
|
|
{
|
|
|
|
panic("%s: not implemented", __func__);
|
|
}
|
|
|
|
void
|
|
proc_crmod_enter(void)
|
|
{
|
|
|
|
panic("%s: not implemented", __func__);
|
|
}
|
|
|
|
void
|
|
proc_crmod_leave(kauth_cred_t c1, kauth_cred_t c2, bool sugid)
|
|
{
|
|
|
|
panic("%s: not implemented", __func__);
|
|
}
|
|
|
|
void
|
|
module_init_md(void)
|
|
{
|
|
|
|
/*
|
|
* Nothing for now. However, we should load the librump
|
|
* symbol table.
|
|
*/
|
|
}
|
|
|
|
/* us and them, after all we're only ordinary seconds */
|
|
static void
|
|
rump_delay(unsigned int us)
|
|
{
|
|
uint64_t sec, nsec;
|
|
int error;
|
|
|
|
sec = us / 1000000;
|
|
nsec = (us % 1000000) * 1000;
|
|
|
|
if (__predict_false(sec != 0))
|
|
printf("WARNING: over 1s delay\n");
|
|
|
|
rumpuser_nanosleep(&sec, &nsec, &error);
|
|
}
|
|
void (*delay_func)(unsigned int) = rump_delay;
|
|
|
|
void
|
|
kpreempt_disable(void)
|
|
{
|
|
|
|
/* XXX: see below */
|
|
KPREEMPT_DISABLE(curlwp);
|
|
}
|
|
|
|
void
|
|
kpreempt_enable(void)
|
|
{
|
|
|
|
/* try to make sure kpreempt_disable() is only used from panic() */
|
|
panic("kpreempt not supported");
|
|
}
|
|
|
|
void
|
|
proc_sesshold(struct session *ss)
|
|
{
|
|
|
|
panic("proc_sesshold() impossible, session %p", ss);
|
|
}
|
|
|
|
void
|
|
proc_sessrele(struct session *ss)
|
|
{
|
|
|
|
panic("proc_sessrele() impossible, session %p", ss);
|
|
}
|
|
|
|
int
|
|
proc_vmspace_getref(struct proc *p, struct vmspace **vm)
|
|
{
|
|
|
|
/* XXX */
|
|
*vm = p->p_vmspace;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ttycheckoutq(struct tty *tp, int wait)
|
|
{
|
|
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
cnputc(int c)
|
|
{
|
|
int error;
|
|
|
|
rumpuser_putchar(c, &error);
|
|
}
|
|
|
|
void
|
|
cnflush(void)
|
|
{
|
|
|
|
/* done */
|
|
}
|
|
|
|
int
|
|
tputchar(int c, int flags, struct tty *tp)
|
|
{
|
|
|
|
cnputc(c);
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
cpu_reboot(int howto, char *bootstr)
|
|
{
|
|
|
|
rump_reboot(howto);
|
|
|
|
/* this function is __dead, we must exit */
|
|
rumpuser_exit(0);
|
|
}
|
|
|
|
int
|
|
syscall_establish(const struct emul *em, const struct syscall_package *sp)
|
|
{
|
|
extern struct sysent rump_sysent[];
|
|
int i;
|
|
|
|
KASSERT(em == NULL || em == &emul_netbsd);
|
|
|
|
for (i = 0; sp[i].sp_call; i++)
|
|
rump_sysent[sp[i].sp_code].sy_call = sp[i].sp_call;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
syscall_disestablish(const struct emul *em, const struct syscall_package *sp)
|
|
{
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
calcru(struct proc *p, struct timeval *up, struct timeval *sp,
|
|
struct timeval *ip, struct timeval *rp)
|
|
{
|
|
|
|
panic("%s unimplemented", __func__);
|
|
}
|
|
|
|
int
|
|
sigismasked(struct lwp *l, int sig)
|
|
{
|
|
|
|
return 0;
|
|
}
|