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Implement linux_ioperm() syscall. Fix linux_iopl() to use the level argument.

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SVGAlib should now work.

Reviewed by:	marcel
This commit is contained in:
Luoqi Chen 1999-09-22 22:01:51 +00:00
parent a66435652d
commit 2323686abc
6 changed files with 54 additions and 18 deletions
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1
sys/alpha/linux/linux_dummy.c
View File

@ -69,7 +69,6 @@ DUMMY(mpx);
DUMMY(ulimit);
DUMMY(olduname);
DUMMY(ustat);
DUMMY(ioperm);
DUMMY(ksyslog);
DUMMY(uname);
DUMMY(vhangup);

4
sys/alpha/linux/syscalls.master
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@ -150,8 +150,8 @@
struct linux_statfs_buf *buf); }
100 STD LINUX { int linux_fstatfs(int fd, \
struct linux_statfs_buf *buf); }
101 STD LINUX { int linux_ioperm(unsigned int lo, \
unsigned int hi, int val); }
101 STD LINUX { int linux_ioperm(unsigned int start, \
unsigned int length, int enable); }
102 STD LINUX { int linux_socketcall(int what, void *args); }
103 STD LINUX { int linux_ksyslog(int what); }
104 STD LINUX { int linux_setitimer(u_int which, \

31
sys/compat/linux/linux_misc.c
View File

@ -1121,18 +1121,37 @@ linux_getitimer(struct proc *p, struct linux_getitimer_args *args)
return getitimer(p, &bsa);
}
int
linux_ioperm(struct proc *p, struct linux_ioperm_args *args)
{
struct sysarch_args sa;
struct i386_ioperm_args *iia;
caddr_t sg;
sg = stackgap_init();
iia = stackgap_alloc(&sg, sizeof(struct i386_ioperm_args));
iia->start = args->start;
iia->length = args->length;
iia->enable = args->enable;
sa.op = I386_SET_IOPERM;
sa.parms = (char *)iia;
return sysarch(p, &sa);
}
int
linux_iopl(struct proc *p, struct linux_iopl_args *args)
{
int error;
error = suser(p);
if (error != 0)
return error;
if (args->level < 0 || args->level > 3)
return (EINVAL);
if ((error = suser(p)) != 0)
return (error);
if (securelevel > 0)
return EPERM;
p->p_md.md_regs->tf_eflags |= PSL_IOPL;
return 0;
return (EPERM);
p->p_md.md_regs->tf_eflags = (p->p_md.md_regs->tf_eflags & ~PSL_IOPL) |
(args->level * (PSL_IOPL / 3));
return (0);
}
int

1
sys/i386/linux/linux_dummy.c
View File

@ -69,7 +69,6 @@ DUMMY(mpx);
DUMMY(ulimit);
DUMMY(olduname);
DUMMY(ustat);
DUMMY(ioperm);
DUMMY(ksyslog);
DUMMY(uname);
DUMMY(vhangup);

31
sys/i386/linux/linux_misc.c
View File

@ -1121,18 +1121,37 @@ linux_getitimer(struct proc *p, struct linux_getitimer_args *args)
return getitimer(p, &bsa);
}
int
linux_ioperm(struct proc *p, struct linux_ioperm_args *args)
{
struct sysarch_args sa;
struct i386_ioperm_args *iia;
caddr_t sg;
sg = stackgap_init();
iia = stackgap_alloc(&sg, sizeof(struct i386_ioperm_args));
iia->start = args->start;
iia->length = args->length;
iia->enable = args->enable;
sa.op = I386_SET_IOPERM;
sa.parms = (char *)iia;
return sysarch(p, &sa);
}
int
linux_iopl(struct proc *p, struct linux_iopl_args *args)
{
int error;
error = suser(p);
if (error != 0)
return error;
if (args->level < 0 || args->level > 3)
return (EINVAL);
if ((error = suser(p)) != 0)
return (error);
if (securelevel > 0)
return EPERM;
p->p_md.md_regs->tf_eflags |= PSL_IOPL;
return 0;
return (EPERM);
p->p_md.md_regs->tf_eflags = (p->p_md.md_regs->tf_eflags & ~PSL_IOPL) |
(args->level * (PSL_IOPL / 3));
return (0);
}
int

4
sys/i386/linux/syscalls.master
View File

@ -150,8 +150,8 @@
struct linux_statfs_buf *buf); }
100 STD LINUX { int linux_fstatfs(int fd, \
struct linux_statfs_buf *buf); }
101 STD LINUX { int linux_ioperm(unsigned int lo, \
unsigned int hi, int val); }
101 STD LINUX { int linux_ioperm(unsigned int start, \
unsigned int length, int enable); }
102 STD LINUX { int linux_socketcall(int what, void *args); }
103 STD LINUX { int linux_ksyslog(int what); }
104 STD LINUX { int linux_setitimer(u_int which, \