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Basic VM and other minor improvements.

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Not complete, probably not fully debugged or optimized.
This commit is contained in:
Ben Gras
2008-11-19 12:26:10 +00:00
parent c888305e21
commit c078ec0331
273 changed files with 10814 additions and 4305 deletions
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kernel/system/do_getinfo.c
+47 -56
View File
@@ -10,13 +10,7 @@
*/
#include "../system.h"
#if !( POWERPC )
static unsigned long bios_buf[1024]; /* 4K, what about alignment */
static vir_bytes bios_buf_vir, bios_buf_len;
#endif /* #if !( POWERPC ) */
#include "../vm.h"
#if USE_GETINFO
@@ -31,35 +25,44 @@ register message *m_ptr; /* pointer to request message */
* call simply copies entire data structures to the caller.
*/
size_t length;
phys_bytes src_phys;
phys_bytes dst_phys;
int proc_nr, nr_e, nr;
vir_bytes src_vir;
int proc_nr, nr_e, nr, hz;
struct proc *caller;
phys_bytes ph;
caller = proc_addr(who_p);
/* Set source address and length based on request type. */
switch (m_ptr->I_REQUEST) {
case GET_MACHINE: {
length = sizeof(struct machine);
src_phys = vir2phys(&machine);
src_vir = (vir_bytes) &machine;
break;
}
case GET_KINFO: {
length = sizeof(struct kinfo);
src_phys = vir2phys(&kinfo);
src_vir = (vir_bytes) &kinfo;
break;
}
case GET_LOADINFO: {
length = sizeof(struct loadinfo);
src_phys = vir2phys(&kloadinfo);
src_vir = (vir_bytes) &kloadinfo;
break;
}
case GET_HZ: {
length = sizeof(hz);
src_vir = (vir_bytes) &hz;
hz = HZ;
break;
}
case GET_IMAGE: {
length = sizeof(struct boot_image) * NR_BOOT_PROCS;
src_phys = vir2phys(image);
src_vir = (vir_bytes) image;
break;
}
case GET_IRQHOOKS: {
length = sizeof(struct irq_hook) * NR_IRQ_HOOKS;
src_phys = vir2phys(irq_hooks);
src_vir = (vir_bytes) irq_hooks;
break;
}
case GET_SCHEDINFO: {
@@ -67,36 +70,44 @@ register message *m_ptr; /* pointer to request message */
* at once, otherwise the scheduling information may be incorrect.
* Copy the queue heads and fall through to copy the process table.
*/
if((ph=umap_local(caller, D, (vir_bytes) m_ptr->I_VAL_PTR2,length)) == 0)
return EFAULT;
length = sizeof(struct proc *) * NR_SCHED_QUEUES;
src_phys = vir2phys(rdy_head);
okendpt(m_ptr->m_source, &proc_nr);
dst_phys = numap_local(proc_nr, (vir_bytes) m_ptr->I_VAL_PTR2,
length);
if (src_phys == 0 || dst_phys == 0) return(EFAULT);
phys_copy(src_phys, dst_phys, length);
/* fall through */
CHECKRANGE_OR_SUSPEND(proc_addr(who_p), ph, length, 1);
data_copy(SYSTEM, (vir_bytes) rdy_head,
who_e, (vir_bytes) m_ptr->I_VAL_PTR2, length);
/* fall through to GET_PROCTAB */
}
case GET_PROCTAB: {
length = sizeof(struct proc) * (NR_PROCS + NR_TASKS);
src_phys = vir2phys(proc);
src_vir = (vir_bytes) proc;
break;
}
case GET_PRIVTAB: {
length = sizeof(struct priv) * (NR_SYS_PROCS);
src_phys = vir2phys(priv);
src_vir = (vir_bytes) priv;
break;
}
case GET_PROC: {
nr_e = (m_ptr->I_VAL_LEN2_E == SELF) ?
m_ptr->m_source : m_ptr->I_VAL_LEN2_E;
who_e : m_ptr->I_VAL_LEN2_E;
if(!isokendpt(nr_e, &nr)) return EINVAL; /* validate request */
length = sizeof(struct proc);
src_phys = vir2phys(proc_addr(nr));
src_vir = (vir_bytes) proc_addr(nr);
break;
}
case GET_WHOAMI: {
int len;
/* GET_WHOAMI uses m3 and only uses the message contents for info. */
m_ptr->GIWHO_EP = who_e;
len = MIN(sizeof(m_ptr->GIWHO_NAME), sizeof(caller->p_name))-1;
strncpy(m_ptr->GIWHO_NAME, caller->p_name, len);
m_ptr->GIWHO_NAME[len] = '\0';
return OK;
}
case GET_MONPARAMS: {
src_phys = kinfo.params_base; /* already is a physical */
length = kinfo.params_size;
src_vir = (vir_bytes) params_buffer;
length = sizeof(params_buffer);
break;
}
case GET_RANDOMNESS: {
@@ -109,44 +120,25 @@ register message *m_ptr; /* pointer to request message */
krandom.bin[i].r_next = 0;
}
length = sizeof(struct randomness);
src_phys = vir2phys(&copy);
src_vir = (vir_bytes) ©
break;
}
case GET_KMESSAGES: {
length = sizeof(struct kmessages);
src_phys = vir2phys(&kmess);
src_vir = (vir_bytes) &kmess;
break;
}
#if DEBUG_TIME_LOCKS
case GET_LOCKTIMING: {
length = sizeof(timingdata);
src_phys = vir2phys(timingdata);
src_vir = (vir_bytes) timingdata;
break;
}
#endif
#if !( POWERPC )
case GET_BIOSBUFFER:
bios_buf_vir = (vir_bytes)bios_buf;
bios_buf_len = sizeof(bios_buf);
length = sizeof(bios_buf_len);
src_phys = vir2phys(&bios_buf_len);
if (length != m_ptr->I_VAL_LEN2_E) return (EINVAL);
if(!isokendpt(m_ptr->m_source, &proc_nr))
panic("bogus source", m_ptr->m_source);
dst_phys = numap_local(proc_nr, (vir_bytes) m_ptr->I_VAL_PTR2, length);
if (src_phys == 0 || dst_phys == 0) return(EFAULT);
phys_copy(src_phys, dst_phys, length);
length = sizeof(bios_buf_vir);
src_phys = vir2phys(&bios_buf_vir);
break;
#endif /* #if !( POWERPC ) */
case GET_IRQACTIDS: {
length = sizeof(irq_actids);
src_phys = vir2phys(irq_actids);
src_vir = (vir_bytes) irq_actids;
break;
}
@@ -162,11 +154,10 @@ register message *m_ptr; /* pointer to request message */
/* Try to make the actual copy for the requested data. */
if (m_ptr->I_VAL_LEN > 0 && length > m_ptr->I_VAL_LEN) return (E2BIG);
if(!isokendpt(m_ptr->m_source, &proc_nr))
panic("bogus source", m_ptr->m_source);
dst_phys = numap_local(proc_nr, (vir_bytes) m_ptr->I_VAL_PTR, length);
if (src_phys == 0 || dst_phys == 0) return(EFAULT);
phys_copy(src_phys, dst_phys, length);
if((ph=umap_local(caller, D, (vir_bytes) m_ptr->I_VAL_PTR,length)) == 0)
return EFAULT;
CHECKRANGE_OR_SUSPEND(caller, ph, length, 1);
data_copy(SYSTEM, src_vir, who_e, (vir_bytes) m_ptr->I_VAL_PTR, length);
return(OK);
}