125 lines
2.6 KiB
C
125 lines
2.6 KiB
C
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#define _SYSTEM 1
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#include <minix/callnr.h>
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#include <minix/com.h>
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#include <minix/config.h>
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#include <minix/const.h>
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#include <minix/ds.h>
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#include <minix/endpoint.h>
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#include <minix/keymap.h>
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#include <minix/minlib.h>
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#include <minix/type.h>
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#include <minix/ipc.h>
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#include <minix/sysutil.h>
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#include <minix/syslib.h>
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#include <minix/safecopies.h>
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#include <minix/bitmap.h>
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#include <errno.h>
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#include <string.h>
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#include <env.h>
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#include <stdio.h>
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#include <assert.h>
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#include "glo.h"
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#include "proto.h"
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#include "util.h"
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#include "region.h"
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/*===========================================================================*
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* do_rs_set_priv *
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*===========================================================================*/
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PUBLIC int do_rs_set_priv(message *m)
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{
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int r, n, nr;
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struct vmproc *vmp;
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nr = m->VM_RS_NR;
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if ((r = vm_isokendpt(nr, &n)) != OK) {
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printf("do_rs_set_priv: bad endpoint %d\n", nr);
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return EINVAL;
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}
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vmp = &vmproc[n];
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if (m->VM_RS_BUF) {
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r = sys_datacopy(m->m_source, (vir_bytes) m->VM_RS_BUF,
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SELF, (vir_bytes) vmp->vm_call_mask,
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sizeof(vmp->vm_call_mask));
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if (r != OK)
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return r;
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}
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return OK;
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}
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/*===========================================================================*
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* do_rs_update *
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*===========================================================================*/
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PUBLIC int do_rs_update(message *m_ptr)
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{
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endpoint_t src_e, dst_e, reply_e;
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int r;
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src_e = m_ptr->VM_RS_SRC_ENDPT;
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dst_e = m_ptr->VM_RS_DST_ENDPT;
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/* Let the kernel do the update first. */
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r = sys_update(src_e, dst_e);
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if(r != OK) {
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return r;
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}
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/* Do the update in VM now. */
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r = swap_proc(src_e, dst_e);
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if(r != OK) {
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return r;
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}
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/* Reply, update-aware. */
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reply_e = m_ptr->m_source;
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if(reply_e == src_e) reply_e = dst_e;
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if(reply_e == dst_e) reply_e = src_e;
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m_ptr->m_type = OK;
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r = send(reply_e, m_ptr);
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if(r != OK) {
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panic("send() error");
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}
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return SUSPEND;
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}
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/*===========================================================================*
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* do_rs_memctl *
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*===========================================================================*/
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PUBLIC int do_rs_memctl(message *m_ptr)
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{
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endpoint_t ep;
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int req, r, proc_nr;
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struct vmproc *vmp;
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ep = m_ptr->VM_RS_CTL_ENDPT;
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req = m_ptr->VM_RS_CTL_REQ;
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/* Lookup endpoint. */
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if ((r = vm_isokendpt(ep, &proc_nr)) != OK) {
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printf("do_rs_memctl: bad endpoint %d\n", ep);
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return EINVAL;
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}
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vmp = &vmproc[proc_nr];
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/* Process request. */
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switch(req)
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{
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case VM_RS_MEM_PIN:
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r = map_pin_memory(vmp);
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return r;
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default:
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printf("do_rs_memctl: bad request %d\n", req);
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return EINVAL;
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}
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}
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