oneechanhax/phunix
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don't force vm to print to serial; don't kill processes when they

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have 'bad' memory ranges (as it's the requestor's fault)
This commit is contained in:
Ben Gras 2008-12-11 17:36:33 +00:00
parent ef812af5a6
commit e4e3995fb0
3 changed files with 10 additions and 10 deletions
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2
servers/vm/main.c
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@ -340,9 +340,11 @@ PRIVATE void vm_init(void)
CALLMAP(VM_VFS_REPLY_CLOSE, do_vfs_reply, VFS_PROC_NR);
}
#if 0
void kputc(int c)
{
if(c == '\n')
ser_putc('\r');
ser_putc(c);
}
#endif

7
servers/vm/mmap.c
View File

@ -94,6 +94,7 @@ PUBLIC int do_map_phys(message *m)
struct vmproc *vmp;
endpoint_t target;
struct vir_region *vr;
vir_bytes len;
target = m->VMMP_EP;
if(target == SELF)
@ -107,8 +108,12 @@ PUBLIC int do_map_phys(message *m)
if(!(vmp->vm_flags & VMF_HASPT))
return ENXIO;
len = m->VMMP_LEN;
if(len % VM_PAGE_SIZE)
len += VM_PAGE_SIZE - (len % VM_PAGE_SIZE);
if(!(vr = map_page_region(vmp, arch_vir2map(vmp, vmp->vm_stacktop),
VM_DATATOP, (vir_bytes) m->VMMP_LEN, (vir_bytes)m->VMMP_PHADDR,
VM_DATATOP, len, (vir_bytes)m->VMMP_PHADDR,
VR_DIRECT | VR_NOPF | VR_WRITABLE, 0))) {
return ENOMEM;
}

11
servers/vm/pagefaults.c
View File

@ -159,20 +159,13 @@ PUBLIC void handle_memory(void)
}
if(r != OK) {
printf("VM: SIGSEGV %d, memory range not available\n",
printf("VM: memory range 0x%lx-0x%lx not available in %d\n",
arch_map2vir(vmp, mem), arch_map2vir(vmp, mem+len),
vmp->vm_endpoint);
if((s=sys_kill(vmp->vm_endpoint, SIGSEGV)) != OK)
vm_panic("sys_kill failed", s);
}
if(sys_vmctl(who, VMCTL_MEMREQ_REPLY, r) != OK)
vm_panic("handle_memory: sys_vmctl failed", r);
if(r != OK) {
printf("VM: killing %d\n", vmp->vm_endpoint);
if((s=sys_kill(vmp->vm_endpoint, SIGSEGV)) != OK)
vm_panic("sys_kill failed", s);
}
}
}