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Merge branch 'master' of postpeta.pccluster.org:mckernel

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This commit is contained in:
Naoki Hamada
2014-09-05 17:20:50 +09:00
parent 95781d59e3 15c9ae4c8d
commit efc817de92
10 changed files with 363 additions and 142 deletions
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2
executer/kernel/control.c
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@@ -284,7 +284,7 @@ static long mcexec_send_signal(ihk_os_t os, struct signal_desc *sigparam)
isp.pid = sig.pid;
isp.arg = (long)sig.tid << 32 | (sig.sig & 0x00000000ffffffffL);
mcctrl_ikc_send(os, 0, &isp);
mcctrl_ikc_send(os, sig.cpu, &isp);
return 0;
}

41
executer/kernel/syscall.c
View File

@@ -405,6 +405,25 @@ static int rus_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
pfn = phys >> PAGE_SHIFT;
#if USE_VM_INSERT_PFN
for (pix = 0; pix < (pgsize / PAGE_SIZE); ++pix) {
struct page *page;
if (pfn_valid(pfn+pix)) {
page = pfn_to_page(pfn+pix);
if (!page_count(page)) {
get_page(page);
/*
* TODO:
* The pages which get_page() has been called with
* should be recorded. Because these pages have to
* be passed to put_page() before they are freed.
*/
}
error = vm_insert_page(vma, rva+(pix*PAGE_SIZE), page);
if (error) {
printk("vm_insert_page: %d\n", error);
}
}
else
error = vm_insert_pfn(vma, rva+(pix*PAGE_SIZE), pfn+pix);
if (error) {
break;
@@ -429,7 +448,7 @@ static struct vm_operations_struct rus_vmops = {
static int rus_mmap(struct file *file, struct vm_area_struct *vma)
{
vma->vm_flags |= VM_IO | VM_RESERVED | VM_DONTEXPAND | VM_PFNMAP;
vma->vm_flags |= VM_RESERVED | VM_DONTEXPAND | VM_MIXEDMAP;
vma->vm_ops = &rus_vmops;
return 0;
}
@@ -1125,13 +1144,16 @@ out:
return (IS_ERR_VALUE(map))? (int)map: 0;
}
static void clear_pte_range(uintptr_t start, uintptr_t len)
static int clear_pte_range(uintptr_t start, uintptr_t len)
{
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
uintptr_t addr;
uintptr_t end;
int error;
int ret;
ret = 0;
down_read(&mm->mmap_sem);
addr = start;
while (addr < (start + len)) {
@@ -1148,14 +1170,15 @@ static void clear_pte_range(uintptr_t start, uintptr_t len)
end = vma->vm_end;
}
if (addr < end) {
zap_vma_ptes(vma, addr, end-addr);
dprintk("clear_pte_range() 0x%lx - 0x%lx OK\n",
vma->vm_start, vma->vm_end);
error = zap_vma_ptes(vma, addr, end-addr);
if (ret == 0) {
ret = error;
}
}
addr = end;
}
up_read(&mm->mmap_sem);
return;
return ret;
}
/**
@@ -1293,7 +1316,11 @@ int __do_in_kernel_syscall(ihk_os_t os, struct mcctrl_channel *c, struct syscall
ppd->pid, ppd->rpgtable);
}
clear_pte_range(sc->args[0], sc->args[1]);
error = clear_pte_range(sc->args[0], sc->args[1]);
if (error) {
error = -ENOSYS;
goto out;
}
ret = 0;
break;