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add VMA_USER to specify regions, which are mapped into the user space

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This commit is contained in:
Stefan Lankes 2015-07-11 09:54:04 +02:00
parent 07fd81de35
commit 6213310d7b
1 changed files with 4 additions and 2 deletions
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6
hermit/arch/x86/kernel/tasks.c
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@ -210,7 +210,7 @@ static int load_task(load_args_t* largs)
file->offset = prog_header.offset;
read_fs(file, (uint8_t*)prog_header.virt_addr, prog_header.file_size);
flags = VMA_CACHEABLE;
flags = VMA_CACHEABLE|VMA_USER;
if (prog_header.flags & PF_R)
flags |= VMA_READ;
if (prog_header.flags & PF_W)
@ -242,7 +242,7 @@ static int load_task(load_args_t* largs)
memset((void*) stack, 0x00, npages*PAGE_SIZE);
// create vma regions for the user-level stack
flags = VMA_CACHEABLE;
flags = VMA_CACHEABLE|VMA_USER;
if (prog_header.flags & PF_R)
flags |= VMA_READ;
if (prog_header.flags & PF_W)
@ -320,6 +320,8 @@ static int load_task(load_args_t* largs)
// clear fpu state => currently not supported
curr_task->flags &= ~(TASK_FPU_USED|TASK_FPU_INIT);
//vma_dump();
jump_to_user_code(header.entry, stack+offset);
return 0;