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add parameters to arch_vrflag_to_ptattr()

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for other architectures and future use
refs #18
This commit is contained in:
NAKAMURA Gou
2014-05-07 20:42:27 +09:00
parent 769cf79bf8
commit 99dec9b805
3 changed files with 23 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
arch/x86/kernel/memory.c
View File

@@ -1617,11 +1617,17 @@ out:
return error;
}
enum ihk_mc_pt_attribute arch_vrflag_to_ptattr(unsigned long flag)
enum ihk_mc_pt_attribute arch_vrflag_to_ptattr(unsigned long flag, uint64_t fault, pte_t *ptep)
{
enum ihk_mc_pt_attribute attr;
attr = common_vrflag_to_ptattr(flag);
attr = common_vrflag_to_ptattr(flag, fault, ptep);
if ((fault & PF_PROT)
|| ((fault & PF_POPULATE) && (flag & VR_PRIVATE))) {
attr |= PTATTR_DIRTY;
}
return attr;
}

4
kernel/include/process.h
View File

@@ -247,8 +247,8 @@ int init_process_stack(struct process *process, struct program_load_desc *pn,
unsigned long extend_process_region(struct process *proc,
unsigned long start, unsigned long end,
unsigned long address, unsigned long flag);
extern enum ihk_mc_pt_attribute arch_vrflag_to_ptattr(unsigned long flag);
enum ihk_mc_pt_attribute common_vrflag_to_ptattr(unsigned long flag);
extern enum ihk_mc_pt_attribute arch_vrflag_to_ptattr(unsigned long flag, uint64_t fault, pte_t *ptep);
enum ihk_mc_pt_attribute common_vrflag_to_ptattr(unsigned long flag, uint64_t fault, pte_t *ptep);
void schedule(void);
void runq_add_proc(struct process *proc, int cpu_id);

27
kernel/process.c
View File

@@ -380,7 +380,7 @@ static int copy_user_ranges(struct process *proc, struct process *org)
dkprintf("copy_user_ranges(): memcpy OK\n", pgsize);
/* Set up new PTE */
attr = arch_vrflag_to_ptattr(range->flag);
attr = arch_vrflag_to_ptattr(range->flag, PF_POPULATE, NULL);
if (ihk_mc_pt_set_range(proc->vm->page_table, vaddr,
vaddr + pgsize, virt_to_phys(pg_vaddr), attr)) {
kprintf("ERROR: copy_user_ranges() "
@@ -749,7 +749,7 @@ static void insert_vm_range_list(struct process_vm *vm, struct vm_range *newrang
return;
}
enum ihk_mc_pt_attribute common_vrflag_to_ptattr(unsigned long flag)
enum ihk_mc_pt_attribute common_vrflag_to_ptattr(unsigned long flag, uint64_t fault, pte_t *ptep)
{
enum ihk_mc_pt_attribute attr;
@@ -943,8 +943,8 @@ int change_prot_process_memory_range(struct process *proc,
goto out;
}
oldattr = arch_vrflag_to_ptattr(range->flag);
newattr = arch_vrflag_to_ptattr(newflag);
oldattr = arch_vrflag_to_ptattr(range->flag, PF_POPULATE, NULL);
newattr = arch_vrflag_to_ptattr(newflag, PF_POPULATE, NULL);
clrattr = oldattr & ~newattr;
setattr = newattr & ~oldattr;
@@ -985,7 +985,7 @@ out:
}
static int page_fault_process_memory_range(struct process_vm *vm,
struct vm_range *range, uintptr_t fault_addr)
struct vm_range *range, uintptr_t fault_addr, uint64_t reason)
{
int error;
int npages;
@@ -1111,7 +1111,7 @@ static int page_fault_process_memory_range(struct process_vm *vm,
}
/* (5) mapping */
attr = arch_vrflag_to_ptattr(range->flag);
attr = arch_vrflag_to_ptattr(range->flag, reason, ptep);
if (range->memobj && (range->flag & VR_PRIVATE) && (range->flag & VR_PROT_WRITE)) {
/* for copy-on-write */
attr &= ~PTATTR_WRITABLE;
@@ -1168,7 +1168,7 @@ out:
return error;
}
static int protection_fault_process_memory_range(struct process_vm *vm, struct vm_range *range, uintptr_t fault_addr)
static int protection_fault_process_memory_range(struct process_vm *vm, struct vm_range *range, uintptr_t fault_addr, uint64_t reason)
{
int error;
pte_t *ptep;
@@ -1237,8 +1237,7 @@ static int protection_fault_process_memory_range(struct process_vm *vm, struct v
page_map(phys_to_page(newpa));
}
attr = arch_vrflag_to_ptattr(range->flag);
attr |= PTATTR_DIRTY;
attr = arch_vrflag_to_ptattr(range->flag, reason, ptep);
error = ihk_mc_pt_set_pte(vm->page_table, ptep, pgsize, newpa, attr);
if (error) {
kprintf("protection_fault_process_memory_range"
@@ -1298,7 +1297,7 @@ static int do_page_fault_process(struct process *proc, void *fault_addr0, uint64
}
if (reason & PF_PROT) {
error = protection_fault_process_memory_range(vm, range, fault_addr);
error = protection_fault_process_memory_range(vm, range, fault_addr, reason);
if (error) {
kprintf("[%d]do_page_fault_process(%p,%lx,%lx):"
"protection range failed. %d\n",
@@ -1319,7 +1318,7 @@ static int do_page_fault_process(struct process *proc, void *fault_addr0, uint64
ihk_mc_spinlock_unlock_noirq(&vm->page_table_lock);
if (!ptep || pte_is_null(ptep)) {
error = page_fault_process_memory_range(vm, range, fault_addr);
error = page_fault_process_memory_range(vm, range, fault_addr, reason);
if (error == -ERESTART) {
goto out;
}
@@ -1332,7 +1331,7 @@ static int do_page_fault_process(struct process *proc, void *fault_addr0, uint64
}
}
else if (!pte_is_writable(ptep) && (range->flag & VR_PROT_WRITE)) {
error = protection_fault_process_memory_range(vm, range, fault_addr);
error = protection_fault_process_memory_range(vm, range, fault_addr, reason);
if (error) {
kprintf("[%d]do_page_fault_process(%p,%lx,%lx):"
"protection range failed. %d\n",
@@ -1343,7 +1342,7 @@ static int do_page_fault_process(struct process *proc, void *fault_addr0, uint64
}
}
else {
error = page_fault_process_memory_range(vm, range, fault_addr);
error = page_fault_process_memory_range(vm, range, fault_addr, reason);
if (error == -ERESTART) {
goto out;
}
@@ -1433,7 +1432,7 @@ int init_process_stack(struct process *process, struct program_load_desc *pn,
error = ihk_mc_pt_set_range(process->vm->page_table,
(void *)(end-minsz), (void *)end,
virt_to_phys(stack),
arch_vrflag_to_ptattr(vrflag));
arch_vrflag_to_ptattr(vrflag, PF_POPULATE, NULL));
if (error) {
kprintf("init_process_stack:"
"set range %lx-%lx %lx failed. %d\n",