* psw and gprs are stored on the stack
*/
tmp = *(addr_t *)((addr_t) &task_pt_regs(child)->psw + addr);
- if (addr == (addr_t) &dummy->regs.psw.mask)
+ if (addr == (addr_t) &dummy->regs.psw.mask) {
/* Return a clean psw mask. */
- tmp = psw_user_bits | (tmp & PSW_MASK_USER);
+ tmp &= PSW_MASK_USER | PSW_MASK_RI;
+ tmp |= PSW_USER_BITS;
+ }
} else if (addr < (addr_t) &dummy->regs.orig_gpr2) {
/*
offset = addr - (addr_t) &dummy->regs.fp_regs;
tmp = *(addr_t *)((addr_t) &child->thread.fp_regs + offset);
if (addr == (addr_t) &dummy->regs.fp_regs.fpc)
- tmp &= (unsigned long) FPC_VALID_MASK
- << (BITS_PER_LONG - 32);
+ tmp <<= BITS_PER_LONG - 32;
} else if (addr < (addr_t) (&dummy->regs.per_info + 1)) {
/*
/*
* psw and gprs are stored on the stack
*/
- if (addr == (addr_t) &dummy->regs.psw.mask &&
- ((data & ~PSW_MASK_USER) != psw_user_bits ||
- ((data & PSW_MASK_EA) && !(data & PSW_MASK_BA))))
- /* Invalid psw mask. */
- return -EINVAL;
+ if (addr == (addr_t) &dummy->regs.psw.mask) {
+ unsigned long mask = PSW_MASK_USER;
+
+ mask |= is_ri_task(child) ? PSW_MASK_RI : 0;
+ if ((data & ~mask) != PSW_USER_BITS)
+ return -EINVAL;
+ if ((data & PSW_MASK_EA) && !(data & PSW_MASK_BA))
+ return -EINVAL;
+ }
*(addr_t *)((addr_t) &task_pt_regs(child)->psw + addr) = data;
} else if (addr < (addr_t) (&dummy->regs.orig_gpr2)) {
/*
* floating point regs. are stored in the thread structure
*/
- if (addr == (addr_t) &dummy->regs.fp_regs.fpc &&
- (data & ~((unsigned long) FPC_VALID_MASK
- << (BITS_PER_LONG - 32))) != 0)
- return -EINVAL;
+ if (addr == (addr_t) &dummy->regs.fp_regs.fpc)
+ if ((unsigned int) data != 0 ||
+ test_fp_ctl(data >> (BITS_PER_LONG - 32)))
+ return -EINVAL;
offset = addr - (addr_t) &dummy->regs.fp_regs;
*(addr_t *)((addr_t) &child->thread.fp_regs + offset) = data;
if (addr == (addr_t) &dummy32->regs.psw.mask) {
/* Fake a 31 bit psw mask. */
tmp = (__u32)(regs->psw.mask >> 32);
- tmp = psw32_user_bits | (tmp & PSW32_MASK_USER);
+ tmp &= PSW32_MASK_USER | PSW32_MASK_RI;
+ tmp |= PSW32_USER_BITS;
} else if (addr == (addr_t) &dummy32->regs.psw.addr) {
/* Fake a 31 bit psw address. */
tmp = (__u32) regs->psw.addr |
* psw, gprs, acrs and orig_gpr2 are stored on the stack
*/
if (addr == (addr_t) &dummy32->regs.psw.mask) {
+ __u32 mask = PSW32_MASK_USER;
+
+ mask |= is_ri_task(child) ? PSW32_MASK_RI : 0;
/* Build a 64 bit psw mask from 31 bit mask. */
- if ((tmp & ~PSW32_MASK_USER) != psw32_user_bits)
+ if ((tmp & ~mask) != PSW32_USER_BITS)
/* Invalid psw mask. */
return -EINVAL;
regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
(regs->psw.mask & PSW_MASK_BA) |
- (__u64)(tmp & PSW32_MASK_USER) << 32;
+ (__u64)(tmp & mask) << 32;
} else if (addr == (addr_t) &dummy32->regs.psw.addr) {
/* Build a 64 bit psw address from 31 bit address. */
regs->psw.addr = (__u64) tmp & PSW32_ADDR_INSN;
* floating point regs. are stored in the thread structure
*/
if (addr == (addr_t) &dummy32->regs.fp_regs.fpc &&
- (tmp & ~FPC_VALID_MASK) != 0)
- /* Invalid floating point control. */
+ test_fp_ctl(tmp))
return -EINVAL;
offset = addr - (addr_t) &dummy32->regs.fp_regs;
*(__u32 *)((addr_t) &child->thread.fp_regs + offset) = tmp;
const struct user_regset *regset, unsigned int pos,
unsigned int count, void *kbuf, void __user *ubuf)
{
- if (target == current)
- save_fp_regs(&target->thread.fp_regs);
+ if (target == current) {
+ save_fp_ctl(&target->thread.fp_regs.fpc);
+ save_fp_regs(target->thread.fp_regs.fprs);
+ }
return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
&target->thread.fp_regs, 0, -1);
{
int rc = 0;
- if (target == current)
- save_fp_regs(&target->thread.fp_regs);
+ if (target == current) {
+ save_fp_ctl(&target->thread.fp_regs.fpc);
+ save_fp_regs(target->thread.fp_regs.fprs);
+ }
/* If setting FPC, must validate it first. */
if (count > 0 && pos < offsetof(s390_fp_regs, fprs)) {
- u32 fpc[2] = { target->thread.fp_regs.fpc, 0 };
- rc = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &fpc,
+ u32 ufpc[2] = { target->thread.fp_regs.fpc, 0 };
+ rc = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &ufpc,
0, offsetof(s390_fp_regs, fprs));
if (rc)
return rc;
- if ((fpc[0] & ~FPC_VALID_MASK) != 0 || fpc[1] != 0)
+ if (ufpc[1] != 0 || test_fp_ctl(ufpc[0]))
return -EINVAL;
- target->thread.fp_regs.fpc = fpc[0];
+ target->thread.fp_regs.fpc = ufpc[0];
}
if (rc == 0 && count > 0)
target->thread.fp_regs.fprs,
offsetof(s390_fp_regs, fprs), -1);
- if (rc == 0 && target == current)
- restore_fp_regs(&target->thread.fp_regs);
+ if (rc == 0 && target == current) {
+ restore_fp_ctl(&target->thread.fp_regs.fpc);
+ restore_fp_regs(target->thread.fp_regs.fprs);
+ }
return rc;
}