kvm/s390x/memop.c

49 	void *old;
87 			ksmo.old_addr = (uint64_t)desc->old;
88 			memcpy(desc->old_value, desc->old, desc->size);
183 			int diff = memcmp(desc->old_value, desc->old, desc->size);
224 #define CMPXCHG_OLD(o) .old = (o)
328 			uint8_t __aligned(16) old[16];
334 			memcpy(&old, mem1, 16);
337 			    CMPXCHG_OLD(old + offset),
345 			memcpy(&old, mem1, 16);
347 			old[offset]++;
350 			    CMPXCHG_OLD(old + offset),
356 			ASSERT_MEM_EQ(&old, mem1, 16);
544 static __uint128_t permutate_bits(bool guest, int i, int size, __uint128_t old)
565 			return old;
566 		new = rotate(16, old, i * 8);
581 	return rotate(size, old, amount);
590 			uint32_t old = *old_addr;
592 			asm volatile ("cs %[old],%[new],%[address]"
593 			    : [old] "+d" (old),
598 			ret = old == (uint32_t)*old_addr;
599 			*old_addr = old;
603 			uint64_t old = *old_addr;
605 			asm volatile ("csg %[old],%[new],%[address]"
606 			    : [old] "+d" (old),
611 			ret = old == (uint64_t)*old_addr;
612 			*old_addr = old;
616 			__uint128_t old = *old_addr;
618 			asm volatile ("cdsg %[old],%[new],%[address]"
619 			    : [old] "+d" (old),
624 			ret = old == *old_addr;
625 			*old_addr = old;
638 	__uint128_t old, new;
646 			old = 1;
647 		} while (!_cmpxchg(16, mem1, &old, 0));
651 				new = permutate_bits(true, i + j, size, old);
652 			} while (!_cmpxchg(size, mem2 + offset, &old, new));
676 	__uint128_t old, new;
687 			old = 0;
691 			    CMPXCHG_OLD(&old),
697 				new = permutate_bits(false, i + j, size, old);
700 				    CMPXCHG_OLD(quad_to_char(&old, size)),
804 		__uint128_t old = 0;
807 			     CMPXCHG_OLD(&old), KEY(2));
1051 	__uint128_t old;
1062 			     CMPXCHG_OLD(&old));
1068 			     CMPXCHG_OLD(&old));
1073 			     CMPXCHG_OLD(&old));