diff options
Diffstat (limited to 'tools/testing/selftests/kvm/s390x/memop.c')
| -rw-r--r-- | tools/testing/selftests/kvm/s390x/memop.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/tools/testing/selftests/kvm/s390x/memop.c b/tools/testing/selftests/kvm/s390x/memop.c deleted file mode 100644 index 9f49ead380ab..000000000000 --- a/tools/testing/selftests/kvm/s390x/memop.c +++ /dev/null @@ -1,166 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Test for s390x KVM_S390_MEM_OP - * - * Copyright (C) 2019, Red Hat, Inc. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/ioctl.h> - -#include "test_util.h" -#include "kvm_util.h" - -#define VCPU_ID 1 - -static uint8_t mem1[65536]; -static uint8_t mem2[65536]; - -static void guest_code(void) -{ - int i; - - for (;;) { - for (i = 0; i < sizeof(mem2); i++) - mem2[i] = mem1[i]; - GUEST_SYNC(0); - } -} - -int main(int argc, char *argv[]) -{ - struct kvm_vm *vm; - struct kvm_run *run; - struct kvm_s390_mem_op ksmo; - int rv, i, maxsize; - - setbuf(stdout, NULL); /* Tell stdout not to buffer its content */ - - maxsize = kvm_check_cap(KVM_CAP_S390_MEM_OP); - if (!maxsize) { - print_skip("CAP_S390_MEM_OP not supported"); - exit(KSFT_SKIP); - } - if (maxsize > sizeof(mem1)) - maxsize = sizeof(mem1); - - /* Create VM */ - vm = vm_create_default(VCPU_ID, 0, guest_code); - run = vcpu_state(vm, VCPU_ID); - - for (i = 0; i < sizeof(mem1); i++) - mem1[i] = i * i + i; - - /* Set the first array */ - ksmo.gaddr = addr_gva2gpa(vm, (uintptr_t)mem1); - ksmo.flags = 0; - ksmo.size = maxsize; - ksmo.op = KVM_S390_MEMOP_LOGICAL_WRITE; - ksmo.buf = (uintptr_t)mem1; - ksmo.ar = 0; - vcpu_ioctl(vm, VCPU_ID, KVM_S390_MEM_OP, &ksmo); - - /* Let the guest code copy the first array to the second */ - vcpu_run(vm, VCPU_ID); - TEST_ASSERT(run->exit_reason == KVM_EXIT_S390_SIEIC, - "Unexpected exit reason: %u (%s)\n", - run->exit_reason, - exit_reason_str(run->exit_reason)); - - memset(mem2, 0xaa, sizeof(mem2)); - - /* Get the second array */ - ksmo.gaddr = (uintptr_t)mem2; - ksmo.flags = 0; - ksmo.size = maxsize; - ksmo.op = KVM_S390_MEMOP_LOGICAL_READ; - ksmo.buf = (uintptr_t)mem2; - ksmo.ar = 0; - vcpu_ioctl(vm, VCPU_ID, KVM_S390_MEM_OP, &ksmo); - - TEST_ASSERT(!memcmp(mem1, mem2, maxsize), - "Memory contents do not match!"); - - /* Check error conditions - first bad size: */ - ksmo.gaddr = (uintptr_t)mem1; - ksmo.flags = 0; - ksmo.size = -1; - ksmo.op = KVM_S390_MEMOP_LOGICAL_WRITE; - ksmo.buf = (uintptr_t)mem1; - ksmo.ar = 0; - rv = _vcpu_ioctl(vm, VCPU_ID, KVM_S390_MEM_OP, &ksmo); - TEST_ASSERT(rv == -1 && errno == E2BIG, "ioctl allows insane sizes"); - - /* Zero size: */ - ksmo.gaddr = (uintptr_t)mem1; - ksmo.flags = 0; - ksmo.size = 0; - ksmo.op = KVM_S390_MEMOP_LOGICAL_WRITE; - ksmo.buf = (uintptr_t)mem1; - ksmo.ar = 0; - rv = _vcpu_ioctl(vm, VCPU_ID, KVM_S390_MEM_OP, &ksmo); - TEST_ASSERT(rv == -1 && (errno == EINVAL || errno == ENOMEM), - "ioctl allows 0 as size"); - - /* Bad flags: */ - ksmo.gaddr = (uintptr_t)mem1; - ksmo.flags = -1; - ksmo.size = maxsize; - ksmo.op = KVM_S390_MEMOP_LOGICAL_WRITE; - ksmo.buf = (uintptr_t)mem1; - ksmo.ar = 0; - rv = _vcpu_ioctl(vm, VCPU_ID, KVM_S390_MEM_OP, &ksmo); - TEST_ASSERT(rv == -1 && errno == EINVAL, "ioctl allows all flags"); - - /* Bad operation: */ - ksmo.gaddr = (uintptr_t)mem1; - ksmo.flags = 0; - ksmo.size = maxsize; - ksmo.op = -1; - ksmo.buf = (uintptr_t)mem1; - ksmo.ar = 0; - rv = _vcpu_ioctl(vm, VCPU_ID, KVM_S390_MEM_OP, &ksmo); - TEST_ASSERT(rv == -1 && errno == EINVAL, "ioctl allows bad operations"); - - /* Bad guest address: */ - ksmo.gaddr = ~0xfffUL; - ksmo.flags = KVM_S390_MEMOP_F_CHECK_ONLY; - ksmo.size = maxsize; - ksmo.op = KVM_S390_MEMOP_LOGICAL_WRITE; - ksmo.buf = (uintptr_t)mem1; - ksmo.ar = 0; - rv = _vcpu_ioctl(vm, VCPU_ID, KVM_S390_MEM_OP, &ksmo); - TEST_ASSERT(rv > 0, "ioctl does not report bad guest memory access"); - - /* Bad host address: */ - ksmo.gaddr = (uintptr_t)mem1; - ksmo.flags = 0; - ksmo.size = maxsize; - ksmo.op = KVM_S390_MEMOP_LOGICAL_WRITE; - ksmo.buf = 0; - ksmo.ar = 0; - rv = _vcpu_ioctl(vm, VCPU_ID, KVM_S390_MEM_OP, &ksmo); - TEST_ASSERT(rv == -1 && errno == EFAULT, - "ioctl does not report bad host memory address"); - - /* Bad access register: */ - run->psw_mask &= ~(3UL << (63 - 17)); - run->psw_mask |= 1UL << (63 - 17); /* Enable AR mode */ - vcpu_run(vm, VCPU_ID); /* To sync new state to SIE block */ - ksmo.gaddr = (uintptr_t)mem1; - ksmo.flags = 0; - ksmo.size = maxsize; - ksmo.op = KVM_S390_MEMOP_LOGICAL_WRITE; - ksmo.buf = (uintptr_t)mem1; - ksmo.ar = 17; - rv = _vcpu_ioctl(vm, VCPU_ID, KVM_S390_MEM_OP, &ksmo); - TEST_ASSERT(rv == -1 && errno == EINVAL, "ioctl allows ARs > 15"); - run->psw_mask &= ~(3UL << (63 - 17)); /* Disable AR mode */ - vcpu_run(vm, VCPU_ID); /* Run to sync new state */ - - kvm_vm_free(vm); - - return 0; -} |