On 29/08/2019 14.21, Janosch Frank wrote: > On 8/29/19 2:14 PM, Thomas Huth wrote: >> Check that we can write and read the guest memory with this s390x >> ioctl, and that some error cases are handled correctly. >> >> Signed-off-by: Thomas Huth <th...@redhat.com> >> --- >> v2: Check the ioctl also with "size" set to 0 >> > [...] >> + >> + /* 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, "ioctl allows 0 as size"); > > Test for errno == -EINVAL?
Assuming that my "Test for bad access register and size at the start of S390_MEM_OP" goes in first, yes, I can add that check. Otherwise, the current kernel still returns ENOMEM. >> + >> + /* 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 all flags?"); > > Wrong report string Oops, stupid copy-n-paste bug ... I'll fix it in v3... Thanks, Thomas
signature.asc
Description: OpenPGP digital signature
