So that there will be a verbal string returned when kvm not enabled, or kvm not compiled.
Signed-off-by: Peter Xu <[email protected]> --- accel/kvm/kvm-all.c | 5 +++++ accel/stubs/kvm-stub.c | 1 + 2 files changed, 6 insertions(+) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 68d57c1af0..c32fbcf9cc 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -4492,6 +4492,11 @@ int kvm_create_guest_memfd(uint64_t size, uint64_t flags, Error **errp) .flags = flags, }; + if (!kvm_enabled()) { + error_setg(errp, "guest-memfd requires KVM accelerator"); + return -1; + } + if (!kvm_guest_memfd_supported) { error_setg(errp, "KVM does not support guest_memfd"); return -1; diff --git a/accel/stubs/kvm-stub.c b/accel/stubs/kvm-stub.c index 73f04eb589..01b1d6285e 100644 --- a/accel/stubs/kvm-stub.c +++ b/accel/stubs/kvm-stub.c @@ -123,6 +123,7 @@ bool kvm_hwpoisoned_mem(void) int kvm_create_guest_memfd(uint64_t size, uint64_t flags, Error **errp) { + error_setg(errp, "KVM is not enabled"); return -ENOSYS; } -- 2.50.1
