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-rw-r--r--kvm-all.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/kvm-all.c b/kvm-all.c
index 2a717e5b50..3f7061a180 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1544,8 +1544,17 @@ static int kvm_init(MachineState *ms)
strerror(-ret));
#ifdef TARGET_S390X
- fprintf(stderr, "Please add the 'switch_amode' kernel parameter to "
- "your host kernel command line\n");
+ if (ret == -EINVAL) {
+ fprintf(stderr,
+ "Host kernel setup problem detected. Please verify:\n");
+ fprintf(stderr, "- for kernels supporting the switch_amode or"
+ " user_mode parameters, whether\n");
+ fprintf(stderr,
+ " user space is running in primary address space\n");
+ fprintf(stderr,
+ "- for kernels supporting the vm.allocate_pgste sysctl, "
+ "whether it is enabled\n");
+ }
#endif
goto err;
}