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| author | Thomas Huth <thuth@redhat.com> | 2016-02-18 22:01:56 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2016-02-25 13:58:44 +1100 |
| commit | 388e47c75be411979c420abbc76a250597f4ea94 (patch) | |
| tree | 072c94ed27257033a7834c2ba9ea216bea669f8a /target-ppc/kvm.c | |
| parent | 072ed5f260865c8aac8c7cc0f23353b8d5753580 (diff) | |
| download | qemu-388e47c75be411979c420abbc76a250597f4ea94.tar.gz qemu-388e47c75be411979c420abbc76a250597f4ea94.tar.bz2 qemu-388e47c75be411979c420abbc76a250597f4ea94.zip | |
ppc/kvm: Tell the user what might be wrong when using bad CPU types with kvm-hv
Using a CPU type that does not match the host is not possible when using
the kvm-hv kernel module - the PVR is checked in the kernel function
kvm_arch_vcpu_ioctl_set_sregs_hv() and rejected with -EINVAL if it
does not match the host.
However, when the user tries to specify a non-matching CPU type, QEMU
currently only reports "kvm_init_vcpu failed: Invalid argument", and
this is of course not very helpful for the user to solve the problem.
So this patch adds a more descriptive error message that tells the
user to specify "-cpu host" instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
[Removed melodramatic '!' :)]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target-ppc/kvm.c')
| -rw-r--r-- | target-ppc/kvm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c index 762d6cf3c9..d67c169ba3 100644 --- a/target-ppc/kvm.c +++ b/target-ppc/kvm.c @@ -513,6 +513,10 @@ int kvm_arch_init_vcpu(CPUState *cs) /* Synchronize sregs with kvm */ ret = kvm_arch_sync_sregs(cpu); if (ret) { + if (ret == -EINVAL) { + error_report("Register sync failed... If you're using kvm-hv.ko," + " only \"-cpu host\" is possible"); + } return ret; } |