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| author |   Vitaly Kuznetsov <vkuznets@redhat.com> | 2022-09-22 10:39:41 +0200 |
|---|---|---|
| committer |   Sean Christopherson <seanjc@google.com> | 2022-09-28 12:47:20 -0700 |
| commit | 31d3b871f5ee9b195d90b4d14b74a7864209c6e8 (patch) | |
| tree | 328559826fbc4770ef10b1ea23c1273f5a69237b /tools/testing/selftests/kvm | |
| parent | KVM: selftests: Load RAX with -EFAULT before Hyper-V hypercall (diff) | |
| download | linux-dev-31d3b871f5ee9b195d90b4d14b74a7864209c6e8.tar.xz linux-dev-31d3b871f5ee9b195d90b4d14b74a7864209c6e8.zip | |
KVM: selftests: Don't set reserved bits for invalid Hyper-V hypercall number
Bits 27 through 31 in Hyper-V hypercall 'control' are reserved (see
HV_HYPERCALL_RSVD0_MASK) but '0xdeadbeef' includes them. This causes
KVM to return HV_STATUS_INVALID_HYPERCALL_INPUT instead of the expected
HV_STATUS_INVALID_HYPERCALL_CODE.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/all/87fsgjol20.fsf@redhat.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'tools/testing/selftests/kvm')
| -rw-r--r-- | tools/testing/selftests/kvm/x86_64/hyperv_features.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_features.c b/tools/testing/selftests/kvm/x86_64/hyperv_features.c index 4d55e038c2d7..05b32e550a80 100644 --- a/tools/testing/selftests/kvm/x86_64/hyperv_features.c +++ b/tools/testing/selftests/kvm/x86_64/hyperv_features.c @@ -508,7 +508,7 @@ static void guest_test_hcalls_access(void) switch (stage) { case 0: feat->eax |= HV_MSR_HYPERCALL_AVAILABLE; - hcall->control = 0xdeadbeef; + hcall->control = 0xbeef; hcall->expect = HV_STATUS_INVALID_HYPERCALL_CODE; break; |