https://github.com/torvalds/linux
Revision 129c48cde6c9e519d033305649665427c6cac494 authored by Paolo Bonzini on 30 November 2022, 18:11:47 UTC, committed by Paolo Bonzini on 28 December 2022, 12:18:01 UTC
Commit 8fda37cf3d41 ("KVM: selftests: Stuff RAX/RCX with 'safe' values
in vmmcall()/vmcall()", 2022-11-21) broke the svm_nested_soft_inject_test
because it placed a "pop rbp" instruction after vmmcall.  While this is
correct and mimics what is done in the VMX case, this particular test
expects a ud2 instruction right after the vmmcall, so that it can skip
over it in the L1 part of the test.

Inline a suitably-modified version of vmmcall() to restore the
functionality of the test.

Fixes: 8fda37cf3d41 ("KVM: selftests: Stuff RAX/RCX with 'safe' values in vmmcall()/vmcall()"
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20221130181147.9911-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 parent 02d9a04
History
Tip revision: 129c48cde6c9e519d033305649665427c6cac494 authored by Paolo Bonzini on 30 November 2022, 18:11:47 UTC
KVM: selftests: restore special vmmcall code layout needed by the harness
Tip revision: 129c48c
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