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author | Sean Christopherson <seanjc@google.com> | 2022-01-25 23:17:25 +0100 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-01-26 18:15:04 +0100 |
commit | 4cf3d3ebe8794c449af3e0e8c1d790c97e461d20 (patch) | |
tree | 6337299fa0756707ca67565b03caee1c84e2e394 /drivers/Makefile | |
parent | KVM: x86: Check .flags in kvm_cpuid_check_equal() too (diff) | |
download | linux-4cf3d3ebe8794c449af3e0e8c1d790c97e461d20.tar.xz linux-4cf3d3ebe8794c449af3e0e8c1d790c97e461d20.zip |
KVM: selftests: Don't skip L2's VMCALL in SMM test for SVM guest
Don't skip the vmcall() in l2_guest_code() prior to re-entering L2, doing
so will result in L2 running to completion, popping '0' off the stack for
RET, jumping to address '0', and ultimately dying with a triple fault
shutdown.
It's not at all obvious why the test re-enters L2 and re-executes VMCALL,
but presumably it serves a purpose. The VMX path doesn't skip vmcall(),
and the test can't possibly have passed on SVM, so just do what VMX does.
Fixes: d951b2210c1a ("KVM: selftests: smm_test: Test SMM enter from L2")
Cc: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220125221725.2101126-1-seanjc@google.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Tested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'drivers/Makefile')
0 files changed, 0 insertions, 0 deletions