kvm/svm: disable KCSAN for svm_vcpu_run()
authorQian Cai <cai@lca.pw>
Wed, 15 Apr 2020 15:37:09 +0000 (11:37 -0400)
committerPaolo Bonzini <pbonzini@redhat.com>
Mon, 15 Jun 2020 13:32:58 +0000 (09:32 -0400)
commitb95273f1272398a9f7145de37703f1930244e465
tree2c5cb622daab79fa294d07bf63d1143fb3a0f126
parent0ae705f3d2b22d9d762f67fd49aa6c290987c6a3
kvm/svm: disable KCSAN for svm_vcpu_run()

For some reasons, running a simple qemu-kvm command with KCSAN will
reset AMD hosts. It turns out svm_vcpu_run() could not be instrumented.
Disable it for now.

 # /usr/libexec/qemu-kvm -name ubuntu-18.04-server-cloudimg -cpu host
-smp 2 -m 2G -hda ubuntu-18.04-server-cloudimg.qcow2

=== console output ===
Kernel 5.6.0-next-20200408+ on an x86_64

hp-dl385g10-05 login:

<...host reset...>

HPE ProLiant System BIOS A40 v1.20 (03/09/2018)
(C) Copyright 1982-2018 Hewlett Packard Enterprise Development LP
Early system initialization, please wait...

Signed-off-by: Qian Cai <cai@lca.pw>
Message-Id: <20200415153709.1559-1-cai@lca.pw>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/svm/svm.c