diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2018-05-11 15:21:01 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-05-17 17:09:16 +0200 |
| commit | 15e6c22fd8e5a42c5ed6d487b7c9fe44c2517765 (patch) | |
| tree | a672809b542f900bddd85d7a3deea581913ebe58 /mm | |
| parent | 5f2b745f5e1304f438f9b2cd03ebc8120b6e0d3b (diff) | |
KVM: SVM: Move spec control call after restore of GS
svm_vcpu_run() invokes x86_spec_ctrl_restore_host() after VMEXIT, but
before the host GS is restored. x86_spec_ctrl_restore_host() uses 'current'
to determine the host SSBD state of the thread. 'current' is GS based, but
host GS is not yet restored and the access causes a triple fault.
Move the call after the host GS restore.
Fixes: 885f82bfbc6f x86/process: Allow runtime control of Speculative Store Bypass
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions