x86/kvm/vmx: Add MDS protection when L1D Flush is not active

CPUs which are affected by L1TF and MDS mitigate MDS with the L1D Flush on
VMENTER when updated microcode is installed.

If a CPU is not affected by L1TF or if the L1D Flush is not in use, then
MDS mitigation needs to be invoked explicitly.

For these cases, follow the host mitigation state and invoke the MDS
mitigation before VMENTER.

Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Greg Kroah-Hartman <[email protected]>
Reviewed-by: Frederic Weisbecker <[email protected]>
Reviewed-by: Borislav Petkov <[email protected]>
Reviewed-by: Jon Masters <[email protected]>
Tested-by: Jon Masters <[email protected]>

0 files changed, 0 insertions, 0 deletions