tree 27c26ca5aa91413a5b5e19f8f0239c4fb9396ea3
parent 3f44c1a3c29379aa976be27df1da0fc4b9e7c364
author Tom Lendacky <thomas.lendacky@amd.com> 1525982799 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1527008047 +0200

KVM: SVM: Implement VIRT_SPEC_CTRL support for SSBD

commit bc226f07dcd3c9ef0b7f6236fe356ea4a9cb4769 upstream

Expose the new virtualized architectural mechanism, VIRT_SSBD, for using
speculative store bypass disable (SSBD) under SVM.  This will allow guests
to use SSBD on hardware that uses non-architectural mechanisms for enabling
SSBD.

[ tglx: Folded the migration fixup from Paolo Bonzini ]

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>