On 23.09.20 20:57, Sean Christopherson wrote:
> Swap the order of hardware_enable_all() and kvm_arch_init_vm() to
> accommodate Intel's Trust Domain Extension (TDX), which needs VMX to be
> fully enabled during VM init in order to make SEAMCALLs.
>
> This also provides consistent ordering between kvm_create_vm() and
> kvm_destroy_vm() with respect to calling kvm_arch_destroy_vm() and
> hardware_disable_all().
>
> Cc: Marc Zyngier <m...@kernel.org>
> Cc: James Morse <james.mo...@arm.com>
> Cc: Julien Thierry <julien.thierry.k...@gmail.com>
> Cc: Suzuki K Poulose <suzuki.poul...@arm.com>
> Cc: linux-arm-ker...@lists.infradead.org
> Cc: Huacai Chen <che...@lemote.com>
> Cc: Aleksandar Markovic <aleksandar.qemu.de...@gmail.com>
> Cc: linux-m...@vger.kernel.org
> Cc: Paul Mackerras <pau...@ozlabs.org>
> Cc: kvm-...@vger.kernel.org
> Cc: Christian Borntraeger <borntrae...@de.ibm.com>
> Cc: Janosch Frank <fran...@linux.ibm.com>
> Cc: David Hildenbrand <da...@redhat.com>
> Cc: Cornelia Huck <coh...@redhat.com>
> Cc: Claudio Imbrenda <imbre...@linux.ibm.com>
> Cc: Vitaly Kuznetsov <vkuzn...@redhat.com>
> Cc: Wanpeng Li <wanpen...@tencent.com>
> Cc: Jim Mattson <jmatt...@google.com>
> Cc: Joerg Roedel <j...@8bytes.org>
> Signed-off-by: Sean Christopherson <sean.j.christopher...@intel.com>
> ---
>
> Obviously not required until the TDX series comes along, but IMO KVM
> should be consistent with respect to enabling and disabling virt support
> in hardware.
>
> Tested only on Intel hardware. Unless I missed something, this only
> affects x86, Arm and MIPS as hardware enabling is a nop for s390 and PPC.
Yes, looks fine from an s390 perspective.
Reviewed-by: Christian Borntraeger <borntrae...@de.ibm.com>
