From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: kvm smm mode support?
Date: Sat, 26 Apr 2014 13:02:42 +0200
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Cc: kevin <kevin@koconnor.net>, Laszlo Ersek <lersek@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>, kvm-devel <kvm@vger.kernel.org>
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Il 26/04/2014 11:40, Paolo Bonzini ha scritto:
> Il 25/04/2014 09:39, Gerd Hoffmann ha scritto:
>> Anyone has plans to add smm support to kvm?
>
> No plans, but it should be a Simple Matter Of Programming...

Well, we need:

- an extra ioctl to inject an SMI (can be modeled after KVM_NMI)

- an extra user exit triggered when SMM is entered or left

- an extra ioctl (or a GET/SET_ONE_REG implementation) to read/write 
whether we are in SMM, used to determine whether the #UD produced by RSM 
should be forwarded to the guest or trigger emulation.

Paolo

> A good start would be to write unit tests for SMM that work with QEMU.
> Too bad we're late, it could have been a nice summer of code project.