From: Paolo Bonzini <pbonzini@redhat.com>
To: Hebbal Yacine <y_hebbal@esi.dz>
Cc: kvm@vger.kernel.org
Subject: Re: [Question] Switching VCPU CPL from the hypervisor ?
Date: Wed, 16 Dec 2015 18:48:38 +0100 [thread overview]
Message-ID: <5671A3F6.5060207@redhat.com> (raw)
In-Reply-To: <CACEoar5vk6mzeWYwcDsBFVxYfcYm3fyBufwA+BM1ZvP3PL5aVw@mail.gmail.com>
On 15/12/2015 18:02, Hebbal Yacine wrote:
> What I want to do is: when a controlled process is in user mode, i
> change its cpl to 0, force it to execute a code that is injected in the
> VM, set back its cpl to 3 and let it run like if nothing happened
Could you inject an SMI and place your code in the guest firmware's SMM
handler? What input is needed by this CPL=0 code?
Paolo
next prev parent reply other threads:[~2015-12-16 17:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-15 16:20 [Question] Switching VCPU CPL from the hypervisor ? Yacine HEBBAL
2015-12-15 16:53 ` Paolo Bonzini
2015-12-15 17:12 ` Yacine HEBBAL
[not found] ` <CACEoar5vk6mzeWYwcDsBFVxYfcYm3fyBufwA+BM1ZvP3PL5aVw@mail.gmail.com>
2015-12-16 17:48 ` Paolo Bonzini [this message]
2015-12-17 15:58 ` Yacine HEBBAL
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