From: Paolo Bonzini <pbonzini@redhat.com>
To: "H. Peter Anvin" <hpa@zytor.com>,
Igor Mammedov <imammedo@redhat.com>,
linux-kernel@vger.kernel.org
Cc: gleb@kernel.org, tglx@linutronix.de, mingo@redhat.com,
x86@kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions
Date: Tue, 18 Mar 2014 13:11:47 +0100 [thread overview]
Message-ID: <53283803.5010209@redhat.com> (raw)
In-Reply-To: <53273309.8060103@zytor.com>
Il 17/03/2014 18:38, H. Peter Anvin ha scritto:
> I'm not sure what you mean with "valid real mode selectors"; the normal
> case in big real mode is that either CS = SS = 0 or CS = SS = <some
> program base address>.
I mean "valid according to the VMX spec" for running in vm86 mode: base
= selector << 4, limit = 0xffff, access rights = 0xf3.
If a segment does not follow the rules, but CS does, we could run the
guest normally and trap memory accesses to KVM.
Paolo
next prev parent reply other threads:[~2014-03-18 12:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-15 20:01 [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions Igor Mammedov
2014-03-15 20:01 ` [PATCH 1/2] KVM: x86 emulator: emulate MOVAPS Igor Mammedov
2014-03-15 20:02 ` [PATCH 2/2] KVM: x86 emulator: emulate MOVAPD Igor Mammedov
2014-03-15 22:39 ` [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions H. Peter Anvin
2014-03-17 11:19 ` Paolo Bonzini
2014-03-15 22:42 ` H. Peter Anvin
2014-03-17 9:30 ` Paolo Bonzini
2014-03-17 15:16 ` H. Peter Anvin
2014-03-17 17:01 ` Paolo Bonzini
2014-03-17 17:38 ` H. Peter Anvin
2014-03-18 12:11 ` Paolo Bonzini [this message]
2014-03-17 11:18 ` Paolo Bonzini
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