From: Paolo Bonzini <pbonzini@redhat.com>
To: Alok Kataria <akataria@vmware.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>,
kvm@vger.kernel.org, Joerg Roedel <joro@8bytes.org>,
Gleb Natapov <gleb@kernel.org>,
the arch/x86 maintainers <x86@kernel.org>,
jmattson@vmware.com
Subject: Re: [PATCH v2] KVM: Synthesize G bit for all segments.
Date: Fri, 11 Jul 2014 09:09:57 +0200 [thread overview]
Message-ID: <53BF8DC5.8090201@redhat.com> (raw)
In-Reply-To: <1405062495.12694.7.camel@akataria-dtop.eng.vmware.com>
Il 11/07/2014 09:08, Alok Kataria ha scritto:
> + /*
> + * AMD CPUs circa 2014 track the G bit for all segments except CS.
> + * However, the SVM spec states that the G bit is not observed by the
> + * CPU, and some VMware virtual CPUs drop the G bit for all segments.
> + * So let's synthesize a legal G bit for all segments, this helps
> + * running KVM nested. It also helps cross-vendor migration, because
> + * Intel's vmentry has a check on the 'G' bit.
> + */
Good, I updated the patch. I am picking it up.
Paolo
next prev parent reply other threads:[~2014-07-11 7:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-11 7:08 [PATCH v2] KVM: Synthesize G bit for all segments Alok Kataria
2014-07-11 7:09 ` Paolo Bonzini [this message]
-- strict thread matches above, loose matches on Subject: below --
2014-07-07 10:38 [RFC PATCH] " Alok Kataria
2014-07-07 13:04 ` Paolo Bonzini
2014-07-08 4:17 ` [PATCH v2] " Alok Kataria
2014-07-10 8:55 ` Jan Kiszka
2014-07-10 12:27 ` Paolo Bonzini
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