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From: Jim Mattson <jmattson@google.com>
To: Julian Stecklina <jsteckli@amazon.de>
Cc: kvm list <kvm@vger.kernel.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	js@alien8.de, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/4] kvm, vmx: move CR2 context switch out of assembly path
Date: Thu, 25 Oct 2018 10:02:08 -0700	[thread overview]
Message-ID: <CALMp9eQ=+jEabpDqa-a7WP7LVfTjmpW1ymWrVYeSxH4O4XOmyA@mail.gmail.com> (raw)
In-Reply-To: <09986c98c9655f1542768ecfda644ac821e67a57.1540369608.git.jsteckli@amazon.de>

On Wed, Oct 24, 2018 at 1:28 AM, Julian Stecklina <jsteckli@amazon.de> wrote:
> The VM entry/exit path is a giant inline assembly statement. Simplify it
> by doing CR2 context switching in plain C. Move CR2 restore behind IBRS
> clearing, so we reduce the amount of code we execute with IBRS on.
>
> Signed-off-by: Julian Stecklina <jsteckli@amazon.de>
> Reviewed-by: Jan H. Schönherr <jschoenh@amazon.de>
> Reviewed-by: Konrad Jan Miller <kjm@amazon.de>
Reviewed-by: Jim Mattson <jmattson@google.com>

      parent reply	other threads:[~2018-10-25 17:02 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-24  8:28 Julian Stecklina
2018-10-24  8:28 ` [PATCH 2/4] kvm, vmx: move register clearing " Julian Stecklina
2018-10-25 16:55   ` Jim Mattson
2018-10-26 10:31     ` Stecklina, Julian
2018-10-26 15:46   ` Sean Christopherson
2018-10-26 16:30     ` Jim Mattson
2018-10-29 13:47       ` Stecklina, Julian
2018-10-24  8:28 ` [PATCH 3/4] kvm, vmx: fix __invvpid style Julian Stecklina
2018-10-24  8:28 ` [PATCH 4/4] kvm, vmx: remove manually coded vmx instructions Julian Stecklina
2018-10-24 17:44   ` Eric Northup
2018-10-26 10:46     ` Stecklina, Julian
2018-10-26 14:30       ` Sean Christopherson
2018-10-25 17:02 ` Jim Mattson [this message]

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