From: "Radim Krčmář" <rkrcmar@redhat.com>
To: Joel Schopp <joel.schopp@amd.com>
Cc: Gleb Natapov <gleb@kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
kvm@vger.kernel.org, David Kaplan <David.Kaplan@amd.com>,
Joerg Roedel <joro@8bytes.org>,
Marcelo Tosatti <mtosatti@redhat.com>,
linux-kernel@vger.kernel.org, Borislav Petkov <bp@alien8.de>
Subject: Re: [PATCH] x86: svm: make wbinvd faster
Date: Mon, 2 Mar 2015 15:09:48 +0100 [thread overview]
Message-ID: <20150302140947.GB26739@potion.brq.redhat.com> (raw)
In-Reply-To: <20150228001917.15247.41063.stgit@joelvmguard2.amd.com>
2015-02-27 18:19-0600, Joel Schopp:
> From: David Kaplan <David.Kaplan@amd.com>
> No need to re-decode WBINVD since we know what it is from the intercept.
>
> Signed-off-by: David Kaplan <David.Kaplan@amd.com>
> [extracted from larger unlrelated patch, forward ported, tested]
> Signed-off-by: Joel Schopp <joel.schopp@amd.com>
> ---
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
> diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
> +static int wbinvd_interception(struct vcpu_svm *svm)
> +{
> + kvm_emulate_wbinvd(&svm->vcpu);
> + skip_emulated_instruction(&svm->vcpu);
> + return 1;
> +}
> +
> +
(One line is optimal.)
next prev parent reply other threads:[~2015-03-02 14:10 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-28 0:19 [PATCH] x86: svm: make wbinvd faster Joel Schopp
2015-03-02 2:29 ` Bandan Das
2015-03-02 13:59 ` Radim Krčmář
2015-03-02 15:25 ` Bandan Das
2015-03-02 16:03 ` Radim Krčmář
2015-03-02 16:58 ` Joel Schopp
2015-03-02 14:09 ` Radim Krčmář [this message]
2015-03-09 23:28 ` Marcelo Tosatti
2015-03-10 11:01 ` Radim Krčmář
2015-03-10 22:37 ` Marcelo Tosatti
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