From: Scott Wood <scottwood@freescale•com>
To: Tiejun Chen <tiejun.chen@windriver•com>
Cc: linuxppc-dev@lists•ozlabs.org, agraf@suse•de,
kvm-ppc@vger•kernel.org, kvm@vger•kernel.org
Subject: Re: [v1][KVM][PATCH 1/1] kvm:ppc:booehv: direct ISI exception to Guest
Date: Tue, 7 May 2013 18:40:43 -0500 [thread overview]
Message-ID: <1367970043.3398.39@snotra> (raw)
In-Reply-To: <1367924791-24394-1-git-send-email-tiejun.chen@windriver.com> (from tiejun.chen@windriver.com on Tue May 7 06:06:30 2013)
On 05/07/2013 06:06:30 AM, Tiejun Chen wrote:
> We also can direct ISI exception to Guest like DSI.
>=20
> Signed-off-by: Tiejun Chen <tiejun.chen@windriver•com>
> ---
> arch/powerpc/kvm/booke_emulate.c | 3 +++
> arch/powerpc/kvm/e500mc.c | 3 ++-
> 2 files changed, 5 insertions(+), 1 deletion(-)
Are you seeing a real performance improvement from this? This will =20
interfere somewhat with using the VF bit, if we were to ever do so, =20
since VF only affects data accesses (and so the guest would see an ISI =20
storm rather than a machine check if it tries to execute from such an =20
address).
-Scott=
next prev parent reply other threads:[~2013-05-07 23:40 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-07 11:06 [v1][KVM][PATCH 1/1] kvm:ppc:booehv: direct ISI exception to Guest Tiejun Chen
2013-05-07 23:40 ` Scott Wood [this message]
2013-05-08 1:53 ` tiejun.chen
2013-05-08 9:20 ` Caraman Mihai Claudiu-B02008
2013-05-08 9:28 ` tiejun.chen
2013-05-09 10:23 ` tiejun.chen
2013-05-09 11:34 ` Caraman Mihai Claudiu-B02008
2013-05-09 11:40 ` tiejun.chen
2013-05-09 12:36 ` Caraman Mihai Claudiu-B02008
2013-05-10 17:57 ` Alexander Graf
2013-05-10 19:22 ` Scott Wood
2013-05-10 19:39 ` Alexander Graf
2013-05-13 2:04 ` tiejun.chen
2013-05-08 19:09 ` Scott Wood
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