From: gengdongjiu <gengdongjiu@huawei.com>
To: Vladimir Murzin <vladimir.murzin@arm.com>,
Marc Zyngier <marc.zyngier@arm.com>,
"christoffer.dall@linaro.org" <christoffer.dall@linaro.org>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"rkrcmar@redhat.com" <rkrcmar@redhat.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"kvmarm@lists.cs.columbia.edu" <kvmarm@lists.cs.columbia.edu>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"suzuki.poulose@arm.com" <suzuki.poulose@arm.com>,
<mark.rutland@arm.com>, <catalin.marinas@arm.com>
Cc: James Morse <James.Morse@arm.com>, <zhanghaibin7@huawei.com>,
Huangshaoyu <huangshaoyu@huawei.com>
Subject: Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits
Date: Wed, 6 Sep 2017 18:35:52 +0800 [thread overview]
Message-ID: <62860a85-c29c-87bb-24b7-c6e5ac6065f9@huawei.com> (raw)
In-Reply-To: <981d7334-8841-d3e3-0833-1aa061bf97a2@arm.com>
Vladimir,
On 2017/9/6 17:41, Vladimir Murzin wrote:
> Can you please elaborate on cases where PAN is not enabled?
I mean the informal private usage, For example, he disabled the PAN dynamically to let kernel space to access the user space.
After he dynamic disabled the PAN, then switched to guest OS. after return to host. he found the PAN stage is modified.
Of cause this is not a formal usage, in our host kernel, it is always enabled, no dynamic change, but I means it may exist such cases.
next prev parent reply other threads:[~2017-09-06 10:37 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-05 18:58 gengdongjiu
2017-09-06 5:26 ` gengdongjiu
2017-09-06 8:17 ` Marc Zyngier
2017-09-06 9:32 ` gengdongjiu
2017-09-06 9:41 ` Vladimir Murzin
2017-09-06 10:35 ` gengdongjiu [this message]
2017-09-06 12:00 ` Vladimir Murzin
2017-09-06 12:14 ` gengdongjiu
2017-09-06 12:30 ` Vladimir Murzin
2017-09-06 12:44 ` gengdongjiu
2017-09-06 13:00 ` Vladimir Murzin
2017-09-06 12:32 ` gengdongjiu
2017-09-06 9:49 ` gengdongjiu
2017-09-06 20:49 ` kbuild test robot
2017-09-06 14:10 gengdongjiu
2017-09-06 14:40 ` Vladimir Murzin
[not found] ` <etPan.59b00f79.2fe72a3.4a29@localhost>
2017-09-06 15:19 ` Vladimir Murzin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=62860a85-c29c-87bb-24b7-c6e5ac6065f9@huawei.com \
--to=gengdongjiu@huawei.com \
--cc=James.Morse@arm.com \
--cc=catalin.marinas@arm.com \
--cc=christoffer.dall@linaro.org \
--cc=huangshaoyu@huawei.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=marc.zyngier@arm.com \
--cc=mark.rutland@arm.com \
--cc=pbonzini@redhat.com \
--cc=rkrcmar@redhat.com \
--cc=suzuki.poulose@arm.com \
--cc=vladimir.murzin@arm.com \
--cc=zhanghaibin7@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®