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Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits

From gengdongjiu <gengdongjiu@huawei.com>
Newsgroups linux.kernel
Subject Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits
Date 2017-09-06 12:40 +0200
Message-ID <umFUv-oN-7@gated-at.bofh.it> (permalink)
References <umrov-6Vh-37@gated-at.bofh.it> <umDJ0-7kw-17@gated-at.bofh.it> <umEYp-89a-1@gated-at.bofh.it> <umF85-8in-13@gated-at.bofh.it>
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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.

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[PATCH] arm64: KVM: VHE: save and restore some PSTATE bits gengdongjiu <gengdongjiu@huawei.com> - 2017-09-05 21:10 +0200
  Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits gengdongjiu <gengdongjiu@huawei.com> - 2017-09-06 07:30 +0200
  Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits Marc Zyngier <marc.zyngier@arm.com> - 2017-09-06 10:20 +0200
    Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits gengdongjiu <gengdongjiu@huawei.com> - 2017-09-06 11:40 +0200
      Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits Vladimir Murzin <vladimir.murzin@arm.com> - 2017-09-06 11:50 +0200
        Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits gengdongjiu <gengdongjiu@huawei.com> - 2017-09-06 12:40 +0200
          Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits Vladimir Murzin <vladimir.murzin@arm.com> - 2017-09-06 14:10 +0200
            Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits gengdongjiu <gengdongjiu@huawei.com> - 2017-09-06 14:20 +0200
              Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits Vladimir Murzin <vladimir.murzin@arm.com> - 2017-09-06 14:40 +0200
                Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits gengdongjiu <gengdongjiu@huawei.com> - 2017-09-06 14:50 +0200
                Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits Vladimir Murzin <vladimir.murzin@arm.com> - 2017-09-06 15:10 +0200
            Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits gengdongjiu <gengdongjiu@huawei.com> - 2017-09-06 14:40 +0200
      Re: [PATCH] arm64: KVM: VHE: save and restore some PSTATE bits gengdongjiu <gengdongjiu@huawei.com> - 2017-09-06 12:00 +0200

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