Re: [patch V2 7/7] x86/kvm/vmx: Use native read/write_cr2()

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Subject: Re: [patch V2 7/7] x86/kvm/vmx: Use native read/write_cr2()
From: Jürgen Groß <jgross@xxxxxxxx>
Date: Thu, 9 Jul 2020 06:13:40 +0200
Cc: x86@xxxxxxxxxx, Paolo Bonzini <pbonzini@xxxxxxxxxx>, kvm@xxxxxxxxxxxxxxx, Alexandre Chartre <alexandre.chartre@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>
In-reply-to: <20200708195322.344731916@linutronix.de>
References: <20200708195153.746357686@linutronix.de> <20200708195322.344731916@linutronix.de>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0

On 08.07.20 21:52, Thomas Gleixner wrote:

From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

read/write_cr2() go throuh the paravirt XXL indirection, but nested VMX in
a XEN_PV guest is not supported.

Use the native variants.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>


Reviewed-by: Juergen Gross <jgross@xxxxxxxx>


Juergen

References:
- [patch V2 0/7] x86/kvm: RCU/context tracking and instrumentation protections
  - From: Thomas Gleixner
- [patch V2 7/7] x86/kvm/vmx: Use native read/write_cr2()
  - From: Thomas Gleixner

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