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From: Paolo Bonzini <pbonzini@redhat.com>
To: Thomas Gleixner <tglx@linutronix.de>,
	LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, kvm@vger.kernel.org,
	Alexandre Chartre <alexandre.chartre@oracle.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Juergen Gross <jgross@suse.com>
Subject: Re: [patch V2 0/7] x86/kvm: RCU/context tracking and instrumentation protections
Date: Wed, 8 Jul 2020 22:28:51 +0200	[thread overview]
Message-ID: <1b17c3ed-e53c-2e20-2880-882fdc84f622@redhat.com> (raw)
In-Reply-To: <20200708195153.746357686@linutronix.de>

On 08/07/20 21:51, Thomas Gleixner wrote:
> Folks,
> 
> this is a rebased and adopted version of the original series which is
> available here:
> 
>      https://lore.kernel.org/r/20200519203128.773151484@linutronix.de
>  
> It deals with the RCU and context tracking state and the protection against
> instrumentation in sensitive places:
> 
>   - Placing the guest_enter/exit() calls at the correct place
> 
>   - Moving the sensitive VMENTER/EXIT code into the non-instrumentable code
>     section.
> 
>   - Fixup the tracing code to comply with the non-instrumentation rules
> 
>   - Use native functions to access CR2 and the GS base MSR in the critical
>     code pathes to prevent them from being instrumented.
> 
> Thanks,
> 
> 	tglx
> 

Queued, thanks.

Paolo


      parent reply	other threads:[~2020-07-08 20:29 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-08 19:51 [patch V2 0/7] x86/kvm: RCU/context tracking and instrumentation protections Thomas Gleixner
2020-07-08 19:51 ` [patch V2 1/7] x86/kvm: Move context tracking where it belongs Thomas Gleixner
2020-07-08 19:51 ` [patch V2 2/7] x86/kvm/vmx: Add hardirq tracing to guest enter/exit Thomas Gleixner
2020-07-08 19:51 ` [patch V2 3/7] x86/kvm/svm: Add hardirq tracing on " Thomas Gleixner
2020-07-08 19:51 ` [patch V2 4/7] x86/kvm/vmx: Move guest enter/exit into .noinstr.text Thomas Gleixner
2020-07-08 19:51 ` [patch V2 5/7] x86/kvm/svm: " Thomas Gleixner
2020-07-08 19:51 ` [patch V2 6/7] x86/kvm/svm: Use uninstrumented wrmsrl() to restore GS Thomas Gleixner
2020-07-08 19:52 ` [patch V2 7/7] x86/kvm/vmx: Use native read/write_cr2() Thomas Gleixner
2020-07-09  4:13   ` Jürgen Groß
2020-07-08 20:28 ` Paolo Bonzini [this message]

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