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From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Like Xu <like.xu.linux@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Will Deacon <will@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
	James Morse <james.morse@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Wanpeng Li <wanpengli@tencent.com>,
	Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
	Stefano Stabellini <sstabellini@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvmarm@lists.cs.columbia.edu, linux-csky@vger.kernel.org,
	linux-riscv@lists.infradead.org, kvm@vger.kernel.org,
	xen-devel@lists.xenproject.org,
	Artem Kashkanov <artem.kashkanov@intel.com>,
	Zhu Lingshan <lingshan.zhu@intel.com>,
	Juergen Gross <jgross@suse.com>, Ingo Molnar <mingo@redhat.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Vincent Chen <deanbo422@gmail.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Greentime Hu <green.hu@gmail.com>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Marc Zyngier <maz@kernel.org>, Nick Hu <nickhu@andestech.com>,
	Guo Ren <guoren@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>
Subject: Re: [PATCH v3 01/16] perf: Ensure perf_guest_cbs aren't reloaded between !NULL check and deref
Date: Thu, 11 Nov 2021 00:39:52 +0000	[thread overview]
Message-ID: <YYxmWGB6IUwEu4VZ@google.com> (raw)
In-Reply-To: <f86fe9cb-bf4b-1c10-e0da-276fbb3f62ee@redhat.com>

On Wed, Nov 10, 2021, Paolo Bonzini wrote:
> On 11/4/21 15:18, Sean Christopherson wrote:
> > If I'm interpeting Paolo's suggestion
> > correctly, he's pointing out that oustanding stores to the function pointers in
> > @cbs need to complete before assigning a non-NULL pointer to perf_guest_cbs,
> > otherwise a perf event handler may see a valid pointer with half-baked callbacks.
> > 
> > I think smp_store_release() with a comment would be appropriate, assuming my
> > above interpretation is correct.
> > 
> 
> Yes, exactly.  It should even be rcu_assign_pointer(), matching the
> synchronize_rcu()

And perf_guest_cbs should be tagged __rcu and accessed accordingly.  Which is
effectively what this version (poorly) implemented with a homebrewed mix of
{READ,WRITE}_ONCE, lockdep(), and synchronize_rcu().

> in patch 1 (and the change can be done in patch 1, too).

Ya, the change needs to go into patch 1.

WARNING: multiple messages have this Message-ID (diff)
From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Like Xu <like.xu.linux@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Will Deacon <will@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
	James Morse <james.morse@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Wanpeng Li <wanpengli@tencent.com>,
	Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
	Stefano Stabellini <sstabellini@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvmarm@lists.cs.columbia.edu, linux-csky@vger.kernel.org,
	linux-riscv@lists.infradead.org, kvm@vger.kernel.org,
	xen-devel@lists.xenproject.org,
	Artem Kashkanov <artem.kashkanov@intel.com>,
	Zhu Lingshan <lingshan.zhu@intel.com>,
	Juergen Gross <jgross@suse.com>, Ingo Molnar <mingo@redhat.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Vincent Chen <deanbo422@gmail.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Greentime Hu <green.hu@gmail.com>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Marc Zyngier <maz@kernel.org>, Nick Hu <nickhu@andestech.com>,
	Guo Ren <guoren@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>
Subject: Re: [PATCH v3 01/16] perf: Ensure perf_guest_cbs aren't reloaded between !NULL check and deref
Date: Thu, 11 Nov 2021 00:39:52 +0000	[thread overview]
Message-ID: <YYxmWGB6IUwEu4VZ@google.com> (raw)
In-Reply-To: <f86fe9cb-bf4b-1c10-e0da-276fbb3f62ee@redhat.com>

On Wed, Nov 10, 2021, Paolo Bonzini wrote:
> On 11/4/21 15:18, Sean Christopherson wrote:
> > If I'm interpeting Paolo's suggestion
> > correctly, he's pointing out that oustanding stores to the function pointers in
> > @cbs need to complete before assigning a non-NULL pointer to perf_guest_cbs,
> > otherwise a perf event handler may see a valid pointer with half-baked callbacks.
> > 
> > I think smp_store_release() with a comment would be appropriate, assuming my
> > above interpretation is correct.
> > 
> 
> Yes, exactly.  It should even be rcu_assign_pointer(), matching the
> synchronize_rcu()

And perf_guest_cbs should be tagged __rcu and accessed accordingly.  Which is
effectively what this version (poorly) implemented with a homebrewed mix of
{READ,WRITE}_ONCE, lockdep(), and synchronize_rcu().

> in patch 1 (and the change can be done in patch 1, too).

Ya, the change needs to go into patch 1.

_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

WARNING: multiple messages have this Message-ID (diff)
From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Wanpeng Li <wanpengli@tencent.com>,
	kvm@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
	Guo Ren <guoren@kernel.org>,
	linux-riscv@lists.infradead.org,
	Vincent Chen <deanbo422@gmail.com>, Will Deacon <will@kernel.org>,
	kvmarm@lists.cs.columbia.edu,
	Stefano Stabellini <sstabellini@kernel.org>,
	Jiri Olsa <jolsa@redhat.com>, Joerg Roedel <joro@8bytes.org>,
	linux-csky@vger.kernel.org,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Ingo Molnar <mingo@redhat.com>,
	xen-devel@lists.xenproject.org, Juergen Gross <jgross@suse.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Zhu Lingshan <lingshan.zhu@intel.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Greentime Hu <green.hu@gmail.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Artem Kashkanov <artem.kashkanov@intel.com>,
	linux-arm-kernel@lists.infradead.org,
	Jim Mattson <jmattson@google.com>,
	Like Xu <like.xu.linux@gmail.com>, Nick Hu <nickhu@andestech.com>,
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Marc Zyngier <maz@kernel.org>,
	Vitaly Kuznetsov <vkuznets@redhat.com>
Subject: Re: [PATCH v3 01/16] perf: Ensure perf_guest_cbs aren't reloaded between !NULL check and deref
Date: Thu, 11 Nov 2021 00:39:52 +0000	[thread overview]
Message-ID: <YYxmWGB6IUwEu4VZ@google.com> (raw)
In-Reply-To: <f86fe9cb-bf4b-1c10-e0da-276fbb3f62ee@redhat.com>

On Wed, Nov 10, 2021, Paolo Bonzini wrote:
> On 11/4/21 15:18, Sean Christopherson wrote:
> > If I'm interpeting Paolo's suggestion
> > correctly, he's pointing out that oustanding stores to the function pointers in
> > @cbs need to complete before assigning a non-NULL pointer to perf_guest_cbs,
> > otherwise a perf event handler may see a valid pointer with half-baked callbacks.
> > 
> > I think smp_store_release() with a comment would be appropriate, assuming my
> > above interpretation is correct.
> > 
> 
> Yes, exactly.  It should even be rcu_assign_pointer(), matching the
> synchronize_rcu()

And perf_guest_cbs should be tagged __rcu and accessed accordingly.  Which is
effectively what this version (poorly) implemented with a homebrewed mix of
{READ,WRITE}_ONCE, lockdep(), and synchronize_rcu().

> in patch 1 (and the change can be done in patch 1, too).

Ya, the change needs to go into patch 1.
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

WARNING: multiple messages have this Message-ID (diff)
From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Like Xu <like.xu.linux@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Will Deacon <will@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
	James Morse <james.morse@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Wanpeng Li <wanpengli@tencent.com>,
	Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
	Stefano Stabellini <sstabellini@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvmarm@lists.cs.columbia.edu, linux-csky@vger.kernel.org,
	linux-riscv@lists.infradead.org, kvm@vger.kernel.org,
	xen-devel@lists.xenproject.org,
	Artem Kashkanov <artem.kashkanov@intel.com>,
	Zhu Lingshan <lingshan.zhu@intel.com>,
	Juergen Gross <jgross@suse.com>, Ingo Molnar <mingo@redhat.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Vincent Chen <deanbo422@gmail.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Greentime Hu <green.hu@gmail.com>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Marc Zyngier <maz@kernel.org>, Nick Hu <nickhu@andestech.com>,
	Guo Ren <guoren@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>
Subject: Re: [PATCH v3 01/16] perf: Ensure perf_guest_cbs aren't reloaded between !NULL check and deref
Date: Thu, 11 Nov 2021 00:39:52 +0000	[thread overview]
Message-ID: <YYxmWGB6IUwEu4VZ@google.com> (raw)
In-Reply-To: <f86fe9cb-bf4b-1c10-e0da-276fbb3f62ee@redhat.com>

On Wed, Nov 10, 2021, Paolo Bonzini wrote:
> On 11/4/21 15:18, Sean Christopherson wrote:
> > If I'm interpeting Paolo's suggestion
> > correctly, he's pointing out that oustanding stores to the function pointers in
> > @cbs need to complete before assigning a non-NULL pointer to perf_guest_cbs,
> > otherwise a perf event handler may see a valid pointer with half-baked callbacks.
> > 
> > I think smp_store_release() with a comment would be appropriate, assuming my
> > above interpretation is correct.
> > 
> 
> Yes, exactly.  It should even be rcu_assign_pointer(), matching the
> synchronize_rcu()

And perf_guest_cbs should be tagged __rcu and accessed accordingly.  Which is
effectively what this version (poorly) implemented with a homebrewed mix of
{READ,WRITE}_ONCE, lockdep(), and synchronize_rcu().

> in patch 1 (and the change can be done in patch 1, too).

Ya, the change needs to go into patch 1.

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2021-11-11  0:40 UTC|newest]

Thread overview: 189+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-22  0:05 [PATCH v3 00/16] perf: KVM: Fix, optimize, and clean up callbacks Sean Christopherson
2021-09-22  0:05 ` Sean Christopherson
2021-09-22  0:05 ` Sean Christopherson
2021-09-22  0:05 ` Sean Christopherson
2021-09-22  0:05 ` Sean Christopherson
2021-09-22  0:05 ` [PATCH v3 01/16] perf: Ensure perf_guest_cbs aren't reloaded between !NULL check and deref Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-11-04  9:32   ` Like Xu
2021-11-04  9:32     ` Like Xu
2021-11-04  9:32     ` Like Xu
2021-11-04  9:32     ` Like Xu
2021-11-04 14:18     ` Sean Christopherson
2021-11-04 14:18       ` Sean Christopherson
2021-11-04 14:18       ` Sean Christopherson
2021-11-04 14:18       ` Sean Christopherson
2021-11-10 11:07       ` Paolo Bonzini
2021-11-10 11:07         ` Paolo Bonzini
2021-11-10 11:07         ` Paolo Bonzini
2021-11-10 11:07         ` Paolo Bonzini
2021-11-11  0:39         ` Sean Christopherson [this message]
2021-11-11  0:39           ` Sean Christopherson
2021-11-11  0:39           ` Sean Christopherson
2021-11-11  0:39           ` Sean Christopherson
2021-09-22  0:05 ` [PATCH v3 02/16] KVM: x86: Register perf callbacks after calling vendor's hardware_setup() Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  6:23   ` Paolo Bonzini
2021-09-22  6:23     ` Paolo Bonzini
2021-09-22  6:23     ` Paolo Bonzini
2021-09-22  6:23     ` Paolo Bonzini
2021-09-22  0:05 ` [PATCH v3 03/16] KVM: x86: Register Processor Trace interrupt hook iff PT enabled in guest Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  6:24   ` Paolo Bonzini
2021-09-22  6:24     ` Paolo Bonzini
2021-09-22  6:24     ` Paolo Bonzini
2021-09-22  6:24     ` Paolo Bonzini
2021-09-22  0:05 ` [PATCH v3 04/16] perf: Stop pretending that perf can handle multiple guest callbacks Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  6:25   ` Paolo Bonzini
2021-09-22  6:25     ` Paolo Bonzini
2021-09-22  6:25     ` Paolo Bonzini
2021-09-22  6:25     ` Paolo Bonzini
2021-09-22  0:05 ` [PATCH v3 05/16] perf: Drop dead and useless guest "support" from arm, csky, nds32 and riscv Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  6:26   ` Paolo Bonzini
2021-09-22  6:26     ` Paolo Bonzini
2021-09-22  6:26     ` Paolo Bonzini
2021-09-22  6:26     ` Paolo Bonzini
2021-09-22  0:05 ` [PATCH v3 06/16] perf/core: Rework guest callbacks to prepare for static_call support Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  6:28   ` Paolo Bonzini
2021-09-22  6:28     ` Paolo Bonzini
2021-09-22  6:28     ` Paolo Bonzini
2021-09-22  6:28     ` Paolo Bonzini
2021-09-22 18:31   ` Boris Ostrovsky
2021-09-22 18:31     ` Boris Ostrovsky
2021-09-22 18:31     ` Boris Ostrovsky
2021-09-22 18:31     ` Boris Ostrovsky
2021-09-22  0:05 ` [PATCH v3 07/16] perf: Add wrappers for invoking guest callbacks Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  6:29   ` Paolo Bonzini
2021-09-22  6:29     ` Paolo Bonzini
2021-09-22  6:29     ` Paolo Bonzini
2021-09-22  6:29     ` Paolo Bonzini
2021-09-22  0:05 ` [PATCH v3 08/16] perf: Force architectures to opt-in to " Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  6:32   ` Paolo Bonzini
2021-09-22  6:32     ` Paolo Bonzini
2021-09-22  6:32     ` Paolo Bonzini
2021-09-22  6:32     ` Paolo Bonzini
2021-09-22 14:48     ` Sean Christopherson
2021-09-22 14:48       ` Sean Christopherson
2021-09-22 14:48       ` Sean Christopherson
2021-09-22 14:48       ` Sean Christopherson
2021-11-09 23:46       ` Sean Christopherson
2021-11-09 23:46         ` Sean Christopherson
2021-11-09 23:46         ` Sean Christopherson
2021-11-09 23:46         ` Sean Christopherson
2021-09-22  0:05 ` [PATCH v3 09/16] perf/core: Use static_call to optimize perf_guest_info_callbacks Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  6:33   ` Paolo Bonzini
2021-09-22  6:33     ` Paolo Bonzini
2021-09-22  6:33     ` Paolo Bonzini
2021-09-22  6:33     ` Paolo Bonzini
2021-09-22  0:05 ` [PATCH v3 10/16] KVM: x86: Drop current_vcpu for kvm_running_vcpu + kvm_arch_vcpu variable Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  6:40   ` Paolo Bonzini
2021-09-22  6:40     ` Paolo Bonzini
2021-09-22  6:40     ` Paolo Bonzini
2021-09-22  6:40     ` Paolo Bonzini
2021-09-22  0:05 ` [PATCH v3 11/16] KVM: x86: More precisely identify NMI from guest when handling PMI Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  6:38   ` Paolo Bonzini
2021-09-22  6:38     ` Paolo Bonzini
2021-09-22  6:38     ` Paolo Bonzini
2021-09-22  6:38     ` Paolo Bonzini
2021-09-22  0:05 ` [PATCH v3 12/16] KVM: Move x86's perf guest info callbacks to generic KVM Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  6:41   ` Paolo Bonzini
2021-09-22  6:41     ` Paolo Bonzini
2021-09-22  6:41     ` Paolo Bonzini
2021-09-22  6:41     ` Paolo Bonzini
2021-10-11  9:35   ` Marc Zyngier
2021-10-11  9:35     ` Marc Zyngier
2021-10-11  9:35     ` Marc Zyngier
2021-10-11  9:35     ` Marc Zyngier
2021-10-11 14:46     ` Sean Christopherson
2021-10-11 14:46       ` Sean Christopherson
2021-10-11 14:46       ` Sean Christopherson
2021-10-11 14:46       ` Sean Christopherson
2021-10-11 15:33       ` Marc Zyngier
2021-10-11 15:33         ` Marc Zyngier
2021-10-11 15:33         ` Marc Zyngier
2021-10-11 15:33         ` Marc Zyngier
2021-09-22  0:05 ` [PATCH v3 13/16] KVM: x86: Move Intel Processor Trace interrupt handler to vmx.c Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05 ` [PATCH v3 14/16] KVM: arm64: Convert to the generic perf callbacks Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-10-11  9:38   ` Marc Zyngier
2021-10-11  9:38     ` Marc Zyngier
2021-10-11  9:38     ` Marc Zyngier
2021-10-11  9:38     ` Marc Zyngier
2021-09-22  0:05 ` [PATCH v3 15/16] KVM: arm64: Drop perf.c and fold its tiny bits of code into arm.c / pmu.c Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-10-11  9:44   ` Marc Zyngier
2021-10-11  9:44     ` Marc Zyngier
2021-10-11  9:44     ` Marc Zyngier
2021-10-11  9:44     ` Marc Zyngier
2021-11-09 23:16     ` Sean Christopherson
2021-11-09 23:16       ` Sean Christopherson
2021-11-09 23:16       ` Sean Christopherson
2021-11-09 23:16       ` Sean Christopherson
2021-09-22  0:05 ` [PATCH v3 16/16] perf: Drop guest callback (un)register stubs Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  0:05   ` Sean Christopherson
2021-09-22  6:29   ` Paolo Bonzini
2021-09-22  6:29     ` Paolo Bonzini
2021-09-22  6:29     ` Paolo Bonzini
2021-09-22  6:29     ` Paolo Bonzini
2021-09-22  6:42 ` [PATCH v3 00/16] perf: KVM: Fix, optimize, and clean up callbacks Paolo Bonzini
2021-09-22  6:42   ` Paolo Bonzini
2021-09-22  6:42   ` Paolo Bonzini
2021-09-22  6:42   ` Paolo Bonzini

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