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From: Paolo Bonzini <pbonzini@redhat.com>
To: Marc Zyngier <maz@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
Sean Christopherson <seanjc@google.com>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Guo Ren <guoren@kernel.org>, Nick Hu <nickhu@andestech.com>,
Greentime Hu <green.hu@gmail.com>,
Vincent Chen <deanbo422@gmail.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Thomas Gleixner <tglx@linutronix.de>,
Borislav Petkov <bp@alien8.de>,
x86@kernel.org, Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Juergen Gross <jgross@suse.com>,
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>,
"H. Peter Anvin" <hpa@zytor.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-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.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>,
Like Xu <like.xu.linux@gmail.com>,
Zhu Lingshan <lingshan.zhu@intel.com>
Subject: Re: [PATCH v2 00/13] perf: KVM: Fix, optimize, and clean up callbacks
Date: Mon, 20 Sep 2021 15:18:30 +0200 [thread overview]
Message-ID: <7a5825d1-d6e9-8ac8-5df2-cce693525da7@redhat.com> (raw)
In-Reply-To: <87tuifv3mb.wl-maz@kernel.org>
On 20/09/21 14:22, Marc Zyngier wrote:
>> I think that's only ARM, and even then it is only because of
>> limitations of the hardware which mostly apply only if VHE is not in
>> use.
>>
>> If anything, it's ARM that should support module build in VHE mode
>> (Linux would still need to know whether it will be running at EL1 or
>> EL2, but KVM's functionality is as self-contained as on x86 in the VHE
>> case).
> I don't see this happening anytime soon. At least not before we
> declare the arm64 single kernel image policy to be obsolete.
--verbose please. :) I am sure you're right, but I don't understand the
link between the two.
Paolo
next prev parent reply other threads:[~2021-09-20 13:18 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-28 0:35 Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 01/13] perf: Ensure perf_guest_cbs aren't reloaded between !NULL check and deref Sean Christopherson
2021-08-28 19:44 ` Peter Zijlstra
2021-09-16 21:41 ` Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 02/13] KVM: x86: Register perf callbacks after calling vendor's hardware_setup() Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 03/13] KVM: x86: Register Processor Trace interrupt hook iff PT enabled in guest Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 04/13] perf: Stop pretending that perf can handle multiple guest callbacks Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 05/13] perf: Force architectures to opt-in to " Sean Christopherson
2021-08-28 19:47 ` Peter Zijlstra
2021-09-16 22:30 ` Sean Christopherson
2021-09-21 16:44 ` Paolo Bonzini
2021-09-21 21:29 ` Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 06/13] perf/core: Rework guest callbacks to prepare for static_call support Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 07/13] perf/core: Use static_call to optimize perf_guest_info_callbacks Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 08/13] KVM: x86: Drop current_vcpu for kvm_running_vcpu + kvm_arch_vcpu variable Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 09/13] KVM: x86: More precisely identify NMI from guest when handling PMI Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 10/13] KVM: Move x86's perf guest info callbacks to generic KVM Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 11/13] KVM: x86: Move Intel Processor Trace interrupt handler to vmx.c Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 12/13] KVM: arm64: Convert to the generic perf callbacks Sean Christopherson
2021-08-28 0:35 ` [PATCH v2 13/13] KVM: arm64: Drop perf.c and fold its tiny bits of code into arm.c / pmu.c Sean Christopherson
2021-08-28 20:13 ` [PATCH v2 00/13] perf: KVM: Fix, optimize, and clean up callbacks Peter Zijlstra
2021-09-16 21:37 ` Sean Christopherson
2021-09-17 7:28 ` Peter Zijlstra
2021-09-17 16:53 ` Sean Christopherson
2021-09-20 12:05 ` Paolo Bonzini
2021-09-20 12:22 ` Marc Zyngier
2021-09-20 13:18 ` Paolo Bonzini [this message]
2021-09-20 13:40 ` Marc Zyngier
2021-09-20 18:22 ` Paolo Bonzini
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