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Tue, 18 Aug 2026 17:32:56 +0000 Date: Tue, 18 Aug 2026 18:32:55 +0100 Message-ID: <864igr5o6w.wl-maz@kernel.org> From: Marc Zyngier To: Steffen Eiden Cc: kvm@vger.kernel.org, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, Alexander Gordeev , Andreas Grapentin , Arnd Bergmann , Catalin Marinas , Christian Borntraeger , Claudio Imbrenda , David Hildenbrand , Friedrich Welter , Fuad Tabba , Gautam Gala , Hariharan Mari , Heiko Carstens , Hendrik Brueckner , Ilya Leoshkevich , Janosch Frank , Joey Gouly , Nico Boehr , Nina Schoetterl-Glausch , Oliver Upton , Paolo Bonzini , Sean Christopherson , Suzuki K Poulose , Sven Schnelle , Ulrich Weigand , Vasily Gorbik , Will Deacon , Zenghui Yu Subject: Re: [PATCH v6 33/33] KVM: s390: arm64: Enable KVM_ARM64 config and Kbuild In-Reply-To: <20260812153631.3376090-34-seiden@linux.ibm.com> References: <20260812153631.3376090-1-seiden@linux.ibm.com> <20260812153631.3376090-34-seiden@linux.ibm.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/30.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: seiden@linux.ibm.com, kvm@vger.kernel.org, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, agordeev@linux.ibm.com, gra@linux.ibm.com, arnd@arndb.de, catalin.marinas@arm.com, borntraeger@linux.ibm.com, imbrenda@linux.ibm.com, david@kernel.org, fritz@linux.ibm.com, tabba@google.com, ggala@linux.ibm.com, hari55@linux.ibm.com, hca@linux.ibm.com, brueckner@linux.ibm.com, iii@linux.ibm.com, frankja@linux.ibm.com, joey.gouly@arm.com, nrb@linux.ibm.com, oss@nina.schoetterlglausch.eu, oupton@kernel.org, pbonzini@redhat.com, seanjc@google.com, suzuki.poulose@arm.com, svens@linux.ibm.com, Ulrich.Weigand@de.ibm.com, gor@linux.ibm.com, will@kernel.org, yuzenghui@huawei.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false On Wed, 12 Aug 2026 16:36:29 +0100, Steffen Eiden wrote: [...] > +config KVM_ARM64 > + def_tristate y > + prompt "KVM support for hardware accelerated arm64 guests" > + depends on HAS_IOMEM > + depends on KVM > + select GUEST_PERF_EVENTS if PERF_EVENTS > + select HAVE_KVM_CPU_RELAX_INTERCEPT > + select HAVE_KVM_IRQCHIP > + select HAVE_KVM_VCPU_RUN_PID_CHANGE > + select IRQ_BYPASS_MANAGER > + select KVM_COMMON > + select KVM_MMIO > + select KVM_VFIO > + select SCHED_INFO > + select XARRAY_MULTI > + help > + Enable support for hosting paravirtualized, hardware-accelerated Err... No. KVM/arm64 is architectural, and doesn't require anything PV. I suspect this is a direct copy-paste from the s390 text, but this does not represent what KVM/arm64 does, and transitively what KVM/arm64-on-s390 should do. Please drop the PV nonsense. M. -- Without deviation from the norm, progress is not possible.