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[35.189.192.250]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-499dd5b3958sm8743505e9.0.2026.08.26.01.45.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Aug 2026 01:45:54 -0700 (PDT) Date: Wed, 26 Aug 2026 08:45:50 +0000 From: Mostafa Saleh To: Jason Gunthorpe Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev, iommu@lists.linux.dev, catalin.marinas@arm.com, will@kernel.org, maz@kernel.org, oliver.upton@linux.dev, joey.gouly@arm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, joro@8bytes.org, jgg@ziepe.ca, mark.rutland@arm.com, qperret@google.com, tabba@google.com, vdonnefort@google.com, sebastianene@google.com, keirf@google.com Subject: Re: [PATCH v7 00/24] KVM: arm64: SMMUv3 driver for pKVM (trap and emulate) Message-ID: References: <20260715115906.2664882-1-smostafa@google.com> <178769159057.3356902.1232440069489543145.b4-review@b4> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <178769159057.3356902.1232440069489543145.b4-review@b4> On Tue, Aug 25, 2026 at 05:59:50PM -0300, Jason Gunthorpe wrote: > > This is v7 of pKVM SMMUv3 support with trap and emulate > > I tried to compile it: > > ld.lld-21: error: undefined symbol: __kvm_nvhe_iova_bitmap_set > >>> referenced by __kvm_nvhe_io-pgtable-arm.c > >>> arch/arm64/kvm/hyp/nvhe/kvm_nvhe.o:(__kvm_nvhe_visit_dirty) in archive vmlinux.a > > I think it is because I have CONFIG_IOMMUFD turned on. > > -#if IS_ENABLED(CONFIG_IOMMUFD_DRIVER) > +#if IS_ENABLED(CONFIG_IOMMUFD_DRIVER) && !IS_ENABLED(__KVM_NVHE_HYPERVISOR__) > struct iova_bitmap *iova_bitmap_alloc(unsigned long iova, size_t length, > > ? Ah, I don't think I tested that config, sorry about that, I will fix it in the next version, I think I will just stub it in the hypervisor if possible. Thanks, Mostafa > > -- > Jason