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AJvYcCVQZoujaqme2do1zx5NMZ4BiEujp5QaNNFrPgyn5VFQxS02uo/H1xpay5nMo6W+JlgcPIOWLyGK+msJmesH@vger.kernel.org X-Gm-Message-State: AOJu0Yy6q/zZZjYp/Z41Yi5TcT9A/EYR/cNo+lLJxlWchSEX9uHuoLAB 8Hxcg5dTQm/B+idRa5QdkzvggyCMuRMRvM+PhQjPbnirs+NW1SQdNlooHvRlnfK31tgO9EBOkg= = X-Google-Smtp-Source: AGHT+IH0xuxWTGEs9x087sQRaUuSBVW+q25VqdZB2aOt6dDiT4Tp+EMY0I0pqw4sShmqWhjrTgxeK/obMw== X-Received: from wmbay40.prod.google.com ([2002:a05:600c:1e28:b0:439:3e30:957a]) (user=tabba job=prod-delivery.src-stubby-dispatcher) by 2002:a5d:47c3:0:b0:38d:e166:8dc2 with SMTP id ffacd0b85a97d-38de1669178mr6366905f8f.16.1739275911124; Tue, 11 Feb 2025 04:11:51 -0800 (PST) Date: Tue, 11 Feb 2025 12:11:26 +0000 In-Reply-To: <20250211121128.703390-1-tabba@google.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: <linux-arm-msm.vger.kernel.org> List-Subscribe: <mailto:linux-arm-msm+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-arm-msm+unsubscribe@vger.kernel.org> Mime-Version: 1.0 References: <20250211121128.703390-1-tabba@google.com> X-Mailer: git-send-email 2.48.1.502.g6dc24dfdaf-goog Message-ID: <20250211121128.703390-11-tabba@google.com> Subject: [PATCH v3 10/11] KVM: arm64: Enable mapping guest_memfd in arm64 From: Fuad Tabba <tabba@google.com> To: kvm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-mm@kvack.org Cc: pbonzini@redhat.com, chenhuacai@kernel.org, mpe@ellerman.id.au, anup@brainfault.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, seanjc@google.com, viro@zeniv.linux.org.uk, brauner@kernel.org, willy@infradead.org, akpm@linux-foundation.org, xiaoyao.li@intel.com, yilun.xu@intel.com, chao.p.peng@linux.intel.com, jarkko@kernel.org, amoorthy@google.com, dmatlack@google.com, yu.c.zhang@linux.intel.com, isaku.yamahata@intel.com, mic@digikod.net, vbabka@suse.cz, vannapurve@google.com, ackerleytng@google.com, mail@maciej.szmigiero.name, david@redhat.com, michael.roth@amd.com, wei.w.wang@intel.com, liam.merwick@oracle.com, isaku.yamahata@gmail.com, kirill.shutemov@linux.intel.com, suzuki.poulose@arm.com, steven.price@arm.com, quic_eberman@quicinc.com, quic_mnalajal@quicinc.com, quic_tsoni@quicinc.com, quic_svaddagi@quicinc.com, quic_cvanscha@quicinc.com, quic_pderrin@quicinc.com, quic_pheragu@quicinc.com, catalin.marinas@arm.com, james.morse@arm.com, yuzenghui@huawei.com, oliver.upton@linux.dev, maz@kernel.org, will@kernel.org, qperret@google.com, keirf@google.com, roypat@amazon.co.uk, shuah@kernel.org, hch@infradead.org, jgg@nvidia.com, rientjes@google.com, jhubbard@nvidia.com, fvdl@google.com, hughd@google.com, jthoughton@google.com, tabba@google.com Content-Type: text/plain; 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KVM: Mapping guest_memfd backed memory at the host for software protected VMs
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diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig index ead632ad01b4..4830d8805bed 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -38,6 +38,7 @@ menuconfig KVM select HAVE_KVM_VCPU_RUN_PID_CHANGE select SCHED_INFO select GUEST_PERF_EVENTS if PERF_EVENTS + select KVM_GMEM_SHARED_MEM help Support hosting virtualized guest machines.
Enable mapping guest_memfd in arm64, which would only apply to VMs with the type KVM_VM_TYPE_ARM_SW_PROTECTED. Signed-off-by: Fuad Tabba <tabba@google.com> --- arch/arm64/kvm/Kconfig | 1 + 1 file changed, 1 insertion(+)