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AJvYcCX21qDfToKh8BY5Pzc03B02ruIee1flH3YRQfqKL71YzCdmEykoBq/3PT74q8T+vAHrROlr/lLxdQ==@kvack.org X-Gm-Message-State: AOJu0YxzPKOI3TACXNR7aWKl2m7PlGIAnv0E60mhw/02EItq/vE71069 3QTxTiH1LyCPjeB0hfa9tLPeHH8WpCebAQsvFcFyFwC69igVQPKNxDNgxWPXCJH/kx6YDtobN7+ kMDHajg== X-Received: from plch3.prod.google.com ([2002:a17:902:f2c3:b0:2a3:e3b:89b6]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:2c08:b0:2a0:c92e:a378 with SMTP id d9443c01a7336-2a71756b899mr7431015ad.7.1768511269740; Thu, 15 Jan 2026 13:07:49 -0800 (PST) Date: Thu, 15 Jan 2026 13:07:47 -0800 In-Reply-To: <176849903000.720660.2401438098975748028.b4-ty@google.com> Mime-Version: 1.0 References: <20260108214622.1084057-1-michael.roth@amd.com> <176849903000.720660.2401438098975748028.b4-ty@google.com> Message-ID: Subject: Re: [PATCH v3 0/6] KVM: guest_memfd: Rework preparation/population flows in prep for in-place conversion From: Sean Christopherson To: kvm@vger.kernel.org, Michael Roth Cc: linux-coco@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, thomas.lendacky@amd.com, pbonzini@redhat.com, vbabka@suse.cz, ashish.kalra@amd.com, liam.merwick@oracle.com, vannapurve@google.com, ackerleytng@google.com, aik@amd.com, ira.weiny@intel.com, yan.y.zhao@intel.com, pankaj.gupta@amd.com, David Hildenbrand Content-Type: text/plain; charset="us-ascii" X-Rspam-User: X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 43A09A0012 X-Stat-Signature: uacpufrog34uozssatm8gso1tg9o9ao8 X-HE-Tag: 1768511271-277474 X-HE-Meta: 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 iJqVC+28 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Jan 15, 2026, Sean Christopherson wrote: > On Thu, 08 Jan 2026 15:46:16 -0600, Michael Roth wrote: > > This patchset is also available at: > > > > https://github.com/AMDESE/linux/tree/gmem-populate-rework-v3 > > > > and is based on top of kvm/next (0499add8efd7) > > > > > > [...] > > Applied to kvm-x86 gmem, with the tweaked logic I suggested. Thanks! > > [1/6] KVM: SVM: Fix a missing kunmap_local() in sev_gmem_post_populate() > https://github.com/kvm-x86/linux/commit/60b590de8b30 > [2/6] KVM: guest_memfd: Remove partial hugepage handling from kvm_gmem_populate() > https://github.com/kvm-x86/linux/commit/0726d3e164f1 > [3/6] KVM: guest_memfd: Remove preparation tracking > https://github.com/kvm-x86/linux/commit/188349ceb0f0 > [4/6] KVM: SEV: Document/enforce page-alignment for KVM_SEV_SNP_LAUNCH_UPDATE > https://github.com/kvm-x86/linux/commit/b2e648758038 > [5/6] KVM: TDX: Document alignment requirements for KVM_TDX_INIT_MEM_REGION > https://github.com/kvm-x86/linux/commit/894c3cc35b89 > [6/6] KVM: guest_memfd: GUP source pages prior to populating guest memory > https://github.com/kvm-x86/linux/commit/ba375af3d04d New hashes after fixing the IS_ERR() goof: [1/6] KVM: SVM: Fix a missing kunmap_local() in sev_gmem_post_populate() https://github.com/kvm-x86/linux/commit/60b590de8b30 [2/6] KVM: guest_memfd: Remove partial hugepage handling from kvm_gmem_populate() https://github.com/kvm-x86/linux/commit/6538b6221cc2 [3/6] KVM: guest_memfd: Remove preparation tracking https://github.com/kvm-x86/linux/commit/8622ef05709f [4/6] KVM: SEV: Document/enforce page-alignment for KVM_SEV_SNP_LAUNCH_UPDATE https://github.com/kvm-x86/linux/commit/dcbcc2323c80 [5/6] KVM: TDX: Document alignment requirements for KVM_TDX_INIT_MEM_REGION https://github.com/kvm-x86/linux/commit/189fd1b059a9 [6/6] KVM: guest_memfd: GUP source pages prior to populating guest memory https://github.com/kvm-x86/linux/commit/2a62345b3052