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AJvYcCVBsVlWj3U4tOjZi6lE0P+dV+6Z9J8xkR3wC5uc4rHbJ5uXAZE7wZnsoI5/HkqRxY0KPE3xDDGAm20=@vger.kernel.org X-Gm-Message-State: AOJu0YwilYyFegRMGSX/oHLR38zfFqMNKkPOKndwJfODKSutziWN+9hI KLhq1kNzL3HZZUeu2l36CgTlW6roK9PUXXuGjbuM/cJ2rQZqcBR7NqrI80bfZWLDfx8x2QkMpGA gaQyMlQOfACYqA4rKOfUZaWD5+Q== X-Received: from pjbcp9.prod.google.com ([2002:a17:90a:fb89:b0:35c:1a37:ace]) (user=ackerleytng job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:3e8e:b0:35c:d98:d682 with SMTP id 98e67ed59e1d1-35c2ff8b101mr403470a91.9.1774568218647; Thu, 26 Mar 2026 16:36:58 -0700 (PDT) Date: Thu, 26 Mar 2026 16:36:38 -0700 In-Reply-To: <20260326-gmem-inplace-conversion-v4-0-e202fe950ffd@google.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260326-gmem-inplace-conversion-v4-0-e202fe950ffd@google.com> X-Mailer: git-send-email 2.53.0.1018.g2bb0e51243-goog Message-ID: Subject: [POC PATCH 0/6] guest_memfd in-place conversion selftests for SNP From: Ackerley Tng To: ackerleytng@google.com Cc: aik@amd.com, akpm@linux-foundation.org, andrew.jones@linux.dev, aneesh.kumar@kernel.org, axelrasmussen@google.com, baohua@kernel.org, bhe@redhat.com, binbin.wu@linux.intel.com, bp@alien8.de, brauner@kernel.org, chao.p.peng@linux.intel.com, chrisl@kernel.org, corbet@lwn.net, dave.hansen@linux.intel.com, david@kernel.org, forkloop@google.com, hpa@zytor.com, ira.weiny@intel.com, jgg@ziepe.ca, jmattson@google.com, jroedel@suse.de, jthoughton@google.com, kasong@tencent.com, kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com, mhiramat@kernel.org, michael.roth@amd.com, mingo@redhat.com, nphamcs@gmail.com, oupton@kernel.org, pankaj.gupta@amd.com, pbonzini@redhat.com, pratyush@kernel.org, qperret@google.com, rick.p.edgecombe@intel.com, rientjes@google.com, rostedt@goodmis.org, seanjc@google.com, shikemeng@huaweicloud.com, shivankg@amd.com, shuah@kernel.org, skhan@linuxfoundation.org, steven.price@arm.com, suzuki.poulose@arm.com, tabba@google.com, tglx@kernel.org, vannapurve@google.com, vbabka@kernel.org, weixugc@google.com, willy@infradead.org, wyihan@google.com, x86@kernel.org, yan.y.zhao@intel.com, yuanchu@google.com Content-Type: text/plain; charset="UTF-8" With these POC patches, I was able to test the set memory attributes/conversion ioctls with SNP. The content policies work :) Ackerley Tng (6): KVM: selftests: Initialize guest_memfd with INIT_SHARED KVM: selftests: Call snp_launch_update_data() providing copy of memory KVM: selftests: Make guest_code_xsave more friendly KVM: selftests: Allow specifying CoCo-privateness while mapping a page KVM: selftests: Test conversions for SNP KVM: selftests: Test content modes ZERO and PRESERVE for SNP .../selftests/kvm/include/x86/processor.h | 2 + tools/testing/selftests/kvm/lib/kvm_util.c | 12 +- .../testing/selftests/kvm/lib/x86/processor.c | 13 +- tools/testing/selftests/kvm/lib/x86/sev.c | 35 ++- .../selftests/kvm/x86/sev_smoke_test.c | 255 +++++++++++++++++- 5 files changed, 295 insertions(+), 22 deletions(-) -- 2.53.0.1018.g2bb0e51243-goog