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charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260428-gmem-inplace-conversion-v5-42-d8608ccfca22@google.com> References: <20260428-gmem-inplace-conversion-v5-0-d8608ccfca22@google.com> In-Reply-To: <20260428-gmem-inplace-conversion-v5-0-d8608ccfca22@google.com> To: aik@amd.com, andrew.jones@linux.dev, binbin.wu@linux.intel.com, brauner@kernel.org, chao.p.peng@linux.intel.com, david@kernel.org, ira.weiny@intel.com, jmattson@google.com, jthoughton@google.com, michael.roth@amd.com, oupton@kernel.org, pankaj.gupta@amd.com, qperret@google.com, rick.p.edgecombe@intel.com, rientjes@google.com, shivankg@amd.com, steven.price@arm.com, tabba@google.com, willy@infradead.org, wyihan@google.com, yan.y.zhao@intel.com, forkloop@google.com, pratyush@kernel.org, suzuki.poulose@arm.com, aneesh.kumar@kernel.org, Paolo Bonzini , Sean Christopherson , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Jonathan Corbet , Shuah Khan , Shuah Khan , Vishal Annapurve , Andrew Morton , Chris Li , Kairui Song , Kemeng Shi , Nhat Pham , Baoquan He , Barry Song , Axel Rasmussen , Yuanchu Xie , Wei Xu , Youngjun Park , Qi Zheng , Shakeel Butt , Kiryl Shutsemau , Jason Gunthorpe , Vlastimil Babka Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, linux-coco@lists.linux.dev, Ackerley Tng X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1777418714; l=1307; i=ackerleytng@google.com; s=20260225; h=from:subject:message-id; bh=1/xHeFjZTWhRZczDGwQ1Jx9lj8BRoFI4Rw461HTrIgs=; b=9CgTbYMxC9JsFpzII614O+d7fbdprDVtfo6d7D8lw8ni08UNZgZcln0uVEjpkx6k04MiPFJfg QxJe2dg02RkACTOyS3Hdd2KOFVsbBQx6ftQ808D36NvFDwoR9KUB/VQ X-Developer-Key: i=ackerleytng@google.com; a=ed25519; pk=sAZDYXdm6Iz8FHitpHeFlCMXwabodTm7p8/3/8xUxuU= X-Endpoint-Received: by B4 Relay for ackerleytng@google.com/20260225 with auth_id=649 X-Original-From: Ackerley Tng Reply-To: ackerleytng@google.com X-Rspam-User: X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: C7FD614000D X-Stat-Signature: fp38yig9phmbetg86wwk7y9sbiakz1tp X-HE-Tag: 1777418739-16967 X-HE-Meta: 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 3uF8w7Mb /sS61u1CU50kiK4U17WErxquie//qa/CaVQUKdUplH9adYHxdsXPViH/Z+WnRUo4kd5HBVPnOsB8VIoZCDv6o3o022rMHlw80HjEvF0r9rhbBzp/GKfupoXU2mRj7GMu4GSrEgFcfjnABcUT9GJuIRXEukyKHb0mRxInydh3+MwntWQ7Lz/01qhPh86mChOb5vZ9MoeQaIOwtvgG2A7ceIsWeltjDaBqWCQ132+yYcB/Vix/andMua4gLlEpQKM6aXuM6lde5d3sV57ZE6qZvVBRiZQbISxaMT5SJ3IN0iQ2E2EbDI3e8XSwIpNF3X7FHb0J3lVaB3QfintKF1/E6sep+lRDJPnF3F3gXRUL/YavPZ2DB61n4GXlZK8o0sfCqbQA3yCMsbfqFrs6baKgyc+xfaV5xKRrylow3ckPdThm8ho75sxSrtyFsnVZMLdh17UPd Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Ackerley Tng Test that conversion to private specifying the KVM_SET_MEMORY_ATTRIBUTES2_ZERO flag returns -1 and sets errno to EOPNOTSUPP. Signed-off-by: Ackerley Tng --- .../selftests/kvm/x86/guest_memfd_conversions_test.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/tools/testing/selftests/kvm/x86/guest_memfd_conversions_test.c b/tools/testing/selftests/kvm/x86/guest_memfd_conversions_test.c index 13bbc361eaeda..922261ebaff96 100644 --- a/tools/testing/selftests/kvm/x86/guest_memfd_conversions_test.c +++ b/tools/testing/selftests/kvm/x86/guest_memfd_conversions_test.c @@ -488,6 +488,21 @@ GMEM_CONVERSION_MULTIPAGE_TEST_INIT_SHARED(elevated_refcount, 4) } } +GMEM_CONVERSION_TEST_INIT_SHARED(convert_to_private_does_not_support_zero) +{ + const loff_t start_offset = 0; + loff_t error_offset = 0; + int ret; + + ret = __gmem_set_private(t->gmem_fd, start_offset, nr_pages * page_size, + &error_offset, + KVM_SET_MEMORY_ATTRIBUTES2_ZERO); + + TEST_ASSERT_EQ(ret, -1); + TEST_ASSERT_EQ(errno, EOPNOTSUPP); + TEST_ASSERT_EQ(error_offset, start_offset); +} + int main(int argc, char *argv[]) { TEST_REQUIRE(kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM)); -- 2.54.0.545.g6539524ca2-goog