From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D59D93D3336; Tue, 28 Apr 2026 23:25:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777418720; cv=none; b=YywaVd1ccjRNUFsaDrkwmx30eCLL/FnPn7bMQn9kKBvZ4w0p7CgWb9wycpZWA261dEmeraauAHIJ8ccuyntPrKQA9iaGeP12bnq31aP6LyKKTuq1yd9D9XyceMtwhKFFqhZXRoH4rm9mBtfYPpIRjmp8HEYn4gCiuCDfY/DR444= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777418720; c=relaxed/simple; bh=IkAEdxgFQSCePcOD0KI1OLzhhzwrFCotUetQZ59Ws/c=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=dZalwm9SoZNSHI199TsMFrTBGcor4fGs9NwDxdsNV+19nGvi1fpgVJLzs6WAoT2PuFirBRWunAGFkLWgPwoMsyFHtmClMcNa0OeUSWbwceHk0rv5NonaQdbekm1ZFy6h0hWyxQzvSxkMcSyIanCnNwajSG+OFCnOAu3L2wZW7qo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=a5SAxy13; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="a5SAxy13" Received: by smtp.kernel.org (Postfix) with ESMTPS id B70D3C2BCB9; Tue, 28 Apr 2026 23:25:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777418720; bh=IkAEdxgFQSCePcOD0KI1OLzhhzwrFCotUetQZ59Ws/c=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=a5SAxy130HMQEbD8PsBjsAfQVJ8v5McxRo1t0frjQsvW+fhm/mdth96pFJvKEw5km iFXSxPCCSbFwmHfgHuAXjGfzRcO7nmJ187/MjgpGpD2YeMMcP1lXBvyN/GVhoJJvG7 7lvDBH5ysmzlD/sV6xntrX4TBgtzwUDPGbe+spSBoXTMzmGENv8SZ/SgkSRyhEDqU9 +whyviMabBlg+/7saH6ETlKbn+Dd62+XH/AZIEF3rwGBM6i4llNXNcuZGW9+egxZET ZcQ1n7xhxAb/XkzsEwWJvw8nYbCYXL16h4IBnnqlqYGKpwaohzHfHUXmo8G1KbjnsZ hM3C6FdqJ66Ng== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id AD820FF887E; Tue, 28 Apr 2026 23:25:20 +0000 (UTC) From: Ackerley Tng via B4 Relay Date: Tue, 28 Apr 2026 16:25:37 -0700 Subject: [PATCH RFC v5 42/53] KVM: selftests: Test that conversion to private does not support ZERO Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; 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 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