From patchwork Thu May 23 11:38:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Colin King (gmail)" X-Patchwork-Id: 13671659 Received: from mail-wr1-f52.google.com (mail-wr1-f52.google.com [209.85.221.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D05BE13D2A8; Thu, 23 May 2024 11:38:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.52 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716464287; cv=none; b=cunp3pFuntE9SfLYXLx/qbuCUI9WvZk+knLgIe3O6TCz4vHCs8hLqCymDzAeB5cddrAvhhcPCUSe7ma1HAxRVzJ2lL3YRJQv6PRk40UgY5An8CnPwXIRaZAC2yWU5BBO+ZDPFhRvxk1QA7EwWUOxgErGEeQBLpZ0fDyrCCp02iI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716464287; c=relaxed/simple; bh=18slTayNbrDxXRTDHctjnSZxYHIh7ey5nRzuUlCOa8w=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version:Content-Type; b=Qxx8JqcvkdIF1KgM+QajhHjsF3rtr+IG1NRPdrTVnGSNDexuXXtsD8yOuOuCsdsc+o7ftdSnVs95Jxv8FIexqd/xGuJFSgwk1zfzmq311/dimi7HMvGiSVhtzlI1s5NAoayuKA3IDTral2jnUEIy/fQk5XVnixjhCenyijGleE8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=PaI7MKYJ; arc=none smtp.client-ip=209.85.221.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="PaI7MKYJ" Received: by mail-wr1-f52.google.com with SMTP id ffacd0b85a97d-354f6ab168aso434814f8f.1; Thu, 23 May 2024 04:38:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1716464284; x=1717069084; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=aqT4y2vS8dNyIczJ8/6qqGRpO0964EMbDkWUyIXs2l4=; b=PaI7MKYJeA+XzTHNq89c1OyRRQ1D+/xYWl0bpmS3pgoW3Ij+exl0ZM79sQk7GvNa6i 343hRoMxOHvppM00b7P3J46TTSj3U+RVbJcBdd9zd98dJYVNTvL+WoQj/kj5BpUjFW9Q T5xQTGWKq6V2VXkHRttmCeJcWeU3JLZcGjbv2AVoWj2BMpAGwTMW1fS7/dNHhSH1PlOp prb6A0SkGDAnwdH9C/MBXJ3AjpfY65ly3YuSDDVW8sZJF8t4JpnJ9Nefuo1jN2Wu9852 YuJS17mf6OplleZBI2/JDUnwHF0hjB/P8qT4CH13P6oejg5DZmqtgw0fIHh0gbZJVrFC 95Hw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1716464284; x=1717069084; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=aqT4y2vS8dNyIczJ8/6qqGRpO0964EMbDkWUyIXs2l4=; b=SNwmHygMg28nRHh6Lzz6Zd4+1q4aDqbwW5A3iVBVU7a2t/EIKxhlDDEbirsFnrjynh hsSktfm1tz0IdXXJoTRrp9l2sl8k7lDkwhXcouIeKr9rAmt7b8Td5PXstY0aVQEisjs6 FNpgMXtnpY+NCtTAidttS2CwMSVViPZPta+noVMrCGiv0QysShUy11dYknSWJ5Attl9A xsHVIlZfFDFsVFDngGmDiZNYnkrJQ+IXAtqhw2MGy+Yz+a3GBsiu1mFCmsJdbR24IugC AFHmakO++isoNa84xBnS0l8MnlOTtNjiQLMi6VCJZRAGxL4Vky0subjgFJxyjx6aXurg yQYA== X-Forwarded-Encrypted: i=1; AJvYcCUuS6ci0if0HyCRxlbwC7XuNqo1q0hHUz/CSmuTlZ3BnCKg/zbSnzzzhu7Nh/JKo10qacaD0bAQcIABU0Oqx0gXWgt2muyFBx/EW0eh+6kVXUSggaZOuF55Yh9VuTukzHevAfITIfLoQLG5GMvJTAmoqKfdVgt4PJmWiEVV9DvoC42M X-Gm-Message-State: AOJu0YzgMtMQJ9frvNNjE0yMYN7e+/8TRXf9KoY97CVxVYxAtIji9OSj QFaMKyzE6YLr6F5fgXJ5hJNcD6GeXqUoKDj49DSmr+o7F2J+Vo3E X-Google-Smtp-Source: AGHT+IF0zOUS4HcsGOW8XOAHOsMjR5/9orrWORqY68lF8DKEooBrJ/0B1LJhJnM5j8Xmn6sFwitvJA== X-Received: by 2002:adf:e7c8:0:b0:354:f248:4aa8 with SMTP id ffacd0b85a97d-354f75218a2mr1796665f8f.18.1716464284075; Thu, 23 May 2024 04:38:04 -0700 (PDT) Received: from localhost (craw-09-b2-v4wan-169726-cust2117.vm24.cable.virginm.net. [92.238.24.70]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3502b8a77easm36377801f8f.53.2024.05.23.04.38.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 May 2024 04:38:03 -0700 (PDT) From: Colin Ian King To: Sean Christopherson , Paolo Bonzini , Shuah Khan , kvm@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH][next] selftests: kvm: fix shift of 32 bit unsigned int more than 32 bits Date: Thu, 23 May 2024 12:38:02 +0100 Message-Id: <20240523113802.2195703-1-colin.i.king@gmail.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Currrentl a 32 bit 1u value is being shifted more than 32 bits causing overflow and incorrect checking of bits 32-63. Fix this by using the BIT_ULL macro for shifting bits. Detected by cppcheck: sev_init2_tests.c:108:34: error: Shifting 32-bit value by 63 bits is undefined behaviour [shiftTooManyBits] Fixes: dfc083a181ba ("selftests: kvm: add tests for KVM_SEV_INIT2") Signed-off-by: Colin Ian King --- tools/testing/selftests/kvm/x86_64/sev_init2_tests.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/kvm/x86_64/sev_init2_tests.c b/tools/testing/selftests/kvm/x86_64/sev_init2_tests.c index 7a4a61be119b..ea09f7a06aa4 100644 --- a/tools/testing/selftests/kvm/x86_64/sev_init2_tests.c +++ b/tools/testing/selftests/kvm/x86_64/sev_init2_tests.c @@ -105,11 +105,11 @@ void test_features(uint32_t vm_type, uint64_t supported_features) int i; for (i = 0; i < 64; i++) { - if (!(supported_features & (1u << i))) + if (!(supported_features & BIT_ULL(i))) test_init2_invalid(vm_type, &(struct kvm_sev_init){ .vmsa_features = BIT_ULL(i) }, "unknown feature"); - else if (KNOWN_FEATURES & (1u << i)) + else if (KNOWN_FEATURES & BIT_ULL(u)) test_init2(vm_type, &(struct kvm_sev_init){ .vmsa_features = BIT_ULL(i) }); }