From patchwork Sat Apr 5 00:10:40 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raghavendra Rao Ananta X-Patchwork-Id: 14039030 Received: from mail-io1-f73.google.com (mail-io1-f73.google.com [209.85.166.73]) (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 2C595383 for ; Sat, 5 Apr 2025 00:10:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743811846; cv=none; b=N+VGJUSLDp+/BCWkTA5RYRGT7PLbKqo9wNFbVrKvFsaDIjxg7q3U+PlGjXXy5dx9HG3T8jnLwZsW1DqikPPTOUaToOgjyHKyCHapqOctXMlbT6PFsmPtFMq2a3jKbf3hotmRrtEeRdtxR9MkWM37mzrHR6c/e7+KbZt0okB0lXo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743811846; c=relaxed/simple; bh=9OLt6CxBIy6kqbClRlpyjmlyZ3nlZBIi/b6vLEkxDsk=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=kOLmu2rWJ59IeufD0zy8KH+qiT9k8whUYpF/rYGAPePfIROB1kB6TPQa6jjmsvImvyYEZzLixWjj2wlLiqntX1zywy2Lqt/1ZSU0dC8xpW5q9BFC5jPmj+eW3PIIJCNhbP+4HiDDAd9BMf+xxb2L1nhq5Iot01VpV2g4QDAe8MY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--rananta.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=qbmowckC; arc=none smtp.client-ip=209.85.166.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--rananta.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="qbmowckC" Received: by mail-io1-f73.google.com with SMTP id ca18e2360f4ac-8610d7ec4d3so468467339f.0 for ; Fri, 04 Apr 2025 17:10:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1743811844; x=1744416644; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=2DNvYO0bTfj7X+8PQ13cmGZGTNT4dkdJknnzMC9cIXk=; b=qbmowckCZVnv6vID2Wd1kKSBQ6IxjJUhQ+3TsMqsu5z9LhKAOxiphE/L3+sK3cMqKT EVgABvnXzUHDebplvyC4+TnY4WQPG3tGsBkP5lw04hLY2z7BKKkuPTsQGTprqK+R9I16 lLSLrwqOF4bY0R/DnDin1y3/L/IZyZyLuqQKehM6Wr9jPG7OiHwczmB1sq+l5GipMZkt T5coN4Kh6Gn5tyrkhjmJbO9+FRsRpPa1Zzy86TbqmjBafeKGLIMsGqXkNcvP2oq9Tx8r Dvh+PAslSaw+sqQPbE70KthqqXQaZ3hNHhGjNMHcRX/azXDcwc2AawB0sIalftLGrnrt 3coQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1743811844; x=1744416644; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=2DNvYO0bTfj7X+8PQ13cmGZGTNT4dkdJknnzMC9cIXk=; b=EU9cYq1kWwRi7rGd9/CLDzIbKW2lMKFHR5b1YDqYScgPEA5TXc6y6qrt/q/yX6z+3A P1vFALIRgeDiLKKRwTB6yi2oaKgPDXk61YTrVSt6qINfsikrpQbwz+vrD7IcNIL1Ojek X8trpOwCkU1fcPOzaRurTaBOrTDiv84tq4nuOXP834prHOCfaZRdwiT9RgIo9S5k+Y2L V+TWpVwrXM5F4bhsPnw3M33DQMynlxJ/kuNt4jaP+M+mo13E7RoInsRynveMcpa9jjB/ N2H2hRmZcx9MTpzo6JF7lDOcFV/LN0mIHQ0hKIHNJybQh8cZdKKTjKxiCdue8yt4LzBP ArXg== X-Forwarded-Encrypted: i=1; AJvYcCWzxJmcvfgvZ52hdKnH2pRsmYP9RSQI8Ia0907MOUBevSv6vJcPDZshhmrKWUPvbmvQQAw=@vger.kernel.org X-Gm-Message-State: AOJu0YxMSxmIKUgzf198tbcRgMAy789NoARoY+UO5hYFeV0AjQmT3f6K 7RZGqpcDqJJAOahV6CplH0DkMAZJ54kqMSu4UHCofFi0g8RBS+/cJcUYq4kUlcj2RTyxy5ILy8R NMKcDHg== X-Google-Smtp-Source: AGHT+IESzYBYMsy8TcNeSXmOCuIMcY0rfkLLxruZnkYbIer8gFLQRo6rMLnXbA8I1jN134maNpjGU7IZC4nb X-Received: from iobbk9.prod.google.com ([2002:a05:6602:4009:b0:85b:3e10:d317]) (user=rananta job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6602:3a12:b0:85d:a211:9883 with SMTP id ca18e2360f4ac-8611c3bae5bmr467620239f.10.1743811844346; Fri, 04 Apr 2025 17:10:44 -0700 (PDT) Date: Sat, 5 Apr 2025 00:10:40 +0000 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.49.0.504.g3bcea36a83-goog Message-ID: <20250405001042.1470552-1-rananta@google.com> Subject: [PATCH v2 0/2] KVM : selftests: arm64: Explicitly set the page attrs to Inner-Shareable From: Raghavendra Rao Ananta To: Oliver Upton , Marc Zyngier Cc: Raghavendra Rao Anata , Mingwei Zhang , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, kvm@vger.kernel.org The series fixes a conflict in memory attributes in some implementations, such as Neoverse-N3, that causes a data abort in guest EL1 with FSC 0x35 (IMPLEMENTATION DEFINED fault (Unsupported Exclusive or Atomic access)). Patch-1 is a cleanup patch that replaces numbers (and comments) to using proper macros for hardware configuration, such as registers and page-table entries. Patch-2 fixes the actual bug and sets the page attrs to Inner-Shareable by default for the VMs created in the selftests. More details are presented in the commit text. v1: https://lore.kernel.org/all/20250404220659.1312465-1-rananta@google.com/ v1 -> v2: Addressed Oliver's comments (thank you) - Moved the TCR_* macros from tools' sysreg.h to selftests' local processor.h in patch-1. - Adjsted the citations to describe the issue more appropriately in patch-2. Raghavendra Rao Ananta (2): KVM: selftests: arm64: Introduce and use hardware-definition macros KVM: selftests: arm64: Explicitly set the page attrs to Inner-Shareable .../selftests/kvm/arm64/page_fault_test.c | 2 +- .../selftests/kvm/include/arm64/processor.h | 67 +++++++++++++++++-- .../selftests/kvm/lib/arm64/processor.c | 60 ++++++++++------- 3 files changed, 96 insertions(+), 33 deletions(-) base-commit: 38fec10eb60d687e30c8c6b5420d86e8149f7557