From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) (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 0E79122083 for ; Thu, 19 Mar 2026 01:54:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773885268; cv=none; b=eX0au1eTLt0ylbO1rpdbeHbgS3P42NDlrwUHiTETMK4sAjExS4sRkticJ76sGw9CMAi1TDvtHYYwP62Aon96frhPYkZoQuMyRQs18KaLn4zOVii88lczrfsVMx7hMtXLJXsV4k9F0vK/s3o/KEypz3fffY1eYqq7pI0xbNK1HoA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773885268; c=relaxed/simple; bh=Qh2vnbr/G0FbsYPFv/wdBgpWST+Ly6gdwfvFztr3eTI=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=hpCk6GT+X4Cf6cnnJJ8MKgHIfIPT8NJff0/YMJsKsdLisIQQAzbSxbA45GZtbegHaG1EiDdA3V568QoksupKvaJDYzNsDRw2xw8U/QLpXZXKrz8IqBnfunGbH6bbENZqqGzGT1H5k1AxLbHMH2pS0lXJhLmRYzvxYNE4r0rqW94= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--morbo.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=bubSGhRI; arc=none smtp.client-ip=209.85.215.201 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--morbo.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="bubSGhRI" Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-c74217894d9so378105a12.2 for ; Wed, 18 Mar 2026 18:54:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1773885263; x=1774490063; darn=lists.linux.dev; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=IphLt+X2YEUN0QZS0TcE47jvN82gWZ8dBXENMhkBUfg=; b=bubSGhRI++o7ye5+J+w9D72ihq0M2q+VegVIFPhoGLNUqLiVAti8XNFE+K2hdM4Z/U G23hCwRfNy5VUcB0fstq2El3PzW/wt3mtSby5iChJclbD7YsTcVuDeajn73adYoLBns7 TPO7fv0CMf6VeLYaVDceRXUEWa5A9YIY3H9n/z82KZzzN/2Wo2HLs+1nMg00fpts0Tf0 4uHftTz41sHQwFQXM/K6Wot3GBYecVSPCcYV1qJWl9DOMyqAFo3zemPm04b6ov+v5HY9 7YYCgXLgELvXh+Zeqx1lGgr2cT+jv05bt9vsDDRoI0qNfVu8IABeX2HXqbNMsE2d5oHT DtkA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773885263; x=1774490063; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=IphLt+X2YEUN0QZS0TcE47jvN82gWZ8dBXENMhkBUfg=; b=UbKMFPFcRHrIygt8+bV1QCpZe3+yYklGDhNjZR+mto/uZdxCm/dvSNOdSfxJK8192w 71GZ5j5PqipptEzBKFMYC9oXIuLeXprR2y1KyN72809/OQHXVLYLoQtXKmIvqfHnCwoU o2QvmhOeazMkBHoq69QvsTt2VbGttMzV5jNCHncSkGtvgDFWUjQkO42x9YKWvfMWtTOh fjr8rYlp6KSIDz3AsGQp9WjMvIdrIGmyRenGJKIItufYiThmFlIp4dC1LoCZEwilGVBL gOqBojXYVo9Zp6OmJnwWsYHJh5Z1Wonq1CMWlDDolBeQla5Hqw7cVWbJAL6gU6lR9h5e 1akQ== X-Forwarded-Encrypted: i=1; AJvYcCWTVNBgho5+0BsIoUwl/e3LVTOo+43lWrn14k5QsEsIMRYEPvLCy62dTW0AVjPU1wyQeAqu79Q=@lists.linux.dev X-Gm-Message-State: AOJu0Yyec+GEDeqFodoryTLZzDT0Lo1aaY0f+yIlR7ZWFzrXBYZm49/i 0EknBmVfshhrF+TLCarVr1IPCJM1ItQRiT3Drv7pImGCbc2Qt+eET3LIccdEvtplSs+YoAEeUUg x X-Received: from pgbbz36.prod.google.com ([2002:a05:6a02:624:b0:c6e:1f6a:ef71]) (user=morbo job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a21:b84:b0:398:787c:d2e4 with SMTP id adf61e73a8af0-39b99d4bd9amr5301199637.17.1773885262711; Wed, 18 Mar 2026 18:54:22 -0700 (PDT) Date: Thu, 19 Mar 2026 01:54:10 +0000 Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.53.0.851.ga537e3e6e9-goog Message-ID: <20260319015418.2871262-1-morbo@google.com> Subject: [PATCH] KVM: arm64: vgic: Annotate struct vgic_dist with __counted_by_ptr From: Bill Wendling To: linux-kernel@vger.kernel.org Cc: Bill Wendling , Marc Zyngier , Oliver Upton , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Gogul Balakrishnan , Arman Hasanzadeh , Kees Cook , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, codemender-patching+linux@google.com Content-Type: text/plain; charset="UTF-8" Add the __counted_by_ptr attribute to the spis pointer field in struct vgic_dist. This pointer field points to an array of struct vgic_irq elements, and the number of elements is tracked by the nr_spis field within the same structure. The nr_spis field is initialized in vgic_init() (or earlier via userspace) before the spis array is allocated in kvm_vgic_dist_init(). The nr_spis value remains constant during the lifetime of the spis allocation, making it a suitable counter for the array. This patch was generated by CodeMender and reviewed by Bill Wendling. Tested with the KVM selftests. Signed-off-by: Bill Wendling --- Cc: Marc Zyngier Cc: Oliver Upton Cc: Joey Gouly Cc: Suzuki K Poulose Cc: Zenghui Yu Cc: Gogul Balakrishnan Cc: Arman Hasanzadeh Cc: Kees Cook Cc: linux-arm-kernel@lists.infradead.org Cc: kvmarm@lists.linux.dev Cc: linux-kernel@vger.kernel.org Cc: codemender-patching+linux@google.com --- include/kvm/arm_vgic.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h index f2eafc65bbf4..1cca87623d92 100644 --- a/include/kvm/arm_vgic.h +++ b/include/kvm/arm_vgic.h @@ -284,7 +284,7 @@ struct vgic_dist { /* Wants SGIs without active state */ bool nassgireq; - struct vgic_irq *spis; + struct vgic_irq *spis __counted_by_ptr(nr_spis); struct vgic_io_device dist_iodev; struct vgic_io_device cpuif_iodev; -- 2.53.0.851.ga537e3e6e9-goog