From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f202.google.com (mail-pf1-f202.google.com [209.85.210.202]) (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 DBE423644D1 for ; Fri, 3 Apr 2026 15:22:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775229748; cv=none; b=m+z7Wcd9gR5YE2oFju07a0+yZXaEJQA1H1WecMgzuKRiwbwueoq0aABNy0sxHCJ3fp7ut16zfrGYdBtuzxuZZwtm8l0UvcQUTMG1TQ8ERKmu7krlcSRCaZYFfIIpV5EnZvf7iHcrmbTI4TeD1VlSxH+qY3gIx1dUe0ccLzHqYMY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775229748; c=relaxed/simple; bh=DFBq3w/+92JvVnCUbNwiX8XBReWt3DAvnjGNuqvEFVI=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=Lc3EVg52cwYBsgJYut025N0aQ1m+lGVb2ZS1gn9Pdh3G1cuBJiBzf07+0bcjmZcfRaoEu7y7eHTHsyI47B8VH03xKQwJ34Japu7SiwwnDzCYgftWsozyqO/6RVxH89rYTsy6hOdrmWwk8HHeEAtc+9oiJM73pu07FmbyvxtJyJk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=ZxZqxfi2; arc=none smtp.client-ip=209.85.210.202 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--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="ZxZqxfi2" Received: by mail-pf1-f202.google.com with SMTP id d2e1a72fcca58-82cf8dcd079so1574471b3a.1 for ; Fri, 03 Apr 2026 08:22:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1775229746; x=1775834546; darn=lists.linux.dev; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=rpqHqNyfK10lqPQLcRaczDLbjeG2pjSQT2XmZnmBEwU=; b=ZxZqxfi2vZIJdKkvirB9PpNlJfJ4QImq/nSPgwj2pV62t9fY+UbDiuL9ScFzg97XE/ f6pPFxx8ph5nXkpabhADgRXarXBV0ZXUbGzJjxkTtXriFjTnlMxF1xHJFIILKBBJ+9XW d/hZrwN2kgjspNdnsOctbco/S+tHNZavKk3qy3q1xCTY8SCiTNVWwKuqOk+NnYVFiiyb 4E3MSXuCm/InpdqxBxnO3DKRqPG4DqooRAS8h5WHDksKyMUN14LCoij6Oaqpn5dg59ZI WZc9L2aJ96UOxbVYmQIwKMDjY5hDz0l2pdBoqBooBoITKejWryJbp9SYUiEWecDmpZSy +vig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775229746; x=1775834546; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=rpqHqNyfK10lqPQLcRaczDLbjeG2pjSQT2XmZnmBEwU=; b=DdPv5nvxnkCxrBAzQVxWWd+MWkWFIpewyQjSZWmR3zjF8qY9Fbr+pjB8hNHrR5n+rr EWp6yDaXQfmxQSZ4mbRmiRrEa1EAJetJFHljKhpd5PLovk4EeeB4uJznfJoicjQZerMY iPwSuvQHNm+cp0p7TCtN/NIAvkvmK7B8CMUFsHPNZWXHDQYIhGusm/SHZXFYiXWcgo+V v4aIhRZavh2fWdmtPtSIxy5/ZowHWgWAzNv7VtabGfvJX8YHOoa1Rc3YZKuwiYDDYgFv 3WWsrdhVsoU59WsWG8Z6hfgrODLoGZ98HR9QgrLBJInMumNr5ELnEVxkmtCUUa4hgKUR yPRg== X-Forwarded-Encrypted: i=1; AJvYcCVsVVbtCvgBc+87AHMFNcGXgV0zJ3LfyWPlN6/MN9/3fNKttDta5PRSKTaokMS2cEdNkikds76n+bZ+@lists.linux.dev X-Gm-Message-State: AOJu0Yx//2v9OoB1bAVWA1AIFW+fQIFSLOSH9k/4InaGJ+aU87qHYrgU HgmK1siDa2qDuLoKl9raU7/ffW3q98sSY5fM1q1wN8Eg8V3lB2oF7KLC04nPdOuqSpYD+xlhzIw kV9YvJg== X-Received: from pfbfc19.prod.google.com ([2002:a05:6a00:2e13:b0:824:aec2:e5eb]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a00:1705:b0:828:d9a1:c5f9 with SMTP id d2e1a72fcca58-82d0db53ec9mr3313449b3a.33.1775229745970; Fri, 03 Apr 2026 08:22:25 -0700 (PDT) Date: Fri, 3 Apr 2026 08:22:24 -0700 In-Reply-To: <20260120203937.1447592-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260120203937.1447592-1-seanjc@google.com> Message-ID: Subject: Re: [PATCH] x86/tdx: Use pg_level in TDX APIs, not the TDX-Module's 0-based level From: Sean Christopherson To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Kiryl Shutsemau , Paolo Bonzini , linux-kernel@vger.kernel.org, linux-coco@lists.linux.dev, kvm@vger.kernel.org, Kai Huang , Rick Edgecombe , Yan Zhao , Vishal Annapurve , Ackerley Tng Content-Type: text/plain; charset="us-ascii" On Tue, Jan 20, 2026, Sean Christopherson wrote: > Rework the TDX APIs to take the kernel's 1-based pg_level enum, not the > TDX-Module's 0-based level. The APIs are _kernel_ APIs, not TDX-Module > APIs, and the kernel (and KVM) uses "enum pg_level" literally everywhere. > > Using "enum pg_level" eliminates ambiguity when looking at the APIs (it's > NOT clear that "int level" refers to the TDX-Module's level), and will > allow for using existing helpers like page_level_size() when support for > hugepages is added to the S-EPT APIs. > > No functional change intended. > > Cc: Kai Huang > Cc: Dave Hansen > Cc: Rick Edgecombe > Cc: Yan Zhao > Cc: Vishal Annapurve > Cc: Ackerley Tng > Signed-off-by: Sean Christopherson > --- This still applies cleanly, any chance this can be picked up for 7.1 to avoid prototype conflicts in ongoing work?