From nobody Wed Dec 17 05:47:49 2025 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 0CD392989A0 for ; Thu, 15 May 2025 12:06:27 +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=1747310788; cv=none; b=auBqjADogW2KlPqFChEI8bVadAGJkDQPowM7tfsQK2y9xfhxIkyzpO7d6iFLrohfNAfKMFNqSc9oKrlOv/zPJXy7Ky9XQUh5NT4PW8nJ15ykT4XU4wWrKUF+N1FmVJ9+KfzRV/nSQRNxXSeKe8LP6WOobRM4jr4ShR7RhbunaWI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747310788; c=relaxed/simple; bh=UCbsGHgeAVdQRwSUcWCgwKGnxF0ODFn4ZhmD0uVukdk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=EEoTDugMXEq5ZpvFmbOAE4DLEtUeWogqTvRb47fony7ye1oDJCSIn8S6zJhe0dfkXvDCRcmp50ggB67jpbMjoWlJF2Wsnp050GQFpUU3hsLX+6vNe5aKv2uUQWFJODewl+gjhRFuuXqxsDX7iy8XfKfs1sqH3yzAjGaYwdYXgts= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RSKJhPcp; 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="RSKJhPcp" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 71E35C4CEE7; Thu, 15 May 2025 12:06:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747310787; bh=UCbsGHgeAVdQRwSUcWCgwKGnxF0ODFn4ZhmD0uVukdk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RSKJhPcpa0fwuCP03pcH3en5doWhK7bZVjjz2I5oy+ZKljVlJOfiBQRPcMPR6pqz9 NeMXPBop4iKv9aT/ZE4fT/3flrpaW4RSJ4hKP3L1BoA3OzjxdMRYzoowb11DyQuhle HKysW9Z3aw3eD3fxJJb5y4mydWLlmBRAq0ToQt3kLJDuFGqii5WWG7RbJ5HQW9wY3c nA0Jg7TU/7sWXZl00w12nFOIwLewuHhwl+VP6h2l7IlKo8zkFIioT9du/4mBgwXk11 KAVVMgee6VUGTW+cQHcAbFmR9B8bPKP1R004anHOfU+hO8+U0GfPJSaEUgxlKF1hu3 ao5kzugGtU0Jg== From: Ingo Molnar To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andy Shevchenko , Arnd Bergmann , Borislav Petkov , Juergen Gross , "H . Peter Anvin" , Kees Cook , Linus Torvalds , Mike Rapoport , Paul Menzel , Peter Zijlstra , Thomas Gleixner , David Woodhouse Subject: [PATCH 09/32] x86/boot/e820: Call the PCI gap a 'gap' in the boot log printout Date: Thu, 15 May 2025 14:05:25 +0200 Message-ID: <20250515120549.2820541-10-mingo@kernel.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250515120549.2820541-1-mingo@kernel.org> References: <20250515120549.2820541-1-mingo@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" It is a bit weird and inconsistent that the PCI gap is advertised during bootup as 'mem'ory: [mem 0xc0000000-0xfed1bfff] available for PCI devices ^^^ It's not really memory, it's a gap that PCI devices can decode and use and they often do not map it to any memory themselves. So advertise it for what it is, a gap: [gap 0xc0000000-0xfed1bfff] available for PCI devices Signed-off-by: Ingo Molnar Cc: Andy Shevchenko Cc: Arnd Bergmann Cc: David Woodhouse Cc: H. Peter Anvin Cc: Kees Cook Cc: Linus Torvalds Cc: Mike Rapoport (Microsoft) --- arch/x86/kernel/e820.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 0a324d0db60e..d85623c9ee1b 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -741,7 +741,7 @@ __init void e820__setup_pci_gap(void) */ pci_mem_start =3D gapstart; =20 - pr_info("[mem %#010lx-%#010lx] available for PCI devices\n", + pr_info("[gap %#010lx-%#010lx] available for PCI devices\n", gapstart, gapstart + gapsize - 1); } =20 --=20 2.45.2