From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4215EC47422 for ; Thu, 25 Jan 2024 16:46:20 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.671662.1045130 (Exim 4.92) (envelope-from ) id 1rT2rk-0006kx-IE; Thu, 25 Jan 2024 16:46:12 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 671662.1045130; Thu, 25 Jan 2024 16:46:12 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1rT2rk-0006ko-FG; Thu, 25 Jan 2024 16:46:12 +0000 Received: by outflank-mailman (input) for mailman id 671662; Thu, 25 Jan 2024 16:46:11 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1rT2rj-0006Nc-3H for xen-devel@lists.xenproject.org; Thu, 25 Jan 2024 16:46:11 +0000 Received: from mail-lj1-x232.google.com (mail-lj1-x232.google.com [2a00:1450:4864:20::232]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 3d1a6ab1-bba1-11ee-8a42-1f161083a0e0; Thu, 25 Jan 2024 17:46:08 +0100 (CET) Received: by mail-lj1-x232.google.com with SMTP id 38308e7fff4ca-2cf205dc075so24520841fa.2 for ; Thu, 25 Jan 2024 08:46:08 -0800 (PST) Received: from [10.156.60.236] (ip-037-024-206-209.um08.pools.vodafone-ip.de. [37.24.206.209]) by smtp.gmail.com with ESMTPSA id 5-20020a6b1505000000b007bf2c9bbdd6sm7616710iov.50.2024.01.25.08.46.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 25 Jan 2024 08:46:07 -0800 (PST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 3d1a6ab1-bba1-11ee-8a42-1f161083a0e0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=google; t=1706201168; x=1706805968; darn=lists.xenproject.org; h=content-transfer-encoding:in-reply-to:autocrypt:from:references:cc :to:content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=+2zNLH228gIijs1yWo5a80VfczrzNbWVli54+hLosIs=; b=R7+wgcJQNz6HwgnzuMgmxVCXuMaqFQuKE3V8EsSoVrhWECiFEckWXRQKN6l0leqUHG qrGaQr5gTkHs1f8Z74xmX77qyTPd2ZWiO2DenrY3proD7q7bDHlJrBVKcOehXeINGuCc 6rNqVBUg6okgPJaNWAUczhS0OJI4SnukgI8vH2iVfqDwxvtZawm3tD6+063T8VxSBsvq pV1gTZMiLnmETrWf24JT6Yof18Qk1UaHO6h3Ak7VSbdD9BDrmfuUOUoW5glyy4EY6G/2 N+yfJGTeJZl4JMZiABNqVZdyajHeltkXIZ6fFo7IUAlGU93l33d1OC/ATaa0nALRKBPA CCaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706201168; x=1706805968; h=content-transfer-encoding:in-reply-to:autocrypt:from:references:cc :to:content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=+2zNLH228gIijs1yWo5a80VfczrzNbWVli54+hLosIs=; b=AWKZ7UAdwwxxG0IML60V/ahasF5TW4jLFitxZ6SxCWCQnNylwOuPwJnvlw9gaP72u9 KQPtYr1e/tIZNLMeP7YC5ZZVpHJ6MGJfER30htYXlgotMsPdTyx0FwLkqqQWuGgY7xML 5RceGb3wFHs66W4PLw6FvTiT/54QWh+GyFBADSz6dYe8q0i2Rj06ns47mX/2PwbtTeL2 9t9Sdbpxx4D3Bf7zVAj0iVmmtW6+5KJ7WssUHMbB+YqyP4rD/izn+yp6TYreCTkAUQhF 95ZyHDkZeJnhWA3if9aixMaZbKNyNRangW4FE3VWbNS2BzXvsU6hYdd+hW6K5F5R16yN BDNQ== X-Gm-Message-State: AOJu0YwyFHhetX2z4gvSurPE6Xro4XZiJg+MwWESikfzjBKa1bxf+ldc IlmNvvXe+4JuOexi2fb+4wiLQ4icQUnrwnaVaRE4gyDaEhvwqEHvMjcIf1YpBQ== X-Google-Smtp-Source: AGHT+IHWdPur9nNqDN1s5T+7s7ULD6UTGdc4aj6G8KXAuSGl/4q6QjscWQMEm9tA6b8bcN9vgP9COA== X-Received: by 2002:a05:651c:cc:b0:2cb:2d48:334 with SMTP id 12-20020a05651c00cc00b002cb2d480334mr659742ljr.60.1706201167993; Thu, 25 Jan 2024 08:46:07 -0800 (PST) Message-ID: <8bfc95ea-9d0b-4ef5-8179-5e345a318af4@suse.com> Date: Thu, 25 Jan 2024 17:46:04 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 1/3] x86/iommu: remove regions not to be mapped Content-Language: en-US To: Roger Pau Monne Cc: Paul Durrant , Andrew Cooper , Wei Liu , xen-devel@lists.xenproject.org References: <20240124172953.29814-2-roger.pau@citrix.com> <20240125132626.34553-1-roger.pau@citrix.com> From: Jan Beulich Autocrypt: addr=jbeulich@suse.com; keydata= xsDiBFk3nEQRBADAEaSw6zC/EJkiwGPXbWtPxl2xCdSoeepS07jW8UgcHNurfHvUzogEq5xk hu507c3BarVjyWCJOylMNR98Yd8VqD9UfmX0Hb8/BrA+Hl6/DB/eqGptrf4BSRwcZQM32aZK 7Pj2XbGWIUrZrd70x1eAP9QE3P79Y2oLrsCgbZJfEwCgvz9JjGmQqQkRiTVzlZVCJYcyGGsD /0tbFCzD2h20ahe8rC1gbb3K3qk+LpBtvjBu1RY9drYk0NymiGbJWZgab6t1jM7sk2vuf0Py O9Hf9XBmK0uE9IgMaiCpc32XV9oASz6UJebwkX+zF2jG5I1BfnO9g7KlotcA/v5ClMjgo6Gl MDY4HxoSRu3i1cqqSDtVlt+AOVBJBACrZcnHAUSuCXBPy0jOlBhxPqRWv6ND4c9PH1xjQ3NP nxJuMBS8rnNg22uyfAgmBKNLpLgAGVRMZGaGoJObGf72s6TeIqKJo/LtggAS9qAUiuKVnygo 3wjfkS9A3DRO+SpU7JqWdsveeIQyeyEJ/8PTowmSQLakF+3fote9ybzd880fSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPsJgBBMRAgAgBQJZN5xEAhsDBgsJCAcDAgQVAggDBBYC AwECHgECF4AACgkQoDSui/t3IH4J+wCfQ5jHdEjCRHj23O/5ttg9r9OIruwAn3103WUITZee e7Sbg12UgcQ5lv7SzsFNBFk3nEQQCACCuTjCjFOUdi5Nm244F+78kLghRcin/awv+IrTcIWF hUpSs1Y91iQQ7KItirz5uwCPlwejSJDQJLIS+QtJHaXDXeV6NI0Uef1hP20+y8qydDiVkv6l IreXjTb7DvksRgJNvCkWtYnlS3mYvQ9NzS9PhyALWbXnH6sIJd2O9lKS1Mrfq+y0IXCP10eS FFGg+Av3IQeFatkJAyju0PPthyTqxSI4lZYuJVPknzgaeuJv/2NccrPvmeDg6Coe7ZIeQ8Yj t0ARxu2xytAkkLCel1Lz1WLmwLstV30g80nkgZf/wr+/BXJW/oIvRlonUkxv+IbBM3dX2OV8 AmRv1ySWPTP7AAMFB/9PQK/VtlNUJvg8GXj9ootzrteGfVZVVT4XBJkfwBcpC/XcPzldjv+3 HYudvpdNK3lLujXeA5fLOH+Z/G9WBc5pFVSMocI71I8bT8lIAzreg0WvkWg5V2WZsUMlnDL9 mpwIGFhlbM3gfDMs7MPMu8YQRFVdUvtSpaAs8OFfGQ0ia3LGZcjA6Ik2+xcqscEJzNH+qh8V m5jjp28yZgaqTaRbg3M/+MTbMpicpZuqF4rnB0AQD12/3BNWDR6bmh+EkYSMcEIpQmBM51qM EKYTQGybRCjpnKHGOxG0rfFY1085mBDZCH5Kx0cl0HVJuQKC+dV2ZY5AqjcKwAxpE75MLFkr wkkEGBECAAkFAlk3nEQCGwwACgkQoDSui/t3IH7nnwCfcJWUDUFKdCsBH/E5d+0ZnMQi+G0A nAuWpQkjM1ASeQwSHEeAWPgskBQL In-Reply-To: <20240125132626.34553-1-roger.pau@citrix.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 25.01.2024 14:26, Roger Pau Monne wrote: > --- a/xen/arch/x86/setup.c > +++ b/xen/arch/x86/setup.c > @@ -2138,6 +2138,54 @@ int __hwdom_init xen_in_range(unsigned long mfn) > return 0; > } > > +int __hwdom_init remove_xen_ranges(struct rangeset *r) > +{ > + paddr_t start, end; > + int rc; > + > + /* S3 resume code (and other real mode trampoline code) */ > + rc = rangeset_remove_range(r, PFN_DOWN(bootsym_phys(trampoline_start)), > + PFN_DOWN(bootsym_phys(trampoline_end) - 1)); With the understanding that we've settled on us not quite being at the point where only one page of the trampoline is kept mapped: Reviewed-by: Jan Beulich Jan