From nobody Fri Oct 18 08:32:25 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=pass(p=quarantine dis=none) header.from=suse.com ARC-Seal: i=1; a=rsa-sha256; t=1719996362; cv=none; d=zohomail.com; s=zohoarc; b=RAPyGDyiJqyfBfn3ZfNSr72PBHNUdk9xVxF2/GAoHFWNyQ4s6HUjLJ28KmNnhxKZCWHtPHz6L6k/MS1q0NWsYJeS1MUJC/JtvfVyz0fH93MvCnbus3jPDIqYAT5gJ4t0YlRw1aLPuruYRFotFDzW5rdK/lBxYljYHJkmsZc2R74= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1719996362; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=EcfcQ+bs+vIY1uuTMe6ACJLGBx+6P+7pissTcD0vBvA=; b=YrkQ/hv9FkZbCzgPKA/NkI+Bz36B81KfgswwaGlOKquVmhMt4BP1QvvRE1vJJUMe8szX4TEyI/H1ZPMrmUhDwfaj6czysQP+0Dh2RvmYMCJ4vMvEJvsKpoiGcY9y4WQcx49lsQ6bMIiybUutXW+rb1IXmPwHH1P564b2muNsyG0= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 171999636258279.19733742161316; Wed, 3 Jul 2024 01:46:02 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.752806.1161041 (Exim 4.92) (envelope-from ) id 1sOvcc-0007iI-SH; Wed, 03 Jul 2024 08:45:50 +0000 Received: by outflank-mailman (output) from mailman id 752806.1161041; Wed, 03 Jul 2024 08:45:50 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1sOvcc-0007iB-PW; Wed, 03 Jul 2024 08:45:50 +0000 Received: by outflank-mailman (input) for mailman id 752806; Wed, 03 Jul 2024 08:45:49 +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 1sOvcb-00078r-Iw for xen-devel@lists.xenproject.org; Wed, 03 Jul 2024 08:45:49 +0000 Received: from mail-lj1-x22b.google.com (mail-lj1-x22b.google.com [2a00:1450:4864:20::22b]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id a562c64e-3918-11ef-bbf9-fd08da9f4363; Wed, 03 Jul 2024 10:45:48 +0200 (CEST) Received: by mail-lj1-x22b.google.com with SMTP id 38308e7fff4ca-2ec3f875e68so57024141fa.0 for ; Wed, 03 Jul 2024 01:45:49 -0700 (PDT) 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 d9443c01a7336-1fac1598cfbsm97873805ad.250.2024.07.03.01.45.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 03 Jul 2024 01:45:48 -0700 (PDT) X-Outflank-Mailman: Message body and most headers restored to incoming version 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: a562c64e-3918-11ef-bbf9-fd08da9f4363 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=google; t=1719996348; x=1720601148; darn=lists.xenproject.org; h=content-transfer-encoding:in-reply-to:autocrypt:content-language :references:cc:to:from:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to; bh=EcfcQ+bs+vIY1uuTMe6ACJLGBx+6P+7pissTcD0vBvA=; b=WyFiO969rwhEPZulsGDHL1rQpuclQyvtyvnHPuPOVmdg7mX1dNAwLk6IY6wnYkaOeq T53Pa7Tm8huBQhEYPYHNDG7Za+eTLp4fTRg2tJ2LG7u+HlX2QHcuDPPd6Stbg2pI27I7 q7yScyYq5jLJW4aOHeAC5+w71Vh6XivKxb7rL/XZukN+cgEzOWv8pMXwq3gHiWHlyMwZ evHWloottmdTPtvFuEhQ+SGBDiODzOvBFqV4w93Nz8FJLWIRvUBzyqfPHL6mHlzrC65H j0Ms/w1x/LxORUhGmcsUO9KT7WvxJB6o4+jiCOY/36VWuP3YHpJ3b7MArvy4xvBLdogr 0doQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719996348; x=1720601148; h=content-transfer-encoding:in-reply-to:autocrypt:content-language :references:cc:to:from:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=EcfcQ+bs+vIY1uuTMe6ACJLGBx+6P+7pissTcD0vBvA=; b=pl+yytNZAPbY4rMBsQcerqOVMbYX4/k0HrlljbqCx+8eavdnfZzGmtsGfIeRqjeBK6 BjB1MT6BV/4YPnfOjYQYI/gTagk75fTClA0FQlvXWjCTwoCvHleA+5u0ci47sPpiCfYk 6m1KStrup7fohQV8d4Gd902v/qqdj1FP0jCSS574DqCuqg81eC8RzLzEA6r9zwEa7orz BwaPdKhZm1pqNJ56M1i0dkQf2PrIQSBRXD+QSzl0+rJvaIMyhVe0U2DFQJp4NRWQOhDx tzWKrHOvKHG8TxYtvnzAfJ6MAnKxZGiWLJdoP1I9qpKsV5LHvWJTUtdztDrLkPy6Vk9E QlHg== X-Gm-Message-State: AOJu0YyKtYpwDFn1OGqMRvSSN4wce3KCoOcduCfwuG0BpJsOErFDVI4K Dr1XMx1WGtdKTND9RxhrWxZWbcM9+8J95vH89UPE6lxiXVzLHLU6otOi+mzeSuBJrnKLHnpAbrI = X-Google-Smtp-Source: AGHT+IH6KfGmXMpNReMTfMlwQy8KMoTvARYUf9ANCuVa5uDQa0xWUqbHuISwmiGfR0RRf0AW/X+4YQ== X-Received: by 2002:a2e:be9b:0:b0:2ec:3dd4:75f7 with SMTP id 38308e7fff4ca-2ee5e6c9a24mr75032071fa.47.1719996348594; Wed, 03 Jul 2024 01:45:48 -0700 (PDT) Message-ID: Date: Wed, 3 Jul 2024 10:45:41 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH v5 for-4.19? 2/2] cmdline: "extra_guest_irqs" is inapplicable to PVH From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , Julien Grall , Stefano Stabellini , Wei Liu , =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= , Oleksii Kurochko References: <789d567b-db3a-4c4d-9eac-f73232777244@suse.com> Content-Language: en-US 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: <789d567b-db3a-4c4d-9eac-f73232777244@suse.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @suse.com) X-ZM-MESSAGEID: 1719996364063100001 PVH in particular has no (externally visible) notion of pIRQ-s. Mention that in the description of the respective command line option and have arch_hwdom_irqs() also reflect this (thus suppressing the log message there as well, as being pretty meaningless in this case anyway). Suggested-by: Roger Pau Monn=C3=A9 Signed-off-by: Jan Beulich Reviewed-by: Roger Pau Monn=C3=A9 --- v5: Remove has_pirq() check; update comment accordingly. v4: New. --- a/docs/misc/xen-command-line.pandoc +++ b/docs/misc/xen-command-line.pandoc @@ -1183,7 +1183,8 @@ versa. For example to change dom0 witho hardware domain is architecture dependent. The upper limit for both value= s on x86 is such that the resulting total number of IRQs can't be higher than 3= 2768. Note that specifying zero as domU value means zero, while for dom0 it means -to use the default. +to use the default. Note further that the Dom0 setting has no useful mean= ing +for the PVH case; use of the option may have an adverse effect there, thou= gh. =20 ### ext_regions (Arm) > `=3D ` --- a/xen/arch/x86/io_apic.c +++ b/xen/arch/x86/io_apic.c @@ -2670,6 +2670,10 @@ unsigned int __hwdom_init arch_hwdom_irq if ( is_system_domain(d) ) return max_irqs; =20 + /* PVH (generally: HVM) can't use PHYSDEVOP_pirq_eoi_gmfn_v{1,2}. */ + if ( is_hvm_domain(d) ) + return nr_irqs; + if ( !d->domain_id ) n =3D min(n, dom0_max_vcpus()); n =3D min(nr_irqs_gsi + n * NR_DYNAMIC_VECTORS, max_irqs);