From nobody Thu Oct 30 19:06:31 2025 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=1761235072; cv=none; d=zohomail.com; s=zohoarc; b=BmCSh6jHi90bi46uPpXFHKutwoW1VRa7f0HKAJUmQxThbzXX0XVLsdmm2Wd4sz0H3W3kuXDJaeYs+dfzAePoEjZu6LPikVjqdesPHj8xwykjzPodf/r92PGOUzfWEoVvjBeSgL+Yyw5Wa0Hh2N0a4FAKDo3JRc7fTvdaQ0qCrKg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1761235072; 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=PS7ucokoN9+hEjFZSIghu/GmWjPiHcD6tMlnYOR0lq8=; b=UUpVLHB6b/cEFwRJGscln1+b1rSNFg7E4aHwLIq5+lRPmf/0QrVJxrfP/ipZC+UX0oOsps/qxBbhk2bYl8AJ/V5Yuqfvo8LzuuRt9Xu/eTaHRXaydzQdyI4H2M92W5GCw8fVEElFjXWeRPjmTFsEgyMLH0L0ftV+XqgF550QZ/o= 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 1761235072298782.1460294112569; Thu, 23 Oct 2025 08:57:52 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.1149445.1481105 (Exim 4.92) (envelope-from ) id 1vBxh1-0000Be-6H; Thu, 23 Oct 2025 15:57:35 +0000 Received: by outflank-mailman (output) from mailman id 1149445.1481105; Thu, 23 Oct 2025 15:57:35 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1vBxh1-0000BP-3h; Thu, 23 Oct 2025 15:57:35 +0000 Received: by outflank-mailman (input) for mailman id 1149445; Thu, 23 Oct 2025 15:57:33 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1vBxcX-0003ZG-G8 for xen-devel@lists.xenproject.org; Thu, 23 Oct 2025 15:52:57 +0000 Received: from mail-wr1-x435.google.com (mail-wr1-x435.google.com [2a00:1450:4864:20::435]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 57481c2d-b028-11f0-980a-7dc792cee155; Thu, 23 Oct 2025 17:52:55 +0200 (CEST) Received: by mail-wr1-x435.google.com with SMTP id ffacd0b85a97d-4270a3464caso470211f8f.1 for ; Thu, 23 Oct 2025 08:52:55 -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 ffacd0b85a97d-429898eac60sm4517747f8f.39.2025.10.23.08.52.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 23 Oct 2025 08:52:55 -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: 57481c2d-b028-11f0-980a-7dc792cee155 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=google; t=1761234775; x=1761839575; 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=PS7ucokoN9+hEjFZSIghu/GmWjPiHcD6tMlnYOR0lq8=; b=WuLmgoDMlTfnp7crL3D29ifCTcFUeb0DBuMatdNj8e3XZWUZbAOttwxdqIuXmWvyO1 tksLcqURiXWYT2ALB83zhRpHBalHjZOOP23dPkFMRByUlvKqocEcViPJ+GgooPF/8+dW 61Ux5UDO89HJUY+l5q7u2xtUyWM8A5S7OAxNU41ZXh9TahAd0EYLYYgDfWXa317KlZCH Hpl5gpFYEPDcZeyBnsmBmfCAgLlz+BzXRXxOvuK2+Lvnp26RKALCbe9GfK3jj6KXck5X vg1WsFV1VqzG/s7DmCXI+UjJ6vc5ABbYdOD1DlX+RQswxOFGKnkeumSb6yNoM22f7qG7 gnkw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761234775; x=1761839575; 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=PS7ucokoN9+hEjFZSIghu/GmWjPiHcD6tMlnYOR0lq8=; b=HtJV+fs70Jj77cjXRpF5qs358Dprh6c7T99V2kJAUBqgyxrLUjr3+NSexzYD7u8l7V 6lHzl1xWG7ON0tTjB/jks8jJDHzReXjF2jR+zAs2jdhuYxYLNYCXc7WGFT0i0MUViGRO Mus1fZH+kg9r5aaUGbHGsQP62WTxAFwKOybA3GO5RYeOCwD5hE70z8p1+JRgQg7nAo1P +GwBIuYm2vRi7zoU0P5mfM+7eZRFfLsXtiKKXjMrU5Gx9T0rtPk3ozmiqd/OeMQP+fUQ oSDOt9w+t8Os2eODoC5iD5FndwLjTdEaR0a+eSJ/oOuxkZrRpNxGfe220ov5YFzH3JKw Vi/Q== X-Gm-Message-State: AOJu0YzI5Rs94RJ8ZUGOorHP4XHlu3QYct7VKEd4RbcQ1OU40o2isWEe SDlLURdI7zIwEEcLlVKZp77dT+jSMQl2Cg3/HzW2o9u8E2/S9nLtAUJptobwXGDRebw1evLSjw6 x7eA= X-Gm-Gg: ASbGncueGt8SujS/h4k0+sZUygIOgO8Llp20UOY5IWFhjXLUAcf+HiCd501IBdq2oT1 2pKGEkHGjzM9bI4qQwoi64o8SaOahwIAESdjuxehfL2ZQaFJLkxXxrfIWL7zA92bhWDHWn00cOX HJNdVENdZSj9S5U58uIyXgXFvylBVMxMqn2HHSwLpcexbN8vKvr+2he5ziB+vaV+nEypcmRgZ+/ YqomjGaPfbIp2EzcfEX5FuU+WdKWXJ+imECHs6ogaBRDQcKqoDeEC3nNEa94KBXlJTzk7s/XhO7 JZ4htuVKuKblnfYB2KQNcid2vc6FERYv5wMY6TWWxzb9GiQjbxZH3VzUPHGhSwqW66fN9fOZfW4 /4R1K2diAtpktvxLhoBtVksag2UC4p+yOZdC1D3Au95tpZPTdH8KrnRwsK5cSvpknqKtrpdifae neBMWB3FUSYvWv605+L1fXfh2+gihk9TZh8NZ1+Eq5ydSITH+NzfAegz6AGAb1 X-Google-Smtp-Source: AGHT+IEw5vr3sX4/p69hMs8HEEAiC3uG/ZgZS22kpenU9sT4/lr2eWLaAk4CkFjapBhq7Fp+0eTpSg== X-Received: by 2002:a5d:5f91:0:b0:428:3d14:7385 with SMTP id ffacd0b85a97d-4298a059f15mr1799694f8f.28.1761234775377; Thu, 23 Oct 2025 08:52:55 -0700 (PDT) Message-ID: Date: Thu, 23 Oct 2025 17:52:53 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH v3 8/9] x86/HPET: drop "long timeout" handling from reprogram_hpet_evt_channel() From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= References: <6a8a912c-7276-42bd-af2b-b94fc6ce4291@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: <6a8a912c-7276-42bd-af2b-b94fc6ce4291@suse.com> Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @suse.com) X-ZM-MESSAGEID: 1761235079075158500 Content-Type: text/plain; charset="utf-8" Neither caller passes STIME_MAX, so (bogusly) handling the case isn't necessary. "Bogusly" because with 32-bit counters, writing 0 means on average half the wrapping period until an interrupt would be raised, while of course in extreme cases an interrupt would be raised almost right away. Amends: aa42fc0e9cd9 ("cpuidle: remove hpet access in hpet_broadcast_exit") Signed-off-by: Jan Beulich --- v3: Drop the code instead of adjusting it. --- a/xen/arch/x86/hpet.c +++ b/xen/arch/x86/hpet.c @@ -162,13 +162,6 @@ static int reprogram_hpet_evt_channel( =20 ch->next_event =3D expire; =20 - if ( expire =3D=3D STIME_MAX ) - { - /* We assume it will take a long time for the timer to wrap. */ - hpet_write32(0, HPET_Tn_CMP(ch->idx)); - return 0; - } - delta =3D min_t(int64_t, delta, MAX_DELTA_NS); delta =3D max_t(int64_t, delta, MIN_DELTA_NS); delta =3D ns2ticks(delta, ch->shift, ch->mult);