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.gnu.org (lists.gnu.org [209.51.188.17]) (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 1C215CCF9E3 for ; Sat, 25 Oct 2025 17:31:34 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vCi6r-0004s2-Bl; Sat, 25 Oct 2025 13:31:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vCi6c-0004eR-OW for qemu-arm@nongnu.org; Sat, 25 Oct 2025 13:31:06 -0400 Received: from mail-ed1-x532.google.com ([2a00:1450:4864:20::532]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1vCi6H-0005Ga-NW for qemu-arm@nongnu.org; Sat, 25 Oct 2025 13:31:06 -0400 Received: by mail-ed1-x532.google.com with SMTP id 4fb4d7f45d1cf-63c3d7e2217so6154951a12.3 for ; Sat, 25 Oct 2025 10:30:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1761413440; x=1762018240; darn=nongnu.org; h=content-transfer-encoding:in-reply-to:content-language:from :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=gl25XAqWRPsYRwvsZLyzU4+TpVDf9M2ABrCF3/nkOsk=; b=tMFTrUy5CZpLSrFaPZNd5R2f3AVLb+y/i1aQ+LcVq6b7ImD1NN20KFxPNv0hpV1gpi 8OAFay4LCHLqWLDHSkUyS6nNC9fIDchhlIli7xCbnPnV/FnHHqNZVwhOWkJxSUf6Hj5+ Ar/fUTv132gWnmQC1kJ4HH+So9KjX3euFRLtsUEF62DY2bZZrDQlpvtX/XUd6K89yagr c5kitZiTvxbi++rtsun4jkJTZbXZA6SFg4jUfMQpPrTlVwHpwtx4CWR4H1GGC3asyRK+ 6CLysBC05E6WGuhu0wSrNtzWzpMmnZhUNRwnZvq9H02g/kxfnXwHaWRYIOX2Rwcu8rac VsEQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761413440; x=1762018240; h=content-transfer-encoding:in-reply-to:content-language:from :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=gl25XAqWRPsYRwvsZLyzU4+TpVDf9M2ABrCF3/nkOsk=; b=IX0li8Le83X//2tPw0552Zl8QW7OeV3/seHA3KSs15J6PJ4Z7TJ9cE7URJ7wfsAvH/ IqP8jor9tHhis7R5UC+yDsOf6jy87YGJB+zh8Pp4FSeW9D8nMqMBiIY9FMfW7Dbmn65o gPa7FVQSA5KIQia1Xslj2VAaD553H/MoSyKfkt7OTIbD7HtM6YBn23WNdtX/kMwNYIz0 sC1btxxY5gehAITN9mXfTf5wI2797PJ17LyKNIBHGMdC9a+cc7kFy/Asm+4KEtrFMtaK mQHJpPNYqicZuT+ECI6vH5y4eRBL3yBndxCfOI3AJLbaL/k+o+YRNRdAaG006Z8QkvGw HAcQ== X-Forwarded-Encrypted: i=1; AJvYcCVxNmoVQoJ5oOfa/GvssEaSzbJSMjV1KQVadOr2awvNAd9RWH3CQONqm6ji8ZYLcI6sHmUVXMX8bw==@nongnu.org X-Gm-Message-State: AOJu0YwRLV8eAWZ0hDe2mv5Yumsmd31NDiLNj7HwiNeqTNJwj68MH+g7 ddHes/EXheUoT21TeZycQ+j6iK/6YVAk+D2U2Lb7SRoDY6deLfsdClGsKxO6eZWe8jQ= X-Gm-Gg: ASbGnctwIhn7QVM0EN0Lxn/Wjll+mwgeDq6y/fUXpBvVzRMb6o8pE0FAVjMP98/pHA/ jm2wVq/EJ8nHVypyFi6PbtJqVXZhdJt3jTiPgsLogDmOmWbfxHBrEveVKUCpW/fDkyp0Z4H5nlz qUsJ0IG/5wAeRNm1Z7YRIThhzBcxOwm1fuDx4dlnv4onc6+lDFEvIu8rxqhY6651vjwIJO7OLkz u0EyXIC1Lbv1BLC3E9BPurwiFj6eDTiq92wO5a0ritpQTD2GClSkiuuhBHQALQgYYG1kolmGVln fnvVwFkNjcc1vS9TrPphnzwf0QzwcJyT/CvW8dLNFiYBnz2X9eHQC7O85msC7gPgTN3iCneZl58 EZ1p35lEc0k3w1HTQdPuziZvl8RINdQzR71Dm7zFSXCNgJQXfYEcE/ntpeOyvq5ryxIMuvb1iSw 8PoZ/FBTj91GWXw9/YGR1RzRmk/E/wsq+6VcYMpuvDSNIwNLNwXKcF+jcNls8xO0RRA+5IbQQz5 w== X-Google-Smtp-Source: AGHT+IGdRVBM/lcC5c8NarUVjuL/5FWNvD3hKEYQNXNG4bhVRpulkQqmMGG9q5e75x7oVXrJKPb5og== X-Received: by 2002:a05:6402:3506:b0:63e:19ec:c8e4 with SMTP id 4fb4d7f45d1cf-63e600e9e15mr5591341a12.28.1761413440389; Sat, 25 Oct 2025 10:30:40 -0700 (PDT) Received: from [10.240.88.227] (ip-037-024-071-028.um08.pools.vodafone-ip.de. [37.24.71.28]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-63e7ef6c0e9sm2099548a12.1.2025.10.25.10.30.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 25 Oct 2025 10:30:40 -0700 (PDT) Message-ID: Date: Sat, 25 Oct 2025 19:30:36 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 32/58] target/arm/hvf/hvf: Document $pc adjustment in HVF & SMC To: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= , qemu-devel@nongnu.org Cc: Mohamed Mediouni , Phil Dennis-Jordan , Cameron Esfahani , qemu-arm@nongnu.org, Peter Maydell , Peter Collingbourne , Mads Ynddal , Roman Bolshakov , Alexander Graf , Stefan Hajnoczi , Paolo Bonzini References: <20251023114638.5667-1-philmd@linaro.org> <20251023115311.6944-3-philmd@linaro.org> From: Richard Henderson Content-Language: en-US In-Reply-To: <20251023115311.6944-3-philmd@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::532; envelope-from=richard.henderson@linaro.org; helo=mail-ed1-x532.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Sender: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org On 10/23/25 13:52, Philippe Mathieu-Daudé wrote: > Signed-off-by: Philippe Mathieu-Daudé > --- > target/arm/hvf/hvf.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c > index b5fdd86837e..a045f83c9e2 100644 > --- a/target/arm/hvf/hvf.c > +++ b/target/arm/hvf/hvf.c > @@ -1947,6 +1947,7 @@ static int hvf_handle_exception(CPUState *cpu, hv_vcpu_exit_exception_t *excp) > case EC_AA64_HVC: > cpu_synchronize_state(cpu); > if (arm_is_psci_call(arm_cpu, EXCP_HVC)) { > + /* Do NOT advance $pc for HVC */ > if (!hvf_handle_psci_call(cpu)) { > trace_hvf_unknown_hvc(env->pc, env->xregs[0]); > /* SMCCC 1.3 section 5.2 says every unknown SMCCC call returns -1 */ > @@ -1960,6 +1961,7 @@ static int hvf_handle_exception(CPUState *cpu, hv_vcpu_exit_exception_t *excp) > case EC_AA64_SMC: > cpu_synchronize_state(cpu); > if (arm_is_psci_call(arm_cpu, EXCP_SMC)) { > + /* Secure Monitor Call exception, we need to advance $pc */ > advance_pc = true; > > if (!hvf_handle_psci_call(cpu)) { Reviewed-by: Richard Henderson r~