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[97.113.7.119]) by smtp.gmail.com with ESMTPSA id q22sm873695pfg.170.2019.12.02.18.30.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Dec 2019 18:30:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=s9VJVdTUiMlwkcjgw0/3sV/2Ka0DCPLGSdMwx4oTNII=; b=V0p4GsWs+jcwUzHv4bb8Yz8DP1b1lGHslfoJocTsXr/CU50SNzcn8TLxMED8zLq4f6 NfHYTW2woNYsEBhvG3M8+ORu6M4WHsEANzTO+na5PgxHVxK+J8Ooi9V2FUkar/0bXpGu ePLgeZFcNVmYlzHzS6D5jmB2dpcL2tIDu/CfdWPcVb6t3VgPHxCtAqArpAI0AnqRaVsn hFSvcJDIT4OFCvxi8MccdMN4ggBXA1pGlC9gadXU1AAJi2YXQpWmKKKQxba1qXSNccjq wx+mwSp/SJ11kgkdHYf18amU6pRQHrhMidLmFelF1PZqMfinxDDObaN32daBrHO+KoPm sY8w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=s9VJVdTUiMlwkcjgw0/3sV/2Ka0DCPLGSdMwx4oTNII=; b=o3YZCCXS6CwEOqlxQlR3pKqPAXgpHR3teKZV1YTirJUBm1vqpgV3a/6aOlu6n9Yp5A Vjhi/DUP0ucFBFcOElE1ODKc/4zAR2c7QB55J0ex4NZYBLOrly0wYawtNKh1TYO7Gn2R PMOa/1H8aJpTlgCf5GVUR3AvdjsH/RIrCZ9K6zKjEQm7ytTIfYQn2qCwzaCLMa3HKD5k sqUzoSoruX69cPQGQihGsD+5zhWDqHjkbeff5mgOO13Rj4MXWTPW0lbhO4Lq1yrF29C/ iKQGkPxw/bf5O5yLY1TUopL4K6ZSncQzjc+aEhiP8+xdckTMaU0PBm+OMuuQj20kgzaz EMrA== X-Gm-Message-State: APjAAAVXshOVe9j/zHNH87fUXFnsE7kIR7BS7+4OZz61X9BUi2DlT07F w4csgUUdk5nBwQpqhdr2TywNW8uGoKI= X-Google-Smtp-Source: APXvYqwxAzSk+ImtzKahchUNa86+ODx4shdMYeOyuP00FOkVu4R7Q/jJIjV0YNof1d8ZzwpGEf3Rnw== X-Received: by 2002:a17:902:142:: with SMTP id 60mr2767564plb.38.1575340229666; Mon, 02 Dec 2019 18:30:29 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v4 40/40] target/arm: Raise only one interrupt in arm_cpu_exec_interrupt Date: Mon, 2 Dec 2019 18:29:37 -0800 Message-Id: <20191203022937.1474-41-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191203022937.1474-1-richard.henderson@linaro.org> References: <20191203022937.1474-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::1041 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" The fall through organization of this function meant that we would raise an interrupt, then might overwrite that with another. Since interrupt prioritization is IMPLEMENTATION DEFINED, we can recognize these in any order we choose. Unify the code to raise the interrupt in a block at the end. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- target/arm/cpu.c | 30 ++++++++++++------------------ 1 file changed, 12 insertions(+), 18 deletions(-) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index a366448c6d..f3360dbb98 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -535,17 +535,15 @@ bool arm_cpu_exec_interrupt(CPUState *cs, int interru= pt_request) uint64_t hcr_el2 =3D arm_hcr_el2_eff(env); uint32_t target_el; uint32_t excp_idx; - bool ret =3D false; + + /* The prioritization of interrupts is IMPLEMENTATION DEFINED. */ =20 if (interrupt_request & CPU_INTERRUPT_FIQ) { excp_idx =3D EXCP_FIQ; target_el =3D arm_phys_excp_target_el(cs, excp_idx, cur_el, secure= ); if (arm_excp_unmasked(cs, excp_idx, target_el, cur_el, secure, hcr_el2)) { - cs->exception_index =3D excp_idx; - env->exception.target_el =3D target_el; - cc->do_interrupt(cs); - ret =3D true; + goto found; } } if (interrupt_request & CPU_INTERRUPT_HARD) { @@ -553,10 +551,7 @@ bool arm_cpu_exec_interrupt(CPUState *cs, int interrup= t_request) target_el =3D arm_phys_excp_target_el(cs, excp_idx, cur_el, secure= ); if (arm_excp_unmasked(cs, excp_idx, target_el, cur_el, secure, hcr_el2)) { - cs->exception_index =3D excp_idx; - env->exception.target_el =3D target_el; - cc->do_interrupt(cs); - ret =3D true; + goto found; } } if (interrupt_request & CPU_INTERRUPT_VIRQ) { @@ -564,10 +559,7 @@ bool arm_cpu_exec_interrupt(CPUState *cs, int interrup= t_request) target_el =3D 1; if (arm_excp_unmasked(cs, excp_idx, target_el, cur_el, secure, hcr_el2)) { - cs->exception_index =3D excp_idx; - env->exception.target_el =3D target_el; - cc->do_interrupt(cs); - ret =3D true; + goto found; } } if (interrupt_request & CPU_INTERRUPT_VFIQ) { @@ -575,14 +567,16 @@ bool arm_cpu_exec_interrupt(CPUState *cs, int interru= pt_request) target_el =3D 1; if (arm_excp_unmasked(cs, excp_idx, target_el, cur_el, secure, hcr_el2)) { - cs->exception_index =3D excp_idx; - env->exception.target_el =3D target_el; - cc->do_interrupt(cs); - ret =3D true; + goto found; } } + return false; =20 - return ret; + found: + cs->exception_index =3D excp_idx; + env->exception.target_el =3D target_el; + cc->do_interrupt(cs); + return true; } =20 #if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) --=20 2.17.1