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[97.113.188.82]) by smtp.gmail.com with ESMTPSA id h126sm27314756pfc.135.2019.03.08.10.59.33 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 08 Mar 2019 10:59:34 -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; bh=JBcKzip65zMWiQURMI3nn1U61H1/5KiDKQ/le/p+P/o=; b=dy4hvb8cT7VAOYGkvuFT4GCzXJ5WczfBBHH/L1Y3E5HjUpttcVASz+2jo/itYG1zxO mLPgycFNWYBQ5ejwBm7SZceCGEsKmfxKNHWTbG9iPJ3Fzsr7XWTb419AfG8Hmfq71nHX QWrot4v1fIetVCdYVTEvquxSZ5Xdm3M88KRiQHMsnuhP9VB/vmCUUsyYoDaX7jtNZEmE lom5kF+5TDQQAC6RS+vHy57oNU39Q+qxsnm4tm8kMI3DAojJ1i9fh6LQGbMRjFYf8QHv aEKEH+3Z7OZyjjyTB/oEY8L9xHOB9dcXsEh5A28Gw8eKasf3euuAndIXHauIpUV6l056 Hl5w== 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; bh=JBcKzip65zMWiQURMI3nn1U61H1/5KiDKQ/le/p+P/o=; b=jp8OX+iWcZlwht778AUq1P6DalnJi1nxUNuNFm4qABwNQzF2YY4jzDRv4FM0BwqYAj a9dAqQ7xqWhWFfqMVKSsy2Cz4L70i8g9hjwm9Kmm9m3g8Vg1HczEy8wwxUiwx+YzkWK9 wHoId0F0xKsC9WnJuLXP0Cd8n9Dr53OiIAwG13F1LRBK/v8AbecWbxw23xLCfx26x4X9 wLVwdkORsFfDKvm8zxFgO71LWMFd0lNXjdjEHNUyzDJZmYPy6xvKY7xhsmAl67l7PvYA lrEMlQwiTV3lmb1anNAvpzHJcdacJ0gSLs3bvVId16BY6XiIyK1SVPgVDnYW56iAnvC/ HOgg== X-Gm-Message-State: APjAAAVlXwdZuYO1N9WutNqzaFW7T59+mPOwVLAS0vTqbh+tYJbQ6gl6 sKYONPLUyD+Xd6Jrz3Xw3e7msfpLqrI= X-Google-Smtp-Source: APXvYqxwY+MyShNPqCPRqwnwTdvkGE+RvR2/PlNt2tShtlh7/HK7cDKhGaIKS5grForQwjWwqhOJBA== X-Received: by 2002:a17:902:7202:: with SMTP id ba2mr19906043plb.147.1552071574839; Fri, 08 Mar 2019 10:59:34 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Date: Fri, 8 Mar 2019 10:59:32 -0800 Message-Id: <20190308185932.4954-1-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.2 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::441 Subject: [Qemu-devel] [PATCH] target/hppa: Check for page crossings in use_goto_tb X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: svens@stackframe.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" We got away with eliding this check when target/hppa was user-only, but missed adding this check when adding system support. Fixes an early crash in the HP-UX 11 installer. Reported-by: Sven Schnelle Signed-off-by: Richard Henderson --- target/hppa/translate.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/target/hppa/translate.c b/target/hppa/translate.c index dc5636fe94..6c815e05c2 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -816,12 +816,10 @@ static bool gen_illegal(DisasContext *ctx) =20 static bool use_goto_tb(DisasContext *ctx, target_ureg dest) { - /* Suppress goto_tb in the case of single-steping and IO. */ - if ((tb_cflags(ctx->base.tb) & CF_LAST_IO) - || ctx->base.singlestep_enabled) { - return false; - } - return true; + /* Suppress goto_tb for page crossing, IO, or single-steping. */ + return !(((ctx->base.pc_first ^ dest) & TARGET_PAGE_MASK) + || (tb_cflags(ctx->base.tb) & CF_LAST_IO) + || ctx->base.singlestep_enabled); } =20 /* If the next insn is to be nullified, and it's on the same page, --=20 2.17.2