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[97.113.188.82]) by smtp.gmail.com with ESMTPSA id q62sm12605644pga.32.2019.03.12.09.19.07 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 12 Mar 2019 09:19:08 -0700 (PDT) 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=JBcKzip65zMWiQURMI3nn1U61H1/5KiDKQ/le/p+P/o=; b=Hz7BuSj1ETnnWLFkFuE8Q6Cc5ZCkoYv2pEPaLT0TSeu3OxQABoRMZBdg289zxEph+N bXN3UOiFBTNeBaMVJ969C6gDl94vL0wgUqFCfLPrOWYU3JeDCsfzJPHI4noixGcTEsSB yy9ot4Ckc/QUGRUfZDPn/fI/hvcfypO2u02h89nbKy3xt/61LXU/GmiYXOix+OL9rM50 BkS00zfB9CMivQZRb6AA/1DzyJG6Gge6xAdfEwoXWZMahBPsFvCj35TiOKTgU2y/xhNM 5hhsIdn9zNXTKtnzm3PxEPTe8rsuzpquTapTyyrQGo6yhQNgfmlosJe1JK+zBoxJErOE Ulhg== 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=JBcKzip65zMWiQURMI3nn1U61H1/5KiDKQ/le/p+P/o=; b=BX2P1JKdnLzdHKXY1wGhNYVHehtC7/GQShNpZg76f6UvR38Fqe/8oDgJc9f51EEwVC xydBGKGRv2QE5gz9IPyoJIV4Cw6VKx/6eOC+7P7JR51e0lKlIMUirkLM/oFUfiChq1aK WV3NKPbA/lVo/10lJu/vRuzLaNKCcIa58kr/d1D3M+rcF2CIODkn2hB4NLRZgGm21DQZ dWVYWiZtkYPywbaXPJwZGuYhpTSEJrFDZB9tgB85A1xVAUBWbLk/FLJ4vL6386WLpkZT tmbA6PcNBYmUyI0v9ft6PzLIxtMwP+UFIasYATP5ldwAxCQIuIogeK1PSirIQavby0rh 33Rg== X-Gm-Message-State: APjAAAXy8QeOlghDFjeZAi9O8vpa3lw4bHmpyebgcaL+muQTzq7Q24Ed IlD4tMxB2QiLuQ9WMCPhSqSAKJPVpSo= X-Google-Smtp-Source: APXvYqx6eirFUDap6fO1HUJH0jQYn4PkqQhE/vP1nnVTzRURMUG5ZNAd5cx17OXWbZXh1FPyMQlraA== X-Received: by 2002:a63:7843:: with SMTP id t64mr35859422pgc.178.1552407549191; Tue, 12 Mar 2019 09:19:09 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Tue, 12 Mar 2019 09:18:54 -0700 Message-Id: <20190312161904.31130-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20190312161904.31130-1-richard.henderson@linaro.org> References: <20190312161904.31130-1-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::531 Subject: [Qemu-devel] [PULL 01/11] 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: peter.maydell@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" 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