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[174.21.6.47]) by smtp.gmail.com with ESMTPSA id z125sm182023pfz.27.2018.01.21.19.42.22 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 21 Jan 2018 19:42:23 -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=jWlXGhyGzuQklKuZM0jR3HHQ8HHbSqFzQDbbpF04MmY=; b=ctyEwk304ZAOfua5h+GJPQUjVrVBPwGW93erXU4U2jeVi3GRnvQMTQLb+PkCJqLAYg uZW9sAdw8HD+khguMc2AQdYKyiC5UZ84uVKGr2Cu+odmLr077ZCUC+WME+b1zTM+7KN0 SzhpY3Idg+QmcdCqn98reixryVm4rA6TMS/3g= 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=jWlXGhyGzuQklKuZM0jR3HHQ8HHbSqFzQDbbpF04MmY=; b=DO8L+SPRsTFYGMB2D7TGBzgMUMHTJuQb57AsyDt6ISV1CoK66sQf+Dfqqt/X7o3yiQ qo8spX5HcZjQoUuJd+J/XL1gIScM/9tG0V3c64ETW5aaRfbbBLxtZbwSQjrsQ71vpxvj 5W7/KJKOX6SCXkxeeRv5j8C15raqHE6CehnEysPocu7nSfhZtqPrrXm+pwf3wm4IHdqj df83oKI0eGyDWSasp8D3/sEWPchR2jB1G03CwS7yycZd/RKnxd5qoemtN9uWAluWEdy1 oDcoGIikQsAg+et5Ti0FQOPHaxcgaMJEBwWUnte+2+UrJwaGBZl+O+Znixr1J+yZnvQn unYQ== X-Gm-Message-State: AKwxytfFRlAwv++bTsT8sSE/GGzHtYPaXfZXRcTvf0i13hMLwnV+CgMk ycI/tWCVfq3XnBiXM828Ue+vMmGenqY= X-Google-Smtp-Source: AH8x225NzotRG6yawDorzGgH35i59bYcixcT+69FCVKcVu89eiVR/sU8beEULmlS0gG0i6Cd9PVmkw== X-Received: by 10.99.113.75 with SMTP id b11mr6271697pgn.271.1516592544093; Sun, 21 Jan 2018 19:42:24 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Date: Sun, 21 Jan 2018 19:41:37 -0800 Message-Id: <20180122034217.19593-4-richard.henderson@linaro.org> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180122034217.19593-1-richard.henderson@linaro.org> References: <20180122034217.19593-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:400e:c05::241 Subject: [Qemu-devel] [PULL 03/43] target/hppa: Disable gateway page emulation for system mode 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) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson --- target/hppa/translate.c | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) diff --git a/target/hppa/translate.c b/target/hppa/translate.c index 31d9a2a31b..8e357cc60c 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -1543,6 +1543,7 @@ static DisasJumpType do_ibranch(DisasContext *ctx, TC= Gv dest, return DISAS_NEXT; } =20 +#ifdef CONFIG_USER_ONLY /* On Linux, page zero is normally marked execute only + gateway. Therefore normal read or write is supposed to fail, but specific offsets have kernel code mapped to raise permissions to implement @@ -1600,6 +1601,7 @@ static DisasJumpType do_page_zero(DisasContext *ctx) return DISAS_NORETURN; } } +#endif =20 static DisasJumpType trans_nop(DisasContext *ctx, uint32_t insn, const DisasInsn *di) @@ -3787,10 +3789,13 @@ static void hppa_tr_translate_insn(DisasContextBase= *dcbase, CPUState *cs) int i, n; =20 /* Execute one insn. */ +#ifdef CONFIG_USER_ONLY if (ctx->iaoq_f < TARGET_PAGE_SIZE) { ret =3D do_page_zero(ctx); assert(ret !=3D DISAS_NEXT); - } else { + } else +#endif + { /* Always fetch the insn, even if nullified, so that we check the page permissions for execute. */ uint32_t insn =3D cpu_ldl_code(env, ctx->iaoq_f); @@ -3885,25 +3890,27 @@ static void hppa_tr_tb_stop(DisasContextBase *dcbas= e, CPUState *cs) static void hppa_tr_disas_log(const DisasContextBase *dcbase, CPUState *cs) { TranslationBlock *tb =3D dcbase->tb; + target_ulong pc =3D tb->pc; =20 - switch (tb->pc) { +#ifdef CONFIG_USER_ONLY + switch (pc) { case 0x00: qemu_log("IN:\n0x00000000: (null)\n"); - break; + return; case 0xb0: qemu_log("IN:\n0x000000b0: light-weight-syscall\n"); - break; + return; case 0xe0: qemu_log("IN:\n0x000000e0: set-thread-pointer-syscall\n"); - break; + return; case 0x100: qemu_log("IN:\n0x00000100: syscall\n"); - break; - default: - qemu_log("IN: %s\n", lookup_symbol(tb->pc)); - log_target_disas(cs, tb->pc, tb->size); - break; + return; } +#endif + + qemu_log("IN: %s\n", lookup_symbol(pc)); + log_target_disas(cs, pc, tb->size); } =20 static const TranslatorOps hppa_tr_ops =3D { --=20 2.14.3