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[98.147.7.212]) by smtp.gmail.com with ESMTPSA id ga15-20020a17090b038f00b0029c3bac0aa8sm8658432pjb.4.2024.04.08.10.49.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Apr 2024 10:49:44 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: Sven Schnelle , Helge Deller Subject: [PULL 09/35] target/hppa: Fix IIAOQ, IIASQ for pa2.0 Date: Mon, 8 Apr 2024 07:49:03 -1000 Message-Id: <20240408174929.862917-10-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240408174929.862917-1-richard.henderson@linaro.org> References: <20240408174929.862917-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::102c; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102c.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=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@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-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org The contents of IIAOQ depend on PSW_W. Follow the text in "Interruption Instruction Address Queues", pages 2-13 through 2-15. Tested-by: Sven Schnelle Tested-by: Helge Deller Reported-by: Sven Schnelle Fixes: b10700d826c ("target/hppa: Update IIAOQ, IIASQ for pa2.0") Signed-off-by: Richard Henderson --- target/hppa/int_helper.c | 20 +++++++++++--------- target/hppa/sys_helper.c | 18 +++++++++--------- 2 files changed, 20 insertions(+), 18 deletions(-) diff --git a/target/hppa/int_helper.c b/target/hppa/int_helper.c index 90437a92cd..a667ee380d 100644 --- a/target/hppa/int_helper.c +++ b/target/hppa/int_helper.c @@ -107,14 +107,10 @@ void hppa_cpu_do_interrupt(CPUState *cs) /* step 3 */ /* - * For pa1.x, IIASQ is simply a copy of IASQ. - * For pa2.0, IIASQ is the top bits of the virtual address, - * or zero if translation is disabled. + * IIASQ is the top bits of the virtual address, or zero if translation + * is disabled -- with PSW_W == 0, this will reduce to the space. */ - if (!hppa_is_pa20(env)) { - env->cr[CR_IIASQ] = env->iasq_f >> 32; - env->cr_back[0] = env->iasq_b >> 32; - } else if (old_psw & PSW_C) { + if (old_psw & PSW_C) { env->cr[CR_IIASQ] = hppa_form_gva_psw(old_psw, env->iasq_f, env->iaoq_f) >> 32; env->cr_back[0] = @@ -123,8 +119,14 @@ void hppa_cpu_do_interrupt(CPUState *cs) env->cr[CR_IIASQ] = 0; env->cr_back[0] = 0; } - env->cr[CR_IIAOQ] = env->iaoq_f; - env->cr_back[1] = env->iaoq_b; + /* IIAOQ is the full offset for wide mode, or 32 bits for narrow mode. */ + if (old_psw & PSW_W) { + env->cr[CR_IIAOQ] = env->iaoq_f; + env->cr_back[1] = env->iaoq_b; + } else { + env->cr[CR_IIAOQ] = (uint32_t)env->iaoq_f; + env->cr_back[1] = (uint32_t)env->iaoq_b; + } if (old_psw & PSW_Q) { /* step 5 */ diff --git a/target/hppa/sys_helper.c b/target/hppa/sys_helper.c index 208e51c086..22d6c89964 100644 --- a/target/hppa/sys_helper.c +++ b/target/hppa/sys_helper.c @@ -78,21 +78,21 @@ target_ulong HELPER(swap_system_mask)(CPUHPPAState *env, target_ulong nsm) void HELPER(rfi)(CPUHPPAState *env) { - env->iasq_f = (uint64_t)env->cr[CR_IIASQ] << 32; - env->iasq_b = (uint64_t)env->cr_back[0] << 32; - env->iaoq_f = env->cr[CR_IIAOQ]; - env->iaoq_b = env->cr_back[1]; + uint64_t mask; + + cpu_hppa_put_psw(env, env->cr[CR_IPSW]); /* * For pa2.0, IIASQ is the top bits of the virtual address. * To recreate the space identifier, remove the offset bits. + * For pa1.x, the mask reduces to no change to space. */ - if (hppa_is_pa20(env)) { - env->iasq_f &= ~env->iaoq_f; - env->iasq_b &= ~env->iaoq_b; - } + mask = gva_offset_mask(env->psw); - cpu_hppa_put_psw(env, env->cr[CR_IPSW]); + env->iaoq_f = env->cr[CR_IIAOQ]; + env->iaoq_b = env->cr_back[1]; + env->iasq_f = (env->cr[CR_IIASQ] << 32) & ~(env->iaoq_f & mask); + env->iasq_b = (env->cr_back[0] << 32) & ~(env->iaoq_b & mask); } static void getshadowregs(CPUHPPAState *env) -- 2.34.1