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Date: Tue, 23 May 2023 04:44:53 -0700 Message-Id: <20230523114454.717708-2-tommy.wu@sifive.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20230523114454.717708-1-tommy.wu@sifive.com> References: <20230523114454.717708-1-tommy.wu@sifive.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::329; envelope-from=tommy.wu@sifive.com; helo=mail-ot1-x329.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, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @sifive.com) X-ZM-MESSAGEID: 1684842353988100003 Content-Type: text/plain; charset="utf-8" When we change the cpu extension state after the cpu is realized, we cannot print the value of some CSRs in the remote gdb debugger. The root cause is that the dynamic CSR xml is generated when the cpu is realized. This patch add a function to refresh the dynamic CSR xml after the cpu is realized. Signed-off-by: Tommy Wu Reviewed-by: Frank Chang Reviewed-by: Weiwei Li --- target/riscv/cpu.h | 2 ++ target/riscv/gdbstub.c | 12 ++++++++++++ 2 files changed, 14 insertions(+) diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index de7e43126a..dc8e592275 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -494,6 +494,7 @@ struct ArchCPU { CPUNegativeOffsetState neg; CPURISCVState env; =20 + int dyn_csr_base_reg; char *dyn_csr_xml; char *dyn_vreg_xml; =20 @@ -781,6 +782,7 @@ void riscv_get_csr_ops(int csrno, riscv_csr_operations = *ops); void riscv_set_csr_ops(int csrno, riscv_csr_operations *ops); =20 void riscv_cpu_register_gdb_regs_for_features(CPUState *cs); +void riscv_refresh_dynamic_csr_xml(CPUState *cs); =20 uint8_t satp_mode_max_from_map(uint32_t map); const char *satp_mode_str(uint8_t satp_mode, bool is_32_bit); diff --git a/target/riscv/gdbstub.c b/target/riscv/gdbstub.c index 524bede865..9e97ee2c35 100644 --- a/target/riscv/gdbstub.c +++ b/target/riscv/gdbstub.c @@ -230,6 +230,8 @@ static int riscv_gen_dynamic_csr_xml(CPUState *cs, int = base_reg) bitsize =3D 64; } =20 + cpu->dyn_csr_base_reg =3D base_reg; + g_string_printf(s, ""); g_string_append_printf(s, ""); g_string_append_printf(s, ""= ); @@ -349,3 +351,13 @@ void riscv_cpu_register_gdb_regs_for_features(CPUState= *cs) "riscv-csr.xml", 0); } } + +void riscv_refresh_dynamic_csr_xml(CPUState *cs) +{ + RISCVCPU *cpu =3D RISCV_CPU(cs); + if (!cpu->dyn_csr_xml) { + g_assert_not_reached(); + } + g_free(cpu->dyn_csr_xml); + riscv_gen_dynamic_csr_xml(cs, cpu->dyn_csr_base_reg); +} --=20 2.38.1 From nobody Sat May 18 09:23:05 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=sifive.com ARC-Seal: i=1; a=rsa-sha256; t=1684842353; cv=none; d=zohomail.com; s=zohoarc; b=Ib3cvaFHUlwDqSaIVdPoIiuu5xuGYTFKiDn+guwYLYmIR4IzpD3kfWOcZlMXLB8IqSnYUzPb6/Izcleq9FqP+MexVTYbku2HIDLL7pE+duJI1DfUA64DsU4GZ7rsCbvVPoXvI21lwZGEeYtP5M6swOniEGVs3Np71E8qLKdKRAg= ARC-Message-Signature: i=1; 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Tue, 23 May 2023 04:45:02 -0700 (PDT) From: Tommy Wu To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Cc: frank.chang@sifive.com, alistair.francis@wdc.com, apatel@ventanamicro.com, palmer@rivosinc.com, dbarboza@ventanamicro.com, bin.meng@windriver.com, liweiwei@iscas.ac.cn, zhiwei_liu@linux.alibaba.com, Tommy Wu Subject: [PATCH 2/2] hw/intc: riscv_imsic: Refresh the CSRs xml after updating the state of the cpu. Date: Tue, 23 May 2023 04:44:54 -0700 Message-Id: <20230523114454.717708-3-tommy.wu@sifive.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20230523114454.717708-1-tommy.wu@sifive.com> References: <20230523114454.717708-1-tommy.wu@sifive.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::230; envelope-from=tommy.wu@sifive.com; helo=mail-oi1-x230.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, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @sifive.com) X-ZM-MESSAGEID: 1684842355825100007 Content-Type: text/plain; charset="utf-8" Originally, when we set the ext_smaia to true, we still cannot print the AIA CSRs in the remote gdb debugger, because the dynamic CSR xml is generated when the cpu is realized. This patch refreshes the dynamic CSR xml after we update the ext_smaia, so that we can print the AIA CSRs in the remote gdb debugger. Signed-off-by: Tommy Wu Reviewed-by: Frank Chang --- hw/intc/riscv_imsic.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/intc/riscv_imsic.c b/hw/intc/riscv_imsic.c index fea3385b51..97a51d535b 100644 --- a/hw/intc/riscv_imsic.c +++ b/hw/intc/riscv_imsic.c @@ -350,6 +350,10 @@ static void riscv_imsic_realize(DeviceState *dev, Erro= r **errp) } else { rcpu->cfg.ext_smaia =3D true; } + + /* Refresh the dynamic csr xml for the gdbstub. */ + riscv_refresh_dynamic_csr_xml(cpu); + riscv_cpu_set_aia_ireg_rmw_fn(env, (imsic->mmode) ? PRV_M : PRV_S, riscv_imsic_rmw, imsic); } --=20 2.38.1