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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240627-ipi-fixes-v1-1-9b061dc28a3a@flygoat.com> References: <20240627-ipi-fixes-v1-0-9b061dc28a3a@flygoat.com> In-Reply-To: <20240627-ipi-fixes-v1-0-9b061dc28a3a@flygoat.com> To: qemu-devel@nongnu.org Cc: Huacai Chen , Song Gao , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Jiaxun Yang , maobibo X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3536; i=jiaxun.yang@flygoat.com; h=from:subject:message-id; bh=6Ifi0LX/Hzl5xVmPFwnzHajrPekTKq8WhVhlqGtVBH4=; b=owGbwMvMwCXmXMhTe71c8zDjabUkhrSaZ597K5VL3/E8v21uIBTjWz53dlGlqcR0Xa4zjDrV+ mJNt3d2lLIwiHExyIopsoQIKPVtaLy44PqDrD8wc1iZQIYwcHEKwET+GDD8lVjSefeVYvbNfe0X nKK139wsm7fQRsp+i0jmmxMNPk838zP8L4m03hW1g5v90CNOS5l5YZe/mn64elN2+Vm3Kd6br3d +YQMA X-Developer-Key: i=jiaxun.yang@flygoat.com; a=openpgp; fpr=980379BEFEBFBF477EA04EF9C111949073FC0F67 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=64.147.123.157; envelope-from=jiaxun.yang@flygoat.com; helo=wfhigh6-smtp.messagingengine.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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_LOW=-0.7, SPF_HELO_PASS=-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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @flygoat.com) X-ZM-MESSAGEID: 1719461715845100005 Commit 49eba52a52fe ("hw/intc/loongson_ipi: Provide per core MMIO address spaces") implemented per core MMIO spaces for IPI registers. However on LoongArch system emulation with high core count it may exhaust QDEV_MAX_MMIO and trigger assertion. Given that MMIO region is unused for LoongArch system emulation (we do have it on hardware but kernel is in favor of IOCSR), gate MMIO regions creation with "has-mmio" property and only set if for loongson3-virt machine to avoid such limitation on LoongArch. Reported-by: maobibo Signed-off-by: Jiaxun Yang Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/intc/loongson_ipi.c | 23 ++++++++++++++--------- hw/mips/loongson3_virt.c | 1 + include/hw/intc/loongson_ipi.h | 1 + 3 files changed, 16 insertions(+), 9 deletions(-) diff --git a/hw/intc/loongson_ipi.c b/hw/intc/loongson_ipi.c index e6a7142480c6..6e92a503499a 100644 --- a/hw/intc/loongson_ipi.c +++ b/hw/intc/loongson_ipi.c @@ -305,15 +305,19 @@ static void loongson_ipi_realize(DeviceState *dev, Er= ror **errp) return; } =20 - for (i =3D 0; i < s->num_cpu; i++) { - s->cpu[i].ipi =3D s; - s->cpu[i].ipi_mmio_mem =3D g_new0(MemoryRegion, 1); - g_autofree char *name =3D g_strdup_printf("loongson_ipi_cpu%d_mmio= ", i); - memory_region_init_io(s->cpu[i].ipi_mmio_mem, OBJECT(dev), - &loongson_ipi_core_ops, &s->cpu[i], name, 0x= 48); - sysbus_init_mmio(sbd, s->cpu[i].ipi_mmio_mem); - - qdev_init_gpio_out(dev, &s->cpu[i].irq, 1); + if (s->has_mmio) { + for (i =3D 0; i < s->num_cpu; i++) { + s->cpu[i].ipi =3D s; + s->cpu[i].ipi_mmio_mem =3D g_new0(MemoryRegion, 1); + g_autofree char *name =3D + g_strdup_printf("loongson_ipi_cpu%d_mmio", i); + memory_region_init_io(s->cpu[i].ipi_mmio_mem, OBJECT(dev), + &loongson_ipi_core_ops, &s->cpu[i], + name, 0x48); + sysbus_init_mmio(sbd, s->cpu[i].ipi_mmio_mem); + + qdev_init_gpio_out(dev, &s->cpu[i].irq, 1); + } } } =20 @@ -344,6 +348,7 @@ static const VMStateDescription vmstate_loongson_ipi = =3D { =20 static Property ipi_properties[] =3D { DEFINE_PROP_UINT32("num-cpu", LoongsonIPI, num_cpu, 1), + DEFINE_PROP_BOOL("has-mmio", LoongsonIPI, has_mmio, false), DEFINE_PROP_END_OF_LIST(), }; =20 diff --git a/hw/mips/loongson3_virt.c b/hw/mips/loongson3_virt.c index 4ad36f0c5b64..a27b30ab318c 100644 --- a/hw/mips/loongson3_virt.c +++ b/hw/mips/loongson3_virt.c @@ -537,6 +537,7 @@ static void mips_loongson3_virt_init(MachineState *mach= ine) if (!kvm_enabled()) { ipi =3D qdev_new(TYPE_LOONGSON_IPI); qdev_prop_set_uint32(ipi, "num-cpu", machine->smp.cpus); + qdev_prop_set_bit(ipi, "has-mmio", true); sysbus_realize_and_unref(SYS_BUS_DEVICE(ipi), &error_fatal); memory_region_add_subregion(iocsr, SMP_IPI_MAILBOX, sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi)= , 0)); diff --git a/include/hw/intc/loongson_ipi.h b/include/hw/intc/loongson_ipi.h index 3f795edbf3cd..0e35674e7aaf 100644 --- a/include/hw/intc/loongson_ipi.h +++ b/include/hw/intc/loongson_ipi.h @@ -50,6 +50,7 @@ struct LoongsonIPI { MemoryRegion ipi_iocsr_mem; MemoryRegion ipi64_iocsr_mem; uint32_t num_cpu; + bool has_mmio; IPICore *cpu; }; =20 --=20 2.43.0 From nobody Sun Nov 24 23:53:58 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=none dis=none) header.from=flygoat.com ARC-Seal: i=1; a=rsa-sha256; t=1719461713; cv=none; d=zohomail.com; s=zohoarc; b=YEWzvtAkhC8kO4N9pMLAm2618lQqqKuT4FcgIpJf9qRfwFRo7kpJGdgsfBf3zUNLcA7V/ZmKcSLRzx4bEa6g2H0WTSAVT62DFmv72srpm1CcHY1Rz8BZtZX1L6WXODkb++G3sAzrXJilJhsC8XnQE4iMdr09TZ3tXShfLfszjyk= ARC-Message-Signature: i=1; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240627-ipi-fixes-v1-2-9b061dc28a3a@flygoat.com> References: <20240627-ipi-fixes-v1-0-9b061dc28a3a@flygoat.com> In-Reply-To: <20240627-ipi-fixes-v1-0-9b061dc28a3a@flygoat.com> To: qemu-devel@nongnu.org Cc: Huacai Chen , Song Gao , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Jiaxun Yang X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=791; i=jiaxun.yang@flygoat.com; h=from:subject:message-id; bh=ieI8OByJYwoL4Sx5WKbjP4EnH6pItE07ZE+/vMWh1PE=; b=owGbwMvMwCXmXMhTe71c8zDjabUkhrSaZ59NFZv0eMVr7Pf8EzaQ6V8180XHa6uZ66PSzs/Rk Jm9UXdeRykLgxgXg6yYIkuIgFLfhsaLC64/yPoDM4eVCWQIAxenAEwkehLDP00h0TtHSxZd+WLr wn+Ch998VtuZ3Nkhi1he2c434XEVfMzwzyqvjyvwY1a0TzX3HLVtYl0sYc/5eh+rX33EeXb3O78 MHgA= X-Developer-Key: i=jiaxun.yang@flygoat.com; a=openpgp; fpr=980379BEFEBFBF477EA04EF9C111949073FC0F67 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=64.147.123.157; envelope-from=jiaxun.yang@flygoat.com; helo=wfhigh6-smtp.messagingengine.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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_LOW=-0.7, SPF_HELO_PASS=-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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @flygoat.com) X-ZM-MESSAGEID: 1719461714435100001 I would like to be informed on changes made to the LoongArch virt machine. I'm fairly familiar with Loongson-3 series platform hardware and doing firmwre (U-Boot) development as hobbyist on LoongArch virt platform, so I believe I can give positive review input to changes on that machine. Signed-off-by: Jiaxun Yang Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Song Gao --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 19f67dc5d215..9a646ea58483 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1239,6 +1239,7 @@ LoongArch Machines ------------------ Virt M: Song Gao +R: Jiaxun Yang S: Maintained F: docs/system/loongarch/virt.rst F: configs/targets/loongarch64-softmmu.mak --=20 2.43.0