From nobody Fri Nov 22 19:37:37 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1716885646068788.174513247772; Tue, 28 May 2024 01:40:46 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sBsMQ-0002m6-PD; Tue, 28 May 2024 04:39:10 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sBsMO-0002ip-AH for qemu-devel@nongnu.org; Tue, 28 May 2024 04:39:08 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sBsMK-0004ok-Qk for qemu-devel@nongnu.org; Tue, 28 May 2024 04:39:08 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8DxFPAmmFVmqJwAAA--.2692S3; Tue, 28 May 2024 16:39:02 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8CxosQfmFVmQcYLAA--.20131S5; Tue, 28 May 2024 16:39:01 +0800 (CST) From: Song Gao To: maobibo@loongson.cn Cc: qemu-devel@nongnu.org Subject: [PATCH v4 3/3] hw/loongarch/virt: Enable extioi virt extension Date: Tue, 28 May 2024 16:38:55 +0800 Message-Id: <20240528083855.1912757-4-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20240528083855.1912757-1-gaosong@loongson.cn> References: <20240528083855.1912757-1-gaosong@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: AQAAf8CxosQfmFVmQcYLAA--.20131S5 X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== 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=114.242.206.163; envelope-from=gaosong@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, 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-ZM-MESSAGEID: 1716885646772100001 Content-Type: text/plain; charset="utf-8" This patch adds a new board attribute 'v-eiointc'. A value of true enables the virt extended I/O interrupt controller. VMs working in kvm mode have 'v-eiointc' enabled by default. Signed-off-by: Song Gao Reviewed-by: Bibo Mao --- include/hw/loongarch/virt.h | 1 + target/loongarch/cpu.h | 1 + hw/loongarch/virt.c | 88 +++++++++++++++++++++++++++++++++++-- 3 files changed, 87 insertions(+), 3 deletions(-) diff --git a/include/hw/loongarch/virt.h b/include/hw/loongarch/virt.h index 2c4f5cf9c8..8fdfacf268 100644 --- a/include/hw/loongarch/virt.h +++ b/include/hw/loongarch/virt.h @@ -50,6 +50,7 @@ struct LoongArchVirtMachineState { Notifier machine_done; Notifier powerdown_notifier; OnOffAuto acpi; + OnOffAuto veiointc; char *oem_id; char *oem_table_id; DeviceState *acpi_ged; diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h index 41b8e6d96d..6c41fafb70 100644 --- a/target/loongarch/cpu.h +++ b/target/loongarch/cpu.h @@ -36,6 +36,7 @@ #define CPUNAME_REG 0x20 #define MISC_FUNC_REG 0x420 #define IOCSRM_EXTIOI_EN 48 +#define IOCSRM_EXTIOI_INT_ENCODE 49 =20 #define IOCSR_MEM_SIZE 0x428 =20 diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index a70eeda2fd..b33b1ad9d3 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -11,6 +11,7 @@ #include "hw/boards.h" #include "hw/char/serial.h" #include "sysemu/kvm.h" +#include "sysemu/tcg.h" #include "sysemu/sysemu.h" #include "sysemu/qtest.h" #include "sysemu/runstate.h" @@ -47,6 +48,31 @@ #include "hw/block/flash.h" #include "qemu/error-report.h" =20 +static bool virt_is_veiointc_enabled(LoongArchVirtMachineState *lvms) +{ + if (lvms->veiointc =3D=3D ON_OFF_AUTO_OFF) { + return false; + } + return true; +} + +static void virt_get_veiointc(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + LoongArchVirtMachineState *lvms =3D LOONGARCH_VIRT_MACHINE(obj); + OnOffAuto veiointc =3D lvms->veiointc; + + visit_type_OnOffAuto(v, name, &veiointc, errp); +} + +static void virt_set_veiointc(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + LoongArchVirtMachineState *lvms =3D LOONGARCH_VIRT_MACHINE(obj); + + visit_type_OnOffAuto(v, name, &lvms->veiointc, errp); +} + static PFlashCFI01 *virt_flash_create1(LoongArchVirtMachineState *lvms, const char *name, const char *alias_prop_name) @@ -789,9 +815,16 @@ static void virt_irq_init(LoongArchVirtMachineState *l= vms) /* Create EXTIOI device */ extioi =3D qdev_new(TYPE_LOONGARCH_EXTIOI); qdev_prop_set_uint32(extioi, "num-cpu", ms->smp.cpus); + if (virt_is_veiointc_enabled(lvms)) { + qdev_prop_set_bit(extioi, "has-virtualization-extension", true); + } sysbus_realize_and_unref(SYS_BUS_DEVICE(extioi), &error_fatal); memory_region_add_subregion(&lvms->system_iocsr, APIC_BASE, - sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), 0)); + sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), 0)); + if (virt_is_veiointc_enabled(lvms)) { + memory_region_add_subregion(&lvms->system_iocsr, EXTIOI_VIRT_BASE, + sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), 1)); + } =20 /* * connect ext irq to the cpu irq @@ -898,11 +931,37 @@ static void virt_firmware_init(LoongArchVirtMachineSt= ate *lvms) } } =20 - static MemTxResult virt_iocsr_misc_write(void *opaque, hwaddr addr, uint64_t val, unsigned size, MemTxAttrs attrs) { + LoongArchVirtMachineState *lvms =3D LOONGARCH_VIRT_MACHINE(opaque); + uint64_t features; + + switch (addr) { + case MISC_FUNC_REG: + if (!virt_is_veiointc_enabled(lvms)) { + return MEMTX_OK; + } + + features =3D address_space_ldl(&lvms->as_iocsr, + EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG, + attrs, NULL); + if (val & BIT_ULL(IOCSRM_EXTIOI_EN)) { + features |=3D BIT(EXTIOI_ENABLE); + } + if (val & BIT_ULL(IOCSRM_EXTIOI_INT_ENCODE)) { + features |=3D BIT(EXTIOI_ENABLE_INT_ENCODE); + } + + address_space_stl(&lvms->as_iocsr, + EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG, + features, attrs, NULL); + break; + default: + g_assert_not_reached(); + } + return MEMTX_OK; } =20 @@ -910,7 +969,9 @@ static MemTxResult virt_iocsr_misc_read(void *opaque, h= waddr addr, uint64_t *data, unsigned size, MemTxAttrs attrs) { + LoongArchVirtMachineState *lvms =3D LOONGARCH_VIRT_MACHINE(opaque); uint64_t ret =3D 0; + int features; =20 switch (addr) { case VERSION_REG: @@ -929,7 +990,20 @@ static MemTxResult virt_iocsr_misc_read(void *opaque, = hwaddr addr, ret =3D 0x303030354133ULL; /* "3A5000" */ break; case MISC_FUNC_REG: - ret =3D BIT_ULL(IOCSRM_EXTIOI_EN); + if (!virt_is_veiointc_enabled(lvms)) { + ret |=3D BIT_ULL(IOCSRM_EXTIOI_EN); + break; + } + + features =3D address_space_ldl(&lvms->as_iocsr, + EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG, + attrs, NULL); + if (features & BIT(EXTIOI_ENABLE)) { + ret |=3D BIT_ULL(IOCSRM_EXTIOI_EN); + } + if (features & BIT(EXTIOI_ENABLE_INT_ENCODE)) { + ret |=3D BIT_ULL(IOCSRM_EXTIOI_INT_ENCODE); + } break; default: g_assert_not_reached(); @@ -1151,6 +1225,9 @@ static void virt_initfn(Object *obj) { LoongArchVirtMachineState *lvms =3D LOONGARCH_VIRT_MACHINE(obj); =20 + if (tcg_enabled()) { + lvms->veiointc =3D ON_OFF_AUTO_OFF; + } lvms->acpi =3D ON_OFF_AUTO_AUTO; lvms->oem_id =3D g_strndup(ACPI_BUILD_APPNAME6, 6); lvms->oem_table_id =3D g_strndup(ACPI_BUILD_APPNAME8, 8); @@ -1336,6 +1413,11 @@ static void virt_class_init(ObjectClass *oc, void *d= ata) NULL, NULL); object_class_property_set_description(oc, "acpi", "Enable ACPI"); + object_class_property_add(oc, "v-eiointc", "OnOffAuto", + virt_get_veiointc, virt_set_veiointc, + NULL, NULL); + object_class_property_set_description(oc, "v-eiointc", + "Enable Virt Extend I/O Interrupt Controller."= ); machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE); #ifdef CONFIG_TPM machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS); --=20 2.34.1