From patchwork Wed Jul 17 03:29:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lixianglai X-Patchwork-Id: 1961374 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4WP2464PhMz1xrQ for ; Wed, 17 Jul 2024 13:49:10 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sTve4-0006Tk-5u; Tue, 16 Jul 2024 23:48:00 -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 1sTvdz-0006IQ-Fe for qemu-devel@nongnu.org; Tue, 16 Jul 2024 23:47:56 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sTvdp-00047X-It for qemu-devel@nongnu.org; Tue, 16 Jul 2024 23:47:55 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8Cx7+vaPpdm3VoFAA--.13497S3; Wed, 17 Jul 2024 11:47:38 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Bx08TYPpdmIgdMAA--.29770S5; Wed, 17 Jul 2024 11:47:38 +0800 (CST) From: Xianglai Li To: qemu-devel@nongnu.org Cc: Paolo Bonzini , Song Gao , Huacai Chen , Jiaxun Yang , "Michael S. Tsirkin" , Cornelia Huck , kvm@vger.kernel.org, Bibo Mao Subject: [RFC 3/4] hw/loongarch: Add KVM pch pic device support Date: Wed, 17 Jul 2024 11:29:55 +0800 Message-Id: <5cb9e3d2beea1bf9434ebb1810f15049778bd3bc.1721186636.git.lixianglai@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: References: MIME-Version: 1.0 X-CM-TRANSID: AQAAf8Bx08TYPpdmIgdMAA--.29770S5 X-CM-SenderInfo: 5ol0xt5qjotxo6or00hjvr0hdfq/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass client-ip=114.242.206.163; envelope-from=lixianglai@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 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Added pch_pic interrupt controller for kvm emulation. The main process is to send the command word for creating an pch_pic device to the kernel, Delivers the pch pic interrupt controller configuration register base address to the kernel. When the VM is saved, the ioctl obtains the pch_pic interrupt controller data in the kernel and saves it. When the VM is recovered, the saved data is sent to the kernel. Signed-off-by: Xianglai Li --- Cc: Paolo Bonzini Cc: Song Gao Cc: Huacai Chen Cc: Jiaxun Yang Cc: "Michael S. Tsirkin" Cc: Cornelia Huck Cc: kvm@vger.kernel.org Cc: Bibo Mao hw/intc/Kconfig | 4 + hw/intc/loongarch_pch_pic.c | 20 ++- hw/intc/loongarch_pch_pic_kvm.c | 189 ++++++++++++++++++++++++++++ hw/intc/meson.build | 1 + hw/loongarch/virt.c | 65 +++++----- include/hw/intc/loongarch_pch_pic.h | 51 +++++++- linux-headers/asm-loongarch/kvm.h | 5 + linux-headers/linux/kvm.h | 2 + 8 files changed, 304 insertions(+), 33 deletions(-) create mode 100644 hw/intc/loongarch_pch_pic_kvm.c diff --git a/hw/intc/Kconfig b/hw/intc/Kconfig index c672774c6e..c9f96bffd6 100644 --- a/hw/intc/Kconfig +++ b/hw/intc/Kconfig @@ -98,6 +98,10 @@ config LOONGARCH_PCH_PIC bool select UNIMP +config LOONGARCH_PCH_PIC_KVM + bool + default y + config LOONGARCH_PCH_MSI select MSI_NONBROKEN bool diff --git a/hw/intc/loongarch_pch_pic.c b/hw/intc/loongarch_pch_pic.c index 2d5e65abff..b64e3db77f 100644 --- a/hw/intc/loongarch_pch_pic.c +++ b/hw/intc/loongarch_pch_pic.c @@ -16,18 +16,27 @@ #include "migration/vmstate.h" #include "trace.h" #include "qapi/error.h" +#include "sysemu/kvm.h" static void pch_pic_update_irq(LoongArchPCHPIC *s, uint64_t mask, int level) { uint64_t val; int irq; + int kvm_irq; if (level) { val = mask & s->intirr & ~s->int_mask; if (val) { irq = ctz64(val); s->intisr |= MAKE_64BIT_MASK(irq, 1); - qemu_set_irq(s->parent_irq[s->htmsi_vector[irq]], 1); + if (kvm_kernel_irqchip_allowed()) { + kvm_irq = ( + KVM_LOONGARCH_IRQ_TYPE_IOAPIC << KVM_LOONGARCH_IRQ_TYPE_SHIFT) + | (0 << KVM_LOONGARCH_IRQ_VCPU_SHIFT) | s->htmsi_vector[irq]; + kvm_set_irq(kvm_state, kvm_irq, !!level); + } else { + qemu_set_irq(s->parent_irq[s->htmsi_vector[irq]], 1); + } } } else { /* @@ -38,7 +47,14 @@ static void pch_pic_update_irq(LoongArchPCHPIC *s, uint64_t mask, int level) if (val) { irq = ctz64(val); s->intisr &= ~MAKE_64BIT_MASK(irq, 1); - qemu_set_irq(s->parent_irq[s->htmsi_vector[irq]], 0); + if (kvm_kernel_irqchip_allowed()) { + kvm_irq = ( + KVM_LOONGARCH_IRQ_TYPE_IOAPIC << KVM_LOONGARCH_IRQ_TYPE_SHIFT) + | (0 << KVM_LOONGARCH_IRQ_VCPU_SHIFT) | s->htmsi_vector[irq]; + kvm_set_irq(kvm_state, kvm_irq, !!level); + } else { + qemu_set_irq(s->parent_irq[s->htmsi_vector[irq]], 0); + } } } } diff --git a/hw/intc/loongarch_pch_pic_kvm.c b/hw/intc/loongarch_pch_pic_kvm.c new file mode 100644 index 0000000000..8f66d9a01f --- /dev/null +++ b/hw/intc/loongarch_pch_pic_kvm.c @@ -0,0 +1,189 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * LoongArch kvm pch pic interrupt support + * + * Copyright (C) 2024 Loongson Technology Corporation Limited + */ + +#include "qemu/osdep.h" +#include "hw/qdev-properties.h" +#include "qemu/typedefs.h" +#include "hw/intc/loongarch_pch_pic.h" +#include "hw/sysbus.h" +#include "linux/kvm.h" +#include "migration/vmstate.h" +#include "qapi/error.h" +#include "sysemu/kvm.h" +#include "hw/loongarch/virt.h" +#include "hw/pci-host/ls7a.h" +#include "qemu/error-report.h" + +static void kvm_pch_pic_access_regs(int fd, uint64_t addr, + void *val, int is_write) +{ + kvm_device_access(fd, KVM_DEV_LOONGARCH_PCH_PIC_GRP_REGS, + addr, val, is_write, &error_abort); +} + +static int kvm_loongarch_pch_pic_pre_save(void *opaque) +{ + KVMLoongArchPCHPIC *s = (KVMLoongArchPCHPIC *)opaque; + KVMLoongArchPCHPICClass *class = KVM_LOONGARCH_PCH_PIC_GET_CLASS(s); + int fd = class->dev_fd; + + kvm_pch_pic_access_regs(fd, PCH_PIC_MASK_START, + (void *)&s->int_mask, false); + kvm_pch_pic_access_regs(fd, PCH_PIC_HTMSI_EN_START, + (void *)&s->htmsi_en, false); + kvm_pch_pic_access_regs(fd, PCH_PIC_EDGE_START, + (void *)&s->intedge, false); + kvm_pch_pic_access_regs(fd, PCH_PIC_AUTO_CTRL0_START, + (void *)&s->auto_crtl0, false); + kvm_pch_pic_access_regs(fd, PCH_PIC_AUTO_CTRL1_START, + (void *)&s->auto_crtl1, false); + kvm_pch_pic_access_regs(fd, PCH_PIC_ROUTE_ENTRY_START, + (void *)s->route_entry, false); + kvm_pch_pic_access_regs(fd, PCH_PIC_HTMSI_VEC_START, + (void *)s->htmsi_vector, false); + kvm_pch_pic_access_regs(fd, PCH_PIC_INT_IRR_START, + (void *)&s->intirr, false); + kvm_pch_pic_access_regs(fd, PCH_PIC_INT_ISR_START, + (void *)&s->intisr, false); + kvm_pch_pic_access_regs(fd, PCH_PIC_POLARITY_START, + (void *)&s->int_polarity, false); + + return 0; +} + +static int kvm_loongarch_pch_pic_post_load(void *opaque, int version_id) +{ + KVMLoongArchPCHPIC *s = (KVMLoongArchPCHPIC *)opaque; + KVMLoongArchPCHPICClass *class = KVM_LOONGARCH_PCH_PIC_GET_CLASS(s); + int fd = class->dev_fd; + + kvm_pch_pic_access_regs(fd, PCH_PIC_MASK_START, + (void *)&s->int_mask, true); + kvm_pch_pic_access_regs(fd, PCH_PIC_HTMSI_EN_START, + (void *)&s->htmsi_en, true); + kvm_pch_pic_access_regs(fd, PCH_PIC_EDGE_START, + (void *)&s->intedge, true); + kvm_pch_pic_access_regs(fd, PCH_PIC_AUTO_CTRL0_START, + (void *)&s->auto_crtl0, true); + kvm_pch_pic_access_regs(fd, PCH_PIC_AUTO_CTRL1_START, + (void *)&s->auto_crtl1, true); + kvm_pch_pic_access_regs(fd, PCH_PIC_ROUTE_ENTRY_START, + (void *)s->route_entry, true); + kvm_pch_pic_access_regs(fd, PCH_PIC_HTMSI_VEC_START, + (void *)s->htmsi_vector, true); + kvm_pch_pic_access_regs(fd, PCH_PIC_INT_IRR_START, + (void *)&s->intirr, true); + kvm_pch_pic_access_regs(fd, PCH_PIC_INT_ISR_START, + (void *)&s->intisr, true); + kvm_pch_pic_access_regs(fd, PCH_PIC_POLARITY_START, + (void *)&s->int_polarity, true); + + return 0; +} + +static void kvm_pch_pic_handler(void *opaque, int irq, int level) +{ + int kvm_irq; + + if (kvm_enabled()) { + kvm_irq = \ + (KVM_LOONGARCH_IRQ_TYPE_IOAPIC << KVM_LOONGARCH_IRQ_TYPE_SHIFT) + | (0 << KVM_LOONGARCH_IRQ_VCPU_SHIFT) | irq; + kvm_set_irq(kvm_state, kvm_irq, !!level); + } +} + +static void kvm_loongarch_pch_pic_realize(DeviceState *dev, Error **errp) +{ + KVMLoongArchPCHPICClass *pch_pic_class = + KVM_LOONGARCH_PCH_PIC_GET_CLASS(dev); + struct kvm_create_device cd = {0}; + uint64_t pch_pic_base = VIRT_PCH_REG_BASE; + Error *err = NULL; + int ret; + + pch_pic_class->parent_realize(dev, &err); + if (err) { + error_propagate(errp, err); + return; + } + + if (!pch_pic_class->is_created) { + cd.type = KVM_DEV_TYPE_LA_PCH_PIC; + ret = kvm_vm_ioctl(kvm_state, KVM_CREATE_DEVICE, &cd); + if (ret < 0) { + error_setg_errno(errp, errno, + "Creating the KVM pch pic device failed"); + return; + } + pch_pic_class->is_created = true; + pch_pic_class->dev_fd = cd.fd; + fprintf(stdout, "Create LoongArch pch pic irqchip in KVM done!\n"); + + ret = kvm_device_access(cd.fd, KVM_DEV_LOONGARCH_PCH_PIC_GRP_CTRL, + KVM_DEV_LOONGARCH_PCH_PIC_CTRL_INIT, + &pch_pic_base, true, NULL); + if (ret < 0) { + error_report( + "KVM EXTIOI: failed to set the base address of EXTIOI"); + exit(1); + } + + qdev_init_gpio_in(dev, kvm_pch_pic_handler, VIRT_PCH_PIC_IRQ_NUM); + } +} + +static const VMStateDescription vmstate_kvm_loongarch_pch_pic = { + .name = TYPE_LOONGARCH_PCH_PIC, + .version_id = 1, + .minimum_version_id = 1, + .pre_save = kvm_loongarch_pch_pic_pre_save, + .post_load = kvm_loongarch_pch_pic_post_load, + .fields = (const VMStateField[]) { + VMSTATE_UINT64(int_mask, KVMLoongArchPCHPIC), + VMSTATE_UINT64(htmsi_en, KVMLoongArchPCHPIC), + VMSTATE_UINT64(intedge, KVMLoongArchPCHPIC), + VMSTATE_UINT64(intclr, KVMLoongArchPCHPIC), + VMSTATE_UINT64(auto_crtl0, KVMLoongArchPCHPIC), + VMSTATE_UINT64(auto_crtl1, KVMLoongArchPCHPIC), + VMSTATE_UINT8_ARRAY(route_entry, KVMLoongArchPCHPIC, 64), + VMSTATE_UINT8_ARRAY(htmsi_vector, KVMLoongArchPCHPIC, 64), + VMSTATE_UINT64(last_intirr, KVMLoongArchPCHPIC), + VMSTATE_UINT64(intirr, KVMLoongArchPCHPIC), + VMSTATE_UINT64(intisr, KVMLoongArchPCHPIC), + VMSTATE_UINT64(int_polarity, KVMLoongArchPCHPIC), + VMSTATE_END_OF_LIST() + } +}; + + +static void kvm_loongarch_pch_pic_class_init(ObjectClass *oc, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(oc); + KVMLoongArchPCHPICClass *pch_pic_class = KVM_LOONGARCH_PCH_PIC_CLASS(oc); + + pch_pic_class->parent_realize = dc->realize; + dc->realize = kvm_loongarch_pch_pic_realize; + pch_pic_class->is_created = false; + dc->vmsd = &vmstate_kvm_loongarch_pch_pic; + +} + +static const TypeInfo kvm_loongarch_pch_pic_info = { + .name = TYPE_KVM_LOONGARCH_PCH_PIC, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(KVMLoongArchPCHPIC), + .class_size = sizeof(KVMLoongArchPCHPICClass), + .class_init = kvm_loongarch_pch_pic_class_init, +}; + +static void kvm_loongarch_pch_pic_register_types(void) +{ + type_register_static(&kvm_loongarch_pch_pic_info); +} + +type_init(kvm_loongarch_pch_pic_register_types) diff --git a/hw/intc/meson.build b/hw/intc/meson.build index 3f29b3f5fd..4fddc80383 100644 --- a/hw/intc/meson.build +++ b/hw/intc/meson.build @@ -75,3 +75,4 @@ specific_ss.add(when: 'CONFIG_LOONGARCH_PCH_PIC', if_true: files('loongarch_pch_ specific_ss.add(when: 'CONFIG_LOONGARCH_PCH_MSI', if_true: files('loongarch_pch_msi.c')) specific_ss.add(when: 'CONFIG_LOONGARCH_EXTIOI', if_true: files('loongarch_extioi.c')) specific_ss.add(when: 'CONFIG_LOONGARCH_EXTIOI_KVM', if_true: files('loongarch_extioi_kvm.c')) +specific_ss.add(when: 'CONFIG_LOONGARCH_PCH_PIC_KVM', if_true: files('loongarch_pch_pic_kvm.c')) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 288aac5822..9e9e8f5d14 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -862,40 +862,45 @@ static void virt_irq_init(LoongArchVirtMachineState *lvms) /* Add Extend I/O Interrupt Controller node */ fdt_add_eiointc_node(lvms, &cpuintc_phandle, &eiointc_phandle); - pch_pic = qdev_new(TYPE_LOONGARCH_PCH_PIC); - num = VIRT_PCH_PIC_IRQ_NUM; - qdev_prop_set_uint32(pch_pic, "pch_pic_irq_num", num); - d = SYS_BUS_DEVICE(pch_pic); - sysbus_realize_and_unref(d, &error_fatal); - memory_region_add_subregion(get_system_memory(), VIRT_IOAPIC_REG_BASE, - sysbus_mmio_get_region(d, 0)); - memory_region_add_subregion(get_system_memory(), + if (kvm_kernel_irqchip_allowed()) { + pch_pic = qdev_new(TYPE_KVM_LOONGARCH_PCH_PIC); + sysbus_realize_and_unref(SYS_BUS_DEVICE(pch_pic), &error_fatal); + } else { + pch_pic = qdev_new(TYPE_LOONGARCH_PCH_PIC); + num = VIRT_PCH_PIC_IRQ_NUM; + qdev_prop_set_uint32(pch_pic, "pch_pic_irq_num", num); + d = SYS_BUS_DEVICE(pch_pic); + sysbus_realize_and_unref(d, &error_fatal); + memory_region_add_subregion(get_system_memory(), VIRT_IOAPIC_REG_BASE, + sysbus_mmio_get_region(d, 0)); + memory_region_add_subregion(get_system_memory(), VIRT_IOAPIC_REG_BASE + PCH_PIC_ROUTE_ENTRY_OFFSET, sysbus_mmio_get_region(d, 1)); - memory_region_add_subregion(get_system_memory(), - VIRT_IOAPIC_REG_BASE + PCH_PIC_INT_STATUS_LO, - sysbus_mmio_get_region(d, 2)); - - /* Connect pch_pic irqs to extioi */ - for (i = 0; i < num; i++) { - qdev_connect_gpio_out(DEVICE(d), i, qdev_get_gpio_in(extioi, i)); - } + memory_region_add_subregion(get_system_memory(), + VIRT_IOAPIC_REG_BASE + PCH_PIC_INT_STATUS_LO, + sysbus_mmio_get_region(d, 2)); - /* Add PCH PIC node */ - fdt_add_pch_pic_node(lvms, &eiointc_phandle, &pch_pic_phandle); + /* Connect pch_pic irqs to extioi */ + for (i = 0; i < num; i++) { + qdev_connect_gpio_out(DEVICE(d), i, qdev_get_gpio_in(extioi, i)); + } - pch_msi = qdev_new(TYPE_LOONGARCH_PCH_MSI); - start = num; - num = EXTIOI_IRQS - start; - qdev_prop_set_uint32(pch_msi, "msi_irq_base", start); - qdev_prop_set_uint32(pch_msi, "msi_irq_num", num); - d = SYS_BUS_DEVICE(pch_msi); - sysbus_realize_and_unref(d, &error_fatal); - sysbus_mmio_map(d, 0, VIRT_PCH_MSI_ADDR_LOW); - for (i = 0; i < num; i++) { - /* Connect pch_msi irqs to extioi */ - qdev_connect_gpio_out(DEVICE(d), i, - qdev_get_gpio_in(extioi, i + start)); + /* Add PCH PIC node */ + fdt_add_pch_pic_node(lvms, &eiointc_phandle, &pch_pic_phandle); + + pch_msi = qdev_new(TYPE_LOONGARCH_PCH_MSI); + start = num; + num = EXTIOI_IRQS - start; + qdev_prop_set_uint32(pch_msi, "msi_irq_base", start); + qdev_prop_set_uint32(pch_msi, "msi_irq_num", num); + d = SYS_BUS_DEVICE(pch_msi); + sysbus_realize_and_unref(d, &error_fatal); + sysbus_mmio_map(d, 0, VIRT_PCH_MSI_ADDR_LOW); + for (i = 0; i < num; i++) { + /* Connect pch_msi irqs to extioi */ + qdev_connect_gpio_out(DEVICE(d), i, + qdev_get_gpio_in(extioi, i + start)); + } } /* Add PCH MSI node */ diff --git a/include/hw/intc/loongarch_pch_pic.h b/include/hw/intc/loongarch_pch_pic.h index d5437e88f2..77f4cd74a1 100644 --- a/include/hw/intc/loongarch_pch_pic.h +++ b/include/hw/intc/loongarch_pch_pic.h @@ -7,7 +7,8 @@ #include "hw/sysbus.h" -#define TYPE_LOONGARCH_PCH_PIC "loongarch_pch_pic" +#define TYPE_LOONGARCH_PCH_PIC "loongarch_pch_pic" +#define TYPE_KVM_LOONGARCH_PCH_PIC "loongarch_kvm_pch_pic" #define PCH_PIC_NAME(name) TYPE_LOONGARCH_PCH_PIC#name OBJECT_DECLARE_SIMPLE_TYPE(LoongArchPCHPIC, LOONGARCH_PCH_PIC) @@ -37,6 +38,19 @@ OBJECT_DECLARE_SIMPLE_TYPE(LoongArchPCHPIC, LOONGARCH_PCH_PIC) #define PCH_PIC_INT_POL_LO 0x3e0 #define PCH_PIC_INT_POL_HI 0x3e4 +#define PCH_PIC_INT_ID_START PCH_PIC_INT_ID_LO +#define PCH_PIC_MASK_START PCH_PIC_INT_MASK_LO +#define PCH_PIC_HTMSI_EN_START PCH_PIC_HTMSI_EN_LO +#define PCH_PIC_EDGE_START PCH_PIC_INT_EDGE_LO +#define PCH_PIC_CLEAR_START PCH_PIC_INT_CLEAR_LO +#define PCH_PIC_AUTO_CTRL0_START PCH_PIC_AUTO_CTRL0_LO +#define PCH_PIC_AUTO_CTRL1_START PCH_PIC_AUTO_CTRL1_LO +#define PCH_PIC_ROUTE_ENTRY_START PCH_PIC_ROUTE_ENTRY_OFFSET +#define PCH_PIC_HTMSI_VEC_START PCH_PIC_HTMSI_VEC_OFFSET +#define PCH_PIC_INT_IRR_START 0x380 +#define PCH_PIC_INT_ISR_START PCH_PIC_INT_STATUS_LO +#define PCH_PIC_POLARITY_START PCH_PIC_INT_POL_LO + #define STATUS_LO_START 0 #define STATUS_HI_START 0x4 #define POL_LO_START 0x40 @@ -67,3 +81,38 @@ struct LoongArchPCHPIC { MemoryRegion iomem8; unsigned int irq_num; }; + +struct KVMLoongArchPCHPIC { + SysBusDevice parent_obj; + uint64_t int_mask; /*0x020 interrupt mask register*/ + uint64_t htmsi_en; /*0x040 1=msi*/ + uint64_t intedge; /*0x060 edge=1 level =0*/ + uint64_t intclr; /*0x080 for clean edge int,set 1 clean,set 0 is noused*/ + uint64_t auto_crtl0; /*0x0c0*/ + uint64_t auto_crtl1; /*0x0e0*/ + uint64_t last_intirr; /* edge detection */ + uint64_t intirr; /* 0x380 interrupt request register */ + uint64_t intisr; /* 0x3a0 interrupt service register */ + /* + * 0x3e0 interrupt level polarity selection + * register 0 for high level trigger + */ + uint64_t int_polarity; + + uint8_t route_entry[64]; /*0x100 - 0x138*/ + uint8_t htmsi_vector[64]; /*0x200 - 0x238*/ +}; +typedef struct KVMLoongArchPCHPIC KVMLoongArchPCHPIC; +DECLARE_INSTANCE_CHECKER(KVMLoongArchPCHPIC, KVM_LOONGARCH_PCH_PIC, + TYPE_KVM_LOONGARCH_PCH_PIC) + +struct KVMLoongArchPCHPICClass { + SysBusDeviceClass parent_class; + DeviceRealize parent_realize; + + bool is_created; + int dev_fd; +}; +typedef struct KVMLoongArchPCHPICClass KVMLoongArchPCHPICClass; +DECLARE_CLASS_CHECKERS(KVMLoongArchPCHPICClass, KVM_LOONGARCH_PCH_PIC, + TYPE_KVM_LOONGARCH_PCH_PIC) diff --git a/linux-headers/asm-loongarch/kvm.h b/linux-headers/asm-loongarch/kvm.h index c71221d1b0..cd0aebd805 100644 --- a/linux-headers/asm-loongarch/kvm.h +++ b/linux-headers/asm-loongarch/kvm.h @@ -110,4 +110,9 @@ struct kvm_iocsr_entry { #define KVM_DEV_LOONGARCH_IPI_GRP_REGS 1 #define KVM_DEV_LOONGARCH_EXTIOI_GRP_REGS 1 + +#define KVM_DEV_LOONGARCH_PCH_PIC_GRP_CTRL 0 +#define KVM_DEV_LOONGARCH_PCH_PIC_CTRL_INIT 0 + +#define KVM_DEV_LOONGARCH_PCH_PIC_GRP_REGS 1 #endif /* __UAPI_ASM_LOONGARCH_KVM_H */ diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h index 1dca283ecd..48eaeb91f2 100644 --- a/linux-headers/linux/kvm.h +++ b/linux-headers/linux/kvm.h @@ -1138,6 +1138,8 @@ enum kvm_device_type { #define KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_RISCV_AIA, #define KVM_DEV_TYPE_RISCV_AIA KVM_DEV_TYPE_RISCV_AIA + KVM_DEV_TYPE_LA_PCH_PIC, +#define KVM_DEV_TYPE_LA_PCH_PIC KVM_DEV_TYPE_LA_PCH_PIC KVM_DEV_TYPE_LA_IPI, #define KVM_DEV_TYPE_LA_IPI KVM_DEV_TYPE_LA_IPI KVM_DEV_TYPE_LA_EXTIOI,