xref: /qemu/hw/intc/loongarch_pic_kvm.c (revision b758e28974614a15e70fbc983e28fe77852564ee)
1*b758e289SBibo Mao /* SPDX-License-Identifier: GPL-2.0-or-later */
2*b758e289SBibo Mao /*
3*b758e289SBibo Mao  * LoongArch kvm pch pic interrupt support
4*b758e289SBibo Mao  *
5*b758e289SBibo Mao  * Copyright (C) 2025 Loongson Technology Corporation Limited
6*b758e289SBibo Mao  */
7*b758e289SBibo Mao 
8*b758e289SBibo Mao #include "qemu/osdep.h"
9*b758e289SBibo Mao #include "qapi/error.h"
10*b758e289SBibo Mao #include "hw/boards.h"
11*b758e289SBibo Mao #include "hw/intc/loongarch_pch_pic.h"
12*b758e289SBibo Mao #include "hw/loongarch/virt.h"
13*b758e289SBibo Mao #include "hw/pci-host/ls7a.h"
14*b758e289SBibo Mao #include "system/kvm.h"
15*b758e289SBibo Mao 
16*b758e289SBibo Mao void kvm_pic_realize(DeviceState *dev, Error **errp)
17*b758e289SBibo Mao {
18*b758e289SBibo Mao     LoongarchPICState *lps = LOONGARCH_PIC(dev);
19*b758e289SBibo Mao     uint64_t pch_pic_base = VIRT_PCH_REG_BASE;
20*b758e289SBibo Mao     int ret;
21*b758e289SBibo Mao 
22*b758e289SBibo Mao     ret = kvm_create_device(kvm_state, KVM_DEV_TYPE_LOONGARCH_PCHPIC, false);
23*b758e289SBibo Mao     if (ret < 0) {
24*b758e289SBibo Mao         fprintf(stderr, "Create KVM_LOONGARCH_PCHPIC failed: %s\n",
25*b758e289SBibo Mao                 strerror(-ret));
26*b758e289SBibo Mao         abort();
27*b758e289SBibo Mao     }
28*b758e289SBibo Mao 
29*b758e289SBibo Mao     lps->dev_fd = ret;
30*b758e289SBibo Mao     ret = kvm_device_access(lps->dev_fd, KVM_DEV_LOONGARCH_PCH_PIC_GRP_CTRL,
31*b758e289SBibo Mao                             KVM_DEV_LOONGARCH_PCH_PIC_CTRL_INIT,
32*b758e289SBibo Mao                             &pch_pic_base, true, NULL);
33*b758e289SBibo Mao     if (ret < 0) {
34*b758e289SBibo Mao         fprintf(stderr, "KVM_LOONGARCH_PCH_PIC_INIT failed: %s\n",
35*b758e289SBibo Mao                 strerror(-ret));
36*b758e289SBibo Mao         abort();
37*b758e289SBibo Mao     }
38*b758e289SBibo Mao }
39