| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | /* |
| 3 | * LoongArch DINTC interrupt kvm support |
| 4 | * |
| 5 | * Copyright (C) 2025 Loongson Technology Corporation Limited |
| 6 | */ |
| 7 | |
| 8 | #include "qemu/osdep.h" |
| 9 | #include "hw/intc/loongarch_dintc.h" |
| 10 | #include "linux/kvm.h" |
| 11 | #include "qapi/error.h" |
| 12 | #include "system/kvm.h" |
| 13 | |
| 14 | void kvm_dintc_realize(DeviceState *dev, Error **errp) |
| 15 | { |
| 16 | LoongArchDINTCState *lds = LOONGARCH_DINTC(dev); |
| 17 | int ret; |
| 18 | |
| 19 | ret = kvm_create_device(kvm_state, KVM_DEV_TYPE_LOONGARCH_DMSINTC, false); |
| 20 | if (ret < 0) { |
| 21 | fprintf(stderr, "create KVM_DEV_TYPE_LOONGARCH_AVEC failed: %s\n", |
| 22 | strerror(-ret)); |
| 23 | abort(); |
| 24 | } |
| 25 | lds->dev_fd = ret; |
| 26 | |
| 27 | /* init dintc config */ |
| 28 | lds->msg_addr_base = VIRT_DINTC_BASE; |
| 29 | lds->msg_addr_size = VIRT_DINTC_SIZE; |
| 30 | |
| 31 | ret = kvm_device_access(lds->dev_fd, KVM_DEV_LOONGARCH_DMSINTC_GRP_CTRL, |
| 32 | KVM_DEV_LOONGARCH_DMSINTC_MSG_ADDR_BASE, |
| 33 | &lds->msg_addr_base, true, NULL); |
| 34 | if (ret < 0) { |
| 35 | fprintf(stderr, "KVM_DEV_LOONGARCH_DINTC_MSG_ADDR_BASE failed: %s\n", |
| 36 | strerror(ret)); |
| 37 | abort(); |
| 38 | } |
| 39 | |
| 40 | ret = kvm_device_access(lds->dev_fd, KVM_DEV_LOONGARCH_DMSINTC_GRP_CTRL, |
| 41 | KVM_DEV_LOONGARCH_DMSINTC_MSG_ADDR_SIZE, |
| 42 | &lds->msg_addr_size, true, NULL); |
| 43 | if (ret < 0) { |
| 44 | fprintf(stderr, "KVM_DEV_LOONGARCH_DINTC_MSG_ADDR_SIZE failed: %s\n", |
| 45 | strerror(ret)); |
| 46 | abort(); |
| 47 | } |
| 48 | } |