diff options
Diffstat (limited to 'hw/intc/loongarch_pic_kvm.c')
| -rw-r--r-- | hw/intc/loongarch_pic_kvm.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/hw/intc/loongarch_pic_kvm.c b/hw/intc/loongarch_pic_kvm.c new file mode 100644 index 0000000000..ee77f04a13 --- /dev/null +++ b/hw/intc/loongarch_pic_kvm.c @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * LoongArch kvm pch pic interrupt support + * + * Copyright (C) 2025 Loongson Technology Corporation Limited + */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "hw/boards.h" +#include "hw/intc/loongarch_pch_pic.h" +#include "hw/loongarch/virt.h" +#include "hw/pci-host/ls7a.h" +#include "system/kvm.h" + +void kvm_pic_realize(DeviceState *dev, Error **errp) +{ + LoongarchPICState *lps = LOONGARCH_PIC(dev); + uint64_t pch_pic_base = VIRT_PCH_REG_BASE; + int ret; + + ret = kvm_create_device(kvm_state, KVM_DEV_TYPE_LOONGARCH_PCHPIC, false); + if (ret < 0) { + fprintf(stderr, "Create KVM_LOONGARCH_PCHPIC failed: %s\n", + strerror(-ret)); + abort(); + } + + lps->dev_fd = ret; + ret = kvm_device_access(lps->dev_fd, KVM_DEV_LOONGARCH_PCH_PIC_GRP_CTRL, + KVM_DEV_LOONGARCH_PCH_PIC_CTRL_INIT, + &pch_pic_base, true, NULL); + if (ret < 0) { + fprintf(stderr, "KVM_LOONGARCH_PCH_PIC_INIT failed: %s\n", + strerror(-ret)); + abort(); + } +} |