[PATCH v1 02/12] target/riscv: Add target/riscv/kvm.c to place the public kvm interface

[Anup Patel]

On Sat, Nov 20, 2021 at 1:17 PM Yifei Jiang <jiangyifei at huawei.com> wrote:
>
> Add target/riscv/kvm.c to place kvm_arch_* function needed by
> kvm/kvm-all.c. Meanwhile, add kvm support in meson.build file.
>
> Signed-off-by: Yifei Jiang <jiangyifei at huawei.com>
> Signed-off-by: Mingwang Li <limingwang at huawei.com>
> Reviewed-by: Alistair Francis <alistair.francis at wdc.com>

Looks good to me.

Reviewed-by: Anup Patel <anup.patel at wdc.com>

Regards,
Anup

> ---
>  meson.build              |   2 +
>  target/riscv/kvm.c       | 133 +++++++++++++++++++++++++++++++++++++++
>  target/riscv/meson.build |   1 +
>  3 files changed, 136 insertions(+)
>  create mode 100644 target/riscv/kvm.c
>
> diff --git a/meson.build b/meson.build
> index 96de1a6ef9..ae35e76ea4 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -77,6 +77,8 @@ elif cpu in ['ppc', 'ppc64']
>    kvm_targets = ['ppc-softmmu', 'ppc64-softmmu']
>  elif cpu in ['mips', 'mips64']
>    kvm_targets = ['mips-softmmu', 'mipsel-softmmu', 'mips64-softmmu', 'mips64el-softmmu']
> +elif cpu in ['riscv']
> +  kvm_targets = ['riscv32-softmmu', 'riscv64-softmmu']
>  else
>    kvm_targets = []
>  endif
> diff --git a/target/riscv/kvm.c b/target/riscv/kvm.c
> new file mode 100644
> index 0000000000..687dd4b621
> --- /dev/null
> +++ b/target/riscv/kvm.c
> @@ -0,0 +1,133 @@
> +/*
> + * RISC-V implementation of KVM hooks
> + *
> + * Copyright (c) 2020 Huawei Technologies Co., Ltd
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms and conditions of the GNU General Public License,
> + * version 2 or later, as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope it will be useful, but WITHOUT
> + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
> + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
> + * more details.
> + *
> + * You should have received a copy of the GNU General Public License along with
> + * this program.  If not, see <http://www.gnu.org/licenses/>.
> + */
> +
> +#include "qemu/osdep.h"
> +#include <sys/ioctl.h>
> +
> +#include <linux/kvm.h>
> +
> +#include "qemu-common.h"
> +#include "qemu/timer.h"
> +#include "qemu/error-report.h"
> +#include "qemu/main-loop.h"
> +#include "sysemu/sysemu.h"
> +#include "sysemu/kvm.h"
> +#include "sysemu/kvm_int.h"
> +#include "cpu.h"
> +#include "trace.h"
> +#include "hw/pci/pci.h"
> +#include "exec/memattrs.h"
> +#include "exec/address-spaces.h"
> +#include "hw/boards.h"
> +#include "hw/irq.h"
> +#include "qemu/log.h"
> +#include "hw/loader.h"
> +
> +const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
> +    KVM_CAP_LAST_INFO
> +};
> +
> +int kvm_arch_get_registers(CPUState *cs)
> +{
> +    return 0;
> +}
> +
> +int kvm_arch_put_registers(CPUState *cs, int level)
> +{
> +    return 0;
> +}
> +
> +int kvm_arch_release_virq_post(int virq)
> +{
> +    return 0;
> +}
> +
> +int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route,
> +                             uint64_t address, uint32_t data, PCIDevice *dev)
> +{
> +    return 0;
> +}
> +
> +int kvm_arch_destroy_vcpu(CPUState *cs)
> +{
> +    return 0;
> +}
> +
> +unsigned long kvm_arch_vcpu_id(CPUState *cpu)
> +{
> +    return cpu->cpu_index;
> +}
> +
> +void kvm_arch_init_irq_routing(KVMState *s)
> +{
> +}
> +
> +int kvm_arch_init_vcpu(CPUState *cs)
> +{
> +    return 0;
> +}
> +
> +int kvm_arch_msi_data_to_gsi(uint32_t data)
> +{
> +    abort();
> +}
> +
> +int kvm_arch_add_msi_route_post(struct kvm_irq_routing_entry *route,
> +                                int vector, PCIDevice *dev)
> +{
> +    return 0;
> +}
> +
> +int kvm_arch_init(MachineState *ms, KVMState *s)
> +{
> +    return 0;
> +}
> +
> +int kvm_arch_irqchip_create(KVMState *s)
> +{
> +    return 0;
> +}
> +
> +int kvm_arch_process_async_events(CPUState *cs)
> +{
> +    return 0;
> +}
> +
> +void kvm_arch_pre_run(CPUState *cs, struct kvm_run *run)
> +{
> +}
> +
> +MemTxAttrs kvm_arch_post_run(CPUState *cs, struct kvm_run *run)
> +{
> +    return MEMTXATTRS_UNSPECIFIED;
> +}
> +
> +bool kvm_arch_stop_on_emulation_error(CPUState *cs)
> +{
> +    return true;
> +}
> +
> +int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run)
> +{
> +    return 0;
> +}
> +
> +bool kvm_arch_cpu_check_are_resettable(void)
> +{
> +    return true;
> +}
> diff --git a/target/riscv/meson.build b/target/riscv/meson.build
> index d5e0bc93ea..2faf08a941 100644
> --- a/target/riscv/meson.build
> +++ b/target/riscv/meson.build
> @@ -19,6 +19,7 @@ riscv_ss.add(files(
>    'bitmanip_helper.c',
>    'translate.c',
>  ))
> +riscv_ss.add(when: 'CONFIG_KVM', if_true: files('kvm.c'))
>
>  riscv_softmmu_ss = ss.source_set()
>  riscv_softmmu_ss.add(files(
> --
> 2.19.1
>
>
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