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GitHub Repository: google/crosvm
 Path: blob/main/kvm_sys/bindgen.sh
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#!/usr/bin/env bash

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# Copyright 2022 The ChromiumOS Authors

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# Use of this source code is governed by a BSD-style license that can be

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# found in the LICENSE file.

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# Regenerate kvm_sys bindgen bindings.

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set -euo pipefail

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cd "$(dirname "${BASH_SOURCE[0]}")/.."

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source tools/impl/bindgen-common.sh

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KVM_EXTRAS="// Added by kvm_sys/bindgen.sh

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use zerocopy::FromBytes;

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use zerocopy::Immutable;

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use zerocopy::IntoBytes;

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use zerocopy::KnownLayout;

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// TODO(b/388092267): Replace this with an upstream equivalent when available.

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// The original index (236) used in the ChromeOS v6.6 kernel was reused upstream for another

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// capability, so this may return incorrect information on some kernels.

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pub const KVM_CAP_USER_CONFIGURE_NONCOHERENT_DMA_CROS: u32 = 236;

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pub const KVM_CAP_USER_CONFIGURE_NONCOHERENT_DMA: u32 = 239;

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pub const KVM_MEM_NON_COHERENT_DMA: u32 = 8;

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// TODO(qwandor): Update this once the pKVM patches are merged upstream with a stable capability ID.

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pub const KVM_CAP_ARM_PROTECTED_VM: u32 = 0xffbadab1;

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pub const KVM_CAP_ARM_PROTECTED_VM_FLAGS_SET_FW_IPA: u32 = 0;

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pub const KVM_CAP_ARM_PROTECTED_VM_FLAGS_INFO: u32 = 1;

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pub const KVM_CAP_ARM_PROTECTED_VM_FLAGS_SET_FFA: u32 = 2;

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pub const KVM_VM_TYPE_ARM_PROTECTED: u32 = 0x80000000;

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pub const KVM_X86_PKVM_PROTECTED_VM: u32 = 28;

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pub const KVM_CAP_X86_PROTECTED_VM: u32 = 0xffbadab2;

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pub const KVM_CAP_X86_PROTECTED_VM_FLAGS_SET_FW_GPA: u32 = 0;

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pub const KVM_CAP_X86_PROTECTED_VM_FLAGS_INFO: u32 = 1;

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pub const KVM_DEV_VFIO_PVIOMMU: u32 = 5;

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pub const KVM_DEV_VFIO_PVIOMMU_ATTACH: u32 = 1;

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#[repr(C)]

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#[derive(Debug, Default, Copy, Clone)]

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pub struct kvm_vfio_iommu_info {

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    pub size: u32,

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    pub device_fd: i32,

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    pub nr_sids: u32,

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    pub __reserved: u32,

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}

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pub const KVM_DEV_VFIO_PVIOMMU_GET_INFO: u32 = 2;

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#[repr(C)]

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#[derive(Debug, Default, Copy, Clone)]

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pub struct kvm_vfio_iommu_config {

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    pub size: u32,

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    pub device_fd: i32,

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    pub sid_idx: u32,

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    pub vsid: u32,

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    pub __reserved: u32,

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}"

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bindgen_generate \

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    --flexarray-dst \

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    --raw-line "${KVM_EXTRAS}" \

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    --blocklist-item='__kernel.*' \

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    --blocklist-item='__BITS_PER_.*' \

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    --blocklist-item='__FD_SETSIZE' \

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    --blocklist-item='_?IOC.*' \

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    --with-derive-custom "kvm_regs=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_sregs=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_fpu=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_debugregs=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_xcr=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_xcrs=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_lapic_state=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_mp_state=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_vcpu_events=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_vcpu_events__bindgen_ty_1=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_vcpu_events__bindgen_ty_2=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_vcpu_events__bindgen_ty_3=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_vcpu_events__bindgen_ty_4=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_vcpu_events__bindgen_ty_5=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_dtable=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_segment=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_pic_state=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_pit_state2=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_clock_data=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_pit_channel_state=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_cpuid2=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_cpuid_entry2=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_entry=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_entry__bindgen_ty_1=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_hv_sint=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_irqchip=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_msi=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_msi__bindgen_ty_1=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_s390_adapter=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_xen_evtchn=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_msr_entry=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_msr_list=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_msrs=FromBytes,Immutable,KnownLayout" \

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    "${BINDGEN_LINUX_X86_HEADERS}/include/linux/kvm.h" \

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    -- \

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    -isystem "${BINDGEN_LINUX_X86_HEADERS}/include" \

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    | replace_linux_int_types \

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    > kvm_sys/src/x86/bindings.rs

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bindgen_generate \

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    --flexarray-dst \

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    --raw-line "${KVM_EXTRAS}" \

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    --blocklist-item='__kernel.*' \

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    --blocklist-item='__BITS_PER_.*' \

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    --blocklist-item='__FD_SETSIZE' \

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    --blocklist-item='_?IOC.*' \

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    --with-derive-custom "kvm_regs=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_sregs=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_fpu=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_vcpu_events=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_vcpu_events__bindgen_ty_1=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_mp_state=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "user_fpsimd_state=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "user_pt_regs=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_reg_list=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_entry=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_entry__bindgen_ty_1=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_hv_sint=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_irqchip=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_msi=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_msi__bindgen_ty_1=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_s390_adapter=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_xen_evtchn=FromBytes,Immutable,KnownLayout" \

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    "${BINDGEN_LINUX_ARM64_HEADERS}/include/linux/kvm.h" \

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    -- \

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    -isystem "${BINDGEN_LINUX_ARM64_HEADERS}/include" \

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    | replace_linux_int_types \

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    > kvm_sys/src/aarch64/bindings.rs

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bindgen_generate \

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    --flexarray-dst \

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    --raw-line "${KVM_EXTRAS}" \

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    --blocklist-item='__kernel.*' \

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    --blocklist-item='__BITS_PER_.*' \

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    --blocklist-item='__FD_SETSIZE' \

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    --blocklist-item='_?IOC.*' \

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    --with-derive-custom "kvm_regs=FromBytes,Immutable,IntoBytes,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_entry=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_entry__bindgen_ty_1=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_hv_sint=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_irqchip=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_msi=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_msi__bindgen_ty_1=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_s390_adapter=FromBytes,Immutable,KnownLayout" \

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    --with-derive-custom "kvm_irq_routing_xen_evtchn=FromBytes,Immutable,KnownLayout" \

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    "${BINDGEN_LINUX_RISCV_HEADERS}/include/linux/kvm.h" \

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    -- \

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    -isystem "${BINDGEN_LINUX_RISCV_HEADERS}/include" \

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    | replace_linux_int_types \

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    > kvm_sys/src/riscv64/bindings.rs

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