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Merged
ramosian-glider merged 2 commits into from
Nov 24, 2025
Merged

Some description changes #6478

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f89a614
sys/linux: update kvm_guest_addrs with addresses from executor/kvm.h
ramosian-glider Nov 24, 2025
a795f0c
sys/linux: apply no_squash to certain KVM ioctls
ramosian-glider Nov 24, 2025
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4 changes: 2 additions & 2 deletions sys/linux/dev_kvm.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -35,7 +35,7 @@ ioctl$KVM_IRQ_LINE_STATUS(fd fd_kvmvm, cmd const[KVM_IRQ_LINE_STATUS], arg ptr[i
ioctl$KVM_SET_USER_MEMORY_REGION(fd fd_kvmvm, cmd const[KVM_SET_USER_MEMORY_REGION], arg ptr[in, kvm_userspace_memory_region])
ioctl$KVM_SET_USER_MEMORY_REGION2(fd fd_kvmvm, cmd const[KVM_SET_USER_MEMORY_REGION2], arg ptr[in, kvm_userspace_memory_region2])
ioctl$KVM_PPC_GET_PVINFO(fd fd_kvmvm, cmd const[KVM_PPC_GET_PVINFO], arg buffer[out])
ioctl$KVM_SET_GSI_ROUTING(fd fd_kvmvm, cmd const[KVM_SET_GSI_ROUTING], arg ptr[in, kvm_irq_routing])
ioctl$KVM_SET_GSI_ROUTING(fd fd_kvmvm, cmd const[KVM_SET_GSI_ROUTING], arg ptr[in, kvm_irq_routing]) (no_squash)
ioctl$KVM_ASSIGN_SET_MSIX_NR(fd fd_kvmvm, cmd const[KVM_ASSIGN_SET_MSIX_NR], arg ptr[in, kvm_assigned_msix_nr])
ioctl$KVM_ASSIGN_SET_MSIX_ENTRY(fd fd_kvmvm, cmd const[KVM_ASSIGN_SET_MSIX_ENTRY], arg ptr[in, kvm_assigned_msix_entry])
ioctl$KVM_IOEVENTFD(fd fd_kvmvm, cmd const[KVM_IOEVENTFD], arg ptr[in, kvm_ioeventfd])
Expand Down Expand Up @@ -63,7 +63,7 @@ ioctl$KVM_SET_REGS(fd fd_kvmcpu, cmd const[KVM_SET_REGS], arg ptr[in, kvm_regs])
ioctl$KVM_GET_SREGS(fd fd_kvmcpu, cmd const[KVM_GET_SREGS], arg ptr[out, kvm_sregs])
ioctl$KVM_SET_SREGS(fd fd_kvmcpu, cmd const[KVM_SET_SREGS], arg ptr[in, kvm_sregs])
ioctl$KVM_INTERRUPT(fd fd_kvmcpu, cmd const[KVM_INTERRUPT], arg ptr[in, int32])
ioctl$KVM_SET_SIGNAL_MASK(fd fd_kvmcpu, cmd const[KVM_SET_SIGNAL_MASK], arg ptr[in, kvm_signal_mask])
ioctl$KVM_SET_SIGNAL_MASK(fd fd_kvmcpu, cmd const[KVM_SET_SIGNAL_MASK], arg ptr[in, kvm_signal_mask]) (no_squash)
ioctl$KVM_GET_VCPU_EVENTS(fd fd_kvmcpu, cmd const[KVM_GET_VCPU_EVENTS], arg ptr[out, kvm_vcpu_events])
ioctl$KVM_SET_VCPU_EVENTS(fd fd_kvmcpu, cmd const[KVM_SET_VCPU_EVENTS], arg ptr[in, kvm_vcpu_events])
ioctl$KVM_GET_MP_STATE(fd fd_kvmcpu, cmd const[KVM_GET_MP_STATE], arg ptr[out, int32])
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6 changes: 3 additions & 3 deletions sys/linux/dev_kvm_amd64.txt
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Expand Up @@ -534,11 +534,11 @@ ioctl$KVM_TRANSLATE(fd fd_kvmcpu, cmd const[KVM_TRANSLATE], arg ptr[inout, kvm_t
# KVM_GET_MSRS can be both a system and a vcpu ioctl: https://docs.kernel.org/virt/kvm/api.html#kvm-get-msrs
ioctl$KVM_GET_MSRS_sys(fd fd_kvm, cmd const[KVM_GET_MSRS], arg ptr[inout, kvm_msrs])
ioctl$KVM_GET_MSRS_cpu(fd fd_kvmcpu, cmd const[KVM_GET_MSRS], arg ptr[inout, kvm_msrs])
ioctl$KVM_SET_MSRS(fd fd_kvmcpu, cmd const[KVM_SET_MSRS], arg ptr[in, kvm_msrs])
ioctl$KVM_SET_CPUID(fd fd_kvmcpu, cmd const[KVM_SET_CPUID], arg ptr[in, kvm_cpuid])
ioctl$KVM_SET_MSRS(fd fd_kvmcpu, cmd const[KVM_SET_MSRS], arg ptr[in, kvm_msrs]) (no_squash)
ioctl$KVM_SET_CPUID(fd fd_kvmcpu, cmd const[KVM_SET_CPUID], arg ptr[in, kvm_cpuid]) (no_squash)
# NEED: we should be able to read kvm_cpuid2 with KVM_GET_CPUID2, alter few bits and then call KVM_SET_CPUID2 with that object.
ioctl$KVM_GET_CPUID2(fd fd_kvmcpu, cmd const[KVM_GET_CPUID2], arg ptr[out, kvm_cpuid2])
ioctl$KVM_SET_CPUID2(fd fd_kvmcpu, cmd const[KVM_SET_CPUID2], arg ptr[in, kvm_cpuid2])
ioctl$KVM_SET_CPUID2(fd fd_kvmcpu, cmd const[KVM_SET_CPUID2], arg ptr[in, kvm_cpuid2]) (no_squash)
ioctl$KVM_GET_SUPPORTED_CPUID(fd fd_kvm, cmd const[KVM_GET_SUPPORTED_CPUID], arg ptr[inout, kvm_cpuid2])
# KVM_GET_SUPPORTED_HV_CPUID is both a system and a vcpu ioctl: https://docs.kernel.org/virt/kvm/api.html#kvm-get-supported-hv-cpuid
ioctl$KVM_GET_SUPPORTED_HV_CPUID_sys(fd fd_kvm, cmd const[KVM_GET_SUPPORTED_HV_CPUID], arg ptr[inout, kvm_cpuid2])
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4 changes: 3 additions & 1 deletion sys/linux/socket_vnet.txt
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Expand Up @@ -171,7 +171,9 @@ vhost_features = VHOST_LOG_ALL, VIRTIO_NOTIFY_ON_EMPTY, VIRTIO_RING_F_INDIRECT_D
vhost_vring_index = VSOCK_VQ_RX, VSOCK_VQ_TX, VSOCK_VQ_EVENT, VSOCK_VQ_MAX
vhost_iotlb_type = VHOST_IOTLB_MISS, VHOST_IOTLB_UPDATE, VHOST_IOTLB_INVALIDATE, VHOST_IOTLB_ACCESS_FAIL
vhost_iotlb_perm = VHOST_ACCESS_RO, VHOST_ACCESS_WO, VHOST_ACCESS_RW
kvm_guest_addrs = 0, 1, 2, 4, 0x1000, 0x2000, 0x3000, 0x4000, 0x5000, 0x6000, 0xd000, 0xf000, 0x10000, 0x100000, 0x8000000, 0x8080000, 0x80a0000, 0xdddd0000, 0xdddd1000, 0xeeee0000, 0xeeee8000, 0xeeef0000, 0xffff1000

# This list contains guest addresses from executor/kvm.h, plus some constants.
kvm_guest_addrs = 0, 1, 2, 4, 0x1000, 0x2000, 0x3000, 0x4000, 0x5000, 0x6000, 0x7000, 0x9000, 0xa000, 0xb000, 0xc000, 0xd000, 0xe000, 0xf000, 0x10000, 0x25000, 0x26000, 0x30000, 0x40000, 0x41000, 0x50000, 0x54000, 0x58000, 0x60000, 0x70000, 0x100000, 0x200000, 0x8000000, 0x8080000, 0x80a0000, 0xdddd0000, 0xdddd1000, 0xeeee0000, 0xeeee8000, 0xeeef0000, 0xfec00000, 0xffff1000, 0xffffffff

define VHOST_LOG_ALL 1 << VHOST_F_LOG_ALL
define VIRTIO_NOTIFY_ON_EMPTY 1 << VIRTIO_F_NOTIFY_ON_EMPTY
Expand Down