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Genode Packages collection https://git.sr.ht/~ehmry/genodepkgs/
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genodepkgs/nixos-modules/store-wrapper.dhall

199 lines
8.6 KiB

let Genode = env:DHALL_GENODE
let Prelude = Genode.Prelude
let XML = Prelude.XML
let Init = Genode.Init
let Child = Init.Child
let TextMapType = Prelude.Map.Type Text
let Manifest/Type = TextMapType (TextMapType Text)
in λ(subinit : Init.Type) →
λ(storeName : Text) →
λ(storeSize : Natural) →
λ(storeRomPolicies : Prelude.Map.Type Text Text) →
λ(bootManifest : Manifest/Type) →
Genode.Boot::{
, config = Init::{
, children =
let child = Prelude.Map.keyValue Child.Type
in [ child
"timer"
( Child.flat
Child.Attributes::{
, binary = "timer_drv"
, provides = [ "Timer" ]
}
)
, child
"rtc"
( Child.flat
Child.Attributes::{
, binary = "rtc_drv"
, provides = [ "Rtc" ]
, routes = [ Init.ServiceRoute.parent "IO_PORT" ]
}
)
, child
"store_fs"
( Child.flat
Child.Attributes::{
, binary = "vfs"
, config = Init.Config::{
, content =
[ XML.element
{ name = "vfs"
, attributes = XML.emptyAttributes
, content =
[ XML.leaf
{ name = "tar"
, attributes = toMap { name = storeName }
}
]
}
]
, policies =
[ Init.Config.Policy::{
, service = "File_system"
, label = Init.LabelSelector.suffix "nix-store"
, attributes = toMap { root = "/nix/store" }
}
, Init.Config.Policy::{
, service = "File_system"
, label = Init.LabelSelector.prefix "store_rom"
, attributes = toMap { root = "/" }
}
]
}
, provides = [ "File_system" ]
}
)
, child
"store_rom"
( Child.flat
Child.Attributes::{
, binary = "cached_fs_rom"
, provides = [ "ROM" ]
, resources = Init.Resources::{
, ram = storeSize + Genode.units.MiB 1
}
, config = Init.Config::{
, policies =
[ Init.Config.Policy::{
, service = "ROM"
, label =
Init.LabelSelector.prefix
"nixos -> /nix/store"
}
]
# ( let Entry = Prelude.Map.Entry Text Text
in Prelude.List.concatMap
Entry
Init.Config.Policy.Type
( λ(e : Entry) →
[ Init.Config.Policy::{
, service = "ROM"
, label =
Init.LabelSelector.prefix
"nixos -> ${e.mapKey}"
, attributes = toMap
{ directory =
"${e.mapValue}/bin"
}
}
, Init.Config.Policy::{
, service = "ROM"
, label =
Init.LabelSelector.Type.Partial
{ prefix = Some
"nixos -> ${e.mapKey}"
, suffix = Some ".lib.so"
}
, attributes = toMap
{ directory =
"${e.mapValue}/lib"
}
}
]
)
storeRomPolicies
)
}
}
)
, child
"nixos"
( Init.toChild
subinit
Init.Attributes::{
, exitPropagate = True
, resources = Init.Resources::{
, ram = Genode.units.MiB 4
}
, routes =
let parentROMs =
Prelude.List.concatMap
Text
Init.ServiceRoute.Type
( λ(suffix : Text) →
Prelude.List.map
Text
Init.ServiceRoute.Type
( λ(prefix : Text) →
{ service =
{ name = "ROM"
, label =
Init.LabelSelector.Type.Partial
{ prefix = Some prefix
, suffix = Some suffix
}
}
, route =
Init.Route.parent
(Some suffix)
}
)
( Prelude.Map.keys
Text
Init.Child.Type
subinit.children
)
)
in parentROMs
[ "ld.lib.so"
, "vfs.lib.so"
, "init"
, "platform_info"
, "core_log"
, "kernel_log"
]
# [ Init.ServiceRoute.parent "IO_MEM"
, Init.ServiceRoute.parent "IO_PORT"
, Init.ServiceRoute.parent "IRQ"
, Init.ServiceRoute.parent "VM"
, Init.ServiceRoute.child "Timer" "timer"
, Init.ServiceRoute.child "Rtc" "rtc"
]
}
)
]
}
, rom =
Genode.BootModules.toRomPaths
( Prelude.List.concat
(Prelude.Map.Entry Text Text)
( Prelude.Map.values
Text
(Prelude.Map.Type Text Text)
bootManifest
)
)
}