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cd037aca15
The main point of this change is to allow "global" capabilities defined on the base object type. The example here is the clone capability on all objects, which governs the ability to clone a handle. Related changes in this commit: - Renamed `kobject` to `object` as far as the syscall interface is concerned. `kobject` is the cname, but j6_cap_kobject_clone feels clunky. - The above change made me realize that the "object <type>" syntax for specifying object references was also clunky, so now it's "ref <type>" - Having to add `.object` on everywhere to access objects in interface.exposes or object.super was cumbersome, so those properties now return object types directly, instead of ObjectRef. - syscall_verify.cpp.cog now generates code to check capabilities on handles if they're specified in the definition, even when not passing an object to the implementation function.
43 lines
1.4 KiB
Modula-2
43 lines
1.4 KiB
Modula-2
import "objects/endpoint.def"
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import "objects/vma.def"
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# The system object represents a handle to kernel functionality
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# needed by drivers and other priviledged services
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object system : object {
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uid fa72506a2cf71a30
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capabilities [
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get_log
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bind_irq
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map_phys
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change_iopl
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]
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# Get a log line from the kernel log
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method get_log [cap:get_log] {
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param buffer buffer [out optional] # Buffer for the log message data structure
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}
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# Ask the kernel to send this process messages whenever
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# the given IRQ fires
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method bind_irq [cap:bind_irq] {
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param dest ref endpoint # Endpoint that will receive messages
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param irq uint # IRQ number to bind
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}
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# Create a VMA and map an area of physical memory into it,
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# also mapping that VMA into the current process
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method map_phys [cap:map_phys] {
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param area ref vma [out] # Receives a handle to the VMA created
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param phys address # The physical address of the area
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param size size # Size of the area, in pages
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param flags uint32 # Flags to apply to the created VMA
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}
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# Request the kernel change the IOPL for this process. The only values
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# that make sense are 0 and 3.
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method request_iopl [cap:change_iopl] {
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param iopl uint # The IOPL to set for this process
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}
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}
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