cade24a7ce
Using the new ability to modify user rflags, add a syscall for a process to request its IOPL be changed.
36 lines
1.2 KiB
Modula-2
36 lines
1.2 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 : kobject {
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uid fa72506a2cf71a30
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# Get a log line from the kernel log
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method get_log {
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param buffer buffer [out] # 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 {
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param dest object 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 {
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param area object 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 {
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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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