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[kernel] Move bind_irq syscall to new system object

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In order to implement capabilities on system resources like IRQs so that
they may be restricted to drivers only, add a new 'system' kobject type,
and move the bind_irq functionality from endpoint to system.

Also fix some stack bugs passing the initial handles to a program.
This commit is contained in:
Justin C. Miller
2020-10-18 20:45:06 -07:00
parent 2ad90dcb5c
commit 8bb9e22218
14 changed files with 80 additions and 28 deletions
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12
src/kernel/scheduler.cpp
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@@ -13,6 +13,7 @@
#include "msr.h"
#include "objects/channel.h"
#include "objects/process.h"
#include "objects/system.h"
#include "objects/vm_area.h"
#include "scheduler.h"
@@ -26,7 +27,7 @@ const uint64_t rflags_int = 0x202;
extern "C" {
void preloaded_process_init();
void load_process_image(uintptr_t phys, uintptr_t virt, size_t bytes, TCB *tcb);
uintptr_t load_process_image(uintptr_t phys, uintptr_t virt, size_t bytes, TCB *tcb);
};
extern uint64_t idle_stack_end;
@@ -59,7 +60,7 @@ scheduler::scheduler(lapic *apic) :
bsp_cpu_data.t = idle;
}
void
uintptr_t
load_process_image(uintptr_t phys, uintptr_t virt, size_t bytes, TCB *tcb)
{
using memory::page_align_down;
@@ -81,10 +82,13 @@ load_process_image(uintptr_t phys, uintptr_t virt, size_t bytes, TCB *tcb)
tcb->rsp3 -= sizeof(j6_process_init);
j6_process_init *init = reinterpret_cast<j6_process_init*>(tcb->rsp3);
extern channel *std_out;
init->output = proc.add_handle(std_out);
init->process = proc.add_handle(&proc);
init->handles[0] = proc.add_handle(system::get());
init->handles[1] = j6_handle_invalid;
init->handles[2] = j6_handle_invalid;
thread::current().clear_state(thread::state::loading);
return tcb->rsp3;
}
thread *