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[zion] Add a direct port write for the kernel

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Drew Galbraith 2023-06-17 00:07:58 -07:00
parent 0a909eae0e
commit 2ea1f90690
3 changed files with 21 additions and 16 deletions
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18
zion/loader/init_loader.cpp
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@ -130,25 +130,11 @@ void LoadInitProgram() {
prog2_vmmo->CopyBytesToObject(reinterpret_cast<uint64_t>(prog2.address),
prog2.size);
// TODO: Probably add a way for the kernel to write caps directly rather than
// by installing them first.
uint64_t vmmo_cap =
gScheduler->CurrentProcess().AddNewCapability(prog2_vmmo, ZC_WRITE);
auto port = MakeRefCounted<Port>();
uint64_t port_cap = proc->AddNewCapability(port, ZC_READ | ZC_WRITE);
uint64_t vmmo_id = Z_BOOT_DENALI_VMMO;
ZMessage vmmo_msg{
.type = 0,
.num_bytes = 8,
.bytes = reinterpret_cast<uint8_t*>(&vmmo_id),
.num_caps = 1,
.caps = &vmmo_cap,
};
if (port->Write(vmmo_msg) != Z_OK) {
panic("Failed to write cap");
}
port->WriteKernel(Z_BOOT_DENALI_VMMO,
MakeRefCounted<Capability>(prog2_vmmo, ZC_READ | ZC_WRITE));
proc->CreateThread()->Start(entry, port_cap, 0);
}