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[denali] Get all caps from the init port.

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This allows us to remove the bootstrap capabilities for good woo hoo!
This commit is contained in:
Drew Galbraith 2023-06-17 01:30:47 -07:00
parent 6e86ce67f0
commit 7dcbbd671e
11 changed files with 62 additions and 28 deletions
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27
lib/mammoth/src/process.cpp
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@ -7,6 +7,7 @@
#include "mammoth/channel.h"
#include "mammoth/debug.h"
#include "mammoth/init.h"
#include "mammoth/port.h"
#define MAM_PROC_DEBUG 0
@ -99,26 +100,40 @@ uint64_t SpawnProcessFromElfRegion(uint64_t program, Channel& local) {
Channel foreign;
check(CreateChannels(local, foreign));
uint64_t proc_cap;
uint64_t as_cap;
uint64_t foreign_port_id;
uint64_t port_cap;
#if MAM_PROC_DEBUG
dbgln("Port Create");
#endif
check(ZPortCreate(&port_cap));
uint64_t port_cap_donate;
check(ZCapDuplicate(port_cap, &port_cap_donate));
#if MAM_PROC_DEBUG
dbgln("Spawn");
#endif
uint64_t proc_cap;
uint64_t as_cap;
uint64_t foreign_chan_id;
check(ZProcessSpawn(gSelfProcCap, foreign.release_cap(), &proc_cap, &as_cap,
&foreign_chan_id));
check(ZProcessSpawn(gSelfProcCap, port_cap_donate, &proc_cap, &as_cap,
&foreign_port_id));
uint64_t entry_point = LoadElfProgram(program, as_cap);
#if MAM_PROC_DEBUG
dbgln("Thread Create");
#endif
uint64_t thread_cap;
check(ZThreadCreate(proc_cap, &thread_cap));
Port p(port_cap);
check(p.WriteMessage<uint64_t>(Z_INIT_SELF_PROC, proc_cap));
check(p.WriteMessage<uint64_t>(Z_INIT_SELF_VMAS, as_cap));
check(p.WriteMessage<uint64_t>(Z_INIT_CHANNEL, foreign.release_cap()));
#if MAM_PROC_DEBUG
dbgln("Thread start");
#endif
check(ZThreadStart(thread_cap, entry_point, foreign_chan_id, 0));
check(ZThreadStart(thread_cap, entry_point, foreign_port_id, 0));
return Z_OK;
}