133 lines
3.7 KiB
C++
133 lines
3.7 KiB
C++
#include "include/zcall.h"
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#include <stdint.h>
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#include "usr/zcall_internal.h"
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z_err_t SysCall2(uint64_t number, const void* first, const void* second) {
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z_err_t return_code;
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asm("syscall"
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: "=a"(return_code)
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: "D"(number), "S"(first), "d"(second)
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: "rcx", "r11");
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return return_code;
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}
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z_err_t SysCall0(uint64_t number) { return SysCall2(number, 0, 0); }
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z_err_t SysCall1(uint64_t number, const void* first) {
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return SysCall2(number, first, 0);
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}
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void ZProcessExit(uint64_t code) {
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SysCall1(Z_PROCESS_EXIT, reinterpret_cast<void*>(code));
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}
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z_err_t ZProcessSpawn(uint64_t proc_cap, uint64_t bootstrap_cap,
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uint64_t* new_proc_cap, uint64_t* new_vmas_cap,
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uint64_t* new_bootstrap_cap) {
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ZProcessSpawnReq req{
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.proc_cap = proc_cap,
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.bootstrap_cap = bootstrap_cap,
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};
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ZProcessSpawnResp resp;
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z_err_t ret = SysCall2(Z_PROCESS_SPAWN, &req, &resp);
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*new_proc_cap = resp.proc_cap;
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*new_vmas_cap = resp.vmas_cap;
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*new_bootstrap_cap = resp.bootstrap_cap;
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return ret;
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}
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z_err_t ZThreadCreate(uint64_t proc_cap, uint64_t* thread_cap) {
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ZThreadCreateReq req{
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.proc_cap = proc_cap,
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};
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ZThreadCreateResp resp;
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z_err_t ret = SysCall2(Z_THREAD_CREATE, &req, &resp);
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*thread_cap = resp.thread_cap;
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return ret;
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}
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z_err_t ZThreadStart(uint64_t thread_cap, uint64_t entry, uint64_t arg1,
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uint64_t arg2) {
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ZThreadStartReq req{
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.thread_cap = thread_cap,
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.entry = entry,
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.arg1 = arg1,
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.arg2 = arg2,
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};
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return SysCall1(Z_THREAD_START, &req);
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}
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void ZThreadExit() { SysCall0(Z_THREAD_EXIT); }
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z_err_t ZAddressSpaceMap(uint64_t vmas_cap, uint64_t vmas_offset,
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uint64_t vmmo_cap, uint64_t* vaddr) {
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ZAddressSpaceMapReq req{
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.vmas_cap = vmas_cap,
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.vmas_offset = vmas_offset,
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.vmmo_cap = vmmo_cap,
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};
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ZAddressSpaceMapResp resp;
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z_err_t ret = SysCall2(Z_ADDRESS_SPACE_MAP, &req, &resp);
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*vaddr = resp.vaddr;
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return ret;
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}
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z_err_t ZMemoryObjectCreate(uint64_t size, uint64_t* vmmo_cap) {
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ZMemoryObjectCreateReq req{
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.size = size,
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};
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ZMemoryObjectCreateResp resp;
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z_err_t ret = SysCall2(Z_MEMORY_OBJECT_CREATE, &req, &resp);
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*vmmo_cap = resp.vmmo_cap;
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return ret;
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}
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z_err_t ZChannelCreate(uint64_t* channel1, uint64_t* channel2) {
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ZChannelCreateResp resp;
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z_err_t ret = SysCall2(Z_CHANNEL_CREATE, 0, &resp);
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*channel1 = resp.chan_cap1;
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*channel2 = resp.chan_cap2;
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return ret;
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}
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z_err_t ZChannelSend(uint64_t chan_cap, uint64_t type, uint64_t num_bytes,
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const uint8_t* bytes, uint64_t num_caps,
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const uint64_t* caps) {
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ZChannelSendReq req{
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.chan_cap = chan_cap,
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.message =
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{
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.type = type,
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.num_bytes = num_bytes,
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.bytes = const_cast<uint8_t*>(bytes),
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.num_caps = num_caps,
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.caps = const_cast<uint64_t*>(caps),
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},
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};
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return SysCall1(Z_CHANNEL_SEND, &req);
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}
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z_err_t ZChannelRecv(uint64_t chan_cap, uint64_t num_bytes, uint8_t* bytes,
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uint64_t num_caps, uint64_t* caps, uint64_t* type,
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uint64_t* actual_bytes, uint64_t* actual_caps) {
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ZChannelRecvReq req{
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.chan_cap = chan_cap,
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.message =
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{
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.type = 0,
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.num_bytes = num_bytes,
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.bytes = bytes,
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.num_caps = num_caps,
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.caps = caps,
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},
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};
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z_err_t ret = SysCall1(Z_CHANNEL_RECV, &req);
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*type = req.message.type;
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*actual_bytes = req.message.num_bytes;
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*actual_caps = req.message.num_caps;
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return ret;
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}
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z_err_t ZDebug(const char* message) { return SysCall1(Z_DEBUG_PRINT, message); }
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