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hub / github.com/Bareflank/hypervisor / fail_entry

Function fail_entry

kernel/integration/bf_vs_op_set_active.cpp:345–378  ·  view source on GitHub ↗

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343 /// input is undefined.
344 ///
345 extern "C" void
346 fail_entry(bsl::safe_u64::value_type const errc, bsl::safe_u64::value_type const addr) noexcept
347 {
348 /// NOTE:
349 /// - Call into the fast fail handler. This entry point serves as a
350 /// trampoline between C and C++. Specifically, the microkernel
351 /// cannot call a member function directly, and can only call
352 /// a C style function.
353 ///
354
355 auto const ret{dispatch_fail( // --
356 g_mut_gs, // --
357 g_mut_tls, // --
358 g_mut_sys, // --
359 g_mut_intrinsic, // --
360 g_mut_vp_pool, // --
361 g_mut_vs_pool, // --
362 bsl::to_u64(errc), // --
363 bsl::to_u64(addr))};
364
365 if (bsl::unlikely(!ret)) {
366 bsl::print<bsl::V>() << bsl::here();
367 return bf_control_op_exit();
368 }
369
370 /// NOTE:
371 /// - This code should never be reached. The fast fail handler should
372 /// always call one of the "run" ABIs to return back to the
373 /// microkernel when a fast fail is finished. If this is called, it
374 /// is because the fast fail handler returned with an error.
375 ///
376
377 return bf_control_op_exit();
378 }
379
380 /// <!-- description -->
381 /// @brief Implements the VMExit entry function. This is registered

Callers

nothing calls this directly

Calls 2

dispatch_failFunction · 0.50
bf_control_op_exitFunction · 0.50

Tested by

no test coverage detected