| // Copyright 2021 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_VIRTUALIZATION_TESTS_LIB_GUEST_CONSTANTS_H_ |
| #define SRC_VIRTUALIZATION_TESTS_LIB_GUEST_CONSTANTS_H_ |
| |
| #include <string_view> |
| |
| // Linux kernel command line params for additional serial debug logs during boot. |
| constexpr std::string_view kLinuxKernelSerialDebugCmdline[] = { |
| // Add early UART output from kernel. |
| #if __aarch64__ |
| "earlycon=pl011,0x808300000", |
| #elif __x86_64__ |
| "earlycon=uart,io,0x3f8", |
| #else |
| #error Unknown architecture. |
| #endif |
| |
| // Tell Linux to keep the console in polling mode instead of trying to switch |
| // to a real UART driver. The latter assumes a working transmit interrupt, |
| // but we don't implement one yet. |
| // |
| // TODO(https://fxbug.dev/42125493): Ideally, Machina's UART would support IRQs allowing |
| // us to just use the full UART driver. |
| "keep_bootcon", |
| |
| // Tell Linux to not try and use the UART as a console, but use the virtual |
| // console tty0 instead. |
| // |
| // TODO(https://fxbug.dev/42125493): If Machina's UART had full IRQ support, using |
| // ttyS0 as a console would be fine. |
| "console=tty0", |
| }; |
| |
| #endif // SRC_VIRTUALIZATION_TESTS_LIB_GUEST_CONSTANTS_H_ |