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* bsps/x86_64: Add paging support with 1GiB super pagesAmaan Cheval2018-08-134-0/+247
| | | | Updates #2898.
* bsps/x86_64: Reduce default RamSize to 1GiBAmaan Cheval2018-08-131-3/+3
| | | | | | | Simulators may not always be able to allocate 4GiB easily, and using an artificially lower RAM may cause a broken heap. Updates #2898.
* bsps/x86_64: Reorganize header files and compile-optionsAmaan Cheval2018-08-131-0/+3
| | | | Updates #2898.
* x86_64/console: Add NS16550 polled console driverAmaan Cheval2018-07-111-93/+30
| | | | | | This addition allows us to successfully run the sample hello.exe test. Updates #2898.
* bsp/x86_64: Minimal bootable BSPAmaan Cheval2018-07-1110-0/+612
Current state: - Basic context initialization and switching code. - Stubbed console (empty functions). - Mostly functional linker script (may need tweaks if we ever want to move away from the large code model (see: CPU_CFLAGS). - Fully functional boot, by using FreeBSD's bootloader to load RTEMS's ELF for UEFI-awareness. In short, the current state with this commit lets us boot, go through the system initialization functions, and then call user application's Init task too. Updates #2898.