mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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75 lines
No EOL
2.4 KiB
C++
75 lines
No EOL
2.4 KiB
C++
/*
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* Copyright (c) 2018-2019 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <switch.h>
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#include <stratosphere.hpp>
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#include <strings.h>
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#include "boot_functions.hpp"
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#include "boot_reboot_manager.hpp"
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#include "fusee-primary_bin.h"
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static u8 g_work_page[0x1000] __attribute__ ((aligned (0x1000)));
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static void ClearIram() {
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/* Make page FFs. */
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memset(g_work_page, 0xFF, sizeof(g_work_page));
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/* Overwrite all of IRAM with FFs. */
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for (size_t ofs = 0; ofs < IRAM_SIZE; ofs += sizeof(g_work_page)) {
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CopyToIram(IRAM_BASE + ofs, g_work_page, sizeof(g_work_page));
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}
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}
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static void DoRebootToPayload() {
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/* Ensure clean IRAM state. */
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ClearIram();
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/* Copy in payload. */
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for (size_t ofs = 0; ofs < fusee_primary_bin_size; ofs += 0x1000) {
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std::memcpy(g_work_page, &fusee_primary_bin[ofs], std::min(static_cast<size_t>(fusee_primary_bin_size - ofs), size_t(0x1000)));
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CopyToIram(IRAM_PAYLOAD_BASE + ofs, g_work_page, 0x1000);
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}
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RebootToIramPayload();
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}
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Result BootRebootManager::PerformReboot() {
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DoRebootToPayload();
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return ResultSuccess;
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}
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void BootRebootManager::RebootForFatalError(AtmosphereFatalErrorContext *ctx) {
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/* Ensure clean IRAM state. */
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ClearIram();
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/* Copy in payload. */
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for (size_t ofs = 0; ofs < fusee_primary_bin_size; ofs += 0x1000) {
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std::memcpy(g_work_page, &fusee_primary_bin[ofs], std::min(static_cast<size_t>(fusee_primary_bin_size - ofs), size_t(0x1000)));
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CopyToIram(IRAM_PAYLOAD_BASE + ofs, g_work_page, 0x1000);
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}
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std::memset(g_work_page, 0xCC, sizeof(g_work_page));
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std::memcpy(g_work_page, ctx, sizeof(*ctx));
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CopyToIram(IRAM_PAYLOAD_BASE + IRAM_PAYLOAD_MAX_SIZE, g_work_page, sizeof(g_work_page));
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RebootToIramPayload();
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}
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void Boot::RebootSystem() {
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if (R_FAILED(BootRebootManager::PerformReboot())) {
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std::abort();
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}
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} |