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exo/mariko fatal: halt other cores when beginning fatal program

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Michael Scire 2020-11-19 20:32:21 -08:00 • committed by SciresM
parent 7f1a7cfd2d
commit 45830472c1
10 changed files with 211 additions and 131 deletions
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34
exosphere/program/source/secmon_user_power_management.cpp
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@ -14,8 +14,9 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <exosphere.hpp>
#include "secmon_map.hpp"
#include "secmon_cpu_context.hpp"
#include "secmon_page_mapper.hpp"
#include "secmon_mariko_fatal_error.hpp"
#include "secmon_user_power_management.hpp"
#include "rebootstub_bin.h"
@ -90,34 +91,11 @@ namespace ams::secmon {
/* On Erista, we reboot to fatal error by jumping to fusee primary's handler. */
return PerformUserRebootToPayload();
} else /* if (fuse::GetSocType() == fuse::SocType_Mariko) */ {
/* TODO: Send a SGI FIQ to the other CPUs, so that user code stops executing. */
/* Call the fatal error handler. */
HandleMarikoFatalErrorInterrupt();
/* TODO: On cores other than 3, halt/wfi. */
/* Copy the fatal error context to mariko tzram. */
{
/* Map the iram page. */
constexpr uintptr_t FatalErrorPhysicalAddress = MemoryRegionPhysicalIramFatalErrorContext.GetAddress();
AtmosphereIramPageMapper mapper(FatalErrorPhysicalAddress);
if (mapper.Map()) {
/* Copy the fatal error context. */
void *dst = MemoryRegionVirtualTzramMarikoProgramFatalErrorContext.GetPointer<void>();
const void *src = mapper.GetPointerTo(FatalErrorPhysicalAddress, sizeof(ams::impl::FatalErrorContext));
std::memcpy(dst, src, sizeof(ams::impl::FatalErrorContext));
}
}
/* Map Dram for the mariko program. */
MapDramForMarikoProgram();
AMS_SECMON_LOG("%s\n", "Jumping to Mariko Fatal.");
AMS_LOG_FLUSH();
/* Jump to the mariko fatal program. */
reinterpret_cast<void (*)()>(secmon::MemoryRegionVirtualTzramMarikoProgram.GetAddress())();
/* The mariko fatal program never returns. */
__builtin_unreachable();
/* We should never get to this point. */
AMS_ABORT("Returned from Mariko Fatal handler?\n");
}
}