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fusee_cpp: implement all required key derivation

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Michael Scire 2021-08-28 01:15:15 -07:00 • committed by SciresM
parent 51cf28339b
commit 6c5f2804ab
5 changed files with 374 additions and 1 deletions
fusee_cpp/program/source
fusee_setup_horizon.cpp

30
fusee_cpp/program/source/fusee_setup_horizon.cpp
View file

@ -14,6 +14,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <exosphere.hpp>
#include "fusee_key_derivation.hpp"
#include "fusee_secondary_archive.hpp"
#include "fusee_setup_horizon.hpp"
#include "fusee_fatal.hpp"
@ -22,6 +23,24 @@ namespace ams::nxboot {
namespace {
constexpr inline const uintptr_t CLKRST = secmon::MemoryRegionPhysicalDeviceClkRst.GetAddress();
constexpr inline const uintptr_t MC = secmon::MemoryRegionPhysicalDeviceMemoryController.GetAddress();
void DisableArc() {
/* Enable ARC_CLK_OVR_ON. */
reg::ReadWrite(CLKRST + CLK_RST_CONTROLLER_LVL2_CLK_GATE_OVRD, CLK_RST_REG_BITS_ENUM(LVL2_CLK_GATE_OVRD_ARC_CLK_OVR_ON, OFF));
/* Enable the ARC. */
reg::ReadWrite(MC + MC_IRAM_REG_CTRL, MC_REG_BITS_ENUM(IRAM_REG_CTRL_IRAM_CFG_WRITE_ACCESS, DISABLED));
/* Set IRAM BOM/TOP to open up access to all mmio. */
reg::Write(MC + MC_IRAM_BOM, 0xFFFFF000);
reg::Write(MC + MC_IRAM_TOM, 0x00000000);
/* Read to ensure our configuration takes. */
reg::Read(MC + MC_IRAM_REG_CTRL);
}
void DeriveAllKeys(const fuse::SocType soc_type) {
/* If on erista, run the TSEC keygen firmware. */
if (soc_type == fuse::SocType_Erista) {
@ -34,7 +53,12 @@ namespace ams::nxboot {
clkrst::SetBpmpClockRate(clkrst::BpmpClockRate_576MHz);
}
ShowFatalError("DeriveAllKeys not fully implemented\n");
/* Derive master/device keys. */
if (soc_type == fuse::SocType_Erista) {
DeriveKeysErista();
} else /* if (soc_type == fuse::SocType_Mariko) */ {
DeriveKeysMariko();
}
}
}
@ -47,6 +71,10 @@ namespace ams::nxboot {
/* Derive all keys. */
DeriveAllKeys(soc_type);
/* Disable the ARC redirect. */
/* NOTE: Devices can no longer access IRAM from this point onwards. */
DisableArc();
AMS_UNUSED(hw_type);
ShowFatalError("SetupAndStartHorizon not fully implemented\n");
}