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exo: implement remaining SE changes for mariko support

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This commit is contained in:
Michael Scire 2020-06-28 21:11:29 -07:00
parent 5cb9fa510e
commit bf92daf055
9 changed files with 167 additions and 67 deletions
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38
libraries/libexosphere/source/se/se_management.cpp
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@ -24,6 +24,18 @@ namespace ams::se {
constinit uintptr_t g_register2_address = secmon::MemoryRegionPhysicalDeviceSecurityEngine2.GetAddress();
constinit DoneHandler g_done_handler = nullptr;
void SetSecure(volatile SecurityEngineRegisters *SE, bool secure) {
/* Set the security software setting. */
if (secure) {
reg::ReadWrite(SE->SE_SE_SECURITY, SE_REG_BITS_ENUM(SECURITY_SOFT_SETTING, SECURE));
} else {
reg::ReadWrite(SE->SE_SE_SECURITY, SE_REG_BITS_ENUM(SECURITY_SOFT_SETTING, NONSECURE));
}
/* Read the status register to force an update. */
reg::Read(SE->SE_SE_SECURITY);
}
}
volatile SecurityEngineRegisters *GetRegisters() {
@ -45,17 +57,13 @@ namespace ams::se {
}
void SetSecure(bool secure) {
auto *SE = GetRegisters();
/* Set security for SE1. */
SetSecure(GetRegisters(), secure);
/* Set the security software setting. */
if (secure) {
reg::ReadWrite(SE->SE_SE_SECURITY, SE_REG_BITS_ENUM(SECURITY_SOFT_SETTING, SECURE));
} else {
reg::ReadWrite(SE->SE_SE_SECURITY, SE_REG_BITS_ENUM(SECURITY_SOFT_SETTING, NONSECURE));
/* If SE2 is present, set security for SE2. */
if (fuse::GetSocType() == fuse::SocType_Mariko) {
SetSecure(GetRegisters2(), secure);
}
/* Read the status register to force an update. */
reg::Read(SE->SE_SE_SECURITY);
}
void SetTzramSecure() {
@ -72,6 +80,18 @@ namespace ams::se {
reg::ReadWrite(SE->SE_SE_SECURITY, SE_REG_BITS_ENUM(SECURITY_PERKEY_SETTING, SECURE));
}
void SetContextSaveSecure() {
/* Context save lock to trustzone secure is only available on mariko. */
if (fuse::GetSocType() == fuse::SocType_Mariko) {
auto *SE = GetRegisters();
auto *SE2 = GetRegisters2();
reg::ReadWrite(SE->SE_SE_SECURITY, SE_REG_BITS_ENUM(SECURITY_CTX_SAVE_TZ_LOCK, SECURE));
reg::ReadWrite(SE2->SE_SE_SECURITY, SE_REG_BITS_ENUM(SECURITY_CTX_SAVE_TZ_LOCK, SECURE));
}
}
void Lockout() {
auto *SE = GetRegisters();