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Integrate 5.x SMC API changes, add 4.x specific setup, implement target firmware selection

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This commit is contained in:
Michael Scire 2018-03-25 15:05:08 -06:00
parent c6ee1bffb7
commit c2eed3caf6
34 changed files with 734 additions and 80 deletions
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42
exosphere/src/smc_api.c
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@ -19,6 +19,7 @@
#include "userpage.h"
#include "titlekey.h"
#include "lp0.h"
#include "exocfg.h"
#define SMC_USER_HANDLERS 0x13
#define SMC_PRIV_HANDLERS 0x9
@ -43,6 +44,10 @@ uint32_t smc_unwrap_rsa_oaep_wrapped_titlekey(smc_args_t *args);
uint32_t smc_load_titlekey(smc_args_t *args);
uint32_t smc_unwrap_aes_wrapped_titlekey(smc_args_t *args);
/* 5.x SMC prototypes. */
uint32_t smc_encrypt_rsa_key_for_import(smc_args_t *args);
uint32_t smc_decrypt_or_import_rsa_key(smc_args_t *args);
/* Privileged SMC prototypes */
uint32_t smc_cpu_suspend(smc_args_t *args);
uint32_t smc_cpu_off(smc_args_t *args);
@ -114,6 +119,32 @@ static atomic_flag g_is_priv_smc_in_progress = ATOMIC_FLAG_INIT;
/* Global for smc_configure_carveout. */
static bool g_configured_carveouts[2] = {false, false};
void set_version_specific_smcs(void) {
switch (exosphere_get_target_firmware()) {
case EXOSPHERE_TARGET_FIRMWARE_100:
/* 1.0.0 doesn't have ConfigureCarveout or ReadWriteRegister. */
g_smc_priv_table[7].handler = NULL;
g_smc_priv_table[8].handler = NULL;
/* 1.0.0 doesn't have UnwrapAesWrappedTitlekey. */
g_smc_user_table[0x12].handler = NULL;
break;
case EXOSPHERE_TARGET_FIRMWARE_200:
case EXOSPHERE_TARGET_FIRMWARE_300:
case EXOSPHERE_TARGET_FIRMWARE_400:
/* Do nothing. */
break;
case EXOSPHERE_TARGET_FIRMWARE_500:
/* No more LoadSecureExpModKey. */
g_smc_user_table[0xE].handler = NULL;
g_smc_user_table[0xC].id = 0xC300D60C;
g_smc_user_table[0xC].handler = smc_encrypt_rsa_key_for_import;
g_smc_user_table[0xD].handler = smc_decrypt_or_import_rsa_key;
break;
default:
panic_predefined(0xF);
}
}
uintptr_t get_smc_core012_stack_address(void) {
return TZRAM_GET_SEGMENT_ADDRESS(TZRAM_SEGMENT_ID_CORE012_STACK) + 0x1000;
@ -427,6 +458,15 @@ uint32_t smc_unwrap_aes_wrapped_titlekey(smc_args_t *args) {
return smc_wrapper_sync(args, user_unwrap_aes_wrapped_titlekey);
}
uint32_t smc_encrypt_rsa_key_for_import(smc_args_t *args) {
return smc_wrapper_sync(args, user_encrypt_rsa_key_for_import);
}
uint32_t smc_decrypt_or_import_rsa_key(smc_args_t *args) {
return smc_wrapper_sync(args, user_decrypt_or_import_rsa_key);
}
uint32_t smc_cpu_on(smc_args_t *args) {
return cpu_on((uint32_t)args->X[1], args->X[2], args->X[3]);
}
@ -496,7 +536,7 @@ uint32_t smc_read_write_register(smc_args_t *args) {
} else {
return 2;
}
} else if (mkey_get_revision() >= MASTERKEY_REVISION_400_CURRENT && MMIO_GET_DEVICE_PA(MMIO_DEVID_MC) <= address &&
} else if (exosphere_get_target_firmware() >= EXOSPHERE_TARGET_FIRMWARE_400 && MMIO_GET_DEVICE_PA(MMIO_DEVID_MC) <= address &&
address < MMIO_GET_DEVICE_PA(MMIO_DEVID_MC) + MMIO_GET_DEVICE_SIZE(MMIO_DEVID_MC)) {
/* Memory Controller RW supported only on 4.0.0+ */
const uint8_t mc_whitelist[0x68] = {