OmniNX/Horizon-OC-pro
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refuse to adhere to SMMU for BPMP-FW

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souldbminersmwc committed 2026-08-27 16:14:19 -04:00
1 parent 19f040ece1
commit fc10a53bda
2 files changed
+17 -9
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Source/Atmosphere-Patches/diff/secmon_setup.diff
+15 -7
View File
@@ -1,18 +1,21 @@
903c903
< void EnableBpmpSmmu() {
---
> [[maybe_unused]] void EnableBpmpSmmu() {
1200c1200
< EnableBpmpSmmu();
---
> // EnableBpmpSmmu(); I REFUSE
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< const auto target_fw = GetTargetFirmware();
---
> // const auto target_fw = GetTargetFirmware();
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< if (target_fw >= TargetFirmware_2_0_0) {
< /* Set the PMC secure. */
< reg::ReadWrite(APB_MISC + APB_MISC_SECURE_REGS_APB_SLAVE_SECURITY_ENABLE_REG0_0, SLAVE_SECURITY_REG_BITS_ENUM(0, PMC, ENABLE));
< }
---
> // if (target_fw >= TargetFirmware_2_0_0) {
> // /* Set the PMC secure. */ I REFUSE
> // reg::ReadWrite(APB_MISC + APB_MISC_SECURE_REGS_APB_SLAVE_SECURITY_ENABLE_REG0_0, SLAVE_SECURITY_REG_BITS_ENUM(0, PMC, ENABLE));
> // }
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<
< if (target_fw >= TargetFirmware_4_0_0) {
< /* Set the MC secure. */
< reg::ReadWrite(APB_MISC + APB_MISC_SECURE_REGS_APB_SLAVE_SECURITY_ENABLE_REG1_0, SLAVE_SECURITY_REG_BITS_ENUM(1, MC0, ENABLE),
@@ -20,6 +23,11 @@
< SLAVE_SECURITY_REG_BITS_ENUM(1, MCB, ENABLE));
< }
---
> // if (target_fw >= TargetFirmware_2_0_0) {
> // /* Set the PMC secure. */ I REFUSE
> // reg::ReadWrite(APB_MISC + APB_MISC_SECURE_REGS_APB_SLAVE_SECURITY_ENABLE_REG0_0, SLAVE_SECURITY_REG_BITS_ENUM(0, PMC, ENABLE));
> // }
>
> // if (target_fw >= TargetFirmware_4_0_0) {
> // /* Set the MC secure. */ I REFUSE
> // reg::ReadWrite(APB_MISC + APB_MISC_SECURE_REGS_APB_SLAVE_SECURITY_ENABLE_REG1_0, SLAVE_SECURITY_REG_BITS_ENUM(1, MC0, ENABLE),
Source/Atmosphere-Patches/secmon_setup.cpp
+2 -2
View File
@@ -900,7 +900,7 @@ namespace ams::secmon {
reg::ReadWrite(PMC + APBDEV_PMC_SECURE_SCRATCH39, REG_BITS_VALUE(0, 27, WarmbootCarveoutConfig));
}
void EnableBpmpSmmu() {
[[maybe_unused]] void EnableBpmpSmmu() {
/* Define the ASID contents. */
constexpr int BpmpAsid = 1;
constexpr uintptr_t BpmpAsidPde = MemoryRegionPhysicalDeviceSecurityEngine.GetAddress();
@@ -1197,7 +1197,7 @@ namespace ams::secmon {
reg::ReadWrite(SYSTEM + AHB_ARBITRATION_DISABLE, AHB_REG_BITS_ENUM(ARBITRATION_DISABLE_COP, DISABLE));
/* Turn on the SMMU for the BPMP. */
EnableBpmpSmmu();
// EnableBpmpSmmu(); I REFUSE
/* Wait until the flow controller reports that the BPMP is halted. */
while (!reg::HasValue(FLOW_CTLR + FLOW_CTLR_HALT_COP_EVENTS, FLOW_REG_BITS_ENUM(HALT_COP_EVENTS_MODE, FLOW_MODE_STOP))) {