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ams: expose reboot payload for kernel panic

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This commit is contained in:
Michael Scire
2020-09-17 21:51:59 -07:00
parent 8d46d901d9
commit 48b4dd48a4
12 changed files with 97 additions and 51 deletions
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22
exosphere/program/source/smc/secmon_smc_info.cpp
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@@ -15,6 +15,7 @@
*/
#include <exosphere.hpp>
#include "../secmon_error.hpp"
#include "../secmon_map.hpp"
#include "../secmon_misc.hpp"
#include "../secmon_page_mapper.hpp"
#include "../secmon_user_power_management.hpp"
@@ -157,6 +158,8 @@ namespace ams::secmon::smc {
return value.value;
}
constinit u64 g_payload_address = 0;
SmcResult GetConfig(SmcArguments &args, bool kern) {
switch (static_cast<ConfigItem>(args.r[1])) {
case ConfigItem::DisableProgramVerification:
@@ -267,6 +270,14 @@ namespace ams::secmon::smc {
/* NOTE: This may return values other than 1 in the future. */
args.r[1] = (GetEmummcConfiguration().IsEmummcActive() ? 1 : 0);
break;
case ConfigItem::ExospherePayloadAddress:
/* Gets the physical address of the reboot payload buffer, if one exists. */
if (g_payload_address != 0) {
args.r[1] = g_payload_address;
} else {
return SmcResult::NotInitialized;
}
break;
default:
return SmcResult::InvalidArgument;
}
@@ -309,6 +320,17 @@ namespace ams::secmon::smc {
return SmcResult::NotImplemented;
}
break;
case ConfigItem::ExospherePayloadAddress:
if (g_payload_address == 0) {
if (secmon::IsPhysicalMemoryAddress(args.r[2])) {
g_payload_address = args.r[2];
} else {
return SmcResult::InvalidArgument;
}
} else {
return SmcResult::Busy;
}
break;
default:
return SmcResult::InvalidArgument;
}