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thermosphere: add hypercall support... even if unused

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This commit is contained in:
TuxSH 2019-07-23 00:54:35 +02:00
parent b5c6b06dad
commit bcc72896fd
5 changed files with 68 additions and 4 deletions
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13
thermosphere/src/exceptions.c
View file

@ -14,10 +14,10 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "exceptions.h"
#include "hvc.h"
#include "log.h"
static void dumpStackFrame(const ExceptionStackFrame *frame, bool sameEl)
void dumpStackFrame(const ExceptionStackFrame *frame, bool sameEl)
{
#ifndef NDEBUG
for (u32 i = 0; i < 30; i += 2) {
@ -38,8 +38,17 @@ static void dumpStackFrame(const ExceptionStackFrame *frame, bool sameEl)
void handleLowerElSyncException(ExceptionStackFrame *frame, ExceptionSyndromeRegister esr)
{
switch (esr.ec) {
case Exception_HypervisorCallA64:
case Exception_HypervisorCallA32:
handleHypercall(frame, esr);
break;
default:
serialLog("Lower EL sync exception, EC = 0x%02llx IL=%llu ISS=0x%06llx\r\n", (u64)esr.ec, esr.il, esr.iss);
dumpStackFrame(frame, false);
break;
}
}
void handleSameElSyncException(ExceptionStackFrame *frame, ExceptionSyndromeRegister esr)

2
thermosphere/src/exceptions.h
View file

@ -78,3 +78,5 @@ typedef struct ExceptionSyndromeRegister {
ExceptionClass ec : 6; // Exception Class
u32 res0 : 32;
} ExceptionSyndromeRegister;
void dumpStackFrame(const ExceptionStackFrame *frame, bool sameEl);

29
thermosphere/src/hvc.c Normal file
View file

@ -0,0 +1,29 @@
/*
* Copyright (c) 2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "hvc.h"
#include "log.h"
void handleHypercall(ExceptionStackFrame *frame, ExceptionSyndromeRegister esr)
{
u32 id = esr.iss;
switch (id) {
default:
serialLog("Unhandled hypercall: 0x%x.\r\n");
dumpStackFrame(frame, false);
break;
}
}

20
thermosphere/src/hvc.h Normal file
View file

@ -0,0 +1,20 @@
/*
* Copyright (c) 2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "exceptions.h"
void handleHypercall(ExceptionStackFrame *frame, ExceptionSyndromeRegister esr);

4
thermosphere/src/utils.h
View file

@ -105,3 +105,7 @@ static inline u32 get_spsr(void) {
static inline bool check_32bit_additive_overflow(u32 a, u32 b) {
return __builtin_add_overflow_p(a, b, (u32)0);
}
static inline void panic(void) {
for (;;);
}