Fennix/Kernel
1
0
Fork 0
mirror of https://github.com/Fennix-Project/Kernel.git synced 2025-07-07 05:19:20 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

QoL and bug fixes

Browse Source
This commit is contained in:
Alex
2023-04-10 03:11:46 +03:00
parent 25aa9ff6a6
commit b4dbf2c281
83 changed files with 1438 additions and 1025 deletions
Download Patch File Download Diff File Expand all files Collapse all files

68
Kernel.cpp
View File

@ -1,18 +1,18 @@
/*
This file is part of Fennix Kernel.
This file is part of Fennix Kernel.
Fennix Kernel is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Kernel is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Kernel is distributed in the hope that 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.
Fennix Kernel is distributed in the hope that 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 Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
You should have received a copy of the GNU General Public License
along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/
#include "kernel.h"
@ -70,6 +70,8 @@ LockClass mExtTrkLock;
* - [ ] Fix memcpy, memset and memcmp functions (they are not working properly with SIMD).
* - [ ] Support Aarch64.
* - [ ] Fully support i386.
* - [ ] SMP trampoline shouldn't be hardcoded at 0x2000.
* - [ ] Rework the stack guard.
*
* ISSUES:
* - [ ] Kernel stack is smashed when an interrupt occurs. (this bug it occurs when an interrupt like IRQ1 or IRQ12 occurs)
@ -146,6 +148,13 @@ LockClass mExtTrkLock;
* - CPUID lists:
* https://www.amd.com/system/files/TechDocs/40332.pdf
*
* - SMBIOS:
* https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.2.0.pdf
*
* - UMIP, SMAP and SMEP:
* https://en.wikipedia.org/wiki/Control_register
* https://web.archive.org/web/20160312223150/http://ncsi.com/nsatc11/presentations/wednesday/emerging_technologies/fischer.pdf
* https://en.wikipedia.org/wiki/Supervisor_Mode_Access_Prevention
*/
#ifdef a64
@ -176,7 +185,7 @@ using VirtualFileSystem::FileStatus;
using VirtualFileSystem::Node;
using VirtualFileSystem::NodeFlags;
BootInfo *bInfo = nullptr;
__aligned(16) BootInfo bInfo{};
Video::Display *Display = nullptr;
SymbolResolver::Symbols *KernelSymbolTable = nullptr;
Power::Power *PowerManager = nullptr;
@ -233,11 +242,11 @@ EXTERNC void KPrint(const char *Format, ...)
EXTERNC NIF void Main(BootInfo *Info)
{
BootClock = Time::ReadClock();
bInfo = (BootInfo *)KernelAllocator.RequestPages(TO_PAGES(sizeof(BootInfo)));
memcpy(bInfo, Info, sizeof(BootInfo));
// bInfo = (BootInfo *)KernelAllocator.RequestPages(TO_PAGES(sizeof(BootInfo) + 1));
memcpy(&bInfo, Info, sizeof(BootInfo));
debug("BootInfo structure is at %p", bInfo);
Display = new Video::Display(bInfo->Framebuffer[0]);
Display = new Video::Display(bInfo.Framebuffer[0]);
printf("\eFFFFFF%s - %s [\e058C19%s\eFFFFFF]\n", KERNEL_NAME, KERNEL_VERSION, GIT_COMMIT_SHORT);
/**************************************************************************************/
KPrint("Time: \e8888FF%02d:%02d:%02d %02d/%02d/%02d UTC",
@ -249,7 +258,7 @@ EXTERNC NIF void Main(BootInfo *Info)
Interrupts::Initialize(0);
KPrint("Reading Kernel Parameters");
ParseConfig((char *)bInfo->Kernel.CommandLine, &Config);
ParseConfig((char *)bInfo.Kernel.CommandLine, &Config);
if (Config.BootAnimation)
{
@ -268,8 +277,8 @@ EXTERNC NIF void Main(BootInfo *Info)
KPrint("Initializing CPU Features");
CPU::InitializeFeatures(0);
if (strcmp(CPU::Hypervisor(), x86_CPUID_VENDOR_TCG) == 0)
KPrint("\eFFA500TCG Virtual Machine detected.");
if (DebuggerIsAttached)
KPrint("\eFFA500Kernel debugger detected.");
KPrint("Loading Kernel Symbols");
KernelSymbolTable = new SymbolResolver::Symbols((uintptr_t)Info->Kernel.FileBase);
@ -385,22 +394,22 @@ EXTERNC NIF void Main(BootInfo *Info)
for (size_t i = 0; i < MAX_MODULES; i++)
{
if (!bInfo->Modules[i].Address)
if (!bInfo.Modules[i].Address)
continue;
if (strcmp(bInfo->Modules[i].CommandLine, "initrd") == 0)
if (strcmp(bInfo.Modules[i].CommandLine, "initrd") == 0)
{
debug("Found initrd at %p", bInfo->Modules[i].Address);
debug("Found initrd at %p", bInfo.Modules[i].Address);
static char initrd = 0;
if (!initrd++)
new VirtualFileSystem::USTAR((uintptr_t)bInfo->Modules[i].Address, vfs);
new VirtualFileSystem::USTAR((uintptr_t)bInfo.Modules[i].Address, vfs);
}
if (strcmp(bInfo->Modules[i].CommandLine, "bootanim") == 0 && Config.BootAnimation)
if (strcmp(bInfo.Modules[i].CommandLine, "bootanim") == 0 && Config.BootAnimation)
{
debug("Found bootanim at %p", bInfo->Modules[i].Address);
debug("Found bootanim at %p", bInfo.Modules[i].Address);
static char bootanim = 0;
if (!bootanim++)
new VirtualFileSystem::USTAR((uintptr_t)bInfo->Modules[i].Address, bootanim_vfs);
new VirtualFileSystem::USTAR((uintptr_t)bInfo.Modules[i].Address, bootanim_vfs);
}
}
@ -462,15 +471,18 @@ EXTERNC __no_stack_protector NIF void Entry(BootInfo *Info)
{
trace("Hello, World!");
if (strcmp(CPU::Hypervisor(), x86_CPUID_VENDOR_TCG) == 0)
{
debug("\n\n----------------------------------------\nDEBUGGER DETECTED\n----------------------------------------\n\n");
DebuggerIsAttached = true;
}
// https://wiki.osdev.org/Calling_Global_Constructors
for (CallPtr *func = __init_array_start; func != __init_array_end; func++)
(*func)();
InitializeMemoryManagement(Info);
if (strcmp(CPU::Hypervisor(), x86_CPUID_VENDOR_TCG) == 0)
DebuggerIsAttached = true;
#ifdef DEBUG
/* I had to do this because KernelAllocator
* is a global constructor but we need