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ladybird/Kernel
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Liav A 252c92d565 Kernel/Graphics: Introduce support for QEMU isa-vga device 
This device is supposed to be used in microvm and ISA-PC machine types,
and we assume that if we are able to probe for the QEMU BGA version of
0xB0C5, then we have an existing ISA Bochs VGA adapter to utilize.
To ensure we don't instantiate the driver for non isa-vga devices, we
try to ensure that PCI is disabled because hardware IO test probe failed
so we can be sure that we use this special handling code only in the
QEMU microvm and ISA-PC machine types. Unfortunately, this means that if
for some reason the isa-vga device is attached for the i440FX or Q35
machine types, we simply are not able to drive the device in such setups
at all.

To determine the amount of VRAM being available, we read VBE register at
offset 0xA. That register holds the amount of VRAM divided by 64K, so we
need to multiply the value in our code to use the actual VRAM size value
again.

The isa-vga device requires us to hardcode the framebuffer physical
address to 0xE0000000, and that address is not expected to change in the
future as many other projects rely on the isa-vga framebuffer to be
present at that physical memory address.
2022-09-20 19:05:13 +01:00
..
API Kernel: Add missing include in API 2022-09-18 13:27:24 -04:00
Arch Kernel/Graphics: Introduce support for QEMU isa-vga device 2022-09-20 19:05:13 +01:00
Bus Kernel/Graphics: Introduce support for QEMU isa-vga device 2022-09-20 19:05:13 +01:00
Devices Kernel: Move x86-specific HID code to the Arch/x86 directory 2022-09-20 18:43:05 +01:00
FileSystem Kernel: Abstracts x86 reboot and shutdown specific methods 2022-09-20 18:43:05 +01:00
Firmware Kernel: Move x86-specific IRQ controller code to Arch/x86 directory 2022-09-20 18:43:05 +01:00
Graphics Kernel/Graphics: Introduce support for QEMU isa-vga device 2022-09-20 19:05:13 +01:00
Heap Kernel: Stop taking MM lock while using PD/PT quickmaps 2022-08-22 17:56:03 +02:00
Interrupts Kernel: Move x86-specific IRQ controller code to Arch/x86 directory 2022-09-20 18:43:05 +01:00
Library Kernel: Make self-contained locking smart pointers their own classes 2022-08-20 17:20:43 +02:00
Locking Kernel: Move Spinlock functions back to arch independent Locking folder 2022-08-26 12:51:57 +02:00
Memory Kernel/x86: Move RTC and CMOS code to x86 arch-specific subdirectory 2022-09-20 18:43:05 +01:00
Net Kernel/PCI: Convert PCI BAR number to a strong typed enum class 2022-09-20 18:43:05 +01:00
Prekernel Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Storage Kernel/Storage: Force PIO mode for ISA IDE controllers 2022-09-20 19:05:13 +01:00
Syscalls Kernel: Move PCSpeaker code to the x86-specific architecture directory 2022-09-20 18:43:05 +01:00
Tasks Kernel: Make self-contained locking smart pointers their own classes 2022-08-20 17:20:43 +02:00
Time Kernel: Move x86-specific IRQ controller code to Arch/x86 directory 2022-09-20 18:43:05 +01:00
TTY Kernel: Move PCSpeaker code to the x86-specific architecture directory 2022-09-20 18:43:05 +01:00
AddressSanitizer.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
AddressSanitizer.h Everywhere: Use bgianf@serenityos.org for my copyright attribution 2021-04-22 21:15:54 +02:00
Assertions.h Kernel/aarch64: Implement VERIFY_INTERRUPTS_{ENABLED, DISABLED} 2022-08-26 12:51:57 +02:00
AtomicEdgeAction.h Kernel: Add per platform Processor.h headers 2021-10-14 01:23:08 +01:00
BootInfo.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
CMakeLists.txt Kernel: Move x86-specific init sequence code to the x86/Arch directory 2022-09-20 18:43:05 +01:00
CommandLine.cpp Kernel/PCI: Don't use x86 initialization methods in non-x86 builds 2022-09-20 18:43:05 +01:00
CommandLine.h Kernel/PCI: Don't use x86 initialization methods in non-x86 builds 2022-09-20 18:43:05 +01:00
Coredump.cpp Kernel/x86: Move RTC and CMOS code to x86 arch-specific subdirectory 2022-09-20 18:43:05 +01:00
Coredump.h Kernel: Work using copies of specific region data during a coredump 2022-08-31 16:28:47 +02:00
Credentials.cpp Kernel: Make VirtualFileSystem functions take credentials as input 2022-08-21 16:02:24 +02:00
Credentials.h Kernel: Make VirtualFileSystem functions take credentials as input 2022-08-21 16:02:24 +02:00
Debug.h.in Kernel/FileSystem: Use a new debug flag for SysFS debug messages 2022-08-08 02:33:25 +00:00
DoubleBuffer.cpp Kernel: Annotate all KBuffer and DoubleBuffer with a custom name 2022-07-12 00:55:31 +01:00
DoubleBuffer.h Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
embedmap.sh Kernel: Make new kernel build process work on macOS 2021-07-15 11:04:30 +02:00
Forward.h Kernel: Add Credentials to hold a set of user and group IDs 2022-08-20 18:32:50 +02:00
FutexQueue.cpp Kernel: Propagate OOM conditions out of sys$futex 2022-07-21 16:39:22 +02:00
FutexQueue.h AK+Kernel: Add AK::AtomicRefCounted and use everywhere in the kernel 2022-08-20 17:15:52 +02:00
GlobalProcessExposed.cpp Kernel: Wrap process address spaces in SpinlockProtected 2022-08-24 14:57:51 +02:00
KBuffer.h Kernel: Annotate all KBuffer and DoubleBuffer with a custom name 2022-07-12 00:55:31 +01:00
KBufferBuilder.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
KBufferBuilder.h Kernel: Expose .length() of KBufferBuilder 2022-05-06 02:12:51 +04:30
KLexicalPath.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
KLexicalPath.h Everywhere: Pass AK::StringView by value 2021-11-11 01:27:46 +01:00
kprintf.cpp Kernel: Don't blindly compile Bochs debug output code in ConsoleDevice 2022-09-20 18:43:05 +01:00
kstdio.h Kernel: Don't blindly compile Bochs debug output code in ConsoleDevice 2022-09-20 18:43:05 +01:00
KString.cpp Kernel: Add an error propagating KString::format(..) API :^) 2021-11-30 11:16:35 +01:00
KString.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
KSyms.cpp Kernel: Move Kernel/Arch/x86/SafeMem.h to Kernel/Arch/SafeMem.h 2022-05-03 21:53:36 +02:00
KSyms.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
MiniStdLib.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
mkmap.sh Kernel: Use the toolchain's nm in mkmap.sh 2021-12-30 18:10:51 +01:00
Multiboot.h Kernel: Add basic aarch64 support to MemoryManager 2022-09-12 00:56:44 +01:00
Panic.cpp Kernel: Abstracts x86 reboot and shutdown specific methods 2022-09-20 18:43:05 +01:00
Panic.h Kernel: Implement __panic() for the aarch64 Kernel 2022-05-03 21:53:36 +02:00
PerformanceEventBuffer.cpp Kernel: Don't wrap AddressSpace's RegionTree in SpinlockProtected 2022-08-24 14:57:51 +02:00
PerformanceEventBuffer.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
PerformanceManager.h Everywhere: Fix a variety of typos 2022-09-14 04:46:49 +00:00
PhysicalAddress.h Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
Process.cpp Kernel: Wrap process address spaces in SpinlockProtected 2022-08-24 14:57:51 +02:00
Process.h Kernel: Stop verifying interrupts are disabled in Process::for_each 2022-08-27 21:54:13 +03:00
ProcessExposed.cpp Kernel: Update atime/ctime/mtime timestamps atomically 2022-08-22 17:56:03 +02:00
ProcessExposed.h Kernel: Update atime/ctime/mtime timestamps atomically 2022-08-22 17:56:03 +02:00
ProcessGroup.cpp Kernel: Make self-contained locking smart pointers their own classes 2022-08-20 17:20:43 +02:00
ProcessGroup.h Kernel: Make self-contained locking smart pointers their own classes 2022-08-20 17:20:43 +02:00
ProcessProcFSTraits.cpp Kernel: Use Process::credentials() and remove user ID/group ID helpers 2022-08-22 12:46:32 +02:00
ProcessSpecificExposed.cpp Kernel: Don't wrap AddressSpace's RegionTree in SpinlockProtected 2022-08-24 14:57:51 +02:00
Random.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
Random.h Kernel: Require lock rank for Spinlock construction 2022-08-19 20:26:47 -07:00
SanCov.cpp Kernel: Add some implied auto qualifiers 2021-12-30 14:32:17 +01:00
Scheduler.cpp Kernel/x86: Move RTC and CMOS code to x86 arch-specific subdirectory 2022-09-20 18:43:05 +01:00
Scheduler.h Kernel: Use InterruptsState in Spinlock code 2022-08-26 12:51:57 +02:00
Sections.h Kernel: Make the page table quickmaps per-CPU 2022-08-22 17:56:03 +02:00
StdLib.cpp Kernel: Move Kernel/Arch/x86/SafeMem.h to Kernel/Arch/SafeMem.h 2022-05-03 21:53:36 +02:00
StdLib.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Syscall.cpp Everywhere: Fix a variety of typos 2022-09-14 04:46:49 +00:00
Thread.cpp Kernel: Remove global MM lock in favor of SpinlockProtected 2022-08-26 01:04:51 +02:00
Thread.h Kernel: Show more (b)locking info when dumping the process list 2022-08-26 13:07:07 +02:00
ThreadBlockers.cpp Kernel: Use InterruptsState in Spinlock code 2022-08-26 12:51:57 +02:00
ThreadTracer.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
ThreadTracer.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
TimerQueue.cpp Kernel: Make self-contained locking smart pointers their own classes 2022-08-20 17:20:43 +02:00
TimerQueue.h Kernel: Make self-contained locking smart pointers their own classes 2022-08-20 17:20:43 +02:00
UBSanitizer.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
UnixTypes.h Kernel: Add support for SA_SIGINFO 2022-03-04 20:07:05 +01:00
UserOrKernelBuffer.cpp Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T> 2021-11-08 01:10:53 +01:00
UserOrKernelBuffer.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
VirtualAddress.h Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
WaitQueue.cpp Kernel: Don't register thread as custom data for WaitQueueBlocker 2021-08-24 01:57:11 +02:00
WaitQueue.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
WorkQueue.cpp Kernel: Make self-contained locking smart pointers their own classes 2022-08-20 17:20:43 +02:00
WorkQueue.h Kernel: Make self-contained locking smart pointers their own classes 2022-08-20 17:20:43 +02:00