Commit graph

325 commits

Author SHA1 Message Date
Tom
6a620562cc Kernel: Allow passing a thread argument for new kernel threads
This adds the ability to pass a pointer to kernel thread/process.
Also add the ability to use a closure as thread function, which
allows passing information to a kernel thread more easily.
2020-11-30 13:17:02 +01:00
Tom
2b78b17926 Kernel: Enable VMWareBackdoor immediately at boot
Rather than waiting until we get the first mouse packet, enable the
absolute mode immediately. This avoids having to click first to be
able to move the mouse.
2020-11-26 10:00:01 +01:00
Tom
91db31880f Kernel: Add I8042Controller to detect and manage PS/2 devices
Rework the PS/2 keyboard and mouse drivers to use a common 8042
controller driver. Also, reset and reconfigure the 8042 controller
as they are not guaranteed to be in the state that we expect.
2020-11-12 18:04:16 +01:00
Tom
fe615e601a Kernel: Set up and calibrate APIC timer, and enable timer on all CPUs
This enables the APIC timer on all CPUs, which means Scheduler::timer_tick
is now called on all CPUs independently. We still don't do anything on
the APs as it instantly crashes due to a number of other problems.
2020-10-25 21:18:35 +01:00
AnotherTest
dd60fe4d37 Kernel: Optionally take some arguments to pass to the init program
This makes it possible to start _everything_ under UserspaceEmulator, by
setting `init_args` to `--report-to-debug,/bin/SystemServer` and `init`
to `/bin/UserspaceEmulator`.
With the UE patches before this, we get to spawn WindowServer, and crash
because of FLD_RM32 (nothing tested past that) in graphical mode.
But we get a working shell in text mode :^) (and DHCPClient fails when
setting whatever settings it has received)
2020-10-25 10:13:03 +01:00
Tom
838d9fa251 Kernel: Make Thread refcounted
Similar to Process, we need to make Thread refcounted. This will solve
problems that will appear once we schedule threads on more than one
processor. This allows us to hold onto threads without necessarily
holding the scheduler lock for the entire duration.
2020-09-27 19:46:04 +02:00
Andreas Kling
e834c24eea Kernel/USB: Start fleshing out a basic UHCI controller driver :^)
Let's see if we can talk to some USB devices. We will now detect
a UHCI controller if present on the PCI bus.
2020-09-04 21:21:41 +02:00
Tom
81780e607d Kernel: Copy command line to a safe place
This avoids kmalloc overwriting it because it may be within the
kmalloc or eternal pool.
2020-08-25 09:48:48 +02:00
Tom
d89582880e Kernel: Switch singletons to use new Singleton class
MemoryManager cannot use the Singleton class because
MemoryManager::initialize is called before the global constructors
are run. That caused the Singleton to be re-initialized, causing
it to create another MemoryManager instance.

Fixes #3226
2020-08-25 09:48:48 +02:00
Andreas Kling
2fd9e72264 Revert "Kernel: Switch singletons to use new Singleton class"
This reverts commit f48feae0b2.
2020-08-22 18:01:59 +02:00
Andreas Kling
8a21491d86 Revert "Kernel: Copy command line to a safe place"
This reverts commit 41c005cb14.
2020-08-22 16:34:12 +02:00
Tom
41c005cb14 Kernel: Copy command line to a safe place
This avoids kmalloc overwriting it because it may be within the
kmalloc or eternal pool.
2020-08-22 10:46:24 +02:00
Tom
f48feae0b2 Kernel: Switch singletons to use new Singleton class
Fixes #3226
2020-08-21 11:47:35 +02:00
Andreas Kling
6d9b59f1b7 Kernel: Simplify the way we check for "serial_debug" on command line 2020-08-13 20:18:11 +02:00
Ben Wiederhake
936d5dcc01 Kernel: Tell compiler about invisible calls
This makes the Kernel build cleanly with -Wmissing-declarations.
2020-08-12 20:40:59 +02:00
Ben Wiederhake
8a41ce5cc7 Kernel: Group C++ ABI functions together
As suggested in #3096.
2020-08-12 20:40:59 +02:00
Tom
08ff25f4ef Kernel: Invoke heap constructors separately early on
By having a separate list of constructors for the kernel heap
code, we can properly use constructors without re-running them
after the heap was already initialized. This solves some problems
where values were wiped out because they were overwritten by
running their constructors later in the initialization process.
2020-08-10 20:05:18 +02:00
Ben Wiederhake
bee08a4b9f Kernel: More PID/TID typing 2020-08-10 11:51:45 +02:00
Luke
98bea083c4 Kernel: Make BXVGA detection actually detect VBoxVGA
I decided to play around with trying to run Serenity in VirtualBox.
It crashed WindowServer with a beautiful array of multi-color
flashing letters :^)

Skipping getting side-tracked seeing that it chose MBVGA in the
serial debug and trying to debug why it caused such a display,
I finally checked BXVGA.

While find_framebuffer_address checks for VBoxVGA, init_stage2 didn't.
Whoops!
2020-07-30 17:01:41 +02:00
Florian Angermeier
d8fa8c5f82 Kernel: Ensure there are all VirtualConsoles properly initialized
It is possible to switch to VirtualConsoles 1 to 4 via the shortcut
ALT + [1-4]. Therefor the array of VirtualConsoles should be guaranteed
to be initialized.

Also add an constant for the maximum number of VirtualConsoles to
guarantee consistency.
2020-07-17 00:36:50 +02:00
Tom
b02d33bd63 Kernel: Fix some flaws that caused crashes or hangs during boot
We need to halt the BSP briefly until all APs are ready for the
first context switch, but we can't hold the same spinlock by all
of them while doing so. So, while the APs are waiting on each other
they need to release the scheduler lock, and then once signaled
re-acquire it. Should solve some timing dependent hangs or crashes,
most easily observed using qemu with kvm disabled.
2020-07-09 23:24:55 +02:00
Tom
bc107d0b33 Kernel: Add SMP IPI support
We can now properly initialize all processors without
crashing by sending SMP IPI messages to synchronize memory
between processors.

We now initialize the APs once we have the scheduler running.
This is so that we can process IPI messages from the other
cores.

Also rework interrupt handling a bit so that it's more of a
1:1 mapping. We need to allocate non-sharable interrupts for
IPIs.

This also fixes the occasional hang/crash because all
CPUs now synchronize memory with each other.
2020-07-06 17:07:44 +02:00
Tom
9b4e6f6a23 Kernel: Consolidate features into CPUFeature enum
This allows us to consolidate printing out all the CPU features
into one log statement. Also expose them in /proc/cpuinfo
2020-07-03 19:32:34 +02:00
Tom
57b61b2dde Kernel: Split initialization of Processor structure
We need to very early on initialize the Processor structure so
that we can use RecursiveSpinLock early on.
2020-07-03 19:32:34 +02:00
Tom
96109e9776 Kernel: Boot all APS all the way into their own idle loop 2020-07-01 12:07:01 +02:00
Tom
2a38cc9a12 Kernel: Add a quickmap region for each processor
Threads need to be able to concurrently quickmap things.
2020-07-01 12:07:01 +02:00
Tom
16783bd14d Kernel: Turn Thread::current and Process::current into functions
This allows us to query the current thread and process on a
per processor basis
2020-07-01 12:07:01 +02:00
Tom
fb41d89384 Kernel: Implement software context switching and Processor structure
Moving certain globals into a new Processor structure for
each CPU allows us to eventually run an instance of the
scheduler on each CPU.
2020-07-01 12:07:01 +02:00
Peter Elliott
e1aef94a40 Kernel: Make Random work on CPUs without rdrand
- If rdseed is not available, fallback to rdrand.
- If rdrand is not available, block for entropy, or use insecure prng
  depending on if user wants fast or good random.
2020-06-27 19:40:33 +02:00
Andreas Kling
37598de582 Kernel: Remove DMI decoder from the kernel
As suggested by @supercomputer7, we can simply expose this as a blob
and decode it in userspace instead.

Fixes #2599.
2020-06-20 18:39:46 +02:00
Andreas Kling
fdfda6dec2 AK: Make string-to-number conversion helpers return Optional
Get rid of the weird old signature:

- int StringType::to_int(bool& ok) const

And replace it with sensible new signature:

- Optional<int> StringType::to_int() const
2020-06-12 21:28:55 +02:00
Tom
0bc92c259d Kernel: Detect APs and boot them into protected mode
This isn't fully working, the APs pretend like they're
fully initialized and are just halted permanently for now.
2020-06-04 18:15:23 +02:00
Sergey Bugaev
df128821b2 Kernel: Introduce "boot_mode" and "init" cmdline options
Together, they replace the old text_debug option.

* boot_mode should be either "graphical" (the default) or "text". We could
  potentially support other values here in the future.
* init specifies which userspace process the kernel should spawn to bootstrap
  userspace. By default, this is SystemServer, but you can specify e.g.
  init=/bin/Shell to run system diagnostics.
2020-05-27 11:19:38 +02:00
Sergey Bugaev
f11270e7ce Kernel: Port VirtualConsole to LibVT :^)
Unfortunately this drops the feature of preserving VGA buffer contents.

Resolves https://github.com/SerenityOS/serenity/issues/2399
2020-05-27 11:19:38 +02:00
Nathan Lanza
f4e6c4c6f0
Kernel: Use Multiboot macros instead of magic constants (#2090)
MUTLIBOOT_FRAMEBUFFER_TYPE_{RGB,EGA_TEXT} are defined in the Multiboot.h
header. Use those definitions instead of hard-coding 1 and 2.
2020-05-04 09:52:04 +02:00
Andreas Kling
e3b450005f Kernel: Remove CommandLine::get() in favor of lookup()
lookup() returns an Optional<String> which allows us to implement easy
default values using lookup(key).value_or(default_value);
2020-04-18 14:22:42 +02:00
Liav A
ea58563970 Kernel: Instantiate network adapters in their own detect() methods
This commit is one step forward for pluggable driver modules.
Instead of creating instances of network adapter classes, we let
their detect() methods to figure out if there are existing devices
to initialize.
2020-04-11 10:02:31 +02:00
Liav A
65f939b55c Kernel: Keep records of PCI::Address & PCI::ID pairs for enumeration 2020-04-11 10:02:31 +02:00
Liav A
9bb4a6ecf6 Kernel: Create BXVGA device if found in the PCI bus 2020-04-09 23:43:30 +02:00
Liav A
a7c5a1fe69 Kernel: Simplify the Time management initialization 2020-04-09 19:59:53 +02:00
Liav A
8e336798b5 Kernel: Run clang-format on init.cpp 2020-04-09 19:59:53 +02:00
Liav A
8139688ef1 Kernel: Simplify the Interrupt management initialization 2020-04-09 19:59:53 +02:00
Andreas Kling
871d450b93 Kernel: Remove redundant "ACPI" from filenames in ACPI/ 2020-04-09 18:17:27 +02:00
Andreas Kling
1c865ee8d4 Kernel: Merge ACPI::StaticParser into ACPI::Parser
There's no need for StaticParser to be a separate thing from Parser.
2020-04-09 18:15:02 +02:00
Andreas Kling
4644217094 Kernel: Remove "non-operational" ACPI parser state
If we don't support ACPI, just don't instantiate an ACPI parser.
This is way less confusing than having a special parser class whose
only purpose is to do nothing.

We now search for the RSDP in ACPI::initialize() instead of letting
the parser constructor do it. This allows us to defer the decision
to create a parser until we're sure we can make a useful one.
2020-04-09 17:19:11 +02:00
Andreas Kling
95e44a33c1 Kernel: Move ACPI initialization from init.cpp to ACPI::initialize() 2020-04-09 13:39:10 +02:00
Andreas Kling
f25d2f5518 Kernel: Move NetworkTask startup into NetworkTask::spawn() 2020-04-09 13:31:05 +02:00
Andreas Kling
f2ebfb9e4e Kernel: Simplify PCI initialization logic
- Get rid of the PCI::Initializer object which was not serving any real
  purpose or holding any data members.
- Move command line parsing from init to PCI::initialize().
2020-04-08 17:39:17 +02:00
Andreas Kling
5cc09b0245 Kernel: Simplify VMWareBackdoor somewhat
- If there is no VMWare backdoor, don't allocate memory for it.
- Remove the "unsupported" state, instead just don't instantiate.
- Move the command-line parsing from init to the driver.
- Move mouse packet reception from PS2MouseDevice to VMWareBackdoor.
2020-04-08 17:19:46 +02:00
Andreas Kling
e4ab908fe0 Kernel: Move global constructor invocation a bit earlier 2020-04-08 17:19:46 +02:00