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5199 commits

Author SHA1 Message Date
Gunnar Beutner
c878054682 Kernel: Make VirtualAddress::page_base() work with 64-bit addresses 2021-07-18 17:31:13 +02:00
Gunnar Beutner
679ae6af81 Kernel: Remove some more hardcoded addresses 2021-07-18 17:31:13 +02:00
Gunnar Beutner
7c3bfde8fd Kernel: Make SCHEDULER_DEBUG work on x86_64 2021-07-18 17:31:13 +02:00
Gunnar Beutner
741ca5477c Kernel: Fix {read,write}_gs_ptr() for 64-bit addresses 2021-07-18 17:31:13 +02:00
Gunnar Beutner
294b918e9b Kernel: Ignore KUBSAN symbols in the kernel symbol map 2021-07-18 17:31:13 +02:00
Sahan Fernando
2845c6753e Kernel: Clean up VirtIOGPU class interfaces 2021-07-18 19:58:17 +04:30
Sahan Fernando
d9330c42fa Kernel: Replace VirtIOGPU reinterpret casts with AK::BinaryBufferWriter 2021-07-18 19:58:17 +04:30
Sahan Fernando
04226f0c0a Kernel: Improve debug prints for VirtIOGPU device config events 2021-07-18 19:58:17 +04:30
Sahan Fernando
4dddc56ad9 Kernel: Rename VirtIOGPU/VirtIOGPU.cpp to VirtIOGPU/GPU.cpp 2021-07-18 19:58:17 +04:30
Sahan Fernando
1c77f80676 Kernel: Put VirtIOGPU related types into a namespace 2021-07-18 19:58:17 +04:30
Andreas Kling
7791f7b9e6 Kernel/TmpFS: Remove some unnecessary includes 2021-07-18 14:29:27 +02:00
Andreas Kling
61e17ed590 Kernel/TmpFS: Use IntrusiveList and KString for OOM safety 
This patch moves TmpFS to using OOM-safe data types for storing
directory children.
 2021-07-18 14:29:27 +02:00
Tom
ae8472f9ca Kernel: Fix blocking relock of the big_lock while unlocking other Lock 
When a Thread is being unblocked and we need to re-lock the process
big_lock and re-locking blocks again, then we may end up in
Thread::block again while still servicing the original lock's
Thread::block. So permit recursion as long as it's only the big_lock
that we block on again.

Fixes #8822
 2021-07-18 13:08:51 +02:00
Andreas Kling
df5fa8aa39 Kernel/ProcFS: Remove redundant ProcFS& member from ProcFSInode 2021-07-18 02:24:26 +02:00
Andreas Kling
d298de5e09 Kernel/SysFS: Remove redundant SysFS& member from SysFSInode 2021-07-18 02:23:22 +02:00
Andreas Kling
d3cf4cd8f0 Kernel/DevFS: Remove redundant DevFS& member from DevFSInode 
All Inode subclasses can get to their FileSystem via Inode::fs().
 2021-07-18 02:21:34 +02:00
Andreas Kling
bd37840cf5 Kernel/Ext2FS: Surface Vector allocation failures in block allocation 2021-07-18 02:15:56 +02:00
Andreas Kling
1f18558ee2 Kernel: Make FileSystem::root_inode() return a plain Inode& 
All file system classes are expected to keep their root Inode object
in memory, so this function can safely return an Inode&.
 2021-07-18 01:53:04 +02:00
Andreas Kling
58c6d30f6a Kernel/Ext2FS: Cache the root inode in a member variable 
We often get queried for the root inode, and it will always be cached
in memory anyway, so let's make Ext2FS::root_inode() fast by keeping
the root inode in a dedicated member variable.
 2021-07-18 01:53:04 +02:00
Andreas Kling
9457d83986 Kernel: Rename Locker => MutexLocker 2021-07-18 01:53:04 +02:00
Andreas Kling
ab50a1480f Kernel/USB: Remove unneeded friend declaration in SysFSUSBBusDirectory 2021-07-18 01:53:04 +02:00
Andreas Kling
b975a74a1d Kernel/USB: Move USB bus information from /proc to /sys 
This patch moves all the USB data from /proc/bus/usb to /sys/bus/usb.
 2021-07-18 00:55:16 +02:00
Andreas Kling
6fae2a5f9e Kernel/ProcFS: Remove unused ProcFSExposedComponent::entries_count() 2021-07-17 23:50:01 +02:00
Andreas Kling
d686d2ef18 Kernel/SysFS: Remove unused SysFSComponent::entries_count() 2021-07-17 23:50:01 +02:00
Andreas Kling
2da0581fd2 Kernel: Replace "folder" => "directory" everywhere 
Folders are a GUI concept. File systems have directories.
 2021-07-17 23:50:00 +02:00
Andreas Kling
b8d6c3722d Kernel: Remove Inode::directory_entry_count() 
This was only used in one place: VirtualFileSystem::rmdir(), and that
has now been converted to a simple directory traversal.
 2021-07-17 22:36:04 +02:00
Andreas Kling
d1bbe8b652 Kernel: Count remaining children in VirtualFileSystem::rmdir() manually 
To count the remaining children, we simply need to traverse the
directory and increment a counter. No need for a custom virtual that
all file systems have to implement. :^)
 2021-07-17 22:34:43 +02:00
Andreas Kling
a3f58a5003 Kernel/DevFS: Use KString for DevFSDeviceInode::m_name 2021-07-17 22:17:07 +02:00
Andreas Kling
0d89cfcd9a Kernel/DevFS: Use KString for DevFSLinkInode::m_link 2021-07-17 22:11:41 +02:00
Andreas Kling
cd4d73e19e Kernel: Add an API for turning a UserOrKernelBuffer into a KString 2021-07-17 22:07:49 +02:00
Andreas Kling
dd37d0a327 Kernel/DevFS: Use KString for DevFSLinkInode::m_name 2021-07-17 21:40:32 +02:00
Andreas Kling
61c1937d02 Kernel/DevFS: Make DevFSInode::name() return StringView 2021-07-17 21:36:54 +02:00
Andreas Kling
6766efff9c Kernel: Make Inode::create_child() take the name as a StringView 
No sense in forcing callers to construct a String. One more small step
towards not using String in the kernel.
 2021-07-17 21:32:59 +02:00
Andreas Kling
9359f7801f Kernel/DevFS: Remove some unnecessary inode locking 
Unless we're accessing mutex-guarded metadata, there's no need to
acquire the inode lock.

The file system ID or inode index of a constructed inode will never
change, for example.
 2021-07-17 21:26:47 +02:00
Andreas Kling
3b805a57e6 Kernel: Rename Inode::m_lock => m_inode_lock 
This makes file system code much easier to read since it was hard when
both the file system and inode locks were called "m_lock".
 2021-07-17 21:17:39 +02:00
Andreas Kling
63e1423830 Kernel: Remove unused Inode::is_shared_vmobject() 2021-07-17 21:11:12 +02:00
Andreas Kling
cee9528168 Kernel: Rename Lock to Mutex 
Let's be explicit about what kind of lock this is meant to be.
 2021-07-17 21:10:32 +02:00
Andreas Kling
a803c4026c Kernel: Make FileSystem::class_name() return a StringView 2021-07-17 20:59:48 +02:00
Brian Gianforcaro
c0987453e6 Kernel: Remove double RedBlackTree lookup in VM/Space region removal 
We should never request a regions removal that we don't currently
own. We currently assert this everywhere else by all callers.

Instead lets just push the assert down into the RedBlackTree removal
and assume that we will always successfully remove the region.
 2021-07-17 16:22:59 +02:00
Brian Gianforcaro
d879709ec7 Kernel: Convert the PhysicalPage bool parameter to an enum 2021-07-17 18:38:28 +04:30
Brian Gianforcaro
eb282ad410 Kernel: Declare VM/RangeAllocator trivial destructor as default 
This is a clang tidy recommendation.
 2021-07-17 13:02:09 +02:00
Brian Gianforcaro
24bd664980 Kernel: Remove stale include from VM/RangeAllocator.cpp 
This was left over after the latest big refactor of the VM subsystem.
 2021-07-17 13:02:09 +02:00
Brian Gianforcaro
dbc77148c9 Kernel: Convert RangeAllocator VERIFY to proper error handling 
If a user allocates above 0x0 and below the allowable usermode
virtual address space, we need to return error instead of asserting.

Fixes: #8484
 2021-07-17 13:00:21 +02:00
Peter Bindels
a5a62f99c5 LibC: Use 64-bit stack smash value for 64-bit mode 
Otherwise it'll use the first 32 bits that happen to come after,
leading to very weird bugs. Fixes #8601
 2021-07-17 01:45:20 +02:00
Hediadyoin1
432a34a496 Kernel: Make PAGE_MASK architecture independent 2021-07-17 01:12:15 +02:00
Tom
3cca9e6704 Kernel: Initialize TimeManagement before using KernelRNG 
We should initialize the timers before KernelRNG as the RNG may want
to utilize system time as an entropy source.

Fixes #8710
 2021-07-17 00:04:57 +02:00
Tom
7bdd66ed89 Kernel: Remove TimeManagement::initialized that wasn't implemented 2021-07-17 00:04:57 +02:00
Daniel Bertalan
3099a6bf2a Kernel+AK: Generate compile-time error for non-sized delete 
This is a much more ergonomic option than getting a
`VERIFY_NOT_REACHED()` failure at run-time. I encountered this issue
with Clang, where sized deallocation is not the default due to ABI
breakage concerns.

Note that we can't simply just not declare these functions, because the
C++ standard states:
> If this function with size parameter is defined, the program shall
> also define the version without the size parameter.
 2021-07-16 20:51:13 +02:00
Daniel Bertalan
dd4ed4d22d Kernel: Implement aligned operator new and use it 
The compiler will use these to allocate objects that have alignment
requirements greater than that of our normal `operator new` (4/8 byte
aligned).

This means we can now use smart pointers for over-aligned types.

Fixes a FIXME.
 2021-07-16 20:51:13 +02:00
Daniel Bertalan
c176680443 Kernel: Tell the compiler about operator new's alignment 
By default, the compiler will assume that `operator new` returns
pointers that are aligned correctly for every built-in type. This is not
the case in the kernel on x64, since the assumed alignment is 16
(because of long double), but the kmalloc blocks are only
`alignas(void*)`.
 2021-07-16 20:51:13 +02:00