Commit Graph

981 Commits

Author SHA1 Message Date
Lioncash
6c42a23550 vm_manager: Provide address range checking functions for other memory regions
Makes the interface uniform when it comes to checking various memory
regions.
2019-03-04 17:08:55 -05:00
Lioncash
0be8fffc99 svc: Migrate address range checking functions to VMManager
Provides a bit of a more proper interface for these functions.
2019-03-04 16:32:03 -05:00
Lioncash
d29f9e9709 kernel/handle_table: Make local variables as const where applicable
Makes immutable state explicit.
2019-02-25 11:12:38 -05:00
Lioncash
5167d1577d kernel/handle_table: Allow process capabilities to limit the handle table size
The kernel allows restricting the total size of the handle table through
the process capability descriptors. Until now, this functionality wasn't
hooked up. With this, the process handle tables become properly restricted.

In the case of metadata-less executables, the handle table will assume
the maximum size is requested, preserving the behavior that existed
before these changes.
2019-02-25 11:12:32 -05:00
Lioncash
4f8cd74061 kernel/handle-table: In-class initialize data members
Directly initializes members where applicable.
2019-02-25 10:14:05 -05:00
Lioncash
0220862ba5 kernel/handle_table: Resolve truncation warnings
Avoids implicit truncation warnings from u32 -> u16 (the truncation is
desirable behavior here).
2019-02-25 09:53:21 -05:00
Lioncash
0113c36300 address_arbiter: Use nested namespaces where applicable
A fairly trivial change. Other sections of the codebase use nested
namespaces instead of separate namespaces here. This one must have just
been overlooked.
2019-02-16 12:41:30 -05:00
Lioncash
bd983414f6 core_timing: Convert core timing into a class
Gets rid of the largest set of mutable global state within the core.
This also paves a way for eliminating usages of GetInstance() on the
System class as a follow-up.

Note that no behavioral changes have been made, and this simply extracts
the functionality into a class. This also has the benefit of making
dependencies on the core timing functionality explicit within the
relevant interfaces.
2019-02-15 21:50:25 -05:00
Lioncash
48d9d66dc5 core_timing: Rename CoreTiming namespace to Core::Timing
Places all of the timing-related functionality under the existing Core
namespace to keep things consistent, rather than having the timing
utilities sitting in its own completely separate namespace.
2019-02-12 12:42:17 -05:00
Lioncash
414cc1eb1f kernel: Remove the Timer class
A holdover from citra, the Horizon kernel on the switch has no
prominent kernel object that functions as a timer. At least not
to the degree of sophistication that this class provided.

As such, this can be removed entirely. This class also wasn't used at
all in any meaningful way within the core, so this was just code sitting
around doing nothing. This also allows removing a few things from the
main KernelCore class that allows it to use slightly less resources
overall (though very minor and not anything really noticeable).
2019-01-31 23:05:15 -05:00
Lioncash
a3cdd773c3 kernel/wait_object: Devirtualize functions related to manipulating the thread list directly
No inheritors of the WaitObject class actually make use of their own
implementations of these functions, so they can be made non-virtual.

It's also kind of sketchy to allow overriding how the threads get added
to the list anyways, given the kernel itself on the actual hardware
doesn't seem to customize based off this.
2019-01-30 12:50:37 -05:00
Lioncash
4596ef5274 kernel/timer: Remove unnecessary WakeupAllWaitingThreads() override
This implementation just calls the base class variant of the function,
so this isn't necessary.
2019-01-30 12:45:00 -05:00
Lioncash
1a302d4d47 kernel/readable_event: Remove unnecessary WakeupAllWaitingThreads() override
This just calls the base variant of the function, so it can be removed.
2019-01-30 12:45:00 -05:00
Lioncash
7842536ddb
kernel/svc: Log out uncaught C++ exceptions from svcBreak
Looking into the implementation of the C++ standard facilities that seem
to be within all modules, it appears that they use 7 as a break reason
to indicate an uncaught C++ exception.

This was primarily found via the third last function called within
Horizon's equivalent of libcxxabi's demangling_terminate_handler(),
which passes the value 0x80000007 to svcBreak.
2019-01-26 21:19:13 -05:00
David Marcec
4f41fd84ff Removed pulse event type
Pulse is considered a hack and nothing should be using it. We should completely remove it
2019-01-04 20:47:20 +11:00
Lioncash
1f0c8bfeda core/kernel: Remove unnecessary inclusions
Gets rid of a few unnecessary header dependencies in some source files.
2018-12-31 19:04:16 -05:00
Lioncash
b4242633ad kernel/svc: Correct misleading error message within CreateThread()
This is a bounds check to ensure that the thread priority is within the
valid range of 0-64. If it exceeds 64, that doesn't necessarily mean
that an actual priority of 64 was expected (it actually means whoever
called the function screwed up their math).

Instead clarify the message to indicate the allowed range of thread
priorities.
2018-12-30 21:29:38 -05:00
Lioncash
3a8d38be7e kernel/svc: Sanitize core number and thread priorities in CreateThread()
Now that we handle the kernel capability descriptors we can correct
CreateThread to properly check against the core and priority masks
like the actual kernel does.
2018-12-30 21:23:56 -05:00
Lioncash
8769604144 kernel/process: Rename GetAllowedProcessorMask() and GetAllowedThreadPriorityMask()
Makes them consistent with their kernel capability counterparts.
2018-12-30 21:09:46 -05:00
Lioncash
205e6d3b97 kernel/svc: Simplify thread core ID sanitizing in CreateThread
Rather than use a switch here, this can be collapsed into a simple range
check, which is a little easier on the eyes.
2018-12-30 20:59:54 -05:00
Sebastian Valle
e5dfbe22ee
Merge pull request #1956 from lioncash/process-thread
kernel/process: Start the main thread using the specified ideal core
2018-12-30 20:32:41 -05:00
bunnei
331c252509
Merge pull request #1847 from ogniK5377/backtrace-break
Print backtrace on svcBreak
2018-12-29 22:58:13 -05:00
Lioncash
a81ff6f54c kernel/process: Start the main thread using the specified ideal core
This matches kernel behavior in that processes are started using their
specified ideal core, rather than always starting on core 0.
2018-12-27 21:50:16 -05:00
Lioncash
f80bc712ea kernel: Rename 'default' CPU core to 'ideal' core
This makes the naming more closely match its meaning. It's just a
preferred core, not a required default core. This also makes the usages
of this term consistent across the thread and process implementations.
2018-12-27 21:48:49 -05:00
Lioncash
771431f625 kernel/thread: Move process thread initialization into process.cpp
This function isn't a general purpose function that should be exposed to
everything, given it's specific to initializing the main thread for a
Process instance.

Given that, it's a tad bit more sensible to place this within
process.cpp, which keeps it visible only to the code that actually needs
it.
2018-12-27 20:32:30 -05:00
Lioncash
fbeaa330a3 kernel/process: Remove most allocation functions from Process' interface
In all cases that these functions are needed, the VMManager can just be
retrieved and used instead of providing the same functions in Process'
interface.

This also makes it a little nicer dependency-wise, since it gets rid of
cases where the VMManager interface was being used, and then switched
over to using the interface for a Process instance. Instead, it makes
all accesses uniform and uses the VMManager instance for all necessary
tasks.

All the basic memory mapping functions did was forward to the Process'
VMManager instance anyways.
2018-12-27 19:08:47 -05:00
bunnei
795335af0f
Merge pull request #1928 from lioncash/caps
kernel: Handle kernel capability descriptors
2018-12-27 11:15:34 -05:00
Lioncash
1392597ede kernel/vm_manager: Reset region attributes when unmapping a VMA
Like the other members related to memory regions, the attributes need to
be reset back to their defaults as well.
2018-12-26 20:15:29 -05:00
bunnei
ae582b6669
Merge pull request #1849 from encounter/svcSetThreadActivity
svc: Implement SetThreadActivity (thread suspension)
2018-12-26 15:54:14 -05:00
bunnei
e75e8b9580
Merge pull request #1921 from ogniK5377/no-unit
Fixed uninitialized memory due to missing returns in canary
2018-12-21 14:12:54 -05:00
bunnei
59ac3346eb
Merge pull request #1925 from lioncash/pid
kernel/{process, thread}: Amend behavior related to IDs
2018-12-21 13:45:27 -05:00
Lioncash
002ae08bbd kernel/process: Hook up the process capability parser to the process itself
While we're at it, we can also toss out the leftover capability parsing
from Citra.
2018-12-21 07:05:34 -05:00
Lioncash
d09fb82113 kernel/process_capability: Handle debug capability flags 2018-12-21 07:05:34 -05:00
Lioncash
10824c5d63 kernel/process_capability: Handle handle table capability flags
This just specifies the handle table size. There's also a section of
reserved bits that are checked against.
2018-12-21 07:05:34 -05:00
Lioncash
e0e84aede0 kernel/process_capability: Handle kernel version capability flags 2018-12-21 07:05:34 -05:00
Lioncash
010bc677f3 kernel/process_capability: Handle program capability flags 2018-12-21 07:05:34 -05:00
Lioncash
0f216d20e3 kernel/process_capability: Handle interrupt capability flags
Similar to the service capability flags, however, we currently don't
emulate the GIC, so this currently handles all interrupts as being valid
for the time being.
2018-12-21 07:05:34 -05:00
Lioncash
3dc59b74ec kernel/process_capability: Handle syscall capability flags 2018-12-21 07:05:34 -05:00
Lioncash
27caf71204 kernel/process_capability: Handle the priority mask and core mask flags
Handles the priority mask and core mask flags to allow building up the
masks to determine the usable thread priorities and cores for a kernel
process instance.
2018-12-21 07:05:34 -05:00
Lioncash
6ff5135521 kernel/process: Introduce process capability parsing skeleton
We've had the old kernel capability parser from Citra, however, this is
unused code and doesn't actually map to how the kernel on the Switch
does it. This introduces the basic functional skeleton for parsing
process capabilities.
2018-12-21 07:05:31 -05:00
Lioncash
b74eb88c68 kernel/svc: Handle thread handles within GetProcessId
If a thread handle is passed to svcGetProcessId, the kernel attempts to
access the process ID via the thread's instance's owning process.

Technically, this function should also be handling the kernel debug
objects as well, however we currently don't handle those kernel objects
yet, so I've left a note via a comment about it to remind myself when
implementing it in the future.
2018-12-19 12:16:15 -05:00
bunnei
e73dd39413
Merge pull request #1907 from lioncash/attribute
kernel/svc: Implement svcSetMemoryAttribute
2018-12-19 11:50:50 -05:00
Lioncash
caab838bdb svc: Implement svcSetMemoryAttribute
With all the basic backing functionality implemented, we can now unstub
svcSetMemoryAttribute.
2018-12-19 10:59:40 -05:00
Lioncash
622242e345 vm_manager: Add member function for setting memory attributes across an address range
This puts the backing functionality for svcSetMemoryAttribute in place,
which will be utilized in a following change.
2018-12-19 10:59:40 -05:00
Lioncash
603cc72168 vm_manager: Add member function for checking a memory range adheres to certain attributes, permissions and states 2018-12-19 10:59:36 -05:00
Lioncash
62d4377053 kernel/kernel: Use correct initial PID for userland Process instances
Starts the process ID counter off at 81, which is what the kernel itself
checks against internally when creating processes. It's actually
supposed to panic if the PID is less than 81 for a userland process.
2018-12-18 22:54:01 -05:00
Lioncash
0906302ca9 kernel/svc: Correct output parameter for svcGetThreadId
The service call uses a 64-bit value, just like svcGetProcessId. This
amends the function signature accordingly.
2018-12-18 22:38:26 -05:00
Lioncash
8435451093 kernel/thread: Make thread_id a 64-bit value
The kernel uses a 64-bit value for the thread ID, so we shouldn't be
using a 32-bit value.
2018-12-18 22:37:03 -05:00
Lioncash
43e1189688 kernel/svc: Correct output parameter for svcGetProcessId
svcGetProcessId's out parameter is a pointer to a 64-bit value, not a
32-bit one.
2018-12-18 22:30:56 -05:00
Lioncash
9b3a38e3d3 kernel/process: Make process_id a 64-bit value
In the actual kernel, this is a 64-bit value, so we shouldn't be using a
32-bit type to handle it.
2018-12-18 22:28:55 -05:00