Commit graph

3052 commits

Author SHA1 Message Date
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
4dc8a7da3f vm_manager: Rename meminfo_state to state
This is shorter and more concise. This also removes the now-innaccurate
comment, as it's not returned wholesale to svcQueryMemory anymore.
2018-12-15 19:43:36 -05:00
Lioncash
34b24a47e9 vm_manager: Add backing functionality for memory attributes
Adds the barebones enumeration constants and functions in place to
handle memory attributes, while also essentially leaving the attribute
itself non-functional.
2018-12-15 19:43:32 -05:00
bunnei
2f2fc47af2
Merge pull request #1732 from DarkLordZach/yield-types
svc: Implement yield types 0 and -1
2018-12-15 00:28:12 -05:00
bunnei
1a23970d17
Merge pull request #1899 from lioncash/state
vm_manager/svc: Modify MemoryState enum, and correct error handling for svcQueryMemory
2018-12-14 15:30:02 -05:00
bunnei
1006df7fc1
Merge pull request #1900 from lioncash/wrapper
svc_wrap: Correct register index for a wrapper specialization
2018-12-14 13:12:55 -05:00
Lioncash
b79f086613 svc: Enable svcQueryProcessMemory
svcQueryProcessMemory is trivial to implement, given all the behavior
necessary for it is present, it just needs a handler for it.
2018-12-12 15:45:05 -05:00
Lioncash
09a219d5b4 svc: Write out the complete MemoryInfo structure in QueryProcessMemory
In the previous change, the memory writing was moved into the service
function itself, however it still had a problem, in that the entire
MemoryInfo structure wasn't being written out, only the first 32 bytes
of it were being written out. We still need to write out the trailing
two reference count members and zero out the padding bits.

Not doing this can result in wrong behavior in userland code in the following
scenario:

MemoryInfo info;                 // Put on the stack, not quaranteed to be zeroed out.
svcQueryMemory(&info, ...);

if (info.device_refcount == ...) // Whoops, uninitialized read.

This can also cause the wrong thing to happen if the user code uses
std::memcmp to compare the struct, with another one (questionable, but
allowed), as the padding bits are not guaranteed to be a deterministic
value. Note that the kernel itself also fully zeroes out the structure
before writing it out including the padding bits.
2018-12-12 15:44:58 -05:00
Lioncash
d8deb39b83 svc: Handle memory writing explicitly within QueryProcessMemory
Moves the memory writes directly into QueryProcessMemory instead of
letting the wrapper function do it. It would be inaccurate to allow the
handler to do it because there's cases where memory shouldn't even be
written to. For example, if the given process handle is invalid.

HOWEVER, if the memory writing is within the wrapper, then we have no
control over if these memory writes occur, meaning in an error case, 68
bytes of memory randomly get trashed with zeroes, 64 of those being
written to wherever the memory info address points to, and the remaining
4 being written wherever the page info address points to.

One solution in this case would be to just conditionally check within
the handler itself, but this is kind of smelly, given the handler
shouldn't be performing conditional behavior itself, it's a behavior of
the managed function. In other words, if you remove the handler from the
equation entirely, does the function still retain its proper behavior?
In this case, no.

Now, we don't potentially trash memory from this function if an invalid
query is performed.
2018-12-12 15:43:31 -05:00
Lioncash
b1b855c5d9 vm_manager: Correct ordering of last two struct members of MemoryInfo
These should be swapped.
2018-12-12 15:43:31 -05:00
Lioncash
22230a2eca svc_wrap: Correct register index for a wrapper specialization
This would result in svcSetMemoryAttribute getting the wrong value for
its third parameter. This is currently fine, given the service function
is stubbed, however this will be unstubbed in a future change, so this
needs to change.
2018-12-12 15:14:28 -05:00
Lioncash
eb5f3f67f6 vm_manager: Amend the returned values for invalid memory queries in QueryMemory()
The kernel returns a memory info instance with the base address set to
the end of the address space, and the size of said block as
0 - address_space_end, it doesn't set both of said members to zero.
2018-12-12 15:08:06 -05:00
Lioncash
a8cc03502b vm_manager: Migrate memory querying to the VMManager interface
Gets rid of the need to directly access the managed VMAs outside of the
memory manager itself just for querying memory.
2018-12-12 15:07:30 -05:00
Lioncash
c02b8c895b vm_manager: Migrate MemoryInfo and PageInfo to vm_manager.h
Gets the two structures out of an unrelated header and places them with
the rest of the memory management code.

This also corrects the structures. PageInfo appears to only contain a
32-bit flags member, and the extra padding word in MemoryInfo isn't
necessary.
2018-12-12 14:03:53 -05:00
Lioncash
366985ca92 vm_manager: Amend MemoryState enum members
Amends the MemoryState enum to use the same values like the actual
kernel does. Also provides the necessary operators to operate on them.
This will be necessary in the future for implementing
svcSetMemoryAttribute, as memory block state is checked before applying
the attribute.
2018-12-12 14:03:50 -05:00
Jens Schmer
ae390ad5a2 Fix Process object leak on emulation stop
The Process object kept itself alive indefinitely because its handle_table
contains a SharedMemory object which owns a reference to the same Process object,
creating a circular ownership scenario.

Break that up by storing only a non-owning pointer in the SharedMemory object.
2018-12-12 17:25:56 +01:00
Mat M
9bae3ac33a
Merge pull request #1891 from DarkLordZach/istorage-getsize
fsp_srv: Implement IStorage::GetSize
2018-12-12 07:31:33 -05:00
bunnei
2c45c6d234
Merge pull request #1819 from DarkLordZach/disable-addons
patch_manager: Add support for disabling patches
2018-12-10 21:52:19 -05:00
bunnei
1aa9106244
Merge pull request #1883 from lioncash/log-fsp
service/fsp_srv: Correct returned value in GetGlobalAccessLogMode()
2018-12-10 21:45:29 -05:00
Zach Hilman
5e632caca5 fsp_srv: Implement IStorage::GetSize
Takes no input and returns the size as a u64. Needed by Katamari Damacy Reroll to boot.
2018-12-10 14:14:36 -05:00
Hexagon12
315f3342f7
Merge pull request #1872 from lioncash/proc-info
kernel/process: Set ideal core from metadata
2018-12-10 18:44:14 +02:00
bunnei
74242a8fb4
Merge pull request #1876 from lioncash/vma
vm_manager: Make vma_map private
2018-12-10 10:09:50 -05:00
Lioncash
f3a555a484 service/fsp_srv: Correct returned value in GetGlobalAccessLogMode()
Based off RE, the backing code only ever seems to use 0-2 as the range
of values 1 being a generic log enable, with 2 indicating logging should
go to the SD card. These are used as a set of flags internally.

Given we only care about receiving the log in general, we can just
always signify that we want logging in general.
2018-12-09 20:42:35 -05:00
bunnei
3bddd5351e
Merge pull request #1864 from lioncash/nrr
service/ldr: Amend layouts of NRO and NRR headers
2018-12-07 22:26:31 -05:00
bunnei
b9e80e97b7
Merge pull request #1874 from lioncash/bindings
hle/service, hle/sm: Minor cleanup
2018-12-07 18:31:04 -05:00
Lioncash
d4c1b9d311 vm_manager: Make vma_map private
This was only ever public so that code could check whether or not a
handle was valid or not. Instead of exposing the object directly and
allowing external code to potentially mess with the map contents, we
just provide a member function that allows checking whether or not a
handle is valid.

This makes all member variables of the VMManager class private except
for the page table.
2018-12-06 15:02:17 -05:00
bunnei
8de6403a08
Merge pull request #1861 from lioncash/reset
kernel/svc: Correct behavior of svcResetSignal()
2018-12-06 13:42:46 -05:00
Lioncash
24f051d723 hle/service: Replace log + UNIMPLEMENTED with UNIMPLEMENTED_MSG
Combines the two into one, shortening the amount of code here.
2018-12-06 01:40:23 -05:00
Lioncash
9f56477539 hle/service: Remove unnecessary using declarations
Only one usage of the specified objects made use of the lack of
namespacing. Given the low usage, we can just remove these.
2018-12-06 01:37:41 -05:00
Lioncash
d8625f5544 hle/service, hle/sm: Compress usages of MakeResult()
These auto-deduce the result based off its arguments, so there's no need
to do that work for the compiler, plus, the function return value itself
already indicates what we're returning.
2018-12-06 01:33:22 -05:00
Lioncash
a8269fdae3 hle/service, hle/sm: Use structured bindings where applicable
Gets rid of the need to keep the variables separate from their actual
initialization spots.
2018-12-06 01:31:26 -05:00
Lioncash
547eecf119 kernel/process: Set ideal core from metadata
A very trivial change. If metadata is available, the process should use
it to retrieve the desired core for the process to run on.
2018-12-05 16:59:37 -05:00
Lioncash
7c9b194d63 service/ldr: Deduplicate instruction cache clearing code in LoadNro()
We don't need to specify all of the ARM interfaces explicitly.
2018-12-05 00:33:47 -05:00
Lioncash
05a6f1f676 service/ldr: Amend layout of the NRO header
The first word is just a padding byte, it's not an actual entry
instruction. Also renames the rest of the entries according to
SwitchBrew.
2018-12-05 00:16:49 -05:00
Lioncash
817fb18e30 service/ldr: Corrent padding within the NRR header layout
The padding after the magic signature value should be 12 bytes rather
than 28 bytes. The other 16 should be placed after the title ID pattern.
2018-12-05 00:05:04 -05:00
Zach Hilman
e6f7825a24 svc: Avoid incorrect fast yield condition 2018-12-04 22:11:32 -05:00
Lioncash
2f253986df kernel/svc: Correct behavior of svcResetSignal()
While partially correct, this service call allows the retrieved event to
be null, as it also uses the same handle to check if it was referring to
a Process instance. The previous two changes put the necessary machinery
in place to allow for this, so we can simply call those member functions
here and be done with it.
2018-12-04 20:14:59 -05:00
Lioncash
c7462ce712 kernel/process: Make Process a WaitObject
Process instances can be waited upon for state changes. This is also
utilized by svcResetSignal, which will be modified in an upcoming
change. This simply puts all of the WaitObject related machinery in
place.
2018-12-04 20:14:59 -05:00
Lioncash
a3aa7aaf0b kernel/readable_event: Add member function for enforcing a strict reset contract
svcResetSignal relies on the event instance to have already been
signaled before attempting to reset it. If this isn't the case, then an
error code has to be returned.
2018-12-04 20:14:55 -05:00
bunnei
d08d4a366b
Merge pull request #1704 from DarkLordZach/oss-sysarchive
file_sys: Implement open source system archives
2018-12-04 19:59:52 -05:00
Lioncash
8ea1f28614 kernel/svc: Remove unused header inclusion 2018-12-04 15:48:20 -05:00
Lioncash
a543c35962 kernel/svc: Implement svcSignalEvent()
This function simply does a handle table lookup for a writable event
instance identified by the given handle value. If a writable event
cannot be found for the given handle, then an invalid handle error is
returned. If a writable event is found, then it simply signals the
event, as one would expect.
2018-12-04 15:47:59 -05:00
Lioncash
2a1f59b301 kernel/svc: Implement svcCreateEvent()
svcCreateEvent operates by creating both a readable and writable event
and then attempts to add both to the current process' handle table.

If adding either of the events to the handle table fails, then the
relevant error from the handle table is returned.

If adding the readable event after the writable event to the table
fails, then the writable event is removed from the handle table and the
relevant error from the handle table is returned.

Note that since we do not currently test resource limits, we don't check
the resource limit table yet.
2018-12-04 15:47:55 -05:00
bunnei
d533767623
Merge pull request #1853 from lioncash/event
kernel/object: Amend handle types to distinguish between readable and writable events
2018-12-04 12:25:40 -05:00
Lioncash
5eb057f422 kernel/object: Amend handle types to distinguish between readable and writable events
Two kernel object should absolutely never have the same handle ID type.
This can cause incorrect behavior when it comes to retrieving object
types from the handle table. In this case it allows converting a
WritableEvent into a ReadableEvent and vice-versa, which is undefined
behavior, since the object types are not the same.

This also corrects ClearEvent() to check both kernel types like the
kernel itself does.
2018-12-04 02:20:47 -05:00
Lioncash
ac966e4213 kernel/handle_table: Amend reference to CTR-OS in Create()
Another hold-over from Citra.
2018-12-04 01:50:44 -05:00
Lioncash
312690b450 kernel/svc: Implement the resource limit svcGetInfo option
Allows a process to register the resource limit as part of its handle
table.
2018-12-04 01:50:30 -05:00
V.Kalyuzhny
b330b495dc [Kernel::CreateThread] Match format specifiers to LOG_TRACE's arguments 2018-12-04 05:13:50 +02:00
Zach Hilman
ddf5903cd9 scheduler: Avoid manual Reschedule call
This will automatically occur anyway when PrepareReschedule is called
2018-12-03 21:22:09 -05:00
bunnei
9f1ac96afa
Merge pull request #1840 from lioncash/info
svc: Reorganize svcGetInfo, handle more error cases for existing implemented info categories
2018-12-03 18:46:22 -05:00