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kern: implement KUserPointer (and test with QueryMemory) in advance of svc dev

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Michael Scire committed 2020-02-20 09:05:24 -08:00
1 parent 9f9593e05f
commit efae01c165
17 files changed
+460 -72
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mesosphere/kernel/source/arch/arm64/kern_exception_handlers_asm.s
+2 -2
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@@ -324,10 +324,10 @@ _ZN3ams4kern4arch5arm6430EL1SynchronousExceptionHandlerEv:
/* Data abort. Check if it was from trying to access userspace memory. */
mrs x1, elr_el1
adr x0, _ZN3ams4kern4arch5arm6438UserspaceMemoryAccessFunctionAreaBeginEv
adr x0, _ZN3ams4kern4arch5arm6432UserspaceAccessFunctionAreaBeginEv
cmp x1, x0
b.lo 3f
adr x0, _ZN3ams4kern4arch5arm6436UserspaceMemoryAccessFunctionAreaEndEv
adr x0, _ZN3ams4kern4arch5arm6430UserspaceAccessFunctionAreaEndEv
cmp x1, x0
b.hs 3f