From b1658f93dc1157e7883d381b0316a60e760fe557 Mon Sep 17 00:00:00 2001 From: Amlal El Mahrouss Date: Sun, 22 Jun 2025 12:14:01 +0200 Subject: fix: HAL: syscall interrupt must be ring-3 only. Signed-off-by: Amlal El Mahrouss --- dev/kernel/HALKit/AMD64/HalDescriptorLoader.cc | 2 +- dev/kernel/HALKit/AMD64/Processor.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'dev/kernel/HALKit') diff --git a/dev/kernel/HALKit/AMD64/HalDescriptorLoader.cc b/dev/kernel/HALKit/AMD64/HalDescriptorLoader.cc index f9749946..dc680ce8 100644 --- a/dev/kernel/HALKit/AMD64/HalDescriptorLoader.cc +++ b/dev/kernel/HALKit/AMD64/HalDescriptorLoader.cc @@ -32,7 +32,7 @@ Void IDTLoader::Load(Register64& idt) { for (SizeT idt_indx = 0; idt_indx < kKernelIdtSize; ++idt_indx) { Detail::kInterruptVectorTable[idt_indx].Selector = kIDTSelector; Detail::kInterruptVectorTable[idt_indx].Ist = 0; - Detail::kInterruptVectorTable[idt_indx].TypeAttributes = kInterruptGate; + Detail::kInterruptVectorTable[idt_indx].TypeAttributes = kKernelInterruptId ? kUserInterruptGate : kInterruptGate; Detail::kInterruptVectorTable[idt_indx].OffsetLow = ((UIntPtr) ptr_ivt[idt_indx] & 0xFFFF); Detail::kInterruptVectorTable[idt_indx].OffsetMid = (((UIntPtr) ptr_ivt[idt_indx] >> 16) & 0xFFFF); diff --git a/dev/kernel/HALKit/AMD64/Processor.h b/dev/kernel/HALKit/AMD64/Processor.h index b6465941..99f857b1 100644 --- a/dev/kernel/HALKit/AMD64/Processor.h +++ b/dev/kernel/HALKit/AMD64/Processor.h @@ -47,6 +47,7 @@ #define IsLevelTriggered(FLG) (FLG & 8) #define kInterruptGate (0x8E) +#define kUserInterruptGate (0xEE) #define kTrapGate (0xEF) #define kTaskGate (0b10001100) #define kIDTSelector (0x08) -- cgit v1.2.3