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hw_x86_64: setup ISR and IDT

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* Add isr.s assembler file:
    The file declares an array of Interrupt Service Routines (ISR) to handle
    the exception vectors from 0 to 19, see Intel SDM Vol. 3A, section
    6.3.1.
* Add Idt class:
  * The class Genode::Idt represents an Interrupt Descriptor Table as
    specified by Intel SDM Vol. 3A, section 6.10.
  * The setup function initializes the IDT with 20 entries using the ISR
    array defined in the isr.s assembly file.
* Setup and load IDT in Genode::Cpu ctor:
    The Idt::setup function is only executed once on the BSP.
* Declare ISRs for interrupts 20-255
* Set IDT size to 256
This commit is contained in:
Reto Buerki
2015-02-13 11:16:51 +01:00
committed by Christian Helmuth
parent 6e0f1a4466
commit c7cadf52a6
5 changed files with 162 additions and 0 deletions
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repos/base-hw/lib/mk/x86_64/core.mk
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@ -12,9 +12,11 @@ INC_DIR += $(REP_DIR)/src/core/include/spec/x86_64
SRC_S += spec/x86_64/mode_transition.s
SRC_S += spec/x86_64/kernel/crt0.s
SRC_S += spec/x86_64/crt0.s
SRC_S += spec/x86_64/isr.s
# add C++ sources
SRC_CC += spec/x86_64/kernel/thread_base.cc
SRC_CC += spec/x86_64/idt.cc
# include less specific configuration
include $(REP_DIR)/lib/mk/x86/core.inc