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hw_x86_64: Make Idt member functions non-static

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Add appropriate Idt object to Genode::Cpu class. Update the hard-coded
TSS base address.
This commit is contained in:
Reto Buerki 2015-02-24 15:43:10 +01:00 committed by Christian Helmuth
parent e3332c6c53
commit d8a10448bb
4 changed files with 10 additions and 9 deletions
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7
repos/base-hw/src/core/include/spec/x86/cpu.h
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@ -37,17 +37,20 @@ namespace Kernel { using Genode::Cpu_lazy_state; }
class Genode::Cpu class Genode::Cpu
{ {
private:
Idt _idt;
public: public:
Cpu() Cpu()
{ {
/* Setup IDT only once */ /* Setup IDT only once */
if (primary_id() == executing_id()) { if (primary_id() == executing_id()) {
Idt::setup(); _idt.setup();
Tss::setup(); Tss::setup();
} }
Idt::load(); _idt.load();
Tss::load(); Tss::load();
} }

6
repos/base-hw/src/core/include/spec/x86_64/idt.h
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@ -37,19 +37,19 @@ class Genode::Idt
/** /**
* IDT table * IDT table
*/ */
static gate _table[]; __attribute__((aligned(8))) gate _table[SIZE_IDT];
public: public:
/** /**
* Setup IDT. * Setup IDT.
*/ */
static void setup(); void setup();
/** /**
* Load IDT into IDTR. * Load IDT into IDTR.
*/ */
static void load(); void load();
}; };
#endif /* _IDT_H_ */ #endif /* _IDT_H_ */

4
repos/base-hw/src/core/spec/x86_64/idt.cc
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@ -12,8 +12,6 @@ class Descriptor
Descriptor(uint16_t l, uint64_t b) : _limit(l), _base (b) {}; Descriptor(uint16_t l, uint64_t b) : _limit(l), _base (b) {};
} __attribute__((packed)); } __attribute__((packed));
__attribute__((aligned(8))) Idt::gate Idt::_table[SIZE_IDT];
void Idt::setup() void Idt::setup()
{ {
@ -38,6 +36,6 @@ void Idt::setup()
void Idt::load() void Idt::load()
{ {
asm volatile ("lidt %0" : : "m" (Descriptor (sizeof (_table) - 1, asm volatile ("lidt %0" : : "m" (Descriptor (sizeof(_table) - 1,
reinterpret_cast<uint64_t>(_table)))); reinterpret_cast<uint64_t>(_table))));
} }

2
repos/base-hw/src/core/spec/x86_64/kernel/crt0.s
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@ -170,7 +170,7 @@
/* GDTE_LONG | GDTE_PRESENT | GDTE_TYPE_DATA_A | GDTE_TYPE_DATA_W | GDTE_NON_SYSTEM */ /* GDTE_LONG | GDTE_PRESENT | GDTE_TYPE_DATA_A | GDTE_TYPE_DATA_W | GDTE_NON_SYSTEM */
.long 0x20f300 .long 0x20f300
/* Task segment descriptor */ /* Task segment descriptor */
.long 0x11000068 .long 0x01000068
/* GDTE_PRESENT | GDTE_SYS_TSS */ /* GDTE_PRESENT | GDTE_SYS_TSS */
.long 0x893a .long 0x893a
.long 0 .long 0