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boot processor is always given by the Linux kernel

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=> remove "real" boot processor detection
This commit is contained in:
Stefan Lankes 2016-03-08 16:06:44 +01:00
parent 30475701df
commit a2c2e3a7be
1 changed files with 8 additions and 4 deletions
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12
hermit/arch/x86/kernel/apic.c
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@ -50,7 +50,7 @@ extern const void kernel_start;
#define IOAPIC_ADDR ((size_t) &kernel_start - 2*PAGE_SIZE)
#define LAPIC_ADDR ((size_t) &kernel_start - 1*PAGE_SIZE)
#define MAX_APIC_CORES 256
#define MAX_APIC_CORES 128
// IO APIC MMIO structure: write reg, then read or write data.
typedef struct {
@ -447,6 +447,8 @@ int apic_calibration(void)
flags = irq_nested_disable();
// currently, we ignore the IOAPIC => Linux maintain the IOAPICs
#if 0
if (ioapic) {
uint32_t max_entry = ioapic_max_redirection_entry();
@ -457,6 +459,7 @@ int apic_calibration(void)
// now, we don't longer need the IOAPIC timer and turn it off
ioapic_intoff(2, apic_processors[boot_processor]->id);
}
#endif
initialized = 1;
irq_nested_enable(flags);
@ -548,8 +551,6 @@ found_mp:
// is the processor usable?
if (cpu->cpu_flags & 0x01) {
apic_processors[j] = cpu;
if ((cpu->cpu_flags & 0x02) && (boot_processor < 0))
boot_processor = j;
j++;
}
}
@ -871,7 +872,10 @@ int apic_init(void)
#endif
irq_install_handler(81+32, apic_shutdown);
irq_install_handler(124, apic_lint0);
kprintf("Boot processor %u (ID %u)\n", boot_processor, apic_processors[boot_processor]->id);
if (apic_processors[boot_processor])
kprintf("Boot processor %u (ID %u)\n", boot_processor, apic_processors[boot_processor]->id);
else
kprintf("Boot processor %u\n", boot_processor);
online[boot_processor] = 1;
return 0;