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Ignore disabled local APICs.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23118 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Michael Lotz
2007-12-12 18:39:41 +00:00
parent d5f56f7d69
commit fd0986401e
2 changed files with 7 additions and 0 deletions
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headers/private/kernel/arch/x86/smp_acpi.h
+2
View File
@@ -9,6 +9,8 @@
#define ACPI_RSDT_SIGNATURE "RSDT" #define ACPI_RSDT_SIGNATURE "RSDT"
#define ACPI_MADT_SIGNATURE "APIC" #define ACPI_MADT_SIGNATURE "APIC"
#define ACPI_LOCAL_APIC_ENABLED 0x01
struct acpi_rsdp { struct acpi_rsdp {
char signature[8]; /* "RSD PTR " including blank */ char signature[8]; /* "RSD PTR " including blank */
uint8 checksum; /* checksum of bytes 0-19 (per ACPI 1.0) */ uint8 checksum; /* checksum of bytes 0-19 (per ACPI 1.0) */
src/system/boot/platform/bios_ia32/smp.cpp
+5
View File
@@ -280,6 +280,11 @@ smp_do_acpi_config(acpi_rsdp *rsdp)
acpi_local_apic *localApic = (acpi_local_apic *)apic; acpi_local_apic *localApic = (acpi_local_apic *)apic;
TRACE(("smp: found local APIC with id %u\n", localApic->apic_id)); TRACE(("smp: found local APIC with id %u\n", localApic->apic_id));
if ((localApic->flags & ACPI_LOCAL_APIC_ENABLED) == 0) {
TRACE(("smp: APIC is disabled and will not be used\n"));
break;
}
gKernelArgs.arch_args.cpu_apic_id[gKernelArgs.num_cpus] = localApic->apic_id; gKernelArgs.arch_args.cpu_apic_id[gKernelArgs.num_cpus] = localApic->apic_id;
gKernelArgs.arch_args.cpu_os_id[localApic->apic_id] = gKernelArgs.num_cpus; gKernelArgs.arch_args.cpu_os_id[localApic->apic_id] = gKernelArgs.num_cpus;
// ToDo: how to find out? putting 0x10 in to indicate a local apic // ToDo: how to find out? putting 0x10 in to indicate a local apic