diff options
| author | Steve French <sfrench@us.ibm.com> | 2012-01-13 23:59:13 -0600 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2012-01-13 23:59:13 -0600 |
| commit | dcd169b761d52e3f9122e30442b83863bdf1d9d9 (patch) | |
| tree | 5e79741f1865a3aef840e68d7db9e7ed4d685b5a /arch/x86/kernel/acpi/boot.c | |
| parent | aaf015890754d58dcb71a4aa44ed246bb082bcf6 (diff) | |
| parent | 7250170c9ed00f3b74b11b98afefab45020672dd (diff) | |
Merge branch 'master' of git+ssh://git.samba.org/data/git/sfrench/cifs-2.6
Diffstat (limited to 'arch/x86/kernel/acpi/boot.c')
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 4558f0d0822d..ce664f33ea8e 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -219,6 +219,8 @@ static int __init acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end) { struct acpi_madt_local_x2apic *processor = NULL; + int apic_id; + u8 enabled; processor = (struct acpi_madt_local_x2apic *)header; @@ -227,6 +229,8 @@ acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end) acpi_table_print_madt_entry(header); + apic_id = processor->local_apic_id; + enabled = processor->lapic_flags & ACPI_MADT_ENABLED; #ifdef CONFIG_X86_X2APIC /* * We need to register disabled CPU as well to permit @@ -235,8 +239,10 @@ acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end) * to not preallocating memory for all NR_CPUS * when we use CPU hotplug. */ - acpi_register_lapic(processor->local_apic_id, /* APIC ID */ - processor->lapic_flags & ACPI_MADT_ENABLED); + if (!cpu_has_x2apic && (apic_id >= 0xff) && enabled) + printk(KERN_WARNING PREFIX "x2apic entry ignored\n"); + else + acpi_register_lapic(apic_id, enabled); #else printk(KERN_WARNING PREFIX "x2apic entry ignored\n"); #endif |