diff options
Diffstat (limited to 'arch/x86')
-rw-r--r-- | arch/x86/kernel/apic/x2apic_phys.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c index e03a1e180e81..562a76d433c8 100644 --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c | |||
@@ -20,18 +20,19 @@ static int set_x2apic_phys_mode(char *arg) | |||
20 | } | 20 | } |
21 | early_param("x2apic_phys", set_x2apic_phys_mode); | 21 | early_param("x2apic_phys", set_x2apic_phys_mode); |
22 | 22 | ||
23 | static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) | 23 | static bool x2apic_fadt_phys(void) |
24 | { | 24 | { |
25 | if (x2apic_phys) | 25 | if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) && |
26 | return x2apic_enabled(); | 26 | (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL)) { |
27 | else if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) && | ||
28 | (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL) && | ||
29 | x2apic_enabled()) { | ||
30 | printk(KERN_DEBUG "System requires x2apic physical mode\n"); | 27 | printk(KERN_DEBUG "System requires x2apic physical mode\n"); |
31 | return 1; | 28 | return true; |
32 | } | 29 | } |
33 | else | 30 | return false; |
34 | return 0; | 31 | } |
32 | |||
33 | static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) | ||
34 | { | ||
35 | return x2apic_enabled() && (x2apic_phys || x2apic_fadt_phys()); | ||
35 | } | 36 | } |
36 | 37 | ||
37 | static void | 38 | static void |
@@ -82,7 +83,7 @@ static void init_x2apic_ldr(void) | |||
82 | 83 | ||
83 | static int x2apic_phys_probe(void) | 84 | static int x2apic_phys_probe(void) |
84 | { | 85 | { |
85 | if (x2apic_mode && x2apic_phys) | 86 | if (x2apic_mode && (x2apic_phys || x2apic_fadt_phys())) |
86 | return 1; | 87 | return 1; |
87 | 88 | ||
88 | return apic == &apic_x2apic_phys; | 89 | return apic == &apic_x2apic_phys; |