- 2.6.17 port work build breaks, but the patch set is relativly stable

[linux-flexiantxendom0-3.2.10.git] / arch / i386 / kernel / acpi / boot.c

diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index cca437d..b4d90a9 100644 (file)
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -668,10 +668,10 @@ unsigned long __init acpi_find_rsdp(void)
        unsigned long rsdp_phys = 0;
 
        if (efi_enabled) {
-               if (efi.acpi20)
-                       return __pa(efi.acpi20);
-               else if (efi.acpi)
-                       return __pa(efi.acpi);
+               if (efi.acpi20 != EFI_INVALID_TABLE_ADDR)
+                       return efi.acpi20;
+               else if (efi.acpi != EFI_INVALID_TABLE_ADDR)
+                       return efi.acpi;
        }
        /*
         * Scan memory looking for the RSDP signature. First search EBDA (low
@@ -693,6 +693,9 @@ static int __init acpi_parse_madt_lapic_entries(void)
 {
        int count;
 
+       if (!cpu_has_apic)
+               return -ENODEV;
+
        /* 
         * Note that the LAPIC address is obtained from the MADT (32-bit value)
         * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value).
@@ -751,6 +754,9 @@ static int __init acpi_parse_madt_ioapic_entries(void)
                return -ENODEV;
        }
 
+       if (!cpu_has_apic)
+               return -ENODEV;
+
        if (!cpu_has_apic) 
                return -ENODEV;