[PATCH gnumach] acpi_parse_apic: Check CAPABLE bit field on lapic MADT flag

[Damien Zammit]

Previously, we were ignoring cpus that were not enabled
but online-capable.
---
 i386/i386at/acpi_parse_apic.c | 2 +-
 i386/i386at/acpi_parse_apic.h | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/i386/i386at/acpi_parse_apic.c b/i386/i386at/acpi_parse_apic.c
index 24470426..ae92ee2e 100644
--- a/i386/i386at/acpi_parse_apic.c
+++ b/i386/i386at/acpi_parse_apic.c
@@ -376,7 +376,7 @@ static void
 acpi_apic_add_lapic(struct acpi_apic_lapic *lapic_entry)
 {
     /* If cpu flag is correct */
-    if (lapic_entry->flags & 0x1) {
+    if (lapic_entry->flags & (ACPI_LAPIC_FLAG_ENABLED | 
ACPI_LAPIC_FLAG_CAPABLE)) {
         /* Add cpu to processors' list. */
         apic_add_cpu(lapic_entry->apic_id);
     }
diff --git a/i386/i386at/acpi_parse_apic.h b/i386/i386at/acpi_parse_apic.h
index 85e01170..df8d4bae 100644
--- a/i386/i386at/acpi_parse_apic.h
+++ b/i386/i386at/acpi_parse_apic.h
@@ -149,6 +149,8 @@ struct acpi_apic_lapic {
     uint32_t    flags;
 } __attribute__((__packed__));
 
+#define ACPI_LAPIC_FLAG_ENABLED        (1 << 0)
+#define ACPI_LAPIC_FLAG_CAPABLE        (1 << 1)
 
 /*
  * I/O APIC Structure
-- 
2.45.2