From: Trammell Hudson <thudson@newskysaw.eecs.northwestern.edu>
Date: Wed, 22 Oct 2008 15:35:41 +0000 (-0500)
Subject: Fake IOAPIC address if there is no mptable found
X-Git-Tag: 1.0^2~15
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=commitdiff_plain;h=be0a259375ebcfe92ab248f37ed2fee7ccb04062

Fake IOAPIC address if there is no mptable found
---

diff --git a/kitten/arch/x86_64/kernel/ioapic.c b/kitten/arch/x86_64/kernel/ioapic.c
index 6c5fc98..bf38e20 100644
--- a/kitten/arch/x86_64/kernel/ioapic.c
+++ b/kitten/arch/x86_64/kernel/ioapic.c
@@ -26,13 +26,13 @@ unsigned int ioapic_num;
  * Array containing the IDs of the IO APICs in the system.
  * The array is indexed by ioapic_index.
  */
-unsigned int ioapic_id[MAX_IO_APICS];
+unsigned int ioapic_id[MAX_IO_APICS] = { 1 };
 
 /**
  * Addresses of the IO APICs in the system.
  * The array is indexed by ioapic_index.
  */
-unsigned long ioapic_phys_addr[MAX_IO_APICS];
+uintptr_t ioapic_phys_addr[MAX_IO_APICS] = { 0xFEC00000 };
 
 /**
  * Resource entries for the IO APIC memory mapping.
@@ -250,7 +250,10 @@ ioapic_map(void)
 	char *name;
 
 	if (ioapic_num == 0)
-		return;
+	{
+		printk( "%s: Faking IO APIC\n", __func__ );
+		ioapic_num = 1;
+	}
 
 	/*
 	 * Allocate enough memory for one resource structure per detected IO