From 8b4e2a08febc8b957b44732dbc7da831479a0005 Mon Sep 17 00:00:00 2001
From: rtm <rtm>
Date: Sat, 1 Jul 2006 21:26:01 +0000
Subject: swtch saves callee-saved registers swtch idles on per-CPU stack, not
 on calling process's stack fix pipe bugs usertest.c tests pipes, fork, exit,
 close

---
 proc.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'proc.h')

diff --git a/proc.h b/proc.h
index 14164db..e371f7d 100644
--- a/proc.h
+++ b/proc.h
@@ -37,3 +37,14 @@ struct proc{
 
 extern struct proc proc[];
 extern struct proc *curproc[NCPU];
+
+#define MPSTACK 512
+
+struct cpu {
+  uint8_t apicid;       // Local APIC ID
+  int lintr[2];		// Local APIC
+  char mpstack[MPSTACK]; // per-cpu start-up stack, only used to get into main()
+};
+
+extern struct cpu cpus[NCPU];
+extern int ncpu;
-- 
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