From e551bcde3cf1bc06aba9ecac07604bdfa5970f03 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Tue, 16 Sep 2025 20:39:33 -0400
Subject: kern/amd64: proc: Store trapframe in PCB

Store a trapframe in the process control block so that state may be
saved and restored between contexts

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 src/sys/include/arch/amd64/pcb.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/sys/include/arch/amd64/pcb.h b/src/sys/include/arch/amd64/pcb.h
index 852e28d..068dddb 100644
--- a/src/sys/include/arch/amd64/pcb.h
+++ b/src/sys/include/arch/amd64/pcb.h
@@ -31,14 +31,17 @@
 #define _MACHINE_PCB_H_ 1
 
 #include <machine/vas.h>
+#include <machine/frame.h>
 
 /*
  * Represents MD specific process data
  *
  * @vas: Current virtual address space
+ * @tf: Processor state save
  */
 struct md_pcb {
     struct vm_vas vas;
+    struct trapframe tf;
 };
 
 #endif  /* _MACHINE_PCB_H_ */
-- 
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