From 264c986155287ce68e5afdf3bd8ff7ba7c1814cc Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Sun, 14 Sep 2025 17:35:04 -0400
Subject: kern/amd64: cpu: Add routine to get current core

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 src/sys/include/sys/cpuvar.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/sys/include')

diff --git a/src/sys/include/sys/cpuvar.h b/src/sys/include/sys/cpuvar.h
index f208f82..b5ff31b 100644
--- a/src/sys/include/sys/cpuvar.h
+++ b/src/sys/include/sys/cpuvar.h
@@ -42,12 +42,14 @@
  *
  * @id: Monotonic logical ID
  * @md: Machine dependent processor information
+ * @self: Chain pointer to self
  */
 struct pcore {
     uint32_t id;
 #if defined(_KERNEL)
     struct mdcore md;
 #endif  /* _KERNEL */
+    struct pcore *self;
 };
 
 #if defined(_KERNEL)
@@ -59,5 +61,13 @@ struct pcore {
  * @pcore: Core to configure
  */
 void cpu_conf(struct pcore *pcore);
+
+/*
+ * Get the current processing element (core) as
+ * a 'pcore' descriptor.
+ *
+ * Returns NULL on failure.
+ */
+struct pcore *this_core(void);
 #endif  /* _KERNEL */
 #endif  /* !_SYS_CPUVAR_H_ */
-- 
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