From: Matthew Dillon <dillon@apollo.backplane.com>
Date: Mon, 27 Mar 2017 06:40:20 +0000 (-0700)
Subject: kernel - Add GD_IRESERVED access to assembly
X-Git-Tag: v5.1.0~726
X-Git-Url: https://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/30c6fbb5c6965c273c2838b3da483b7efc1cd14e

kernel - Add GD_IRESERVED access to assembly

* Useful for debugging.  No use-cases committed.
---

diff --git a/sys/platform/pc64/x86_64/genassym.c b/sys/platform/pc64/x86_64/genassym.c
index 3ae63c85d1..0ae3f04d0c 100644
--- a/sys/platform/pc64/x86_64/genassym.c
+++ b/sys/platform/pc64/x86_64/genassym.c
@@ -113,6 +113,7 @@ ASSYM(GD_SAMPLE_PC, offsetof(struct mdglobaldata, mi.gd_sample_pc));
 ASSYM(GD_SAMPLE_SP, offsetof(struct mdglobaldata, mi.gd_sample_sp));
 ASSYM(GD_CPUMASK_SIMPLE, offsetof(struct mdglobaldata, mi.gd_cpumask_simple));
 ASSYM(GD_CPUMASK_OFFSET, offsetof(struct mdglobaldata, mi.gd_cpumask_offset));
+ASSYM(GD_IRESERVED, offsetof(struct mdglobaldata, mi.gd_ireserved[0]));
 
 ASSYM(PCB_CR3, offsetof(struct pcb, pcb_cr3));
 ASSYM(PCB_R15, offsetof(struct pcb, pcb_r15));
diff --git a/sys/platform/pc64/x86_64/global.s b/sys/platform/pc64/x86_64/global.s
index 1b2b9f1b31..ce612a5490 100644
--- a/sys/platform/pc64/x86_64/global.s
+++ b/sys/platform/pc64/x86_64/global.s
@@ -66,6 +66,9 @@
 	.set	gd_fpu_lock, globaldata + GD_FPU_LOCK
 	.set	gd_savefpu, globaldata + GD_SAVEFPU
 
+	.globl	gd_ireserved
+	.set	gd_ireserved, globaldata + GD_IRESERVED
+
 	/*
 	 * The BSP version of these get setup in locore.s and pmap.c, while
 	 * the AP versions are setup in mp_machdep.c.