---

yaml --- r: 32923 b: refs/heads/master c: 2a8a3d5 h: refs/heads/master i: 32921: bf4c194 32919: b5ce645 v: v3
git-mirror · Jul 31, 2006 · 1ef7809 · 1ef7809
1 parent 81e125a
commit 1ef7809
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Showing 3 changed files with 11 additions and 17 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c35a7261eaf0e57924e2c56c6d72dc44ee9f3634
+refs/heads/master: 2a8a3d5b65e86ec1dfef7d268c64a909eab94af7
diff --git a/trunk/arch/i386/kernel/machine_kexec.c b/trunk/arch/i386/kernel/machine_kexec.c
@@ -189,14 +189,11 @@ NORET_TYPE void machine_kexec(struct kimage *image)
 	memcpy((void *)reboot_code_buffer, relocate_new_kernel,
 						relocate_new_kernel_size);
 
-	/* The segment registers are funny things, they are
-	 * automatically loaded from a table, in memory wherever you
-	 * set them to a specific selector, but this table is never
-	 * accessed again you set the segment to a different selector.
-	 *
-	 * The more common model is are caches where the behide
-	 * the scenes work is done, but is also dropped at arbitrary
-	 * times.
+	/* The segment registers are funny things, they have both a
+	 * visible and an invisible part.  Whenever the visible part is
+	 * set to a specific selector, the invisible part is loaded
+	 * with from a table in memory.  At no other time is the
+	 * descriptor table in memory accessed.
 	 *
 	 * I take advantage of this here by force loading the
 	 * segments, before I zap the gdt with an invalid value.

diff --git a/trunk/arch/x86_64/kernel/machine_kexec.c b/trunk/arch/x86_64/kernel/machine_kexec.c
@@ -207,14 +207,11 @@ NORET_TYPE void machine_kexec(struct kimage *image)
 	__flush_tlb();
 
 
-	/* The segment registers are funny things, they are
-	 * automatically loaded from a table, in memory wherever you
-	 * set them to a specific selector, but this table is never
-	 * accessed again unless you set the segment to a different selector.
-	 *
-	 * The more common model are caches where the behide
-	 * the scenes work is done, but is also dropped at arbitrary
-	 * times.
+	/* The segment registers are funny things, they have both a
+	 * visible and an invisible part.  Whenever the visible part is
+	 * set to a specific selector, the invisible part is loaded
+	 * with from a table in memory.  At no other time is the
+	 * descriptor table in memory accessed.
 	 *
 	 * I take advantage of this here by force loading the
 	 * segments, before I zap the gdt with an invalid value.