Patch "KPTI: Report when enabled" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

KPTI: Report when enabled

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
kpti-report-when-enabled.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Kees Cook <[email protected]>
Date: Wed, 3 Jan 2018 10:18:01 -0800
Subject: KPTI: Report when enabled
To: Greg KH <[email protected]>
Message-ID: <20180103181801.GA33383@beast>
Content-Disposition: inline

From: Kees Cook <[email protected]>

Make sure dmesg reports when KPTI is enabled.

---
 arch/x86/mm/kaiser.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

@@ -10,6 +10,9 @@
 #include <linux/mm.h>
 #include <linux/uaccess.h>
 
+#undef pr_fmt
+#define pr_fmt(fmt)     "Kernel/User page tables isolation: " fmt
+
 #include <asm/kaiser.h>
 #include <asm/tlbflush.h>	/* to verify its kaiser declarations */
 #include <asm/pgtable.h>

@@ -292,7 +295,7 @@ enable:
 	return;
 
 disable:
-	pr_info("Kernel/User page tables isolation: disabled\n");
+	pr_info("disabled\n");
 
 silent_disable:
 	kaiser_enabled = 0;

@@ -352,6 +355,8 @@ void __init kaiser_init(void)
 	kaiser_add_user_map_early(&debug_idt_table,
 				  sizeof(gate_desc) * NR_VECTORS,
 				  __PAGE_KERNEL);
+
+	pr_info("enabled\n");
 }
 
 /* Add a mapping to the shadow mapping, and synchronize the mappings */

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/kpti-rename-to-page_table_isolation.patch queue-4.9/kpti-report-when-enabled.patch