From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 4 Mar 2015 18:22:23 +0000 (-0800)
Subject: 3.10-stable patches
X-Git-Tag: v3.10.71~8
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0af365b321bd185ae5ecb696298dc15491607192;p=thirdparty%2Fkernel%2Fstable-queue.git

3.10-stable patches

added patches:
	mips-export-fp-functions-used-by-lose_fpu-1-for-kvm.patch
---

diff --git a/queue-3.10/mips-export-fp-functions-used-by-lose_fpu-1-for-kvm.patch b/queue-3.10/mips-export-fp-functions-used-by-lose_fpu-1-for-kvm.patch
new file mode 100644
index 00000000000..a577681ff2d
--- /dev/null
+++ b/queue-3.10/mips-export-fp-functions-used-by-lose_fpu-1-for-kvm.patch
@@ -0,0 +1,55 @@
+From 3ce465e04bfd8de9956d515d6e9587faac3375dc Mon Sep 17 00:00:00 2001
+From: James Hogan <james.hogan@imgtec.com>
+Date: Tue, 10 Feb 2015 10:02:59 +0000
+Subject: MIPS: Export FP functions used by lose_fpu(1) for KVM
+
+From: James Hogan <james.hogan@imgtec.com>
+
+commit 3ce465e04bfd8de9956d515d6e9587faac3375dc upstream.
+
+Export the _save_fp asm function used by the lose_fpu(1) macro to GPL
+modules so that KVM can make use of it when it is built as a module.
+
+This fixes the following build error when CONFIG_KVM=m due to commit
+f798217dfd03 ("KVM: MIPS: Don't leak FPU/DSP to guest"):
+
+ERROR: "_save_fp" [arch/mips/kvm/kvm.ko] undefined!
+
+Signed-off-by: James Hogan <james.hogan@imgtec.com>
+Fixes: f798217dfd03 (KVM: MIPS: Don't leak FPU/DSP to guest)
+Cc: Paolo Bonzini <pbonzini@redhat.com>
+Cc: Ralf Baechle <ralf@linux-mips.org>
+Cc: Paul Burton <paul.burton@imgtec.com>
+Cc: Gleb Natapov <gleb@kernel.org>
+Cc: kvm@vger.kernel.org
+Cc: linux-mips@linux-mips.org
+Patchwork: https://patchwork.linux-mips.org/patch/9260/
+Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/mips/kernel/mips_ksyms.c |    6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/arch/mips/kernel/mips_ksyms.c
++++ b/arch/mips/kernel/mips_ksyms.c
+@@ -14,6 +14,7 @@
+ #include <linux/mm.h>
+ #include <asm/uaccess.h>
+ #include <asm/ftrace.h>
++#include <asm/fpu.h>
+ 
+ extern void *__bzero(void *__s, size_t __count);
+ extern long __strncpy_from_user_nocheck_asm(char *__to,
+@@ -26,6 +27,11 @@ extern long __strnlen_user_nocheck_asm(c
+ extern long __strnlen_user_asm(const char *s);
+ 
+ /*
++ * Core architecture code
++ */
++EXPORT_SYMBOL_GPL(_save_fp);
++
++/*
+  * String functions
+  */
+ EXPORT_SYMBOL(memset);
diff --git a/queue-3.10/series b/queue-3.10/series
index 811d4f3ee11..267fad85bf7 100644
--- a/queue-3.10/series
+++ b/queue-3.10/series
@@ -50,3 +50,4 @@ md-raid1-fix-read-balance-when-a-drive-is-write-mostly.patch
 jffs2-fix-handling-of-corrupted-summary-length.patch
 blk-throttle-check-stats_cpu-before-reading-it-from-sysfs.patch
 x86-mm-aslr-fix-stack-randomization-on-64-bit-systems.patch
+mips-export-fp-functions-used-by-lose_fpu-1-for-kvm.patch