This is a note to let you know that I've just added the patch titled MIPS: Export MSA functions used by lose_fpu(1) for KVM to the 3.18-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: mips-export-msa-functions-used-by-lose_fpu-1-for-kvm.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From ca5d25642e212f73492d332d95dc90ef46a0e8dc Mon Sep 17 00:00:00 2001 From: James Hogan <james.hogan@xxxxxxxxxx> Date: Tue, 10 Feb 2015 10:03:00 +0000 Subject: MIPS: Export MSA functions used by lose_fpu(1) for KVM From: James Hogan <james.hogan@xxxxxxxxxx> commit ca5d25642e212f73492d332d95dc90ef46a0e8dc upstream. Export the _save_msa 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 and CONFIG_CPU_HAS_MSA=y due to commit f798217dfd03 ("KVM: MIPS: Don't leak FPU/DSP to guest"): ERROR: "_save_msa" [arch/mips/kvm/kvm.ko] undefined! Fixes: f798217dfd03 (KVM: MIPS: Don't leak FPU/DSP to guest) Signed-off-by: James Hogan <james.hogan@xxxxxxxxxx> Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx> Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: Paul Burton <paul.burton@xxxxxxxxxx> Cc: Gleb Natapov <gleb@xxxxxxxxxx> Cc: kvm@xxxxxxxxxxxxxxx Cc: linux-mips@xxxxxxxxxxxxxx Patchwork: https://patchwork.linux-mips.org/patch/9261/ Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/mips/kernel/mips_ksyms.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/arch/mips/kernel/mips_ksyms.c +++ b/arch/mips/kernel/mips_ksyms.c @@ -15,6 +15,7 @@ #include <asm/uaccess.h> #include <asm/ftrace.h> #include <asm/fpu.h> +#include <asm/msa.h> extern void *__bzero(void *__s, size_t __count); extern long __strncpy_from_kernel_nocheck_asm(char *__to, @@ -38,6 +39,9 @@ extern long __strnlen_user_asm(const cha * Core architecture code */ EXPORT_SYMBOL_GPL(_save_fp); +#ifdef CONFIG_CPU_HAS_MSA +EXPORT_SYMBOL_GPL(_save_msa); +#endif /* * String functions Patches currently in stable-queue which might be from james.hogan@xxxxxxxxxx are queue-3.18/kvm-mips-disable-htw-while-in-guest.patch queue-3.18/kvm-mips-don-t-leak-fpu-dsp-to-guest.patch queue-3.18/mips-export-msa-functions-used-by-lose_fpu-1-for-kvm.patch queue-3.18/mm-hugetlb-pmd_huge-returns-true-for-non-present-hugepage.patch queue-3.18/mips-export-fp-functions-used-by-lose_fpu-1-for-kvm.patch queue-3.18/rc-main-re-apply-filter-for-no-op-protocol-change.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html