From d85ebff0073c783f0c74dc0e08c348f6f2d807c7 Mon Sep 17 00:00:00 2001 From: James Hogan Date: Mon, 4 Jul 2016 19:35:10 +0100 Subject: [PATCH] MIPS: KVM: Fix pre-r6 ll/sc instructions on r6 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The atomic KVM register access macros in kvm_host.h (for the guest Cause register with KVM in trap & emulate mode) use ll/sc instructions, however they still .set mips3, which causes pre-MIPSr6 instruction encodings to be emitted, even for a MIPSr6 build. Fix it to use MIPS_ISA_ARCH_LEVEL as other parts of arch/mips already do. Signed-off-by: James Hogan Cc: Paolo Bonzini Cc: Radim KrÄmář Cc: Ralf Baechle Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Signed-off-by: Paolo Bonzini --- arch/mips/include/asm/kvm_host.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h index b32785543787..b54bcadd8aec 100644 --- a/arch/mips/include/asm/kvm_host.h +++ b/arch/mips/include/asm/kvm_host.h @@ -400,7 +400,7 @@ static inline void _kvm_atomic_set_c0_guest_reg(unsigned long *reg, unsigned long temp; do { __asm__ __volatile__( - " .set mips3 \n" + " .set "MIPS_ISA_ARCH_LEVEL" \n" " " __LL "%0, %1 \n" " or %0, %2 \n" " " __SC "%0, %1 \n" @@ -416,7 +416,7 @@ static inline void _kvm_atomic_clear_c0_guest_reg(unsigned long *reg, unsigned long temp; do { __asm__ __volatile__( - " .set mips3 \n" + " .set "MIPS_ISA_ARCH_LEVEL" \n" " " __LL "%0, %1 \n" " and %0, %2 \n" " " __SC "%0, %1 \n" @@ -433,7 +433,7 @@ static inline void _kvm_atomic_change_c0_guest_reg(unsigned long *reg, unsigned long temp; do { __asm__ __volatile__( - " .set mips3 \n" + " .set "MIPS_ISA_ARCH_LEVEL" \n" " " __LL "%0, %1 \n" " and %0, %2 \n" " or %0, %3 \n" -- 2.20.1