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Commit 31cf7498 authored by James Hogan's avatar James Hogan Committed by Paolo Bonzini
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MIPS: KVM: Make various Cause variables 32-bit 



The CP0 Cause register is passed around in KVM quite a bit, often as an
unsigned long, even though it is always 32-bits long.

Resize it to u32 throughout MIPS KVM.

Signed-off-by: default avatarJames Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 8cffd197

arch/mips/include/asm/kvm_host.h

+20 −20
Original line number Diff line number Diff line
@@ -344,8 +344,8 @@ struct kvm_vcpu_arch { 


	/* Host CP0 registers used when handling exits from guest */

	unsigned long host_cp0_badvaddr;

	unsigned long host_cp0_cause;

	unsigned long host_cp0_epc;

	u32 host_cp0_cause;



	/* GPRS */

	unsigned long gprs[32];
@@ -386,7 +386,7 @@ struct kvm_vcpu_arch { 
	/* Bitmask of pending exceptions to be cleared */

	unsigned long pending_exceptions_clr;



	unsigned long pending_load_cause;

	u32 pending_load_cause;



	/* Save/Restore the entryhi register when are are preempted/scheduled back in */

	unsigned long preempt_entryhi;
@@ -637,12 +637,12 @@ extern int kvm_mips_handle_mapped_seg_tlb_fault(struct kvm_vcpu *vcpu, 
						unsigned long *hpa0,

						unsigned long *hpa1);



extern enum emulation_result kvm_mips_handle_tlbmiss(unsigned long cause,

extern enum emulation_result kvm_mips_handle_tlbmiss(u32 cause,

						     u32 *opc,

						     struct kvm_run *run,

						     struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_handle_tlbmod(unsigned long cause,

extern enum emulation_result kvm_mips_handle_tlbmod(u32 cause,

						    u32 *opc,

						    struct kvm_run *run,

						    struct kvm_vcpu *vcpu);
@@ -668,77 +668,77 @@ extern void kvm_mips_vcpu_put(struct kvm_vcpu *vcpu); 
u32 kvm_get_inst(u32 *opc, struct kvm_vcpu *vcpu);

enum emulation_result update_pc(struct kvm_vcpu *vcpu, u32 cause);



extern enum emulation_result kvm_mips_emulate_inst(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_inst(u32 cause,

						   u32 *opc,

						   struct kvm_run *run,

						   struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_syscall(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_syscall(u32 cause,

						      u32 *opc,

						      struct kvm_run *run,

						      struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_tlbmiss_ld(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_tlbmiss_ld(u32 cause,

							 u32 *opc,

							 struct kvm_run *run,

							 struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_tlbinv_ld(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_tlbinv_ld(u32 cause,

							u32 *opc,

							struct kvm_run *run,

							struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_tlbmiss_st(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_tlbmiss_st(u32 cause,

							 u32 *opc,

							 struct kvm_run *run,

							 struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_tlbinv_st(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_tlbinv_st(u32 cause,

							u32 *opc,

							struct kvm_run *run,

							struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_tlbmod(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_tlbmod(u32 cause,

						     u32 *opc,

						     struct kvm_run *run,

						     struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_fpu_exc(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_fpu_exc(u32 cause,

						      u32 *opc,

						      struct kvm_run *run,

						      struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_handle_ri(unsigned long cause,

extern enum emulation_result kvm_mips_handle_ri(u32 cause,

						u32 *opc,

						struct kvm_run *run,

						struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_ri_exc(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_ri_exc(u32 cause,

						     u32 *opc,

						     struct kvm_run *run,

						     struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_bp_exc(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_bp_exc(u32 cause,

						     u32 *opc,

						     struct kvm_run *run,

						     struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_trap_exc(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_trap_exc(u32 cause,

						       u32 *opc,

						       struct kvm_run *run,

						       struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_msafpe_exc(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_msafpe_exc(u32 cause,

							 u32 *opc,

							 struct kvm_run *run,

							 struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_fpe_exc(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_fpe_exc(u32 cause,

						      u32 *opc,

						      struct kvm_run *run,

						      struct kvm_vcpu *vcpu);



extern enum emulation_result kvm_mips_emulate_msadis_exc(unsigned long cause,

extern enum emulation_result kvm_mips_emulate_msadis_exc(u32 cause,

							 u32 *opc,

							 struct kvm_run *run,

							 struct kvm_vcpu *vcpu);
@@ -757,7 +757,7 @@ void kvm_mips_count_enable_cause(struct kvm_vcpu *vcpu); 
void kvm_mips_count_disable_cause(struct kvm_vcpu *vcpu);

enum hrtimer_restart kvm_mips_count_timeout(struct kvm_vcpu *vcpu);



enum emulation_result kvm_mips_check_privilege(unsigned long cause,

enum emulation_result kvm_mips_check_privilege(u32 cause,

					       u32 *opc,

					       struct kvm_run *run,

					       struct kvm_vcpu *vcpu);

arch/mips/kvm/emulate.c

+19 −19
Original line number Diff line number Diff line
@@ -1688,7 +1688,7 @@ enum emulation_result kvm_mips_emulate_cache(u32 inst, u32 *opc, 
	return er;

}



enum emulation_result kvm_mips_emulate_inst(unsigned long cause, u32 *opc,

enum emulation_result kvm_mips_emulate_inst(u32 cause, u32 *opc,

					    struct kvm_run *run,

					    struct kvm_vcpu *vcpu)

{
@@ -1735,7 +1735,7 @@ enum emulation_result kvm_mips_emulate_inst(unsigned long cause, u32 *opc, 
	return er;

}



enum emulation_result kvm_mips_emulate_syscall(unsigned long cause,

enum emulation_result kvm_mips_emulate_syscall(u32 cause,

					       u32 *opc,

					       struct kvm_run *run,

					       struct kvm_vcpu *vcpu)
@@ -1770,7 +1770,7 @@ enum emulation_result kvm_mips_emulate_syscall(unsigned long cause, 
	return er;

}



enum emulation_result kvm_mips_emulate_tlbmiss_ld(unsigned long cause,

enum emulation_result kvm_mips_emulate_tlbmiss_ld(u32 cause,

						  u32 *opc,

						  struct kvm_run *run,

						  struct kvm_vcpu *vcpu)
@@ -1816,7 +1816,7 @@ enum emulation_result kvm_mips_emulate_tlbmiss_ld(unsigned long cause, 
	return EMULATE_DONE;

}



enum emulation_result kvm_mips_emulate_tlbinv_ld(unsigned long cause,

enum emulation_result kvm_mips_emulate_tlbinv_ld(u32 cause,

						 u32 *opc,

						 struct kvm_run *run,

						 struct kvm_vcpu *vcpu)
@@ -1862,7 +1862,7 @@ enum emulation_result kvm_mips_emulate_tlbinv_ld(unsigned long cause, 
	return EMULATE_DONE;

}



enum emulation_result kvm_mips_emulate_tlbmiss_st(unsigned long cause,

enum emulation_result kvm_mips_emulate_tlbmiss_st(u32 cause,

						  u32 *opc,

						  struct kvm_run *run,

						  struct kvm_vcpu *vcpu)
@@ -1906,7 +1906,7 @@ enum emulation_result kvm_mips_emulate_tlbmiss_st(unsigned long cause, 
	return EMULATE_DONE;

}



enum emulation_result kvm_mips_emulate_tlbinv_st(unsigned long cause,

enum emulation_result kvm_mips_emulate_tlbinv_st(u32 cause,

						 u32 *opc,

						 struct kvm_run *run,

						 struct kvm_vcpu *vcpu)
@@ -1951,7 +1951,7 @@ enum emulation_result kvm_mips_emulate_tlbinv_st(unsigned long cause, 
}



/* TLBMOD: store into address matching TLB with Dirty bit off */

enum emulation_result kvm_mips_handle_tlbmod(unsigned long cause, u32 *opc,

enum emulation_result kvm_mips_handle_tlbmod(u32 cause, u32 *opc,

					     struct kvm_run *run,

					     struct kvm_vcpu *vcpu)

{
@@ -1979,7 +1979,7 @@ enum emulation_result kvm_mips_handle_tlbmod(unsigned long cause, u32 *opc, 
	return er;

}



enum emulation_result kvm_mips_emulate_tlbmod(unsigned long cause,

enum emulation_result kvm_mips_emulate_tlbmod(u32 cause,

					      u32 *opc,

					      struct kvm_run *run,

					      struct kvm_vcpu *vcpu)
@@ -2022,7 +2022,7 @@ enum emulation_result kvm_mips_emulate_tlbmod(unsigned long cause, 
	return EMULATE_DONE;

}



enum emulation_result kvm_mips_emulate_fpu_exc(unsigned long cause,

enum emulation_result kvm_mips_emulate_fpu_exc(u32 cause,

					       u32 *opc,

					       struct kvm_run *run,

					       struct kvm_vcpu *vcpu)
@@ -2051,7 +2051,7 @@ enum emulation_result kvm_mips_emulate_fpu_exc(unsigned long cause, 
	return EMULATE_DONE;

}



enum emulation_result kvm_mips_emulate_ri_exc(unsigned long cause,

enum emulation_result kvm_mips_emulate_ri_exc(u32 cause,

					      u32 *opc,

					      struct kvm_run *run,

					      struct kvm_vcpu *vcpu)
@@ -2086,7 +2086,7 @@ enum emulation_result kvm_mips_emulate_ri_exc(unsigned long cause, 
	return er;

}



enum emulation_result kvm_mips_emulate_bp_exc(unsigned long cause,

enum emulation_result kvm_mips_emulate_bp_exc(u32 cause,

					      u32 *opc,

					      struct kvm_run *run,

					      struct kvm_vcpu *vcpu)
@@ -2121,7 +2121,7 @@ enum emulation_result kvm_mips_emulate_bp_exc(unsigned long cause, 
	return er;

}



enum emulation_result kvm_mips_emulate_trap_exc(unsigned long cause,

enum emulation_result kvm_mips_emulate_trap_exc(u32 cause,

						u32 *opc,

						struct kvm_run *run,

						struct kvm_vcpu *vcpu)
@@ -2156,7 +2156,7 @@ enum emulation_result kvm_mips_emulate_trap_exc(unsigned long cause, 
	return er;

}



enum emulation_result kvm_mips_emulate_msafpe_exc(unsigned long cause,

enum emulation_result kvm_mips_emulate_msafpe_exc(u32 cause,

						  u32 *opc,

						  struct kvm_run *run,

						  struct kvm_vcpu *vcpu)
@@ -2191,7 +2191,7 @@ enum emulation_result kvm_mips_emulate_msafpe_exc(unsigned long cause, 
	return er;

}



enum emulation_result kvm_mips_emulate_fpe_exc(unsigned long cause,

enum emulation_result kvm_mips_emulate_fpe_exc(u32 cause,

					       u32 *opc,

					       struct kvm_run *run,

					       struct kvm_vcpu *vcpu)
@@ -2226,7 +2226,7 @@ enum emulation_result kvm_mips_emulate_fpe_exc(unsigned long cause, 
	return er;

}



enum emulation_result kvm_mips_emulate_msadis_exc(unsigned long cause,

enum emulation_result kvm_mips_emulate_msadis_exc(u32 cause,

						  u32 *opc,

						  struct kvm_run *run,

						  struct kvm_vcpu *vcpu)
@@ -2276,7 +2276,7 @@ enum emulation_result kvm_mips_emulate_msadis_exc(unsigned long cause, 
#define SYNC   0x0000000f

#define RDHWR  0x0000003b



enum emulation_result kvm_mips_handle_ri(unsigned long cause, u32 *opc,

enum emulation_result kvm_mips_handle_ri(u32 cause, u32 *opc,

					 struct kvm_run *run,

					 struct kvm_vcpu *vcpu)

{
@@ -2406,7 +2406,7 @@ enum emulation_result kvm_mips_complete_mmio_load(struct kvm_vcpu *vcpu, 
	return er;

}



static enum emulation_result kvm_mips_emulate_exc(unsigned long cause,

static enum emulation_result kvm_mips_emulate_exc(u32 cause,

						  u32 *opc,

						  struct kvm_run *run,

						  struct kvm_vcpu *vcpu)
@@ -2444,7 +2444,7 @@ static enum emulation_result kvm_mips_emulate_exc(unsigned long cause, 
	return er;

}



enum emulation_result kvm_mips_check_privilege(unsigned long cause,

enum emulation_result kvm_mips_check_privilege(u32 cause,

					       u32 *opc,

					       struct kvm_run *run,

					       struct kvm_vcpu *vcpu)
@@ -2540,7 +2540,7 @@ enum emulation_result kvm_mips_check_privilege(unsigned long cause, 
 * (2) TLB entry is present in the Guest TLB but not in the shadow, in this

 *     case we inject the TLB from the Guest TLB into the shadow host TLB

 */

enum emulation_result kvm_mips_handle_tlbmiss(unsigned long cause,

enum emulation_result kvm_mips_handle_tlbmiss(u32 cause,

					      u32 *opc,

					      struct kvm_run *run,

					      struct kvm_vcpu *vcpu)

arch/mips/kvm/locore.S

+1 −1
Original line number Diff line number Diff line
@@ -306,7 +306,7 @@ NESTED (MIPSX(GuestException), CALLFRAME_SIZ, ra) 
	LONG_S	k0, VCPU_HOST_CP0_BADVADDR(k1)



	mfc0	k0, CP0_CAUSE

	LONG_S	k0, VCPU_HOST_CP0_CAUSE(k1)

	sw	k0, VCPU_HOST_CP0_CAUSE(k1)



	/* Now restore the host state just enough to run the handlers */

arch/mips/kvm/trap_emul.c

+21 −21
Original line number Diff line number Diff line
@@ -41,7 +41,7 @@ static int kvm_trap_emul_handle_cop_unusable(struct kvm_vcpu *vcpu) 
	struct mips_coproc *cop0 = vcpu->arch.cop0;

	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *) vcpu->arch.pc;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;
@@ -89,13 +89,13 @@ static int kvm_trap_emul_handle_tlb_mod(struct kvm_vcpu *vcpu) 
	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *) vcpu->arch.pc;

	unsigned long badvaddr = vcpu->arch.host_cp0_badvaddr;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;



	if (KVM_GUEST_KSEGX(badvaddr) < KVM_GUEST_KSEG0

	    || KVM_GUEST_KSEGX(badvaddr) == KVM_GUEST_KSEG23) {

		kvm_debug("USER/KSEG23 ADDR TLB MOD fault: cause %#lx, PC: %p, BadVaddr: %#lx\n",

		kvm_debug("USER/KSEG23 ADDR TLB MOD fault: cause %#x, PC: %p, BadVaddr: %#lx\n",

			  cause, opc, badvaddr);

		er = kvm_mips_handle_tlbmod(cause, opc, run, vcpu);
@@ -111,14 +111,14 @@ static int kvm_trap_emul_handle_tlb_mod(struct kvm_vcpu *vcpu) 
		 * when we are not using HIGHMEM. Need to address this in a

		 * HIGHMEM kernel

		 */

		kvm_err("TLB MOD fault not handled, cause %#lx, PC: %p, BadVaddr: %#lx\n",

		kvm_err("TLB MOD fault not handled, cause %#x, PC: %p, BadVaddr: %#lx\n",

			cause, opc, badvaddr);

		kvm_mips_dump_host_tlbs();

		kvm_arch_vcpu_dump_regs(vcpu);

		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;

		ret = RESUME_HOST;

	} else {

		kvm_err("Illegal TLB Mod fault address , cause %#lx, PC: %p, BadVaddr: %#lx\n",

		kvm_err("Illegal TLB Mod fault address , cause %#x, PC: %p, BadVaddr: %#lx\n",

			cause, opc, badvaddr);

		kvm_mips_dump_host_tlbs();

		kvm_arch_vcpu_dump_regs(vcpu);
@@ -133,7 +133,7 @@ static int kvm_trap_emul_handle_tlb_st_miss(struct kvm_vcpu *vcpu) 
	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *) vcpu->arch.pc;

	unsigned long badvaddr = vcpu->arch.host_cp0_badvaddr;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;
@@ -145,7 +145,7 @@ static int kvm_trap_emul_handle_tlb_st_miss(struct kvm_vcpu *vcpu) 
		}

	} else if (KVM_GUEST_KSEGX(badvaddr) < KVM_GUEST_KSEG0

		   || KVM_GUEST_KSEGX(badvaddr) == KVM_GUEST_KSEG23) {

		kvm_debug("USER ADDR TLB LD fault: cause %#lx, PC: %p, BadVaddr: %#lx\n",

		kvm_debug("USER ADDR TLB LD fault: cause %#x, PC: %p, BadVaddr: %#lx\n",

			  cause, opc, badvaddr);

		er = kvm_mips_handle_tlbmiss(cause, opc, run, vcpu);

		if (er == EMULATE_DONE)
@@ -165,7 +165,7 @@ static int kvm_trap_emul_handle_tlb_st_miss(struct kvm_vcpu *vcpu) 
			ret = RESUME_HOST;

		}

	} else {

		kvm_err("Illegal TLB LD fault address , cause %#lx, PC: %p, BadVaddr: %#lx\n",

		kvm_err("Illegal TLB LD fault address , cause %#x, PC: %p, BadVaddr: %#lx\n",

			cause, opc, badvaddr);

		kvm_mips_dump_host_tlbs();

		kvm_arch_vcpu_dump_regs(vcpu);
@@ -180,7 +180,7 @@ static int kvm_trap_emul_handle_tlb_ld_miss(struct kvm_vcpu *vcpu) 
	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *) vcpu->arch.pc;

	unsigned long badvaddr = vcpu->arch.host_cp0_badvaddr;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;
@@ -219,7 +219,7 @@ static int kvm_trap_emul_handle_tlb_ld_miss(struct kvm_vcpu *vcpu) 
			ret = RESUME_HOST;

		}

	} else {

		kvm_err("Illegal TLB ST fault address , cause %#lx, PC: %p, BadVaddr: %#lx\n",

		kvm_err("Illegal TLB ST fault address , cause %#x, PC: %p, BadVaddr: %#lx\n",

			cause, opc, badvaddr);

		kvm_mips_dump_host_tlbs();

		kvm_arch_vcpu_dump_regs(vcpu);
@@ -234,7 +234,7 @@ static int kvm_trap_emul_handle_addr_err_st(struct kvm_vcpu *vcpu) 
	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *) vcpu->arch.pc;

	unsigned long badvaddr = vcpu->arch.host_cp0_badvaddr;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;
@@ -251,7 +251,7 @@ static int kvm_trap_emul_handle_addr_err_st(struct kvm_vcpu *vcpu) 
			ret = RESUME_HOST;

		}

	} else {

		kvm_err("Address Error (STORE): cause %#lx, PC: %p, BadVaddr: %#lx\n",

		kvm_err("Address Error (STORE): cause %#x, PC: %p, BadVaddr: %#lx\n",

			cause, opc, badvaddr);

		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;

		ret = RESUME_HOST;
@@ -264,7 +264,7 @@ static int kvm_trap_emul_handle_addr_err_ld(struct kvm_vcpu *vcpu) 
	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *) vcpu->arch.pc;

	unsigned long badvaddr = vcpu->arch.host_cp0_badvaddr;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;
@@ -280,7 +280,7 @@ static int kvm_trap_emul_handle_addr_err_ld(struct kvm_vcpu *vcpu) 
			ret = RESUME_HOST;

		}

	} else {

		kvm_err("Address Error (LOAD): cause %#lx, PC: %p, BadVaddr: %#lx\n",

		kvm_err("Address Error (LOAD): cause %#x, PC: %p, BadVaddr: %#lx\n",

			cause, opc, badvaddr);

		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;

		ret = RESUME_HOST;
@@ -293,7 +293,7 @@ static int kvm_trap_emul_handle_syscall(struct kvm_vcpu *vcpu) 
{

	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *) vcpu->arch.pc;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;
@@ -311,7 +311,7 @@ static int kvm_trap_emul_handle_res_inst(struct kvm_vcpu *vcpu) 
{

	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *) vcpu->arch.pc;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;
@@ -329,7 +329,7 @@ static int kvm_trap_emul_handle_break(struct kvm_vcpu *vcpu) 
{

	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *) vcpu->arch.pc;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;
@@ -347,7 +347,7 @@ static int kvm_trap_emul_handle_trap(struct kvm_vcpu *vcpu) 
{

	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *)vcpu->arch.pc;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;
@@ -365,7 +365,7 @@ static int kvm_trap_emul_handle_msa_fpe(struct kvm_vcpu *vcpu) 
{

	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *)vcpu->arch.pc;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;
@@ -383,7 +383,7 @@ static int kvm_trap_emul_handle_fpe(struct kvm_vcpu *vcpu) 
{

	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *)vcpu->arch.pc;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;
@@ -408,7 +408,7 @@ static int kvm_trap_emul_handle_msa_disabled(struct kvm_vcpu *vcpu) 
	struct mips_coproc *cop0 = vcpu->arch.cop0;

	struct kvm_run *run = vcpu->run;

	u32 __user *opc = (u32 __user *) vcpu->arch.pc;

	unsigned long cause = vcpu->arch.host_cp0_cause;

	u32 cause = vcpu->arch.host_cp0_cause;

	enum emulation_result er = EMULATE_DONE;

	int ret = RESUME_GUEST;