KVM: MIPS: clean up redundant 'kvm_run' parameters

In the current kvm version, 'kvm_run' has been included in the 'kvm_vcpu'
structure. For historical reasons, many kvm-related function parameters
retain the 'kvm_run' and 'kvm_vcpu' parameters at the same time. This
patch does a unified cleanup of these remaining redundant parameters.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Reviewed-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <20200623131418.31473-5-tianjia.zhang@linux.alibaba.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

4 files changed, 84 insertions, 126 deletions

diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c
index d3d322f70fe0..3221193c7371 100644
--- a/arch/mips/kvm/emulate.c
+++ b/arch/mips/kvm/emulate.c
@@ -1262,7 +1262,6 @@ unsigned int kvm_mips_config5_wrmask(struct kvm_vcpu *vcpu)
 
 enum emulation_result kvm_mips_emulate_CP0(union mips_instruction inst,
 					   u32 *opc, u32 cause,
-					   struct kvm_run *run,
 					   struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -1597,12 +1596,12 @@ dont_update_pc:
 
 enum emulation_result kvm_mips_emulate_store(union mips_instruction inst,
 					     u32 cause,
-					     struct kvm_run *run,
 					     struct kvm_vcpu *vcpu)
 {
 	int r;
 	enum emulation_result er;
 	u32 rt;
+	struct kvm_run *run = vcpu->run;
 	void *data = run->mmio.data;
 	unsigned int imme;
 	unsigned long curr_pc;
@@ -1894,9 +1893,9 @@ out_fail:
 }
 
 enum emulation_result kvm_mips_emulate_load(union mips_instruction inst,
-					    u32 cause, struct kvm_run *run,
-					    struct kvm_vcpu *vcpu)
+					    u32 cause, struct kvm_vcpu *vcpu)
 {
+	struct kvm_run *run = vcpu->run;
 	int r;
 	enum emulation_result er;
 	unsigned long curr_pc;
@@ -2136,7 +2135,6 @@ enum emulation_result kvm_mips_emulate_load(union mips_instruction inst,
 static enum emulation_result kvm_mips_guest_cache_op(int (*fn)(unsigned long),
 						     unsigned long curr_pc,
 						     unsigned long addr,
-						     struct kvm_run *run,
 						     struct kvm_vcpu *vcpu,
 						     u32 cause)
 {
@@ -2164,13 +2162,13 @@ static enum emulation_result kvm_mips_guest_cache_op(int (*fn)(unsigned long),
 			/* no matching guest TLB */
 			vcpu->arch.host_cp0_badvaddr = addr;
 			vcpu->arch.pc = curr_pc;
-			kvm_mips_emulate_tlbmiss_ld(cause, NULL, run, vcpu);
+			kvm_mips_emulate_tlbmiss_ld(cause, NULL, vcpu);
 			return EMULATE_EXCEPT;
 		case KVM_MIPS_TLBINV:
 			/* invalid matching guest TLB */
 			vcpu->arch.host_cp0_badvaddr = addr;
 			vcpu->arch.pc = curr_pc;
-			kvm_mips_emulate_tlbinv_ld(cause, NULL, run, vcpu);
+			kvm_mips_emulate_tlbinv_ld(cause, NULL, vcpu);
 			return EMULATE_EXCEPT;
 		default:
 			break;
@@ -2180,7 +2178,6 @@ static enum emulation_result kvm_mips_guest_cache_op(int (*fn)(unsigned long),
 
 enum emulation_result kvm_mips_emulate_cache(union mips_instruction inst,
 					     u32 *opc, u32 cause,
-					     struct kvm_run *run,
 					     struct kvm_vcpu *vcpu)
 {
 	enum emulation_result er = EMULATE_DONE;
@@ -2270,7 +2267,7 @@ enum emulation_result kvm_mips_emulate_cache(union mips_instruction inst,
 		 * guest's behalf.
 		 */
 		er = kvm_mips_guest_cache_op(protected_writeback_dcache_line,
-					     curr_pc, va, run, vcpu, cause);
+					     curr_pc, va, vcpu, cause);
 		if (er != EMULATE_DONE)
 			goto done;
 #ifdef CONFIG_KVM_MIPS_DYN_TRANS
@@ -2283,11 +2280,11 @@ enum emulation_result kvm_mips_emulate_cache(union mips_instruction inst,
 	} else if (op_inst == Hit_Invalidate_I) {
 		/* Perform the icache synchronisation on the guest's behalf */
 		er = kvm_mips_guest_cache_op(protected_writeback_dcache_line,
-					     curr_pc, va, run, vcpu, cause);
+					     curr_pc, va, vcpu, cause);
 		if (er != EMULATE_DONE)
 			goto done;
 		er = kvm_mips_guest_cache_op(protected_flush_icache_line,
-					     curr_pc, va, run, vcpu, cause);
+					     curr_pc, va, vcpu, cause);
 		if (er != EMULATE_DONE)
 			goto done;
 
@@ -2313,7 +2310,6 @@ done:
 }
 
 enum emulation_result kvm_mips_emulate_inst(u32 cause, u32 *opc,
-					    struct kvm_run *run,
 					    struct kvm_vcpu *vcpu)
 {
 	union mips_instruction inst;
@@ -2329,14 +2325,14 @@ enum emulation_result kvm_mips_emulate_inst(u32 cause, u32 *opc,
 
 	switch (inst.r_format.opcode) {
 	case cop0_op:
-		er = kvm_mips_emulate_CP0(inst, opc, cause, run, vcpu);
+		er = kvm_mips_emulate_CP0(inst, opc, cause, vcpu);
 		break;
 
 #ifndef CONFIG_CPU_MIPSR6
 	case cache_op:
 		++vcpu->stat.cache_exits;
 		trace_kvm_exit(vcpu, KVM_TRACE_EXIT_CACHE);
-		er = kvm_mips_emulate_cache(inst, opc, cause, run, vcpu);
+		er = kvm_mips_emulate_cache(inst, opc, cause, vcpu);
 		break;
 #else
 	case spec3_op:
@@ -2344,7 +2340,7 @@ enum emulation_result kvm_mips_emulate_inst(u32 cause, u32 *opc,
 		case cache6_op:
 			++vcpu->stat.cache_exits;
 			trace_kvm_exit(vcpu, KVM_TRACE_EXIT_CACHE);
-			er = kvm_mips_emulate_cache(inst, opc, cause, run,
+			er = kvm_mips_emulate_cache(inst, opc, cause,
 						    vcpu);
 			break;
 		default:
@@ -2384,7 +2380,6 @@ long kvm_mips_guest_exception_base(struct kvm_vcpu *vcpu)
 
 enum emulation_result kvm_mips_emulate_syscall(u32 cause,
 					       u32 *opc,
-					       struct kvm_run *run,
 					       struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2419,7 +2414,6 @@ enum emulation_result kvm_mips_emulate_syscall(u32 cause,
 
 enum emulation_result kvm_mips_emulate_tlbmiss_ld(u32 cause,
 						  u32 *opc,
-						  struct kvm_run *run,
 						  struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2463,7 +2457,6 @@ enum emulation_result kvm_mips_emulate_tlbmiss_ld(u32 cause,
 
 enum emulation_result kvm_mips_emulate_tlbinv_ld(u32 cause,
 						 u32 *opc,
-						 struct kvm_run *run,
 						 struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2505,7 +2498,6 @@ enum emulation_result kvm_mips_emulate_tlbinv_ld(u32 cause,
 
 enum emulation_result kvm_mips_emulate_tlbmiss_st(u32 cause,
 						  u32 *opc,
-						  struct kvm_run *run,
 						  struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2547,7 +2539,6 @@ enum emulation_result kvm_mips_emulate_tlbmiss_st(u32 cause,
 
 enum emulation_result kvm_mips_emulate_tlbinv_st(u32 cause,
 						 u32 *opc,
-						 struct kvm_run *run,
 						 struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2588,7 +2579,6 @@ enum emulation_result kvm_mips_emulate_tlbinv_st(u32 cause,
 
 enum emulation_result kvm_mips_emulate_tlbmod(u32 cause,
 					      u32 *opc,
-					      struct kvm_run *run,
 					      struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2628,7 +2618,6 @@ enum emulation_result kvm_mips_emulate_tlbmod(u32 cause,
 
 enum emulation_result kvm_mips_emulate_fpu_exc(u32 cause,
 					       u32 *opc,
-					       struct kvm_run *run,
 					       struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2657,7 +2646,6 @@ enum emulation_result kvm_mips_emulate_fpu_exc(u32 cause,
 
 enum emulation_result kvm_mips_emulate_ri_exc(u32 cause,
 					      u32 *opc,
-					      struct kvm_run *run,
 					      struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2692,7 +2680,6 @@ enum emulation_result kvm_mips_emulate_ri_exc(u32 cause,
 
 enum emulation_result kvm_mips_emulate_bp_exc(u32 cause,
 					      u32 *opc,
-					      struct kvm_run *run,
 					      struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2727,7 +2714,6 @@ enum emulation_result kvm_mips_emulate_bp_exc(u32 cause,
 
 enum emulation_result kvm_mips_emulate_trap_exc(u32 cause,
 						u32 *opc,
-						struct kvm_run *run,
 						struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2762,7 +2748,6 @@ enum emulation_result kvm_mips_emulate_trap_exc(u32 cause,
 
 enum emulation_result kvm_mips_emulate_msafpe_exc(u32 cause,
 						  u32 *opc,
-						  struct kvm_run *run,
 						  struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2797,7 +2782,6 @@ enum emulation_result kvm_mips_emulate_msafpe_exc(u32 cause,
 
 enum emulation_result kvm_mips_emulate_fpe_exc(u32 cause,
 					       u32 *opc,
-					       struct kvm_run *run,
 					       struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2832,7 +2816,6 @@ enum emulation_result kvm_mips_emulate_fpe_exc(u32 cause,
 
 enum emulation_result kvm_mips_emulate_msadis_exc(u32 cause,
 						  u32 *opc,
-						  struct kvm_run *run,
 						  struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2866,7 +2849,6 @@ enum emulation_result kvm_mips_emulate_msadis_exc(u32 cause,
 }
 
 enum emulation_result kvm_mips_handle_ri(u32 cause, u32 *opc,
-					 struct kvm_run *run,
 					 struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -2955,12 +2937,12 @@ emulate_ri:
 	 * branch target), and pass the RI exception to the guest OS.
 	 */
 	vcpu->arch.pc = curr_pc;
-	return kvm_mips_emulate_ri_exc(cause, opc, run, vcpu);
+	return kvm_mips_emulate_ri_exc(cause, opc, vcpu);
 }
 
-enum emulation_result kvm_mips_complete_mmio_load(struct kvm_vcpu *vcpu,
-						  struct kvm_run *run)
+enum emulation_result kvm_mips_complete_mmio_load(struct kvm_vcpu *vcpu)
 {
+	struct kvm_run *run = vcpu->run;
 	unsigned long *gpr = &vcpu->arch.gprs[vcpu->arch.io_gpr];
 	enum emulation_result er = EMULATE_DONE;
 
@@ -3103,7 +3085,6 @@ done:
 
 static enum emulation_result kvm_mips_emulate_exc(u32 cause,
 						  u32 *opc,
-						  struct kvm_run *run,
 						  struct kvm_vcpu *vcpu)
 {
 	u32 exccode = (cause >> CAUSEB_EXCCODE) & 0x1f;
@@ -3141,7 +3122,6 @@ static enum emulation_result kvm_mips_emulate_exc(u32 cause,
 
 enum emulation_result kvm_mips_check_privilege(u32 cause,
 					       u32 *opc,
-					       struct kvm_run *run,
 					       struct kvm_vcpu *vcpu)
 {
 	enum emulation_result er = EMULATE_DONE;
@@ -3223,7 +3203,7 @@ enum emulation_result kvm_mips_check_privilege(u32 cause,
 	}
 
 	if (er == EMULATE_PRIV_FAIL)
-		kvm_mips_emulate_exc(cause, opc, run, vcpu);
+		kvm_mips_emulate_exc(cause, opc, vcpu);
 
 	return er;
 }
@@ -3237,7 +3217,6 @@ enum emulation_result kvm_mips_check_privilege(u32 cause,
  */
 enum emulation_result kvm_mips_handle_tlbmiss(u32 cause,
 					      u32 *opc,
-					      struct kvm_run *run,
 					      struct kvm_vcpu *vcpu,
 					      bool write_fault)
 {
@@ -3261,9 +3240,9 @@ enum emulation_result kvm_mips_handle_tlbmiss(u32 cause,
 		       KVM_ENTRYHI_ASID));
 	if (index < 0) {
 		if (exccode == EXCCODE_TLBL) {
-			er = kvm_mips_emulate_tlbmiss_ld(cause, opc, run, vcpu);
+			er = kvm_mips_emulate_tlbmiss_ld(cause, opc, vcpu);
 		} else if (exccode == EXCCODE_TLBS) {
-			er = kvm_mips_emulate_tlbmiss_st(cause, opc, run, vcpu);
+			er = kvm_mips_emulate_tlbmiss_st(cause, opc, vcpu);
 		} else {
 			kvm_err("%s: invalid exc code: %d\n", __func__,
 				exccode);
@@ -3278,10 +3257,10 @@ enum emulation_result kvm_mips_handle_tlbmiss(u32 cause,
 		 */
 		if (!TLB_IS_VALID(*tlb, va)) {
 			if (exccode == EXCCODE_TLBL) {
-				er = kvm_mips_emulate_tlbinv_ld(cause, opc, run,
+				er = kvm_mips_emulate_tlbinv_ld(cause, opc,
 								vcpu);
 			} else if (exccode == EXCCODE_TLBS) {
-				er = kvm_mips_emulate_tlbinv_st(cause, opc, run,
+				er = kvm_mips_emulate_tlbinv_st(cause, opc,
 								vcpu);
 			} else {
 				kvm_err("%s: invalid exc code: %d\n", __func__,
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index 666d3350b4ac..7de85d2253ff 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -450,7 +450,6 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 
 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
 {
-	struct kvm_run *run = vcpu->run;
 	int r = -EINTR;
 
 	vcpu_load(vcpu);
@@ -459,11 +458,11 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
 
 	if (vcpu->mmio_needed) {
 		if (!vcpu->mmio_is_write)
-			kvm_mips_complete_mmio_load(vcpu, run);
+			kvm_mips_complete_mmio_load(vcpu);
 		vcpu->mmio_needed = 0;
 	}
 
-	if (run->immediate_exit)
+	if (vcpu->run->immediate_exit)
 		goto out;
 
 	lose_fpu(1);
@@ -480,7 +479,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
 	 */
 	smp_store_mb(vcpu->mode, IN_GUEST_MODE);
 
-	r = kvm_mips_callbacks->vcpu_run(run, vcpu);
+	r = kvm_mips_callbacks->vcpu_run(vcpu);
 
 	trace_kvm_out(vcpu);
 	guest_exit_irqoff();
@@ -1236,7 +1235,7 @@ int kvm_mips_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu)
 		 * end up causing an exception to be delivered to the Guest
 		 * Kernel
 		 */
-		er = kvm_mips_check_privilege(cause, opc, run, vcpu);
+		er = kvm_mips_check_privilege(cause, opc, vcpu);
 		if (er == EMULATE_PRIV_FAIL) {
 			goto skip_emul;
 		} else if (er == EMULATE_FAIL) {
@@ -1385,7 +1384,7 @@ skip_emul:
 		 */
 		smp_store_mb(vcpu->mode, IN_GUEST_MODE);
 
-		kvm_mips_callbacks->vcpu_reenter(run, vcpu);
+		kvm_mips_callbacks->vcpu_reenter(vcpu);
 
 		/*
 		 * If FPU / MSA are enabled (i.e. the guest's FPU / MSA context
diff --git a/arch/mips/kvm/trap_emul.c b/arch/mips/kvm/trap_emul.c
index 34ad0b46e610..f8cba51e1054 100644
--- a/arch/mips/kvm/trap_emul.c
+++ b/arch/mips/kvm/trap_emul.c
@@ -67,7 +67,6 @@ static int kvm_trap_emul_no_handler(struct kvm_vcpu *vcpu)
 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;
 	u32 cause = vcpu->arch.host_cp0_cause;
 	enum emulation_result er = EMULATE_DONE;
@@ -81,14 +80,14 @@ static int kvm_trap_emul_handle_cop_unusable(struct kvm_vcpu *vcpu)
 			 * Unusable/no FPU in guest:
 			 * deliver guest COP1 Unusable Exception
 			 */
-			er = kvm_mips_emulate_fpu_exc(cause, opc, run, vcpu);
+			er = kvm_mips_emulate_fpu_exc(cause, opc, vcpu);
 		} else {
 			/* Restore FPU state */
 			kvm_own_fpu(vcpu);
 			er = EMULATE_DONE;
 		}
 	} else {
-		er = kvm_mips_emulate_inst(cause, opc, run, vcpu);
+		er = kvm_mips_emulate_inst(cause, opc, vcpu);
 	}
 
 	switch (er) {
@@ -97,12 +96,12 @@ static int kvm_trap_emul_handle_cop_unusable(struct kvm_vcpu *vcpu)
 		break;
 
 	case EMULATE_FAIL:
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		ret = RESUME_HOST;
 		break;
 
 	case EMULATE_WAIT:
-		run->exit_reason = KVM_EXIT_INTR;
+		vcpu->run->exit_reason = KVM_EXIT_INTR;
 		ret = RESUME_HOST;
 		break;
 
@@ -116,8 +115,7 @@ static int kvm_trap_emul_handle_cop_unusable(struct kvm_vcpu *vcpu)
 	return ret;
 }
 
-static int kvm_mips_bad_load(u32 cause, u32 *opc, struct kvm_run *run,
-			     struct kvm_vcpu *vcpu)
+static int kvm_mips_bad_load(u32 cause, u32 *opc, struct kvm_vcpu *vcpu)
 {
 	enum emulation_result er;
 	union mips_instruction inst;
@@ -125,7 +123,7 @@ static int kvm_mips_bad_load(u32 cause, u32 *opc, struct kvm_run *run,
 
 	/* A code fetch fault doesn't count as an MMIO */
 	if (kvm_is_ifetch_fault(&vcpu->arch)) {
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		return RESUME_HOST;
 	}
 
@@ -134,23 +132,22 @@ static int kvm_mips_bad_load(u32 cause, u32 *opc, struct kvm_run *run,
 		opc += 1;
 	err = kvm_get_badinstr(opc, vcpu, &inst.word);
 	if (err) {
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		return RESUME_HOST;
 	}
 
 	/* Emulate the load */
-	er = kvm_mips_emulate_load(inst, cause, run, vcpu);
+	er = kvm_mips_emulate_load(inst, cause, vcpu);
 	if (er == EMULATE_FAIL) {
 		kvm_err("Emulate load from MMIO space failed\n");
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 	} else {
-		run->exit_reason = KVM_EXIT_MMIO;
+		vcpu->run->exit_reason = KVM_EXIT_MMIO;
 	}
 	return RESUME_HOST;
 }
 
-static int kvm_mips_bad_store(u32 cause, u32 *opc, struct kvm_run *run,
-			      struct kvm_vcpu *vcpu)
+static int kvm_mips_bad_store(u32 cause, u32 *opc, struct kvm_vcpu *vcpu)
 {
 	enum emulation_result er;
 	union mips_instruction inst;
@@ -161,34 +158,33 @@ static int kvm_mips_bad_store(u32 cause, u32 *opc, struct kvm_run *run,
 		opc += 1;
 	err = kvm_get_badinstr(opc, vcpu, &inst.word);
 	if (err) {
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		return RESUME_HOST;
 	}
 
 	/* Emulate the store */
-	er = kvm_mips_emulate_store(inst, cause, run, vcpu);
+	er = kvm_mips_emulate_store(inst, cause, vcpu);
 	if (er == EMULATE_FAIL) {
 		kvm_err("Emulate store to MMIO space failed\n");
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 	} else {
-		run->exit_reason = KVM_EXIT_MMIO;
+		vcpu->run->exit_reason = KVM_EXIT_MMIO;
 	}
 	return RESUME_HOST;
 }
 
-static int kvm_mips_bad_access(u32 cause, u32 *opc, struct kvm_run *run,
+static int kvm_mips_bad_access(u32 cause, u32 *opc,
 			       struct kvm_vcpu *vcpu, bool store)
 {
 	if (store)
-		return kvm_mips_bad_store(cause, opc, run, vcpu);
+		return kvm_mips_bad_store(cause, opc, vcpu);
 	else
-		return kvm_mips_bad_load(cause, opc, run, vcpu);
+		return kvm_mips_bad_load(cause, opc, vcpu);
 }
 
 static int kvm_trap_emul_handle_tlb_mod(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 badvaddr = vcpu->arch.host_cp0_badvaddr;
 	u32 cause = vcpu->arch.host_cp0_cause;
@@ -212,12 +208,12 @@ static int kvm_trap_emul_handle_tlb_mod(struct kvm_vcpu *vcpu)
 		 * They would indicate stale host TLB entries.
 		 */
 		if (unlikely(index < 0)) {
-			run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+			vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 			return RESUME_HOST;
 		}
 		tlb = vcpu->arch.guest_tlb + index;
 		if (unlikely(!TLB_IS_VALID(*tlb, badvaddr))) {
-			run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+			vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 			return RESUME_HOST;
 		}
 
@@ -226,23 +222,23 @@ static int kvm_trap_emul_handle_tlb_mod(struct kvm_vcpu *vcpu)
 		 * exception. Relay that on to the guest so it can handle it.
 		 */
 		if (!TLB_IS_DIRTY(*tlb, badvaddr)) {
-			kvm_mips_emulate_tlbmod(cause, opc, run, vcpu);
+			kvm_mips_emulate_tlbmod(cause, opc, vcpu);
 			return RESUME_GUEST;
 		}
 
 		if (kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb, badvaddr,
 							 true))
 			/* Not writable, needs handling as MMIO */
-			return kvm_mips_bad_store(cause, opc, run, vcpu);
+			return kvm_mips_bad_store(cause, opc, vcpu);
 		return RESUME_GUEST;
 	} else if (KVM_GUEST_KSEGX(badvaddr) == KVM_GUEST_KSEG0) {
 		if (kvm_mips_handle_kseg0_tlb_fault(badvaddr, vcpu, true) < 0)
 			/* Not writable, needs handling as MMIO */
-			return kvm_mips_bad_store(cause, opc, run, vcpu);
+			return kvm_mips_bad_store(cause, opc, vcpu);
 		return RESUME_GUEST;
 	} else {
 		/* host kernel addresses are all handled as MMIO */
-		return kvm_mips_bad_store(cause, opc, run, vcpu);
+		return kvm_mips_bad_store(cause, opc, vcpu);
 	}
 }
 
@@ -276,7 +272,7 @@ static int kvm_trap_emul_handle_tlb_miss(struct kvm_vcpu *vcpu, bool store)
 		 *     into the shadow host TLB
 		 */
 
-		er = kvm_mips_handle_tlbmiss(cause, opc, run, vcpu, store);
+		er = kvm_mips_handle_tlbmiss(cause, opc, vcpu, store);
 		if (er == EMULATE_DONE)
 			ret = RESUME_GUEST;
 		else {
@@ -289,14 +285,14 @@ static int kvm_trap_emul_handle_tlb_miss(struct kvm_vcpu *vcpu, bool store)
 		 * not expect to ever get them
 		 */
 		if (kvm_mips_handle_kseg0_tlb_fault(badvaddr, vcpu, store) < 0)
-			ret = kvm_mips_bad_access(cause, opc, run, vcpu, store);
+			ret = kvm_mips_bad_access(cause, opc, vcpu, store);
 	} else if (KVM_GUEST_KERNEL_MODE(vcpu)
 		   && (KSEGX(badvaddr) == CKSEG0 || KSEGX(badvaddr) == CKSEG1)) {
 		/*
 		 * With EVA we may get a TLB exception instead of an address
 		 * error when the guest performs MMIO to KSeg1 addresses.
 		 */
-		ret = kvm_mips_bad_access(cause, opc, run, vcpu, store);
+		ret = kvm_mips_bad_access(cause, opc, vcpu, store);
 	} else {
 		kvm_err("Illegal TLB %s fault address , cause %#x, PC: %p, BadVaddr: %#lx\n",
 			store ? "ST" : "LD", cause, opc, badvaddr);
@@ -320,7 +316,6 @@ static int kvm_trap_emul_handle_tlb_ld_miss(struct kvm_vcpu *vcpu)
 
 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;
 	u32 cause = vcpu->arch.host_cp0_cause;
@@ -328,11 +323,11 @@ static int kvm_trap_emul_handle_addr_err_st(struct kvm_vcpu *vcpu)
 
 	if (KVM_GUEST_KERNEL_MODE(vcpu)
 	    && (KSEGX(badvaddr) == CKSEG0 || KSEGX(badvaddr) == CKSEG1)) {
-		ret = kvm_mips_bad_store(cause, opc, run, vcpu);
+		ret = kvm_mips_bad_store(cause, opc, vcpu);
 	} else {
 		kvm_err("Address Error (STORE): cause %#x, PC: %p, BadVaddr: %#lx\n",
 			cause, opc, badvaddr);
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		ret = RESUME_HOST;
 	}
 	return ret;
@@ -340,18 +335,17 @@ static int kvm_trap_emul_handle_addr_err_st(struct kvm_vcpu *vcpu)
 
 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;
 	u32 cause = vcpu->arch.host_cp0_cause;
 	int ret = RESUME_GUEST;
 
 	if (KSEGX(badvaddr) == CKSEG0 || KSEGX(badvaddr) == CKSEG1) {
-		ret = kvm_mips_bad_load(cause, opc, run, vcpu);
+		ret = kvm_mips_bad_load(cause, opc, vcpu);
 	} else {
 		kvm_err("Address Error (LOAD): cause %#x, PC: %p, BadVaddr: %#lx\n",
 			cause, opc, badvaddr);
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		ret = RESUME_HOST;
 	}
 	return ret;
@@ -359,17 +353,16 @@ static int kvm_trap_emul_handle_addr_err_ld(struct kvm_vcpu *vcpu)
 
 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;
 	u32 cause = vcpu->arch.host_cp0_cause;
 	enum emulation_result er = EMULATE_DONE;
 	int ret = RESUME_GUEST;
 
-	er = kvm_mips_emulate_syscall(cause, opc, run, vcpu);
+	er = kvm_mips_emulate_syscall(cause, opc, vcpu);
 	if (er == EMULATE_DONE)
 		ret = RESUME_GUEST;
 	else {
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		ret = RESUME_HOST;
 	}
 	return ret;
@@ -377,17 +370,16 @@ static int kvm_trap_emul_handle_syscall(struct kvm_vcpu *vcpu)
 
 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;
 	u32 cause = vcpu->arch.host_cp0_cause;
 	enum emulation_result er = EMULATE_DONE;
 	int ret = RESUME_GUEST;
 
-	er = kvm_mips_handle_ri(cause, opc, run, vcpu);
+	er = kvm_mips_handle_ri(cause, opc, vcpu);
 	if (er == EMULATE_DONE)
 		ret = RESUME_GUEST;
 	else {
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		ret = RESUME_HOST;
 	}
 	return ret;
@@ -395,17 +387,16 @@ static int kvm_trap_emul_handle_res_inst(struct kvm_vcpu *vcpu)
 
 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;
 	u32 cause = vcpu->arch.host_cp0_cause;
 	enum emulation_result er = EMULATE_DONE;
 	int ret = RESUME_GUEST;
 
-	er = kvm_mips_emulate_bp_exc(cause, opc, run, vcpu);
+	er = kvm_mips_emulate_bp_exc(cause, opc, vcpu);
 	if (er == EMULATE_DONE)
 		ret = RESUME_GUEST;
 	else {
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		ret = RESUME_HOST;
 	}
 	return ret;
@@ -413,17 +404,16 @@ static int kvm_trap_emul_handle_break(struct kvm_vcpu *vcpu)
 
 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;
 	u32 cause = vcpu->arch.host_cp0_cause;
 	enum emulation_result er = EMULATE_DONE;
 	int ret = RESUME_GUEST;
 
-	er = kvm_mips_emulate_trap_exc(cause, opc, run, vcpu);
+	er = kvm_mips_emulate_trap_exc(cause, opc, vcpu);
 	if (er == EMULATE_DONE) {
 		ret = RESUME_GUEST;
 	} else {
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		ret = RESUME_HOST;
 	}
 	return ret;
@@ -431,17 +421,16 @@ static int kvm_trap_emul_handle_trap(struct kvm_vcpu *vcpu)
 
 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;
 	u32 cause = vcpu->arch.host_cp0_cause;
 	enum emulation_result er = EMULATE_DONE;
 	int ret = RESUME_GUEST;
 
-	er = kvm_mips_emulate_msafpe_exc(cause, opc, run, vcpu);
+	er = kvm_mips_emulate_msafpe_exc(cause, opc, vcpu);
 	if (er == EMULATE_DONE) {
 		ret = RESUME_GUEST;
 	} else {
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		ret = RESUME_HOST;
 	}
 	return ret;
@@ -449,17 +438,16 @@ static int kvm_trap_emul_handle_msa_fpe(struct kvm_vcpu *vcpu)
 
 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;
 	u32 cause = vcpu->arch.host_cp0_cause;
 	enum emulation_result er = EMULATE_DONE;
 	int ret = RESUME_GUEST;
 
-	er = kvm_mips_emulate_fpe_exc(cause, opc, run, vcpu);
+	er = kvm_mips_emulate_fpe_exc(cause, opc, vcpu);
 	if (er == EMULATE_DONE) {
 		ret = RESUME_GUEST;
 	} else {
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		ret = RESUME_HOST;
 	}
 	return ret;
@@ -474,7 +462,6 @@ static int kvm_trap_emul_handle_fpe(struct kvm_vcpu *vcpu)
 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;
 	u32 cause = vcpu->arch.host_cp0_cause;
 	enum emulation_result er = EMULATE_DONE;
@@ -486,10 +473,10 @@ static int kvm_trap_emul_handle_msa_disabled(struct kvm_vcpu *vcpu)
 		 * No MSA in guest, or FPU enabled and not in FR=1 mode,
 		 * guest reserved instruction exception
 		 */
-		er = kvm_mips_emulate_ri_exc(cause, opc, run, vcpu);
+		er = kvm_mips_emulate_ri_exc(cause, opc, vcpu);
 	} else if (!(kvm_read_c0_guest_config5(cop0) & MIPS_CONF5_MSAEN)) {
 		/* MSA disabled by guest, guest MSA disabled exception */
-		er = kvm_mips_emulate_msadis_exc(cause, opc, run, vcpu);
+		er = kvm_mips_emulate_msadis_exc(cause, opc, vcpu);
 	} else {
 		/* Restore MSA/FPU state */
 		kvm_own_msa(vcpu);
@@ -502,7 +489,7 @@ static int kvm_trap_emul_handle_msa_disabled(struct kvm_vcpu *vcpu)
 		break;
 
 	case EMULATE_FAIL:
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		ret = RESUME_HOST;
 		break;
 
@@ -1184,8 +1171,7 @@ void kvm_trap_emul_gva_lockless_end(struct kvm_vcpu *vcpu)
 	local_irq_enable();
 }
 
-static void kvm_trap_emul_vcpu_reenter(struct kvm_run *run,
-				       struct kvm_vcpu *vcpu)
+static void kvm_trap_emul_vcpu_reenter(struct kvm_vcpu *vcpu)
 {
 	struct mm_struct *kern_mm = &vcpu->arch.guest_kernel_mm;
 	struct mm_struct *user_mm = &vcpu->arch.guest_user_mm;
@@ -1228,7 +1214,7 @@ static void kvm_trap_emul_vcpu_reenter(struct kvm_run *run,
 	check_mmu_context(mm);
 }
 
-static int kvm_trap_emul_vcpu_run(struct kvm_run *run, struct kvm_vcpu *vcpu)
+static int kvm_trap_emul_vcpu_run(struct kvm_vcpu *vcpu)
 {
 	int cpu = smp_processor_id();
 	int r;
@@ -1237,7 +1223,7 @@ static int kvm_trap_emul_vcpu_run(struct kvm_run *run, struct kvm_vcpu *vcpu)
 	kvm_mips_deliver_interrupts(vcpu,
 				    kvm_read_c0_guest_cause(vcpu->arch.cop0));
 
-	kvm_trap_emul_vcpu_reenter(run, vcpu);
+	kvm_trap_emul_vcpu_reenter(vcpu);
 
 	/*
 	 * We use user accessors to access guest memory, but we don't want to
@@ -1255,7 +1241,7 @@ static int kvm_trap_emul_vcpu_run(struct kvm_run *run, struct kvm_vcpu *vcpu)
 	 */
 	kvm_mips_suspend_mm(cpu);
 
-	r = vcpu->arch.vcpu_run(run, vcpu);
+	r = vcpu->arch.vcpu_run(vcpu->run, vcpu);
 
 	/* We may have migrated while handling guest exits */
 	cpu = smp_processor_id();
diff --git a/arch/mips/kvm/vz.c b/arch/mips/kvm/vz.c
index d9c462c14163..9e58c479ee20 100644
--- a/arch/mips/kvm/vz.c
+++ b/arch/mips/kvm/vz.c
@@ -874,7 +874,6 @@ static void kvm_write_maari(struct kvm_vcpu *vcpu, unsigned long val)
 
 static enum emulation_result kvm_vz_gpsi_cop0(union mips_instruction inst,
 					      u32 *opc, u32 cause,
-					      struct kvm_run *run,
 					      struct kvm_vcpu *vcpu)
 {
 	struct mips_coproc *cop0 = vcpu->arch.cop0;
@@ -1074,7 +1073,6 @@ static enum emulation_result kvm_vz_gpsi_cop0(union mips_instruction inst,
 
 static enum emulation_result kvm_vz_gpsi_cache(union mips_instruction inst,
 					       u32 *opc, u32 cause,
-					       struct kvm_run *run,
 					       struct kvm_vcpu *vcpu)
 {
 	enum emulation_result er = EMULATE_DONE;
@@ -1217,7 +1215,6 @@ static enum emulation_result kvm_trap_vz_handle_gpsi(u32 cause, u32 *opc,
 {
 	enum emulation_result er = EMULATE_DONE;
 	struct kvm_vcpu_arch *arch = &vcpu->arch;
-	struct kvm_run *run = vcpu->run;
 	union mips_instruction inst;
 	int rd, rt, sel;
 	int err;
@@ -1233,12 +1230,12 @@ static enum emulation_result kvm_trap_vz_handle_gpsi(u32 cause, u32 *opc,
 
 	switch (inst.r_format.opcode) {
 	case cop0_op:
-		er = kvm_vz_gpsi_cop0(inst, opc, cause, run, vcpu);
+		er = kvm_vz_gpsi_cop0(inst, opc, cause, vcpu);
 		break;
 #ifndef CONFIG_CPU_MIPSR6
 	case cache_op:
 		trace_kvm_exit(vcpu, KVM_TRACE_EXIT_CACHE);
-		er = kvm_vz_gpsi_cache(inst, opc, cause, run, vcpu);
+		er = kvm_vz_gpsi_cache(inst, opc, cause, vcpu);
 		break;
 #endif
 #ifdef CONFIG_CPU_LOONGSON64
@@ -1251,7 +1248,7 @@ static enum emulation_result kvm_trap_vz_handle_gpsi(u32 cause, u32 *opc,
 #ifdef CONFIG_CPU_MIPSR6
 		case cache6_op:
 			trace_kvm_exit(vcpu, KVM_TRACE_EXIT_CACHE);
-			er = kvm_vz_gpsi_cache(inst, opc, cause, run, vcpu);
+			er = kvm_vz_gpsi_cache(inst, opc, cause, vcpu);
 			break;
 #endif
 		case rdhwr_op:
@@ -1553,7 +1550,6 @@ static int kvm_trap_vz_handle_guest_exit(struct kvm_vcpu *vcpu)
  */
 static int kvm_trap_vz_handle_cop_unusable(struct kvm_vcpu *vcpu)
 {
-	struct kvm_run *run = vcpu->run;
 	u32 cause = vcpu->arch.host_cp0_cause;
 	enum emulation_result er = EMULATE_FAIL;
 	int ret = RESUME_GUEST;
@@ -1581,7 +1577,7 @@ static int kvm_trap_vz_handle_cop_unusable(struct kvm_vcpu *vcpu)
 		break;
 
 	case EMULATE_FAIL:
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		ret = RESUME_HOST;
 		break;
 
@@ -1600,8 +1596,6 @@ static int kvm_trap_vz_handle_cop_unusable(struct kvm_vcpu *vcpu)
  */
 static int kvm_trap_vz_handle_msa_disabled(struct kvm_vcpu *vcpu)
 {
-	struct kvm_run *run = vcpu->run;
-
 	/*
 	 * If MSA not present or not exposed to guest or FR=0, the MSA operation
 	 * should have been treated as a reserved instruction!
@@ -1612,7 +1606,7 @@ static int kvm_trap_vz_handle_msa_disabled(struct kvm_vcpu *vcpu)
 	    (read_gc0_status() & (ST0_CU1 | ST0_FR)) == ST0_CU1 ||
 	    !(read_gc0_config5() & MIPS_CONF5_MSAEN) ||
 	    vcpu->arch.aux_inuse & KVM_MIPS_AUX_MSA) {
-		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		return RESUME_HOST;
 	}
 
@@ -1648,7 +1642,7 @@ static int kvm_trap_vz_handle_tlb_ld_miss(struct kvm_vcpu *vcpu)
 		}
 
 		/* Treat as MMIO */
-		er = kvm_mips_emulate_load(inst, cause, run, vcpu);
+		er = kvm_mips_emulate_load(inst, cause, vcpu);
 		if (er == EMULATE_FAIL) {
 			kvm_err("Guest Emulate Load from MMIO space failed: PC: %p, BadVaddr: %#lx\n",
 				opc, badvaddr);
@@ -1695,7 +1689,7 @@ static int kvm_trap_vz_handle_tlb_st_miss(struct kvm_vcpu *vcpu)
 		}
 
 		/* Treat as MMIO */
-		er = kvm_mips_emulate_store(inst, cause, run, vcpu);
+		er = kvm_mips_emulate_store(inst, cause, vcpu);
 		if (er == EMULATE_FAIL) {
 			kvm_err("Guest Emulate Store to MMIO space failed: PC: %p, BadVaddr: %#lx\n",
 				opc, badvaddr);
@@ -3242,7 +3236,7 @@ static void kvm_vz_flush_shadow_memslot(struct kvm *kvm,
 	kvm_vz_flush_shadow_all(kvm);
 }
 
-static void kvm_vz_vcpu_reenter(struct kvm_run *run, struct kvm_vcpu *vcpu)
+static void kvm_vz_vcpu_reenter(struct kvm_vcpu *vcpu)
 {
 	int cpu = smp_processor_id();
 	int preserve_guest_tlb;
@@ -3258,7 +3252,7 @@ static void kvm_vz_vcpu_reenter(struct kvm_run *run, struct kvm_vcpu *vcpu)
 		kvm_vz_vcpu_load_wired(vcpu);
 }
 
-static int kvm_vz_vcpu_run(struct kvm_run *run, struct kvm_vcpu *vcpu)
+static int kvm_vz_vcpu_run(struct kvm_vcpu *vcpu)
 {
 	int cpu = smp_processor_id();
 	int r;
@@ -3271,7 +3265,7 @@ static int kvm_vz_vcpu_run(struct kvm_run *run, struct kvm_vcpu *vcpu)
 	kvm_vz_vcpu_load_tlb(vcpu, cpu);
 	kvm_vz_vcpu_load_wired(vcpu);
 
-	r = vcpu->arch.vcpu_run(run, vcpu);
+	r = vcpu->arch.vcpu_run(vcpu->run, vcpu);
 
 	kvm_vz_vcpu_save_wired(vcpu);