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: James 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: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index 9250b59acd1842403823b8db631c72353eeea66c..dceb49422e3b1c339cbb47099d3ceb179964def7 100644 (file)
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -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);

diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c
index 8f4f3242a65591aafb42b763773807384840bc55..3baab5ec3d3b00267b87d98d3b8edb388562402e 100644 (file)
--- a/arch/mips/kvm/emulate.c
+++ b/arch/mips/kvm/emulate.c
@@ -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)

diff --git a/arch/mips/kvm/locore.S b/arch/mips/kvm/locore.S
index 5ad2d507b1253ade5bbe93bd51c8997b48eb510a..43c8ef847efaaf42e93dde8e83ef9d0befa9d22d 100644 (file)
--- a/arch/mips/kvm/locore.S
+++ b/arch/mips/kvm/locore.S
@@ -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 */
 

diff --git a/arch/mips/kvm/trap_emul.c b/arch/mips/kvm/trap_emul.c
index 4aa5d77b0d6ad6f6b75310ab383f668723833da8..ecf0068bc95eb0d43ef16abf707dd5524638c860 100644 (file)
--- a/arch/mips/kvm/trap_emul.c
+++ b/arch/mips/kvm/trap_emul.c
@@ -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;