1 files changed, 16 insertions, 14 deletions

diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 9fc4dd8f66eb..9118242063fb 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -759,7 +759,7 @@ static int kvmppc_handle_pagefault(struct kvm_vcpu *vcpu,
 			flags = DSISR_NOHPTE;
 		if (data) {
 			flags |= vcpu->arch.fault_dsisr & DSISR_ISSTORE;
-			kvmppc_core_queue_data_storage(vcpu, eaddr, flags);
+			kvmppc_core_queue_data_storage(vcpu, 0, eaddr, flags);
 		} else {
 			kvmppc_core_queue_inst_storage(vcpu, flags);
 		}
@@ -1044,6 +1044,8 @@ void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr)
 {
 	if (fscr & FSCR_SCV)
 		fscr &= ~FSCR_SCV; /* SCV must not be enabled */
+	/* Prohibit prefixed instructions for now */
+	fscr &= ~FSCR_PREFIX;
 	if ((vcpu->arch.fscr & FSCR_TAR) && !(fscr & FSCR_TAR)) {
 		/* TAR got dropped, drop it in shadow too */
 		kvmppc_giveup_fac(vcpu, FSCR_TAR_LG);
@@ -1079,7 +1081,7 @@ static int kvmppc_exit_pr_progint(struct kvm_vcpu *vcpu, unsigned int exit_nr)
 {
 	enum emulation_result er;
 	ulong flags;
-	u32 last_inst;
+	ppc_inst_t last_inst;
 	int emul, r;
 
 	/*
@@ -1100,9 +1102,9 @@ static int kvmppc_exit_pr_progint(struct kvm_vcpu *vcpu, unsigned int exit_nr)
 	if (kvmppc_get_msr(vcpu) & MSR_PR) {
 #ifdef EXIT_DEBUG
 		pr_info("Userspace triggered 0x700 exception at\n 0x%lx (0x%x)\n",
-			kvmppc_get_pc(vcpu), last_inst);
+			kvmppc_get_pc(vcpu), ppc_inst_val(last_inst));
 #endif
-		if ((last_inst & 0xff0007ff) != (INS_DCBZ & 0xfffffff7)) {
+		if ((ppc_inst_val(last_inst) & 0xff0007ff) != (INS_DCBZ & 0xfffffff7)) {
 			kvmppc_core_queue_program(vcpu, flags);
 			return RESUME_GUEST;
 		}
@@ -1119,7 +1121,7 @@ static int kvmppc_exit_pr_progint(struct kvm_vcpu *vcpu, unsigned int exit_nr)
 		break;
 	case EMULATE_FAIL:
 		pr_crit("%s: emulation at %lx failed (%08x)\n",
-			__func__, kvmppc_get_pc(vcpu), last_inst);
+			__func__, kvmppc_get_pc(vcpu), ppc_inst_val(last_inst));
 		kvmppc_core_queue_program(vcpu, flags);
 		r = RESUME_GUEST;
 		break;
@@ -1236,7 +1238,7 @@ int kvmppc_handle_exit_pr(struct kvm_vcpu *vcpu, unsigned int exit_nr)
 			r = kvmppc_handle_pagefault(vcpu, dar, exit_nr);
 			srcu_read_unlock(&vcpu->kvm->srcu, idx);
 		} else {
-			kvmppc_core_queue_data_storage(vcpu, dar, fault_dsisr);
+			kvmppc_core_queue_data_storage(vcpu, 0, dar, fault_dsisr);
 			r = RESUME_GUEST;
 		}
 		break;
@@ -1281,7 +1283,7 @@ int kvmppc_handle_exit_pr(struct kvm_vcpu *vcpu, unsigned int exit_nr)
 		break;
 	case BOOK3S_INTERRUPT_SYSCALL:
 	{
-		u32 last_sc;
+		ppc_inst_t last_sc;
 		int emul;
 
 		/* Get last sc for papr */
@@ -1296,7 +1298,7 @@ int kvmppc_handle_exit_pr(struct kvm_vcpu *vcpu, unsigned int exit_nr)
 		}
 
 		if (vcpu->arch.papr_enabled &&
-		    (last_sc == 0x44000022) &&
+		    (ppc_inst_val(last_sc) == 0x44000022) &&
 		    !(kvmppc_get_msr(vcpu) & MSR_PR)) {
 			/* SC 1 papr hypercalls */
 			ulong cmd = kvmppc_get_gpr(vcpu, 3);
@@ -1348,7 +1350,7 @@ int kvmppc_handle_exit_pr(struct kvm_vcpu *vcpu, unsigned int exit_nr)
 	{
 		int ext_msr = 0;
 		int emul;
-		u32 last_inst;
+		ppc_inst_t last_inst;
 
 		if (vcpu->arch.hflags & BOOK3S_HFLAG_PAIRED_SINGLE) {
 			/* Do paired single instruction emulation */
@@ -1382,15 +1384,15 @@ int kvmppc_handle_exit_pr(struct kvm_vcpu *vcpu, unsigned int exit_nr)
 	}
 	case BOOK3S_INTERRUPT_ALIGNMENT:
 	{
-		u32 last_inst;
+		ppc_inst_t last_inst;
 		int emul = kvmppc_get_last_inst(vcpu, INST_GENERIC, &last_inst);
 
 		if (emul == EMULATE_DONE) {
 			u32 dsisr;
 			u64 dar;
 
-			dsisr = kvmppc_alignment_dsisr(vcpu, last_inst);
-			dar = kvmppc_alignment_dar(vcpu, last_inst);
+			dsisr = kvmppc_alignment_dsisr(vcpu, ppc_inst_val(last_inst));
+			dar = kvmppc_alignment_dar(vcpu, ppc_inst_val(last_inst));
 
 			kvmppc_set_dsisr(vcpu, dsisr);
 			kvmppc_set_dar(vcpu, dar);
@@ -2042,8 +2044,8 @@ static int kvmppc_core_check_processor_compat_pr(void)
 	return 0;
 }
 
-static long kvm_arch_vm_ioctl_pr(struct file *filp,
-				 unsigned int ioctl, unsigned long arg)
+static int kvm_arch_vm_ioctl_pr(struct file *filp,
+				unsigned int ioctl, unsigned long arg)
 {
 	return -ENOTTY;
 }