Merge branch 'topic/ppc-kvm' into next

Merge our KVM topic branch.

arch/powerpc/include/asm/kvm_ppc.h

@@ -1014,6 +1014,18 @@ static inline void kvmppc_fix_ee_before_entry(void)
 #endif
 }
 
+static inline void kvmppc_fix_ee_after_exit(void)
+{
+#ifdef CONFIG_PPC64
+	/* Only need to enable IRQs by hard enabling them after this */
+	local_paca->irq_happened = PACA_IRQ_HARD_DIS;
+	irq_soft_mask_set(IRQS_ALL_DISABLED);
+#endif
+
+	trace_hardirqs_off();
+}
+
+
 static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
 {
 	ulong ea;

arch/powerpc/kvm/book3s_64_mmu_hv.c

@@ -1202,7 +1202,7 @@ static int resize_hpt_allocate(struct kvm_resize_hpt *resize)
 	if (rc < 0)
 		return rc;
 
-	resize_hpt_debug(resize, "resize_hpt_allocate(): HPT @ 0x%lx\n",
+	resize_hpt_debug(resize, "%s(): HPT @ 0x%lx\n", __func__,
 			 resize->hpt.virt);
 
 	return 0;
@@ -1443,7 +1443,7 @@ static void resize_hpt_prepare_work(struct work_struct *work)
 		 */
 		mutex_unlock(&kvm->arch.mmu_setup_lock);
 
-		resize_hpt_debug(resize, "resize_hpt_prepare_work(): order = %d\n",
+		resize_hpt_debug(resize, "%s(): order = %d\n", __func__,
 				 resize->order);
 
 		err = resize_hpt_allocate(resize);
@@ -1887,8 +1887,7 @@ static ssize_t kvm_htab_write(struct file *file, const char __user *buf,
 			ret = kvmppc_virtmode_do_h_enter(kvm, H_EXACT, i, v, r,
 							 tmp);
 			if (ret != H_SUCCESS) {
-				pr_err("kvm_htab_write ret %ld i=%ld v=%lx "
-				       "r=%lx\n", ret, i, v, r);
+				pr_err("%s ret %ld i=%ld v=%lx r=%lx\n", __func__, ret, i, v, r);
 				goto out;
 			}
 			if (!mmu_ready && is_vrma_hpte(v)) {

arch/powerpc/kvm/book3s_64_vio.c

@@ -294,14 +294,14 @@ long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
 	struct kvmppc_spapr_tce_table *stt = NULL;
 	struct kvmppc_spapr_tce_table *siter;
 	struct mm_struct *mm = kvm->mm;
-	unsigned long npages, size = args->size;
+	unsigned long npages;
 	int ret;
 
 	if (!args->size || args->page_shift < 12 || args->page_shift > 34 ||
 		(args->offset + args->size > (ULLONG_MAX >> args->page_shift)))
 		return -EINVAL;
 
-	npages = kvmppc_tce_pages(size);
+	npages = kvmppc_tce_pages(args->size);
 	ret = account_locked_vm(mm, kvmppc_stt_pages(npages), true);
 	if (ret)
 		return ret;
@@ -314,7 +314,7 @@ long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
 	stt->liobn = args->liobn;
 	stt->page_shift = args->page_shift;
 	stt->offset = args->offset;
-	stt->size = size;
+	stt->size = args->size;
 	stt->kvm = kvm;
 	mutex_init(&stt->alloc_lock);
 	INIT_LIST_HEAD_RCU(&stt->iommu_tables);

arch/powerpc/kvm/book3s_hv_uvmem.c

@@ -1190,8 +1190,7 @@ int kvmppc_uvmem_init(void)
 
 	pfn_first = res->start >> PAGE_SHIFT;
 	pfn_last = pfn_first + (resource_size(res) >> PAGE_SHIFT);
-	kvmppc_uvmem_bitmap = kcalloc(BITS_TO_LONGS(pfn_last - pfn_first),
-				      sizeof(unsigned long), GFP_KERNEL);
+	kvmppc_uvmem_bitmap = bitmap_zalloc(pfn_last - pfn_first, GFP_KERNEL);
 	if (!kvmppc_uvmem_bitmap) {
 		ret = -ENOMEM;
 		goto out_unmap;
@@ -1215,5 +1214,5 @@ void kvmppc_uvmem_free(void)
 	memunmap_pages(&kvmppc_uvmem_pgmap);
 	release_mem_region(kvmppc_uvmem_pgmap.range.start,
 			   range_len(&kvmppc_uvmem_pgmap.range));
-	kfree(kvmppc_uvmem_bitmap);
+	bitmap_free(kvmppc_uvmem_bitmap);
 }

arch/powerpc/kvm/book3s_xive.c

@@ -539,7 +539,7 @@ static int xive_vm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr)
 	if (irq == XICS_IPI || irq == 0) {
 		/*
 		 * This barrier orders the setting of xc->cppr vs.
-		 * subsquent test of xc->mfrr done inside
+		 * subsequent test of xc->mfrr done inside
 		 * scan_interrupts and push_pending_to_hw
 		 */
 		smp_mb();
@@ -563,7 +563,7 @@ static int xive_vm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr)
 	/*
 	 * This barrier orders both setting of in_eoi above vs,
 	 * subsequent test of guest_priority, and the setting
-	 * of xc->cppr vs. subsquent test of xc->mfrr done inside
+	 * of xc->cppr vs. subsequent test of xc->mfrr done inside
 	 * scan_interrupts and push_pending_to_hw
 	 */
 	smp_mb();
@@ -2390,7 +2390,7 @@ static int xive_set_source(struct kvmppc_xive *xive, long irq, u64 addr)
 	/*
 	 * Now, we select a target if we have one. If we don't we
 	 * leave the interrupt untargetted. It means that an interrupt
-	 * can become "untargetted" accross migration if it was masked
+	 * can become "untargetted" across migration if it was masked
 	 * by set_xive() but there is little we can do about it.
 	 */
 

arch/powerpc/kvm/booke.c

@@ -1015,6 +1015,9 @@ int kvmppc_handle_exit(struct kvm_vcpu *vcpu, unsigned int exit_nr)
 	u32 last_inst = KVM_INST_FETCH_FAILED;
 	enum emulation_result emulated = EMULATE_DONE;
 
+	/* Fix irq state (pairs with kvmppc_fix_ee_before_entry()) */
+	kvmppc_fix_ee_after_exit();
+
 	/* update before a new last_exit_type is rewritten */
 	kvmppc_update_timing_stats(vcpu);
 

arch/powerpc/kvm/bookehv_interrupts.S

@@ -424,15 +424,6 @@ _GLOBAL(kvmppc_resume_host)
 	mtspr	SPRN_EPCR, r3
 	isync
 
-#ifdef CONFIG_64BIT
-	/*
-	 * We enter with interrupts disabled in hardware, but
-	 * we need to call RECONCILE_IRQ_STATE to ensure
-	 * that the software state is kept in sync.
-	 */
-	RECONCILE_IRQ_STATE(r3,r5)
-#endif
-
 	/* Switch to kernel stack and jump to handler. */
 	mr	r3, r4
 	mr	r5, r14 /* intno */