4 files changed, 8 insertions, 59 deletions

diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index 10722b1e38b5..fb37290a57b4 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -544,7 +544,7 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 			 */
 			local_irq_save(flags);
 			ptep = find_linux_pte_or_hugepte(current->mm->pgd,
-							 hva, NULL);
+							 hva, NULL, NULL);
 			if (ptep) {
 				pte = kvmppc_read_update_linux_pte(ptep, 1);
 				if (pte_write(pte))
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index becad3ababe3..54b45b73195f 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -36,7 +36,6 @@
 
 #include <asm/reg.h>
 #include <asm/cputable.h>
-#include <asm/cache.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 #include <asm/uaccess.h>
@@ -75,12 +74,6 @@
 
 static DECLARE_BITMAP(default_enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 
-#if defined(CONFIG_PPC_64K_PAGES)
-#define MPP_BUFFER_ORDER	0
-#elif defined(CONFIG_PPC_4K_PAGES)
-#define MPP_BUFFER_ORDER	3
-#endif
-
 static int dynamic_mt_modes = 6;
 module_param(dynamic_mt_modes, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(dynamic_mt_modes, "Set of allowed dynamic micro-threading modes: 0 (= none), 2, 4, or 6 (= 2 or 4)");
@@ -1455,13 +1448,6 @@ static struct kvmppc_vcore *kvmppc_vcore_create(struct kvm *kvm, int core)
 	vcore->kvm = kvm;
 	INIT_LIST_HEAD(&vcore->preempt_list);
 
-	vcore->mpp_buffer_is_valid = false;
-
-	if (cpu_has_feature(CPU_FTR_ARCH_207S))
-		vcore->mpp_buffer = (void *)__get_free_pages(
-			GFP_KERNEL|__GFP_ZERO,
-			MPP_BUFFER_ORDER);
-
 	return vcore;
 }
 
@@ -1894,33 +1880,6 @@ static int on_primary_thread(void)
 	return 1;
 }
 
-static void kvmppc_start_saving_l2_cache(struct kvmppc_vcore *vc)
-{
-	phys_addr_t phy_addr, mpp_addr;
-
-	phy_addr = (phys_addr_t)virt_to_phys(vc->mpp_buffer);
-	mpp_addr = phy_addr & PPC_MPPE_ADDRESS_MASK;
-
-	mtspr(SPRN_MPPR, mpp_addr | PPC_MPPR_FETCH_ABORT);
-	logmpp(mpp_addr | PPC_LOGMPP_LOG_L2);
-
-	vc->mpp_buffer_is_valid = true;
-}
-
-static void kvmppc_start_restoring_l2_cache(const struct kvmppc_vcore *vc)
-{
-	phys_addr_t phy_addr, mpp_addr;
-
-	phy_addr = virt_to_phys(vc->mpp_buffer);
-	mpp_addr = phy_addr & PPC_MPPE_ADDRESS_MASK;
-
-	/* We must abort any in-progress save operations to ensure
-	 * the table is valid so that prefetch engine knows when to
-	 * stop prefetching. */
-	logmpp(mpp_addr | PPC_LOGMPP_LOG_ABORT);
-	mtspr(SPRN_MPPR, mpp_addr | PPC_MPPR_FETCH_WHOLE_TABLE);
-}
-
 /*
  * A list of virtual cores for each physical CPU.
  * These are vcores that could run but their runner VCPU tasks are
@@ -2471,14 +2430,8 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
 
 	srcu_idx = srcu_read_lock(&vc->kvm->srcu);
 
-	if (vc->mpp_buffer_is_valid)
-		kvmppc_start_restoring_l2_cache(vc);
-
 	__kvmppc_vcore_entry();
 
-	if (vc->mpp_buffer)
-		kvmppc_start_saving_l2_cache(vc);
-
 	srcu_read_unlock(&vc->kvm->srcu, srcu_idx);
 
 	spin_lock(&vc->lock);
@@ -3073,14 +3026,8 @@ static void kvmppc_free_vcores(struct kvm *kvm)
 {
 	long int i;
 
-	for (i = 0; i < KVM_MAX_VCORES; ++i) {
-		if (kvm->arch.vcores[i] && kvm->arch.vcores[i]->mpp_buffer) {
-			struct kvmppc_vcore *vc = kvm->arch.vcores[i];
-			free_pages((unsigned long)vc->mpp_buffer,
-				   MPP_BUFFER_ORDER);
-		}
+	for (i = 0; i < KVM_MAX_VCORES; ++i)
 		kfree(kvm->arch.vcores[i]);
-	}
 	kvm->arch.online_vcores = 0;
 }
 
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 97e7f8c853d8..91700518bbf3 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -32,7 +32,7 @@ static void *real_vmalloc_addr(void *x)
 	 * So don't worry about THP collapse/split. Called
 	 * Only in realmode, hence won't need irq_save/restore.
 	 */
-	p = __find_linux_pte_or_hugepte(swapper_pg_dir, addr, NULL);
+	p = __find_linux_pte_or_hugepte(swapper_pg_dir, addr, NULL, NULL);
 	if (!p || !pte_present(*p))
 		return NULL;
 	addr = (pte_pfn(*p) << PAGE_SHIFT) | (addr & ~PAGE_MASK);
@@ -221,10 +221,12 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
 	 * retry via mmu_notifier_retry.
 	 */
 	if (realmode)
-		ptep = __find_linux_pte_or_hugepte(pgdir, hva, &hpage_shift);
+		ptep = __find_linux_pte_or_hugepte(pgdir, hva, NULL,
+						   &hpage_shift);
 	else {
 		local_irq_save(irq_flags);
-		ptep = find_linux_pte_or_hugepte(pgdir, hva, &hpage_shift);
+		ptep = find_linux_pte_or_hugepte(pgdir, hva, NULL,
+						 &hpage_shift);
 	}
 	if (ptep) {
 		pte_t pte;
diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c
index 5e2102c19586..34c43fff4adb 100644
--- a/arch/powerpc/kvm/e500_mmu_host.c
+++ b/arch/powerpc/kvm/e500_mmu_host.c
@@ -476,7 +476,7 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
 	 * can't run hence pfn won't change.
 	 */
 	local_irq_save(flags);
-	ptep = find_linux_pte_or_hugepte(pgdir, hva, NULL);
+	ptep = find_linux_pte_or_hugepte(pgdir, hva, NULL, NULL);
 	if (ptep) {
 		pte_t pte = READ_ONCE(*ptep);