diff options
Diffstat (limited to 'arch/powerpc/kvm')
-rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_radix.c | 36 | ||||
-rw-r--r-- | arch/powerpc/kvm/book3s_hv.c | 4 | ||||
-rw-r--r-- | arch/powerpc/kvm/book3s_hv_rmhandlers.S | 3 |
3 files changed, 38 insertions, 5 deletions
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index 361f42c8c73e..481da8f93fa4 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -200,6 +200,7 @@ void kvmppc_radix_set_pte_at(struct kvm *kvm, unsigned long addr, } static struct kmem_cache *kvm_pte_cache; +static struct kmem_cache *kvm_pmd_cache; static pte_t *kvmppc_pte_alloc(void) { @@ -217,6 +218,16 @@ static inline int pmd_is_leaf(pmd_t pmd) return !!(pmd_val(pmd) & _PAGE_PTE); } +static pmd_t *kvmppc_pmd_alloc(void) +{ + return kmem_cache_alloc(kvm_pmd_cache, GFP_KERNEL); +} + +static void kvmppc_pmd_free(pmd_t *pmdp) +{ + kmem_cache_free(kvm_pmd_cache, pmdp); +} + static int kvmppc_create_pte(struct kvm *kvm, pte_t pte, unsigned long gpa, unsigned int level, unsigned long mmu_seq) { @@ -239,7 +250,7 @@ static int kvmppc_create_pte(struct kvm *kvm, pte_t pte, unsigned long gpa, if (pud && pud_present(*pud) && !pud_huge(*pud)) pmd = pmd_offset(pud, gpa); else if (level <= 1) - new_pmd = pmd_alloc_one(kvm->mm, gpa); + new_pmd = kvmppc_pmd_alloc(); if (level == 0 && !(pmd && pmd_present(*pmd) && !pmd_is_leaf(*pmd))) new_ptep = kvmppc_pte_alloc(); @@ -382,7 +393,7 @@ static int kvmppc_create_pte(struct kvm *kvm, pte_t pte, unsigned long gpa, if (new_pud) pud_free(kvm->mm, new_pud); if (new_pmd) - pmd_free(kvm->mm, new_pmd); + kvmppc_pmd_free(new_pmd); if (new_ptep) kvmppc_pte_free(new_ptep); return ret; @@ -758,7 +769,7 @@ void kvmppc_free_radix(struct kvm *kvm) kvmppc_pte_free(pte); pmd_clear(pmd); } - pmd_free(kvm->mm, pmd_offset(pud, 0)); + kvmppc_pmd_free(pmd_offset(pud, 0)); pud_clear(pud); } pud_free(kvm->mm, pud_offset(pgd, 0)); @@ -770,20 +781,35 @@ void kvmppc_free_radix(struct kvm *kvm) static void pte_ctor(void *addr) { - memset(addr, 0, PTE_TABLE_SIZE); + memset(addr, 0, RADIX_PTE_TABLE_SIZE); +} + +static void pmd_ctor(void *addr) +{ + memset(addr, 0, RADIX_PMD_TABLE_SIZE); } int kvmppc_radix_init(void) { - unsigned long size = sizeof(void *) << PTE_INDEX_SIZE; + unsigned long size = sizeof(void *) << RADIX_PTE_INDEX_SIZE; kvm_pte_cache = kmem_cache_create("kvm-pte", size, size, 0, pte_ctor); if (!kvm_pte_cache) return -ENOMEM; + + size = sizeof(void *) << RADIX_PMD_INDEX_SIZE; + + kvm_pmd_cache = kmem_cache_create("kvm-pmd", size, size, 0, pmd_ctor); + if (!kvm_pmd_cache) { + kmem_cache_destroy(kvm_pte_cache); + return -ENOMEM; + } + return 0; } void kvmppc_radix_exit(void) { kmem_cache_destroy(kvm_pte_cache); + kmem_cache_destroy(kvm_pmd_cache); } diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 9963f65c212b..cb6d2313b19f 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -2912,8 +2912,12 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc) srcu_idx = srcu_read_lock(&vc->kvm->srcu); + this_cpu_disable_ftrace(); + trap = __kvmppc_vcore_entry(); + this_cpu_enable_ftrace(); + srcu_read_unlock(&vc->kvm->srcu, srcu_idx); trace_hardirqs_off(); diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index 07ca1b2a7966..b97d261d3b89 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -342,6 +342,9 @@ kvm_start_guest: ld r2,PACATOC(r13) + li r0,0 + stb r0,PACA_FTRACE_ENABLED(r13) + li r0,KVM_HWTHREAD_IN_KVM stb r0,HSTATE_HWTHREAD_STATE(r13) |