diff options
| author |   Paul Mackerras <paulus@samba.org> | 2012-11-19 22:55:44 +0000 |
|---|---|---|
| committer |   Alexander Graf <agraf@suse.de> | 2012-12-06 01:33:55 +0100 |
| commit | 6b445ad4f839b06e68dd8e178e1168482ca20310 (patch) | |
| tree | 5d7706fad9b7a22ccdf5fc1774d6acf530ea056e /arch/powerpc | |
| parent | KVM: PPC: Book3S HV: Add a mechanism for recording modified HPTEs (diff) | |
| download | linux-dev-6b445ad4f839b06e68dd8e178e1168482ca20310.tar.xz linux-dev-6b445ad4f839b06e68dd8e178e1168482ca20310.zip | |
KVM: PPC: Book3S HV: Make a HPTE removal function available
This makes a HPTE removal function, kvmppc_do_h_remove(), available
outside book3s_hv_rm_mmu.c. This will be used by the HPT writing
code.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_book3s.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_rm_mmu.c | 19 |
2 files changed, 16 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index fea768f21cd7..46763d10ad52 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -160,6 +160,9 @@ extern long kvmppc_virtmode_h_enter(struct kvm_vcpu *vcpu, unsigned long flags, extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags, long pte_index, unsigned long pteh, unsigned long ptel, pgd_t *pgdir, bool realmode, unsigned long *idx_ret); +extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags, + unsigned long pte_index, unsigned long avpn, + unsigned long *hpret); extern long kvmppc_hv_get_dirty_log(struct kvm *kvm, struct kvm_memory_slot *memslot, unsigned long *map); diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c index ed563a5f25c8..fc3da3208fda 100644 --- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c +++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c @@ -365,11 +365,10 @@ static inline int try_lock_tlbie(unsigned int *lock) return old == 0; } -long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags, - unsigned long pte_index, unsigned long avpn, - unsigned long va) +long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags, + unsigned long pte_index, unsigned long avpn, + unsigned long *hpret) { - struct kvm *kvm = vcpu->kvm; unsigned long *hpte; unsigned long v, r, rb; struct revmap_entry *rev; @@ -411,10 +410,18 @@ long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags, note_hpte_modification(kvm, rev); unlock_hpte(hpte, 0); - vcpu->arch.gpr[4] = v; - vcpu->arch.gpr[5] = r; + hpret[0] = v; + hpret[1] = r; return H_SUCCESS; } +EXPORT_SYMBOL_GPL(kvmppc_do_h_remove); + +long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags, + unsigned long pte_index, unsigned long avpn) +{ + return kvmppc_do_h_remove(vcpu->kvm, flags, pte_index, avpn, + &vcpu->arch.gpr[4]); +} long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu) { |