diff options
Diffstat (limited to 'arch/powerpc/include/asm/kvm_44x.h')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_44x.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_44x.h b/arch/powerpc/include/asm/kvm_44x.h new file mode 100644 index 000000000000..dece09350712 --- /dev/null +++ b/arch/powerpc/include/asm/kvm_44x.h @@ -0,0 +1,47 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Copyright IBM Corp. 2008 + * + * Authors: Hollis Blanchard <hollisb@us.ibm.com> + */ + +#ifndef __ASM_44X_H__ +#define __ASM_44X_H__ + +#include <linux/kvm_host.h> + +/* XXX Can't include mmu-44x.h because it redefines struct mm_context. */ +#define PPC44x_TLB_SIZE 64 + +struct kvmppc_vcpu_44x { + /* Unmodified copy of the guest's TLB. */ + struct kvmppc_44x_tlbe guest_tlb[PPC44x_TLB_SIZE]; + /* TLB that's actually used when the guest is running. */ + struct kvmppc_44x_tlbe shadow_tlb[PPC44x_TLB_SIZE]; + /* Pages which are referenced in the shadow TLB. */ + struct page *shadow_pages[PPC44x_TLB_SIZE]; + + /* Track which TLB entries we've modified in the current exit. */ + u8 shadow_tlb_mod[PPC44x_TLB_SIZE]; + + struct kvm_vcpu vcpu; +}; + +static inline struct kvmppc_vcpu_44x *to_44x(struct kvm_vcpu *vcpu) +{ + return container_of(vcpu, struct kvmppc_vcpu_44x, vcpu); +} + +#endif /* __ASM_44X_H__ */ |