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authorOlof Johansson <olof@lixom.net>2013-02-11 09:02:53 -0800
committerOlof Johansson <olof@lixom.net>2013-02-11 09:02:53 -0800
commit655e194cfee8ba89634228f97f1310df41b45cbb (patch)
tree85989f9f14ad53a3797ab5c70093a8181399e669 /arch/arm/include/asm/kvm_mmu.h
parentMerge branch 'for-rmk/perf' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into next/virt (diff)
parentMerge branch 'for-will/kvm/core' of git://github.com/virtualopensystems/linux-kvm-arm into for-rmk/virt/kvm/core (diff)
downloadwireguard-linux-655e194cfee8ba89634228f97f1310df41b45cbb.tar.xz
wireguard-linux-655e194cfee8ba89634228f97f1310df41b45cbb.zip
Merge branch 'for-rmk/virt/kvm/core' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into next/virt
* 'for-rmk/virt/kvm/core' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux: KVM: ARM: Add maintainer entry for KVM/ARM KVM: ARM: Power State Coordination Interface implementation KVM: ARM: Handle I/O aborts KVM: ARM: Handle guest faults in KVM KVM: ARM: VFP userspace interface KVM: ARM: Demux CCSIDR in the userspace API KVM: ARM: User space API for getting/setting co-proc registers KVM: ARM: Emulation framework and CP15 emulation KVM: ARM: World-switch implementation KVM: ARM: Inject IRQs and FIQs from userspace KVM: ARM: Memory virtualization setup KVM: ARM: Hypervisor initialization KVM: ARM: Initial skeleton to compile KVM support ARM: Section based HYP idmap ARM: Add page table and page defines needed by KVM
Diffstat (limited to 'arch/arm/include/asm/kvm_mmu.h')
-rw-r--r--arch/arm/include/asm/kvm_mmu.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h
new file mode 100644
index 000000000000..421a20b34874
--- /dev/null
+++ b/arch/arm/include/asm/kvm_mmu.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2012 - Virtual Open Systems and Columbia University
+ * Author: Christoffer Dall <c.dall@virtualopensystems.com>
+ *
+ * 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.
+ */
+
+#ifndef __ARM_KVM_MMU_H__
+#define __ARM_KVM_MMU_H__
+
+int create_hyp_mappings(void *from, void *to);
+int create_hyp_io_mappings(void *from, void *to, phys_addr_t);
+void free_hyp_pmds(void);
+
+int kvm_alloc_stage2_pgd(struct kvm *kvm);
+void kvm_free_stage2_pgd(struct kvm *kvm);
+int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa,
+ phys_addr_t pa, unsigned long size);
+
+int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run);
+
+void kvm_mmu_free_memory_caches(struct kvm_vcpu *vcpu);
+
+phys_addr_t kvm_mmu_get_httbr(void);
+int kvm_mmu_init(void);
+void kvm_clear_hyp_idmap(void);
+
+static inline bool kvm_is_write_fault(unsigned long hsr)
+{
+ unsigned long hsr_ec = hsr >> HSR_EC_SHIFT;
+ if (hsr_ec == HSR_EC_IABT)
+ return false;
+ else if ((hsr & HSR_ISV) && !(hsr & HSR_WNR))
+ return false;
+ else
+ return true;
+}
+
+#endif /* __ARM_KVM_MMU_H__ */