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KVM: PPC: Add load_from_eaddr and store_to_eaddr to the kvmppc_ops struct

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The kvmppc_ops struct is used to store function pointers to kvm
implementation specific functions.

Introduce two new functions load_from_eaddr and store_to_eaddr to be
used to load from and store to a guest effective address respectively.

Also implement these for the kvm-hv module. If we are using the radix
mmu then we can call the functions to access quadrant 1 and 2.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Suraj Jitindar Singh
2018-12-14 16:29:06 +11:00
committed by Paul Mackerras
parent d7b4561522
commit dceadcf91b
2 changed files with 44 additions and 0 deletions
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4
arch/powerpc/include/asm/kvm_ppc.h
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@@ -328,6 +328,10 @@ struct kvmppc_ops {
unsigned long flags);
void (*giveup_ext)(struct kvm_vcpu *vcpu, ulong msr);
int (*enable_nested)(struct kvm *kvm);
int (*load_from_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr,
int size);
int (*store_to_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr,
int size);
};
extern struct kvmppc_ops *kvmppc_hv_ops;