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beb03f14da
We will be introducing a method to project the shared page in guest context. As soon as we're talking about this coupling, the shared page is colled magic page. This patch introduces simple defines, so the follow-up patches are easier to read. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
43 lines
922 B
C
43 lines
922 B
C
#ifndef __LINUX_KVM_PARA_H
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#define __LINUX_KVM_PARA_H
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/*
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* This header file provides a method for making a hypercall to the host
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* Architectures should define:
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* - kvm_hypercall0, kvm_hypercall1...
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* - kvm_arch_para_features
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* - kvm_para_available
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*/
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/* Return values for hypercalls */
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#define KVM_ENOSYS 1000
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#define KVM_EFAULT EFAULT
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#define KVM_E2BIG E2BIG
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#define KVM_EPERM EPERM
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#define KVM_HC_VAPIC_POLL_IRQ 1
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#define KVM_HC_MMU_OP 2
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#define KVM_HC_FEATURES 3
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#define KVM_HC_PPC_MAP_MAGIC_PAGE 4
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/*
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* hypercalls use architecture specific
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*/
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#include <asm/kvm_para.h>
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#ifdef __KERNEL__
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#ifdef CONFIG_KVM_GUEST
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void __init kvm_guest_init(void);
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#else
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#define kvm_guest_init() do { } while (0)
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#endif
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static inline int kvm_para_has_feature(unsigned int feature)
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{
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if (kvm_arch_para_features() & (1UL << feature))
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return 1;
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return 0;
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}
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#endif /* __KERNEL__ */
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#endif /* __LINUX_KVM_PARA_H */
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