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https://github.com/clearlinux/kvmtool.git
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Pekka Enberg
7fb218bdd0
We start KVM in 16-bit mode so we should set cs:ip to point to the real-mode boot sector and setup code, not the protected mode kernel that starts at 1M. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
41 lines
997 B
C
41 lines
997 B
C
#ifndef KVM__KVM_H
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#define KVM__KVM_H
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#include <linux/kvm.h> /* for struct kvm_regs */
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#include <stdbool.h>
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#include <stdint.h>
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struct kvm {
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int sys_fd; /* For system ioctls(), i.e. /dev/kvm */
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int vm_fd; /* For VM ioctls() */
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int vcpu_fd; /* For VCPU ioctls() */
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struct kvm_run *kvm_run;
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uint64_t ram_size;
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void *ram_start;
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uint16_t boot_cs; /* 16-bit code segment selector */
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uint16_t boot_ip; /* 16-bit code offset */
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struct kvm_regs regs;
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struct kvm_sregs sregs;
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};
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struct kvm *kvm__init(void);
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void kvm__enable_singlestep(struct kvm *self);
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bool kvm__load_kernel(struct kvm *kvm, const char *kernel_filename);
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void kvm__reset_vcpu(struct kvm *self);
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void kvm__run(struct kvm *self);
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void kvm__emulate_io(struct kvm *self, uint16_t port, void *data, int direction, int size, uint32_t count);
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/*
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* Debugging
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*/
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void kvm__show_code(struct kvm *self);
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void kvm__show_registers(struct kvm *self);
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extern const char *kvm_exit_reasons[];
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#endif /* KVM__KVM_H */
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