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109 lines
3.7 KiB
C
109 lines
3.7 KiB
C
/*
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* Copyright (c) 2018, Stefan Lankes, RWTH Aachen University
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __UHYVE_H__
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#define __UHYVE_H__
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#include <err.h>
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#include <linux/kvm.h>
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#define UHYVE_PORT_WRITE 0x400
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#define UHYVE_PORT_OPEN 0x440
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#define UHYVE_PORT_CLOSE 0x480
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#define UHYVE_PORT_READ 0x500
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#define UHYVE_PORT_EXIT 0x540
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#define UHYVE_PORT_LSEEK 0x580
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// Networkports
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#define UHYVE_PORT_NETINFO 0x600
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#define UHYVE_PORT_NETWRITE 0x640
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#define UHYVE_PORT_NETREAD 0x680
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#define UHYVE_PORT_NETSTAT 0x700
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/* Ports and data structures for uhyve command line arguments and envp
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* forwarding */
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#define UHYVE_PORT_CMDSIZE 0x740
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#define UHYVE_PORT_CMDVAL 0x780
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#define UHYVE_UART_PORT 0x800
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#define UHYVE_IRQ 11
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#define SIGTHRCHKP (SIGRTMIN+0)
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#define SIGTHRMIG (SIGRTMIN+1)
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#define kvm_ioctl(fd, cmd, arg) ({ \
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const int ret = ioctl(fd, cmd, arg); \
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if(ret == -1) \
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err(1, "KVM: ioctl " #cmd " failed"); \
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ret; \
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})
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#ifdef __x86_64__
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#define MAX_MSR_ENTRIES 25
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struct msr_data {
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struct kvm_msrs info;
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struct kvm_msr_entry entries[MAX_MSR_ENTRIES];
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};
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typedef struct _vcpu_state {
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struct msr_data msr_data;
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struct kvm_regs regs;
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struct kvm_sregs sregs;
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struct kvm_fpu fpu;
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struct kvm_lapic_state lapic;
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struct kvm_xsave xsave;
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struct kvm_xcrs xcrs;
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struct kvm_vcpu_events events;
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struct kvm_mp_state mp_state;
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} vcpu_state_t;
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#else
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typedef struct _vcpu_state {
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int dummy;
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} vcpu_state_t;
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#endif
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typedef struct _migration_metadata migration_metadata_t;
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void print_registers(void);
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void timer_handler(int signum);
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void *migration_handler(void *arg);
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void restore_cpu_state(vcpu_state_t cpu_state);
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vcpu_state_t read_cpu_state(void);
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vcpu_state_t save_cpu_state(void);
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void write_cpu_state(void);
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void init_cpu_state(uint64_t elf_entry);
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int load_kernel(uint8_t* mem, char* path);
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int load_checkpoint(uint8_t* mem, char* path);
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int load_migration_data(uint8_t* mem);
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void wait_for_incomming_migration(migration_metadata_t *metadata, uint16_t listen_portno);
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void init_kvm_arch(void);
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int load_kernel(uint8_t* mem, char* path);
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size_t determine_dest_offset(size_t src_addr);
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void determine_dirty_pages(void (*save_page_handler)(void*, size_t, void*, size_t));
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#endif
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