1227330e7e
It will segfault when cleanup migration streams before they are setup, to
avoid this, use tdx_mig.nr_streams rather than nr_channels.
Opportunistically remove the unnecessary parameter "nr_channels" in
following 2 callback functions in cgs_mig:
cgs_mig.savevm_state_cleanup
cgs_mig.loadvm_state_cleanup
This fixes LFE-9211 and LFE-9481.
Signed-off-by: Lei Wang <lei4.wang@intel.com>
66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
/*
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* QEMU Migration for Confidential Guest Support
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*
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* Copyright (C) 2022 Intel Corp.
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*
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* Authors:
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* Wei Wang <wei.w.wang@intel.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#ifndef QEMU_MIGRATION_CGS_H
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#define QEMU_MIGRATION_CGS_H
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#include "qemu/osdep.h"
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#include "migration.h"
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#include "multifd.h"
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#define CGS_PRIVATE_GPA_INVALID (~0UL)
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typedef struct CgsMig {
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bool (*is_ready)(void);
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int (*savevm_state_setup)(uint32_t nr_channels, uint32_t nr_pages);
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int (*savevm_state_start)(QEMUFile *f);
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long (*savevm_state_ram_start_epoch)(QEMUFile *f);
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long (*savevm_state_ram)(QEMUFile *f, uint32_t channel_id, hwaddr gpa);
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int (*savevm_state_pause)(void);
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int (*savevm_state_end)(QEMUFile *f);
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int (*savevm_state_ram_abort)(hwaddr gfn_end);
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long (*savevm_state_ram_cancel)(QEMUFile *f, hwaddr gpa);
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void (*savevm_state_cleanup)(void);
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int (*loadvm_state_setup)(uint32_t nr_channels, uint32_t nr_pages);
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int (*loadvm_state)(QEMUFile *f, uint32_t channel_id);
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void (*loadvm_state_cleanup)(void);
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/* Multifd support */
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uint32_t (*iov_num)(uint32_t page_batch_num);
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int (*multifd_send_prepare)(MultiFDSendParams *p, Error **errp);
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int (*multifd_recv_pages)(MultiFDRecvParams *p, Error **errp);
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} CgsMig;
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bool cgs_mig_is_ready(void);
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int cgs_mig_savevm_state_setup(QEMUFile *f);
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int cgs_mig_savevm_state_start(QEMUFile *f);
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long cgs_ram_save_start_epoch(QEMUFile *f);
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long cgs_mig_savevm_state_ram(QEMUFile *f, uint32_t channel_id,
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RAMBlock *block, ram_addr_t offset, hwaddr gpa);
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bool cgs_mig_savevm_state_need_ram_cancel(void);
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long cgs_mig_savevm_state_ram_cancel(QEMUFile *f, RAMBlock *block,
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ram_addr_t offset, hwaddr gpa);
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int cgs_mig_savevm_state_pause(QEMUFile *f);
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int cgs_mig_savevm_state_end(QEMUFile *f);
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int cgs_mig_savevm_state_ram_abort(QEMUFile *f, hwaddr gfn_end);
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void cgs_mig_savevm_state_cleanup(void);
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int cgs_mig_loadvm_state_setup(QEMUFile *f);
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int cgs_mig_loadvm_state(QEMUFile *f, uint32_t channel_id);
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void cgs_mig_loadvm_state_cleanup(void);
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int cgs_mig_multifd_send_prepare(MultiFDSendParams *p, Error **errp);
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int cgs_mig_multifd_recv_pages(MultiFDRecvParams *p, Error **errp);
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uint32_t cgs_mig_iov_num(uint32_t page_batch_num);
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void cgs_mig_init(void);
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void tdx_mig_init(CgsMig *cgs_mig);
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#endif
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