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Headers in include/sysemu/ are not only related to system *emulation*, they are also used by virtualization. Rename as system/ which is clearer. Files renamed manually then mechanical change using sed tool. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Lei Yang <leiyang@redhat.com> Message-Id: <20241203172445.28576-1-philmd@linaro.org>
76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
/*
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* Virtio Support
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*
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* Copyright IBM, Corp. 2007-2008
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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* Rusty Russell <rusty@rustcorp.com.au>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef QEMU_VIRTIO_BALLOON_H
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#define QEMU_VIRTIO_BALLOON_H
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#include "standard-headers/linux/virtio_balloon.h"
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#include "hw/virtio/virtio.h"
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#include "system/iothread.h"
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#include "qom/object.h"
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#define TYPE_VIRTIO_BALLOON "virtio-balloon-device"
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OBJECT_DECLARE_SIMPLE_TYPE(VirtIOBalloon, VIRTIO_BALLOON)
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#define VIRTIO_BALLOON_FREE_PAGE_HINT_CMD_ID_MIN 0x80000000
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typedef struct virtio_balloon_stat VirtIOBalloonStat;
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typedef struct virtio_balloon_stat_modern {
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uint16_t tag;
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uint8_t reserved[6];
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uint64_t val;
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} VirtIOBalloonStatModern;
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enum virtio_balloon_free_page_hint_status {
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FREE_PAGE_HINT_S_STOP = 0,
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FREE_PAGE_HINT_S_REQUESTED = 1,
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FREE_PAGE_HINT_S_START = 2,
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FREE_PAGE_HINT_S_DONE = 3,
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};
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struct VirtIOBalloon {
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VirtIODevice parent_obj;
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VirtQueue *ivq, *dvq, *svq, *free_page_vq, *reporting_vq;
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uint32_t free_page_hint_status;
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uint32_t num_pages;
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uint32_t actual;
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uint32_t free_page_hint_cmd_id;
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uint64_t stats[VIRTIO_BALLOON_S_NR];
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VirtQueueElement *stats_vq_elem;
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size_t stats_vq_offset;
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QEMUTimer *stats_timer;
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IOThread *iothread;
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QEMUBH *free_page_bh;
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/*
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* Lock to synchronize threads to access the free page reporting related
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* fields (e.g. free_page_hint_status).
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*/
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QemuMutex free_page_lock;
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QemuCond free_page_cond;
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/*
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* Set to block iothread to continue reading free page hints as the VM is
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* stopped.
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*/
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bool block_iothread;
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NotifierWithReturn free_page_hint_notify;
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int64_t stats_last_update;
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int64_t stats_poll_interval;
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uint32_t host_features;
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bool qemu_4_0_config_size;
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uint32_t poison_val;
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};
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#endif
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