vbg_set_sess...event_filter(9)

💅 vbg_set_sess...event_filter(9)

okay so this is from the Kernel API Manual bestie, and it's literally all about vbg_set_session_event_filter 🦋

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✨ NAME ✨

vbg_set_session_event_filter — this one changes the event filter mask for the given session. that's it, that's the whole vibe 🎀

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🌸 SYNOPSIS 🌸

int vbg_set_session_event_filter (struct vbg_dev *gdev , struct vbg_session *session , u32 or_mask , u32 not_mask , bool session_termination );

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💖 ARGUMENTS 💖

• gdev — the Guest extension device. main character energy, lowkey 🫶
• session — the session. yeah. THE session 💅
• or_mask — the events to add. get them in here ✨
• not_mask — the events to remove. get them out of here 💀
• session_termination — set this if we're being called by the session cleanup code. it tweaks the error handling so we do proper session cleanup even if the host misbehaves 🙈 (host acting up? not on our watch)

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🔥 DESCRIPTION 🔥

so this gets called in response to VBG_IOCTL_CHANGE_FILTER_MASK, and it also gets called to do session cleanup. and bestie: it takes the session mutex. noted. important. 🔒

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⭐ RETURN ⭐

0 or a negative errno value. iykyk 😭

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🌈 SEE ALSO 🌈

Kernel file ./drivers/virt/vboxguest/vboxguest_core.c

• vbg_guest_mappings_init(9)
• vbg_guest_mappings_exit(9)
• vbg_report_guest_info(9)
• vbg_report_driver_status(9)
• vbg_balloon_inflate(9)
• vbg_balloon_deflate(9)
• vbg_heartbeat_host_config(9)
• vbg_heartbeat_init(9)
• vbg_heartbeat_exit(9)
• vbg_track_bit_usage(9)
• vbg_reset_host_event_filter(9)
• vbg_reset_host_capabilities(9)
• vbg_set_host_capabilities(9)
• vbg_acquire_session_capabilities(9)
• vbg_set_session_capabilities(9)
• vbg_query_host_version(9)
• vbg_core_init(9)
• vbg_core_exit(9)
• vbg_core_open_session(9)
• vbg_core_close_session(9)
• vbg_req_allowed(9)
• vbg_core_ioctl(9)
• vbg_core_set_mouse_status(9)

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okay that's the whole page, go read the source bestie 🧚

sign-off era: this lives at ./drivers/virt/vboxguest, dated October 2026, and the page itself is vbg_set_sess...event_filter(9) — periodt 💜🍓👑