vmw_port_hb_in(9)

okay bestie, welcome to the vmw_port_hb_in(9) page from the Kernel API Manual — this one is short, sweet, and very “the port is porting.” 💅

💖 NAME 💖

vmw_port_hb_in — receive the message payload either through the high-bandwidth port when it’s available, or through the backdoor otherwise. it’s giving “two routes, one payload.” 🦋

✨ SYNOPSIS ✨

the signature, no cap:

unsigned long vmw_port_hb_in (struct rpc_channel *channel , char *reply
, unsigned long reply_len , bool hb );

🎀 ARGUMENTS 🎀

• channel — the rpc channel. that’s the one.
• reply — pointer to the buffer holding the reply. hold the reply, bestie.
• reply_len — length of the reply. yes, the length. 💅
• hb — whether the high-bandwidth port is available.

🌈 RETURN 🌈

The port status. that’s what comes back, periodt. ✨

🔥 SEE ALSO 🔥

go be nosy in these, iykyk:

• Kernel file ./drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
• vmw_open_channel(9)
• vmw_close_channel(9)
• vmw_port_hb_out(9)
• vmw_send_msg(9)
• vmw_recv_msg(9)
• vmw_host_get_guestinfo(9)
• vmw_host_printf(9)
• vmw_msg_ioctl(9)
• reset_ppn_array(9)
• hypervisor_ppn_reset_all(9)
• hypervisor_ppn_add(9)
• hypervisor_ppn_remove(9)
• mksstat_init_record_time(9)
• mksstat_init_kern_id(9)
• vmw_mksstat_get_kern_slot(9)
• vmw_mksstat_cleanup_descriptor(9)
• vmw_mksstat_remove_all(9)
• vmw_mksstat_reset_ioctl(9)
• vmw_mksstat_add_ioctl(9)
• vmw_mksstat_remove_ioctl(9)
• vmw_disable_backdoor(9)

mwah 💋 — this lil’ page is from the source/version ./drivers/gpu/drm/vmwgfx, dated October 2026, and it signs off as vmw_port_hb_in(9). bye bestie, go receive that payload! 🫶💖