q_resource_requirements(9)

💖 q_resource_requirements(9) 💖

okay so this page is from the Kernel API Manual, and the main character is q_resource_requirements(9). She's a tiny completion-time function, and we are keeping every single detail, bestie — no crumbs left behind. 🍓✨

🌸 NAME 🌸

q_resource_requirements — Query Resource Requirements. Periodt. 💅

🦋 SYNOPSIS 🦋

void q_resource_requirements (void *context , struct pci_response *resp
, int resp_packet_size );

🎀 ARGUMENTS 🎀

• context — the completion context. Yep, that's the whole note. 🫶
• resp — the response that came from the host. Iconic host behavior. 🌈
• resp_packet_size — the size in bytes of resp. Bytes, specifically. 🔥

💜 DESCRIPTION 💜

This function is invoked on completion of a Query Resource Requirements packet. That's the moment: a Query Resource Requirements packet completes, and q_resource_requirements() gets invoked. The manpage does not add any extra lore beyond that, and honestly? We respect the mystery. 😭

🌟 SEE ALSO 🌟

The SEE ALSO section points at the kernel file ./drivers/pci/controller/pci-hyperv.c, then lists this whole extended universe of (9) references. Every single one is here, in the same order — no cap:

• struct hv_msi_desc(9)
• struct hv_msi_desc2(9)
• struct tran_int_desc(9)
• hv_irq_retarget_interrupt(9)
• hv_pci_generic_compl(9)
• devfn_to_wslot(9)
• wslot_to_devfn(9)
• _hv_pcifront_read_config(9)
• _hv_pcifront_write_config(9)
• hv_pcifront_read_config(9)
• hv_pcifront_write_config(9)
• hv_pci_read_config_compl(9)
• hv_read_config_block(9)
• hv_pci_write_config_compl(9)
• hv_write_config_block(9)
• hv_register_block_invalidate(9)
• hv_msi_free(9)
• hv_compose_msi_msg(9)
• hv_pcie_init_irq_domain(9)
• get_bar_size(9)
• survey_child_resources(9)
• prepopulate_bars(9)
• create_root_hv_pci_bus(9)
• new_pcichild_device(9)
• get_pcichild_wslot(9)
• pci_devices_present_work(9)
• hv_pci_start_relations_work(9)
• hv_pci_devices_present(9)
• hv_pci_devices_present2(9)
• hv_eject_device_work(9)
• hv_pci_eject_device(9)
• hv_pci_onchannelcallback(9)
• hv_pci_protocol_negotiation(9)
• hv_pci_free_bridge_windows(9)
• hv_pci_allocate_bridge_windows(9)
• hv_allocate_config_window(9)
• hv_pci_enter_d0(9)
• hv_pci_query_relations(9)
• hv_send_resources_allocated(9)
• hv_send_resources_released(9)
• hv_pci_probe(9)
• hv_pci_remove(9)

Signed off with source/version vibes from ./drivers/pci/controller, dated October 2026. That's the footer, and we made it cute. 💖🎀🦋