函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\apic\x2apic_uv_x.c Create Date:2022-07-27 09:33:29
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Direct Legacy VGA I/O traffic to designated IOH

函数原型：static int uv_set_vga_state(struct pci_dev *pdev, bool decode, unsigned int command_bits, unsigned int flags)

返回类型：int

参数：

类型参数名称
struct pci_dev *pdev
booldecode
unsigned intcommand_bits
unsigned intflags
1116  如果非flags按位与PCI_VGA_STATE_CHANGE_BRIDGE的值则返回:0
1119  如果command_bits按位与Enable response in I/O space 的值恒等于0则返回:0
1122  domain等于pci_domain_nr(bus)
1123  bus等于number
1125  rc等于uv_bios_set_legacy_vga_target(decode, domain, bus)
1127  返回:rc