[Qemu-devel] 撤回: Why we need redirect the access to bar0 through the PCI config space access function

wuzongyong (A) 将撤回邮件“Why we need redirect the access to bar0 through the PCI config space access function”。

[Qemu-devel] Why we need redirect the access to bar0 through the PCI config space access function

Hi, I’m testing gpu passthrough on KVM with NVIDIA gpu card(M60, 10de:13f2) based on vfio. And I noticed the function vfio_nvidia_bar0_mirror_quirk in qemu/hw/vfio/pci-quirks.c, could someone please explain the aim of these codes in detail to me? I don’t think it is necessary if we don’t need r