Re: [PATCH v5] hw/pci-host: save/restore pci host config register for old ones

> On Tue, Jul 28, 2020 at 11:27:09AM +0800, Hogan Wang wrote: > > The i440fx and q35 machines integrate i440FX or MCH PCI device by default. > > Refer to i440FX and ICH9-LPC spcifications, there are some reserved > > configuration registers can used to save/restore PCIHostState.config_reg. > > It'

Re: [PATCH v5] hw/pci-host: save/restore pci host config register for old ones

* Michael S. Tsirkin (m...@redhat.com) wrote: > On Tue, Jul 28, 2020 at 11:27:09AM +0800, Hogan Wang wrote: > > The i440fx and q35 machines integrate i440FX or MCH PCI device by default. > > Refer to i440FX and ICH9-LPC spcifications, there are some reserved > > configuration registers can used to

Re: [PATCH v5] hw/pci-host: save/restore pci host config register for old ones

On Tue, Jul 28, 2020 at 11:27:09AM +0800, Hogan Wang wrote: > The i440fx and q35 machines integrate i440FX or MCH PCI device by default. > Refer to i440FX and ICH9-LPC spcifications, there are some reserved > configuration registers can used to save/restore PCIHostState.config_reg. > It's nasty but

[PATCH v5] hw/pci-host: save/restore pci host config register for old ones

The i440fx and q35 machines integrate i440FX or MCH PCI device by default. Refer to i440FX and ICH9-LPC spcifications, there are some reserved configuration registers can used to save/restore PCIHostState.config_reg. It's nasty but friendly to old ones. Reproducer steps: step 1. Make modifications