Re: [PATCH v5 23/46] pci: Allow the video BIOS to work in SPL with QEMU

Hi Bin, On Mon, 17 Jul 2023 at 00:20, Bin Meng wrote: > > Hi Simon, > > On Sun, Jul 16, 2023 at 11:39 AM Simon Glass wrote: > > > > QEMU emulates two common machines (Q35 and i440fx) which use mapping to > > determine whether RAM is present below 1MB. In order to copy the video > > BIOS to c

Re: [PATCH v5 23/46] pci: Allow the video BIOS to work in SPL with QEMU

Hi Simon, On Sun, Jul 16, 2023 at 11:39 AM Simon Glass wrote: > > QEMU emulates two common machines (Q35 and i440fx) which use mapping to > determine whether RAM is present below 1MB. In order to copy the video > BIOS to c we need to flip this mapping over to RAM. This does not > happen autom

[PATCH v5 23/46] pci: Allow the video BIOS to work in SPL with QEMU

QEMU emulates two common machines (Q35 and i440fx) which use mapping to determine whether RAM is present below 1MB. In order to copy the video BIOS to c we need to flip this mapping over to RAM. This does not happen automatically until SPL has finished running. Switch in RAM at these address s