Re: [edk2-devel] [edk2] [PATCH] OvmfPkg: prevent 64-bit MMIO BAR degradation if there is no CSM

2019-06-20 Thread David Woodhouse
On Thu, 2019-06-20 at 14:57 +0200, Laszlo Ersek wrote: > (updating Ray's email) > > On 06/20/19 00:19, David Woodhouse wrote: > > > > > the driver is thoroughly commented. See especially the > > > DriverInitialize() function. Can you determine which one(s) of those > > > statements doesn't /

Re: [edk2-devel] [edk2] [PATCH] OvmfPkg: prevent 64-bit MMIO BAR degradation if there is no CSM

2019-06-20 Thread Laszlo Ersek
(updating Ray's email) On 06/20/19 00:19, David Woodhouse wrote: > >> the driver is thoroughly commented. See especially the >> DriverInitialize() function. Can you determine which one(s) of those >> statements doesn't / don't hold any longer? >> >> Or maybe IncompatiblePciDeviceSupportDxe works

Re: [edk2-devel] [edk2] [PATCH] OvmfPkg: prevent 64-bit MMIO BAR degradation if there is no CSM

2019-06-19 Thread David Woodhouse
> the driver is thoroughly commented. See especially the > DriverInitialize() function. Can you determine which one(s) of those > statements doesn't / don't hold any longer? > > Or maybe IncompatiblePciDeviceSupportDxe works as before, but commit > 065ae7d717f9 ("MdeModulePkg/PciBusDxe: make

Re: [edk2-devel] [edk2] [PATCH] OvmfPkg: prevent 64-bit MMIO BAR degradation if there is no CSM

2019-06-19 Thread Laszlo Ersek
Hi David, On 06/19/19 14:50, David Woodhouse wrote: > On Thu, 2016-05-19 at 00:12 +0200, Laszlo Ersek wrote: >> According to edk2 commit >> >> "MdeModulePkg/PciBus: do not improperly degrade resource" >> >> and to the EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL definition in the >> Platform

Re: [edk2-devel] [edk2] [PATCH] OvmfPkg: prevent 64-bit MMIO BAR degradation if there is no CSM

2019-06-19 Thread David Woodhouse
On Thu, 2016-05-19 at 00:12 +0200, Laszlo Ersek wrote: > According to edk2 commit > > "MdeModulePkg/PciBus: do not improperly degrade resource" > > and to the EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL definition in the > Platform Init 1.4a specification, a platform can provide such a