On Fri, Jan 06, 2023 at 08:39:38PM +0000, Pedro Falcato wrote: > On Fri, Jan 6, 2023 at 2:04 PM Gerd Hoffmann <kra...@redhat.com> wrote: > > > Add new operation mode to PlatformScanOrAdd64BitE820Ram() which checks > > whenever any reservations from the qemu e820 table overlap with the mmio > > window. Should that be the case move it to avoid the conflict. > > > Hi, > > In what case could this happen? Does QEMU ever place e820 entries inside > the PCI MMIO window? Why?
Well, the *firmware* picks where it places the PCI MMIO window. So it's not qemu creating a conflict ;) > (In fact, when does QEMU even add a reservation in the e820? I've never > seen one.) New enough qemu adds a reservation just below 1TB when running on AMD processors (or emulating one with tcg). That window is used by the iommu. take care, Gerd -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#98172): https://edk2.groups.io/g/devel/message/98172 Mute This Topic: https://groups.io/mt/96093486/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
