On Mon, May 11, 2015 at 09:26:08PM +0200, Michael S. Tsirkin wrote: > On Mon, May 11, 2015 at 11:56:44AM -0700, Sean O. Stalley wrote: > > PCI Enhanced Allocation is a new method of allocating MMIO & IO > > resources for PCI devices & bridges. It can be used instead > > of the traditional PCI method of using BARs. > > > > EA entries are hardware-initialized to a fixed address. > > Unlike BARs, regions described by EA are cannot be moved. > > Because of this, only devices which are perminately connected to > > the PCI bus can use EA. A removeable PCI card must not use EA. > > > > This patchset enables any existing QEMU PCI model to use EA in leiu of > > BARs. It adds EA options to the PCI device paramaters. > > > > The Enhanced Allocation ECN is publicly available here: > > https://www.pcisig.com/specifications/conventional/ECN_Enhanced_Allocation_23_Oct_2014_Final.pdf > > > > Signed-off-by: Sean O. Stalley <sean.stal...@intel.com> > > > I will review this, thanks. Will you also be sending a seabios patch to > support these registers? When you do, please Cc me.
Thanks Michael, I wasn't planning on sending a seabios patch. I do have some EDKII/OVMF patches I hope to send out soon. I will Cc you on those. -Sean > > > > --- > > hw/pci/Makefile.objs | 2 +- > > hw/pci/pci.c | 96 ++++++++++++++++------ > > hw/pci/pci_ea.c | 203 > > ++++++++++++++++++++++++++++++++++++++++++++++ > > include/hw/pci/pci.h | 7 ++ > > include/hw/pci/pci_ea.h | 39 +++++++++ > > include/hw/pci/pci_regs.h | 4 + > > include/qemu/typedefs.h | 1 + > > 7 files changed, 328 insertions(+), 24 deletions(-) > > create mode 100644 hw/pci/pci_ea.c > > create mode 100644 include/hw/pci/pci_ea.h
