On Tue, Jul 21, 2009 at 04:06:10PM -0700, Saksena, Abhishek wrote: > Would also like to mention I am not using Qemu and building some basic IO > models around KVM (only using libkvm.h) > > -Abhishek > ________________________________ > From: Saksena, Abhishek > Sent: Tuesday, July 21, 2009 11:13 AM > To: kvm@vger.kernel.org > Subject: VGA address mapping? > > Hi > I am implementing a VGA Device model. The model provides functions to > read/write VGA memory space. > > Just for testing I want to capture memory reads/writes to addresses > 0xA0000->0xC0000 and forward it to my VGA model. > > > I have used following function to create physical ram > > int kvm_create ( > kvm_context_t<file:///C:/Documents%20and%20Settings/asaksena/Desktop/march_onwards/kvmsocket/doc/htmlkvm/structkvm__context.html> > kvm, > unsigned long phys_mem_bytes, > void ** phys_mem > ) > > The function comments says that this creates a new virtual machine, maps > physical RAM to it, and creates a virtual CPU for it. Memory gets mapped for > addresses 0->0xA0000, 0xC0000->phys_mem_bytes. > This indeed what comment says, but looking at the code I don't see it using phys_mem_bytes/phys_mem parameters at all.
Look at QEMU code how memory is created. > > > I was expecting mimio read/write callbacks to capture transactions between > 0xA0000->0xC0000 but I don't see that happening. > > > > My question is how I can configure KVM to forward me reads/writes for VGA > address space? > > > > > > Thanks > > Abhishek > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
