On 24 April 2014 18:54, Peter Maydell <peter.maydell@xxxxxxxxxx> wrote: > This patchset wires up our new Cortex-A57 emulation into > the "virt" machine model. Rather than the somewhat hacky > approach in the previous system emulation patchsets, I've > decided that our best approach is to have the board model > create the GIC itself. This essentially corresponds to > modelling a board with a standalone GIC -- you can see > this in some real hardware which uses a GIC-400. I think > this makes more sense than either borrowing the a15mpcore_priv > device, or creating an a57mpcore_priv device (since the A57 > does not actually have a built-in GICv2). > > To handle hosts with 64K pages in KVM mode, we need to > amke sure our GIC puts its GICC and GICD at 64K boundaries > (so that the host kernel can map a 64K host page with the > host GICV in as the guest GICC). > > For consistency, we make the 'virt' machine's GIC the > same for all supported CPUs; 32 bit CPUs don't need > the 64K spacing, but they don't object to it either, and > it's simpler to use the same memory map for everything > rather than fiddle with it based on CPU features. > > Peter Maydell (3): > hw/arm/virt: Create the GIC ourselves rather than (ab)using > a15mpcore_priv > hw/arm/virt: Put GIC register banks on 64K boundaries > hw/arm/virt: Add support for Cortex-A57 > > hw/arm/virt.c | 93 +++++++++++++++++++++++++++++++++++++++-------------------- > 1 file changed, 61 insertions(+), 32 deletions(-) Applying to target-arm.next... thanks -- PMM _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
