kernel.git/arch/arm/kvm/hyp, branch linux-4.8.y

ARM: KVM: Use common version of timer-sr.c

2016-02-29T18:34:19Z

Using the common HYP timer code is a bit more tricky, since we use system register names. Nothing a set of macros cannot work around... Acked-by: Christoffer Dall Signed-off-by: Marc Zyngier

ARM: KVM: Use common version of vgic-v2-sr.c

2016-02-29T18:34:19Z

No need to keep our own private version, the common one is strictly identical. Acked-by: Christoffer Dall Signed-off-by: Marc Zyngier

ARM: KVM: Move kvm/hyp/hyp.h to include/asm/kvm_hyp.h

2016-02-29T18:34:18Z

In order to be able to use the code located in virt/kvm/arm/hyp, we need to make the global hyp.h file accessible from include/asm, similar to what we did for arm64. Acked-by: Christoffer Dall Signed-off-by: Marc Zyngier

ARM: KVM: Remove __weak attributes

2016-02-29T18:34:15Z

Now that the old code is long gone, we can remove all the weak attributes, as there is only one version of the code. Acked-by: Christoffer Dall Signed-off-by: Marc Zyngier

ARM: KVM: Switch to C-based stage2 init

2016-02-29T18:34:14Z

As we now have hooks to setup VTCR from C code, let's drop the original VTCR setup and reimplement it as part of the HYP code. Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier

ARM: KVM: Add panic handling code

2016-02-29T18:34:14Z

Instead of spinning forever, let's "properly" handle any unexpected exception ("properly" meaning "print a spat on the console and die"). This has proved useful quite a few times... Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier

ARM: KVM: Add HYP mode entry code

2016-02-29T18:34:14Z

This part is almost entierely borrowed from the existing code, just slightly simplifying the HYP function call (as we now save SPSR_hyp in the world switch). Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier

ARM: KVM: Add populating of fault data structure

2016-02-29T18:34:14Z

On guest exit, we must take care of populating our fault data structure so that the host code can handle it. This includes resolving the IPA for permission faults, which can result in restarting the guest. Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier

ARM: KVM: Add the new world switch implementation

2016-02-29T18:34:14Z

The new world switch implementation is modeled after the arm64 one, calling the various save/restore functions in turn, and having as little state as possible. Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier

ARM: KVM: Add VFP lazy save/restore handler

2016-02-29T18:34:14Z

Similar to the arm64 version, add the code that deals with VFP traps, re-enabling VFP, save/restoring the registers and resuming the guest. Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier