Now that the arm64 rewrite is in mainline, I've taken a stab at fixing the 32bit code the same way. This is fairly straightforward (once you've been through it once...), with a few patches that adapt the code to be similar to the 64bit version. Note that the timer and GIC code should be made common between the two architectures, as this is litterally the exact same code. I'm opened to suggestionsin that area, as we've never shared code that runs at HYP so far. This has been tested on a Dual A7, and the code is pushed on a branch: git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git kvm-arm/wsinc M. Marc Zyngier (27): ARM: KVM: Move the HYP code to its own section ARM: KVM: Remove __kvm_hyp_code_start/__kvm_hyp_code_end ARM: KVM: Move VFP registers to a CPU context structure ARM: KVM: Move CP15 array into the CPU context structure ARM: KVM: Move GP registers into the CPU context structure ARM: KVM: Add a HYP-specific header file ARM: KVM: Add system register accessor macros ARM: KVM: Add TLB invalidation code ARM: KVM: Add CP15 save/restore code ARM: KVM: Add timer save/restore ARM: KVM: Add vgic v2 save/restore ARM: KVM: Add VFP save/restore ARM: KVM: Add banked registers save/restore ARM: KVM: Add guest entry code ARM: KVM: Add VFP lazy save/restore handler ARM: KVM: Add the new world switch implementation ARM: KVM: Add populating of fault data structure ARM: KVM: Add HYP mode entry code ARM: KVM: Add panic handling code ARM: KVM: Change kvm_call_hyp return type to unsigned long ARM: KVM: Remove the old world switch ARM: KVM: Remove __weak attributes ARM: KVM: Turn CP15 defines to an enum ARM: KVM: Cleanup asm-offsets.c ARM: KVM: Remove unused hyp_pc field ARM: KVM: Remove handling of ARM_EXCEPTION_DATA/PREF_ABORT ARM: KVM: Remove __kvm_hyp_exit/__kvm_hyp_exit_end arch/arm/include/asm/kvm_asm.h | 39 +-- arch/arm/include/asm/kvm_emulate.h | 15 +- arch/arm/include/asm/kvm_host.h | 60 +++- arch/arm/include/asm/kvm_mmu.h | 2 +- arch/arm/include/asm/virt.h | 4 + arch/arm/kernel/asm-offsets.c | 40 +-- arch/arm/kernel/vmlinux.lds.S | 6 + arch/arm/kvm/Makefile | 1 + arch/arm/kvm/arm.c | 2 +- arch/arm/kvm/coproc.c | 52 +-- arch/arm/kvm/coproc.h | 16 +- arch/arm/kvm/emulate.c | 34 +- arch/arm/kvm/guest.c | 5 +- arch/arm/kvm/handle_exit.c | 7 - arch/arm/kvm/hyp/Makefile | 13 + arch/arm/kvm/hyp/banked-sr.c | 77 +++++ arch/arm/kvm/hyp/cp15-sr.c | 84 +++++ arch/arm/kvm/hyp/entry.S | 101 ++++++ arch/arm/kvm/hyp/hyp-entry.S | 169 ++++++++++ arch/arm/kvm/hyp/hyp.h | 128 ++++++++ arch/arm/kvm/hyp/switch.c | 228 +++++++++++++ arch/arm/kvm/hyp/timer-sr.c | 71 ++++ arch/arm/kvm/hyp/tlb.c | 71 ++++ arch/arm/kvm/hyp/vfp.S | 68 ++++ arch/arm/kvm/hyp/vgic-v2-sr.c | 84 +++++ arch/arm/kvm/interrupts.S | 480 +-------------------------- arch/arm/kvm/interrupts_head.S | 648 ------------------------------------- arch/arm/kvm/reset.c | 2 +- arch/arm64/include/asm/kvm_asm.h | 3 - 29 files changed, 1225 insertions(+), 1285 deletions(-) create mode 100644 arch/arm/kvm/hyp/Makefile create mode 100644 arch/arm/kvm/hyp/banked-sr.c create mode 100644 arch/arm/kvm/hyp/cp15-sr.c create mode 100644 arch/arm/kvm/hyp/entry.S create mode 100644 arch/arm/kvm/hyp/hyp-entry.S create mode 100644 arch/arm/kvm/hyp/hyp.h create mode 100644 arch/arm/kvm/hyp/switch.c create mode 100644 arch/arm/kvm/hyp/timer-sr.c create mode 100644 arch/arm/kvm/hyp/tlb.c create mode 100644 arch/arm/kvm/hyp/vfp.S create mode 100644 arch/arm/kvm/hyp/vgic-v2-sr.c delete mode 100644 arch/arm/kvm/interrupts_head.S -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
