In AArch64, guest will read the same values of the ID regsiters with host. Both of them read the values from arm64_ftr_regs. This patch series add support to emulate and configure ID registers so that we can control the value of ID registers that guest read. Peng Liang (4): arm64: add a helper function to traverse arm64_ftr_regs kvm: arm64: emulate the ID registers kvm: arm64: make ID registers configurable kvm: arm64: add KVM_CAP_ARM_CPU_FEATURE extension arch/arm64/include/asm/cpufeature.h | 2 ++ arch/arm64/include/asm/kvm_host.h | 2 ++ arch/arm64/kernel/cpufeature.c | 13 ++++++++ arch/arm64/kvm/arm.c | 21 ++++++++++++ arch/arm64/kvm/sys_regs.c | 50 ++++++++++++++++++++++------- include/uapi/linux/kvm.h | 12 +++++++ 6 files changed, 89 insertions(+), 11 deletions(-) -- 2.18.4
