From mboxrd@z Thu Jan 1 00:00:00 1970 From: anup.patel@linaro.org (Anup Patel) Date: Wed, 11 Sep 2013 18:29:52 +0530 Subject: [PATCH 1/2] ARM/ARM64: KVM: Implement KVM_ARM_SUITABLE_TARGET ioctl In-Reply-To: <1378904393-29101-1-git-send-email-anup.patel@linaro.org> References: <1378904393-29101-1-git-send-email-anup.patel@linaro.org> Message-ID: <1378904393-29101-2-git-send-email-anup.patel@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org For implementing CPU=host, we need a mechanism for querying VCPU target type suitable to underlying Host. This patch implements KVM_ARM_SUITABLE_TARGET ioctl which return output of kvm_arm_target() to user space for KVM ARM and KVM ARM64. Signed-off-by: Anup Patel Signed-off-by: Pranavkumar Sawargaonkar --- arch/arm/kvm/arm.c | 2 ++ include/uapi/linux/kvm.h | 1 + 2 files changed, 3 insertions(+) diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index 9c697db..4bdc2e1 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -715,6 +715,8 @@ long kvm_arch_vcpu_ioctl(struct file *filp, return kvm_vcpu_set_target(vcpu, &init); } + case KVM_ARM_SUITABLE_TARGET: + return kvm_target_cpu(); case KVM_SET_ONE_REG: case KVM_GET_ONE_REG: { struct kvm_one_reg reg; diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 99c2533..8285daa 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1012,6 +1012,7 @@ struct kvm_s390_ucas_mapping { /* VM is being stopped by host */ #define KVM_KVMCLOCK_CTRL _IO(KVMIO, 0xad) #define KVM_ARM_VCPU_INIT _IOW(KVMIO, 0xae, struct kvm_vcpu_init) +#define KVM_ARM_SUITABLE_TARGET _IO(KVMIO, 0xaf) #define KVM_GET_REG_LIST _IOWR(KVMIO, 0xb0, struct kvm_reg_list) #define KVM_DEV_ASSIGN_ENABLE_IOMMU (1 << 0) -- 1.7.9.5