| Message ID | 1378904393-29101-2-git-send-email-anup.patel@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, Sep 11, 2013 at 06:29:52PM +0530, Anup Patel wrote: > 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 <anup.patel@linaro.org> > Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org> > --- > 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(); as I commented on the other patch I think we should try to think of a better name and this shouldn't be a VCPU ioctl. > 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 >
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)