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break; case KVM_CAP_ADJUST_CLOCK: @@ -4204,6 +4205,11 @@ long kvm_arch_vm_ioctl(struct file *filp, r = 0; break; } + case KVM_WRITE_PROTECT_ALL_MEM: { + kvm_mmu_write_protect_all_pages(kvm, !!arg); + r = 0; + break; + } case KVM_ENABLE_CAP: { struct kvm_enable_cap cap; diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 577429a..7d4a395 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -895,6 +895,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_SPAPR_TCE_VFIO 142 #define KVM_CAP_X86_GUEST_MWAIT 143 #define KVM_CAP_ARM_USER_IRQ 144 +#define KVM_CAP_X86_WRITE_PROTECT_ALL_MEM 145 #ifdef KVM_CAP_IRQ_ROUTING @@ -1144,6 +1145,7 @@ struct kvm_vfio_spapr_tce { struct kvm_userspace_memory_region) #define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47) #define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64) +#define KVM_WRITE_PROTECT_ALL_MEM _IO(KVMIO, 0x49) /* enable ucontrol for s390 */ struct kvm_s390_ucas_mapping {