From 1a9167a214f560a23c5050ce6dfebae489528f0d Mon Sep 17 00:00:00 2001 From: Fabiano Rosas Date: Wed, 19 Jun 2019 13:01:27 -0300 Subject: KVM: PPC: Report single stepping capability When calling the KVM_SET_GUEST_DEBUG ioctl, userspace might request the next instruction to be single stepped via the KVM_GUESTDBG_SINGLESTEP control bit of the kvm_guest_debug structure. This patch adds the KVM_CAP_PPC_GUEST_DEBUG_SSTEP capability in order to inform userspace about the state of single stepping support. We currently don't have support for guest single stepping implemented in Book3S HV so the capability is only present for Book3S PR and BookE. Signed-off-by: Fabiano Rosas Signed-off-by: Paul Mackerras --- include/uapi/linux/kvm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 52641d8ca9e8..ce8cfcc51aec 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1000,6 +1000,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_PMU_EVENT_FILTER 173 #define KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 174 #define KVM_CAP_HYPERV_DIRECT_TLBFLUSH 175 +#define KVM_CAP_PPC_GUEST_DEBUG_SSTEP 176 #ifdef KVM_CAP_IRQ_ROUTING -- cgit v1.2.3 From 22945688acd4d0ec2620b0670a53110401ed9c59 Mon Sep 17 00:00:00 2001 From: Bharata B Rao Date: Mon, 25 Nov 2019 08:36:30 +0530 Subject: KVM: PPC: Book3S HV: Support reset of secure guest Add support for reset of secure guest via a new ioctl KVM_PPC_SVM_OFF. This ioctl will be issued by QEMU during reset and includes the the following steps: - Release all device pages of the secure guest. - Ask UV to terminate the guest via UV_SVM_TERMINATE ucall - Unpin the VPA pages so that they can be migrated back to secure side when guest becomes secure again. This is required because pinned pages can't be migrated. - Reinit the partition scoped page tables After these steps, guest is ready to issue UV_ESM call once again to switch to secure mode. Signed-off-by: Bharata B Rao Signed-off-by: Sukadev Bhattiprolu [Implementation of uv_svm_terminate() and its call from guest shutdown path] Signed-off-by: Ram Pai [Unpinning of VPA pages] Signed-off-by: Paul Mackerras --- include/uapi/linux/kvm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index e6f17c8e2dba..f0a16b4adbbd 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1348,6 +1348,7 @@ struct kvm_s390_ucas_mapping { #define KVM_PPC_GET_CPU_CHAR _IOR(KVMIO, 0xb1, struct kvm_ppc_cpu_char) /* Available with KVM_CAP_PMU_EVENT_FILTER */ #define KVM_SET_PMU_EVENT_FILTER _IOW(KVMIO, 0xb2, struct kvm_pmu_event_filter) +#define KVM_PPC_SVM_OFF _IO(KVMIO, 0xb3) /* ioctl for vm fd */ #define KVM_CREATE_DEVICE _IOWR(KVMIO, 0xe0, struct kvm_create_device) -- cgit v1.2.3