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KVM: s390: protvirt: Add initial vm and cpu lifecycle handling

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This contains 3 main changes:
1. changes in SIE control block handling for secure guests
2. helper functions for create/destroy/unpack secure guests
3. KVM_S390_PV_COMMAND ioctl to allow userspace dealing with secure
machines

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
[borntraeger@de.ibm.com: patch merging, splitting, fixing]
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
Janosch Frank
2019-09-30 04:19:18 -04:00
committed by Christian Borntraeger
parent 6933316fe0
commit 29b40f105e
7 changed files with 635 additions and 4 deletions
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31
include/uapi/linux/kvm.h
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@@ -1478,6 +1478,37 @@ struct kvm_enc_region {
#define KVM_S390_NORMAL_RESET _IO(KVMIO, 0xc3)
#define KVM_S390_CLEAR_RESET _IO(KVMIO, 0xc4)
struct kvm_s390_pv_sec_parm {
__u64 origin;
__u64 length;
};
struct kvm_s390_pv_unp {
__u64 addr;
__u64 size;
__u64 tweak;
};
enum pv_cmd_id {
KVM_PV_ENABLE,
KVM_PV_DISABLE,
KVM_PV_SET_SEC_PARMS,
KVM_PV_UNPACK,
KVM_PV_VERIFY,
};
struct kvm_pv_cmd {
__u32 cmd; /* Command to be executed */
__u16 rc; /* Ultravisor return code */
__u16 rrc; /* Ultravisor return reason code */
__u64 data; /* Data or address */
__u32 flags; /* flags for future extensions. Must be 0 for now */
__u32 reserved[3];
};
/* Available with KVM_CAP_S390_PROTECTED */
#define KVM_S390_PV_COMMAND _IOWR(KVMIO, 0xc5, struct kvm_pv_cmd)
/* Secure Encrypted Virtualization command */
enum sev_cmd_id {
/* Guest initialization commands */