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KVM: s390: Add KVM_CAP_S390_PROTECTED_DUMP

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The capability indicates dump support for protected VMs.

Signed-off-by: Janosch Frank <[email protected]>
Reviewed-by: Claudio Imbrenda <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Message-Id: <[email protected]>
Signed-off-by: Christian Borntraeger <[email protected]>
This commit is contained in:
Janosch Frank authored and Christian Borntraeger committed 2022-06-01 16:57:14 +02:00
1 parent 8aba09588d
commit e9bf3acb23
2 files changed
+21
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arch/s390/kvm/kvm-s390.c
+20
View File
@@ -606,6 +606,26 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_S390_PROTECTED:
r = is_prot_virt_host();
break;
case KVM_CAP_S390_PROTECTED_DUMP: {
u64 pv_cmds_dump[] = {
BIT_UVC_CMD_DUMP_INIT,
BIT_UVC_CMD_DUMP_CONFIG_STOR_STATE,
BIT_UVC_CMD_DUMP_CPU,
BIT_UVC_CMD_DUMP_COMPLETE,
};
int i;
r = is_prot_virt_host();
for (i = 0; i < ARRAY_SIZE(pv_cmds_dump); i++) {
if (!test_bit_inv(pv_cmds_dump[i],
(unsigned long *)&uv_info.inst_calls_list)) {
r = 0;
break;
}
}
break;
}
default:
r = 0;
}
include/uapi/linux/kvm.h
+1
View File
@@ -1157,6 +1157,7 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_VM_TSC_CONTROL 214
#define KVM_CAP_SYSTEM_EVENT_DATA 215
#define KVM_CAP_ARM_SYSTEM_SUSPEND 216
#define KVM_CAP_S390_PROTECTED_DUMP 217
#ifdef KVM_CAP_IRQ_ROUTING