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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2016-06-21 14:19:51 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2016-07-18 14:15:00 +0200 |
| commit | 6502a34cfd6695929086187f63fe670cc3050e68 (patch) | |
| tree | 774e386aac358c15baeeba02a38bb8b080e3887d /arch/s390/include/asm | |
| parent | af1bae5497b98cb99d6b0492e6981f060420a00c (diff) | |
| download | blackbird-op-linux-6502a34cfd6695929086187f63fe670cc3050e68.tar.gz blackbird-op-linux-6502a34cfd6695929086187f63fe670cc3050e68.zip | |
KVM: s390: allow user space to handle instr 0x0000
We will use illegal instruction 0x0000 for handling 2 byte sw breakpoints
from user space. As it can be enabled dynamically via a capability,
let's move setting of ICTL_OPEREXC to the post creation step, so we avoid
any races when enabling that capability just while adding new cpus.
Acked-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm')
| -rw-r--r-- | arch/s390/include/asm/kvm_host.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index 946fc86202fd..183b01727de4 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -43,6 +43,7 @@ /* s390-specific vcpu->requests bit members */ #define KVM_REQ_ENABLE_IBS 8 #define KVM_REQ_DISABLE_IBS 9 +#define KVM_REQ_ICPT_OPEREXC 10 #define SIGP_CTRL_C 0x80 #define SIGP_CTRL_SCN_MASK 0x3f @@ -666,6 +667,7 @@ struct kvm_arch{ int user_cpu_state_ctrl; int user_sigp; int user_stsi; + int user_instr0; struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; wait_queue_head_t ipte_wq; int ipte_lock_count; |
