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| author |   Janosch Frank <frankja@linux.vnet.ibm.com> | 2016-05-23 15:11:58 +0200 |
|---|---|---|
| committer |   Christian Borntraeger <borntraeger@de.ibm.com> | 2016-06-10 12:07:12 +0200 |
| commit | 95ca2cb57985b07f5b136405f80a5106f5b06641 (patch) | |
| tree | 0e3ebb4d35641e5ba0d09ea6bc9208a17877b54a /arch/s390/kvm/kvm-s390.h | |
| parent | KVM: s390: Extend diag 204 fields (diff) | |
| download | linux-dev-95ca2cb57985b07f5b136405f80a5106f5b06641.tar.xz linux-dev-95ca2cb57985b07f5b136405f80a5106f5b06641.zip | |
KVM: s390: Add sthyi emulation
Store Hypervisor Information is an emulated z/VM instruction that
provides a guest with basic information about the layers it is running
on. This includes information about the cpu configuration of both the
machine and the lpar, as well as their names, machine model and
machine type. This information enables an application to determine the
maximum capacity of CPs and IFLs available to software.
The instruction is available whenever the facility bit 74 is set,
otherwise executing it results in an operation exception.
It is important to check the validity flags in the sections before
using data from any structure member. It is not guaranteed that all
members will be valid on all machines / machine configurations.
Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.h')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index 8621ab00ec8e..c5ec4d31e5e3 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -250,6 +250,9 @@ int kvm_s390_handle_eb(struct kvm_vcpu *vcpu); int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu); int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu); +/* implemented in sthyi.c */ +int handle_sthyi(struct kvm_vcpu *vcpu); + /* implemented in kvm-s390.c */ void kvm_s390_set_tod_clock(struct kvm *kvm, u64 tod); long kvm_arch_fault_in_page(struct kvm_vcpu *vcpu, gpa_t gpa, int writable); |