diff options
| author | Eric Farman <farman@linux.ibm.com> | 2026-04-01 18:12:18 +0300 |
|---|---|---|
| committer | Janosch Frank <frankja@linux.ibm.com> | 2026-04-02 16:37:01 +0300 |
| commit | b0ad874d9852967dafdb94b1632e0732e01e6cd8 (patch) | |
| tree | 951571e96489bf727bbbd5a36a146b625ab12201 /arch/s390/include | |
| parent | 1653545abc6835ab723c02697a5e2964e98e2c53 (diff) | |
| download | linux-b0ad874d9852967dafdb94b1632e0732e01e6cd8.tar.xz | |
KVM: s390: vsie: Allow non-zarch guests
Linux/KVM runs in z/Architecture-only mode. Although z/Architecture
is built upon a long history of hardware refinements, any other
CPU mode is not permitted.
Allow a userspace to explicitly enable the use of ESA mode for
nested guests, otherwise usage will be rejected.
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index 64a50f0862aa..b58faad8a7ce 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -656,6 +656,7 @@ struct kvm_arch { int user_stsi; int user_instr0; int user_operexec; + int allow_vsie_esamode; struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; wait_queue_head_t ipte_wq; int ipte_lock_count; |