diff options
| author | Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> | 2013-06-19 17:27:15 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2013-08-30 12:48:25 +0200 |
| commit | 268846ba93de2529630d623b6ded72cee1221106 (patch) | |
| tree | e1315fefaa27f40dbc08af86577d72308d85bb50 /target-s390x/kvm.c | |
| parent | 39fbc5c62ce83f34e7f5b62238305d83ce8b4489 (diff) | |
s390/kvm: basic implementation of diagnose 308 subcode 6
Linux uses a check for subcode 6 to decide if other subcodes are
available. Provide a minimal implementation for subcode 6, as well
as for subcode 5.
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
[Move code from kvm.c into misc_helper.c]
Diffstat (limited to 'target-s390x/kvm.c')
| -rw-r--r-- | target-s390x/kvm.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c index ed80154e0d..c7fcdfa882 100644 --- a/target-s390x/kvm.c +++ b/target-s390x/kvm.c @@ -72,6 +72,7 @@ #define PRIV_XSCH 0x76 #define PRIV_SQBS 0x8a #define PRIV_EQBS 0x9c +#define DIAG_IPL 0x308 #define DIAG_KVM_HYPERCALL 0x500 #define DIAG_KVM_BREAKPOINT 0x501 @@ -578,11 +579,24 @@ static int handle_hypercall(S390CPU *cpu, struct kvm_run *run) return 0; } +static void kvm_handle_diag_308(S390CPU *cpu, struct kvm_run *run) +{ + uint64_t r1, r3; + + cpu_synchronize_state(CPU(cpu)); + r1 = (run->s390_sieic.ipa & 0x00f0) >> 8; + r3 = run->s390_sieic.ipa & 0x000f; + handle_diag_308(&cpu->env, r1, r3); +} + static int handle_diag(S390CPU *cpu, struct kvm_run *run, int ipb_code) { int r = 0; switch (ipb_code) { + case DIAG_IPL: + kvm_handle_diag_308(cpu, run); + break; case DIAG_KVM_HYPERCALL: r = handle_hypercall(cpu, run); break; |