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s390: sclp base support

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This adds a more generic infrastructure for handling Service-Call
requests on s390. Currently we only support a small subset of Read
SCP Info directly in target-s390x. This patch provides the base
infrastructure for supporting more commands and moves Read SCP
Info.
In the future we could add additional commands for hotplug, call
home and event handling.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinz Graalfs 2012-10-29 02:13:22 +00:00 • committed by Alexander Graf
parent 5b08b344bf
commit f6c98f9286
6 changed files with 198 additions and 60 deletions
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5
target-s390x/kvm.c
View file

@ -60,9 +60,6 @@
#define SIGP_STORE_STATUS_ADDR 0x0e
#define SIGP_SET_ARCH 0x12
#define SCLP_CMDW_READ_SCP_INFO 0x00020001
#define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001
const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
KVM_CAP_LAST_INFO
};
@ -344,7 +341,7 @@ static int kvm_sclp_service_call(CPUS390XState *env, struct kvm_run *run,
sccb = env->regs[ipbh0 & 0xf];
code = env->regs[(ipbh0 & 0xf0) >> 4];
r = sclp_service_call(env, sccb, code);
r = sclp_service_call(sccb, code);
if (r < 0) {
enter_pgmcheck(env, -r);
}