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s390x/kvm: pass the SIGP instruction parameter to the SIGP handler

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The parameter of the SIGP instruction will be neded in the future. Let's read it
out and store it in the struct sigp_info, so it can be passed to the sigp
handlers.

Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Message-Id: <1424783731-43426-4-git-send-email-jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
David Hildenbrand 2015-02-24 14:15:24 +01:00 committed by Christian Borntraeger
parent 6eb8f212d2
commit 22740e3fc0
1 changed files with 6 additions and 2 deletions
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8
target-s390x/kvm.c
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@ -1113,6 +1113,7 @@ static int handle_diag(S390CPU *cpu, struct kvm_run *run, uint32_t ipb)
typedef struct SigpInfo {
S390CPU *cpu;
uint64_t param;
int cc;
uint64_t *status_reg;
} SigpInfo;
@ -1174,10 +1175,11 @@ static void sigp_cpu_reset(void *arg)
}
static int handle_sigp_single_dst(S390CPU *dst_cpu, uint8_t order,
uint64_t *status_reg)
uint64_t param, uint64_t *status_reg)
{
SigpInfo si = {
.cpu = dst_cpu,
.param = param,
.status_reg = status_reg,
};
@ -1218,6 +1220,7 @@ static int handle_sigp(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1)
int ret;
uint8_t order;
uint64_t *status_reg;
uint64_t param;
S390CPU *dst_cpu = NULL;
cpu_synchronize_state(CPU(cpu));
@ -1225,6 +1228,7 @@ static int handle_sigp(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1)
/* get order code */
order = decode_basedisp_rs(env, run->s390_sieic.ipb) & SIGP_ORDER_MASK;
status_reg = &env->regs[r1];
param = (r1 % 2) ? env->regs[r1] : env->regs[r1 + 1];
switch (order) {
case SIGP_SET_ARCH:
@ -1235,7 +1239,7 @@ static int handle_sigp(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1)
default:
/* all other sigp orders target a single vcpu */
dst_cpu = s390_cpu_addr2state(env->regs[r3]);
ret = handle_sigp_single_dst(dst_cpu, order, status_reg);
ret = handle_sigp_single_dst(dst_cpu, order, param, status_reg);
}
if (ret >= 0) {