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spapr/xive: Deduce the SpaprXive pointer from XiveTCTX::xptr

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And use it instead of reaching out to the machine. This allows to get rid
of a call to qdev_get_machine() and to reduce the scope of another one so
that it is only used within the argument list of error_append_hint(). This
is an acceptable tradeoff compared to all it would require to know about
the maximum number of CPUs here without calling qdev_get_machine().

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200106145645.4539-10-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2020-01-06 15:56:42 +01:00 committed by David Gibson
parent 479509463b
commit 74e51a38f7
1 changed files with 4 additions and 5 deletions
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9
hw/intc/spapr_xive_kvm.c
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@ -75,7 +75,7 @@ static void kvm_cpu_disable_all(void)
void kvmppc_xive_cpu_set_state(XiveTCTX *tctx, Error **errp)
{
SpaprXive *xive = SPAPR_MACHINE(qdev_get_machine())->xive;
SpaprXive *xive = SPAPR_XIVE(tctx->xptr);
uint64_t state[2];
int ret;
@ -97,7 +97,7 @@ void kvmppc_xive_cpu_set_state(XiveTCTX *tctx, Error **errp)
void kvmppc_xive_cpu_get_state(XiveTCTX *tctx, Error **errp)
{
SpaprXive *xive = SPAPR_MACHINE(qdev_get_machine())->xive;
SpaprXive *xive = SPAPR_XIVE(tctx->xptr);
uint64_t state[2] = { 0 };
int ret;
@ -152,8 +152,7 @@ void kvmppc_xive_cpu_synchronize_state(XiveTCTX *tctx, Error **errp)
void kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp)
{
MachineState *ms = MACHINE(qdev_get_machine());
SpaprXive *xive = SPAPR_MACHINE(ms)->xive;
SpaprXive *xive = SPAPR_XIVE(tctx->xptr);
unsigned long vcpu_id;
int ret;
@ -179,7 +178,7 @@ void kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp)
vcpu_id, strerror(errno));
if (errno == ENOSPC) {
error_append_hint(&local_err, "Try -smp maxcpus=N with N < %u\n",
ms->smp.max_cpus);
MACHINE(qdev_get_machine())->smp.max_cpus);
}
error_propagate(errp, local_err);
return;