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i386: switch hyperv_expand_features() to using error_setg() 

Use standard error_setg() mechanism in hyperv_expand_features().

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20210422161130.652779-12-vkuznets@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Vitaly Kuznetsov 2021-04-22 18:11:22 +02:00 committed by Eduardo Habkost
parent decb4f2013
commit f4a62495be
1 changed files with 61 additions and 40 deletions
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101
target/i386/kvm/kvm.c
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@ -1136,7 +1136,7 @@ static bool hyperv_feature_supported(CPUState *cs, int feature)
return true;
}
static int hv_cpuid_check_and_set(CPUState *cs, int feature)
static int hv_cpuid_check_and_set(CPUState *cs, int feature, Error **errp)
{
X86CPU *cpu = X86_CPU(cs);
uint64_t deps;
@ -1150,20 +1150,18 @@ static int hv_cpuid_check_and_set(CPUState *cs, int feature)
while (deps) {
dep_feat = ctz64(deps);
if (!(hyperv_feat_enabled(cpu, dep_feat))) {
fprintf(stderr,
"Hyper-V %s requires Hyper-V %s\n",
kvm_hyperv_properties[feature].desc,
kvm_hyperv_properties[dep_feat].desc);
return 1;
error_setg(errp, "Hyper-V %s requires Hyper-V %s",
kvm_hyperv_properties[feature].desc,
kvm_hyperv_properties[dep_feat].desc);
return 1;
}
deps &= ~(1ull << dep_feat);
}
if (!hyperv_feature_supported(cs, feature)) {
if (hyperv_feat_enabled(cpu, feature)) {
fprintf(stderr,
"Hyper-V %s is not supported by kernel\n",
kvm_hyperv_properties[feature].desc);
error_setg(errp, "Hyper-V %s is not supported by kernel",
kvm_hyperv_properties[feature].desc);
return 1;
} else {
return 0;
@ -1210,13 +1208,12 @@ static uint32_t hv_build_cpuid_leaf(CPUState *cs, uint32_t func, int reg)
* of 'hv_passthrough' mode and fills the environment with all supported
* Hyper-V features.
*/
static int hyperv_expand_features(CPUState *cs)
static void hyperv_expand_features(CPUState *cs, Error **errp)
{
X86CPU *cpu = X86_CPU(cs);
int r;
if (!hyperv_enabled(cpu))
return 0;
return;
if (cpu->hyperv_passthrough) {
cpu->hyperv_vendor_id[0] =
@ -1263,37 +1260,60 @@ static int hyperv_expand_features(CPUState *cs)
}
/* Features */
r = hv_cpuid_check_and_set(cs, HYPERV_FEAT_RELAXED);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_VAPIC);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_TIME);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_CRASH);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_RESET);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_VPINDEX);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_RUNTIME);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_SYNIC);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_STIMER);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_FREQUENCIES);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_REENLIGHTENMENT);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_TLBFLUSH);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_EVMCS);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_IPI);
r |= hv_cpuid_check_and_set(cs, HYPERV_FEAT_STIMER_DIRECT);
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_RELAXED, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_VAPIC, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_TIME, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_CRASH, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_RESET, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_VPINDEX, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_RUNTIME, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_SYNIC, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_STIMER, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_FREQUENCIES, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_REENLIGHTENMENT, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_TLBFLUSH, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_EVMCS, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_IPI, errp)) {
return;
}
if (hv_cpuid_check_and_set(cs, HYPERV_FEAT_STIMER_DIRECT, errp)) {
return;
}
/* Additional dependencies not covered by kvm_hyperv_properties[] */
if (hyperv_feat_enabled(cpu, HYPERV_FEAT_SYNIC) &&
!cpu->hyperv_synic_kvm_only &&
!hyperv_feat_enabled(cpu, HYPERV_FEAT_VPINDEX)) {
fprintf(stderr, "Hyper-V %s requires Hyper-V %s\n",
kvm_hyperv_properties[HYPERV_FEAT_SYNIC].desc,
kvm_hyperv_properties[HYPERV_FEAT_VPINDEX].desc);
r |= 1;
error_setg(errp, "Hyper-V %s requires Hyper-V %s",
kvm_hyperv_properties[HYPERV_FEAT_SYNIC].desc,
kvm_hyperv_properties[HYPERV_FEAT_VPINDEX].desc);
}
if (r) {
return -ENOSYS;
}
return 0;
}
/*
@ -1528,9 +1548,10 @@ int kvm_arch_init_vcpu(CPUState *cs)
env->apic_bus_freq = KVM_APIC_BUS_FREQUENCY;
/* Paravirtualization CPUIDs */
r = hyperv_expand_features(cs);
if (r < 0) {
return r;
hyperv_expand_features(cs, &local_err);
if (local_err) {
error_report_err(local_err);
return -ENOSYS;
}
if (hyperv_enabled(cpu)) {