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[PATCH v3 13/19] i386: switch hyperv_expand_features() to using error_se
From: |
Vitaly Kuznetsov |
Subject: |
[PATCH v3 13/19] i386: switch hyperv_expand_features() to using error_setg() |
Date: |
Thu, 7 Jan 2021 16:14:33 +0100 |
Use standard error_setg() mechanism in hyperv_expand_features().
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
target/i386/kvm/kvm.c | 101 +++++++++++++++++++++++++-----------------
1 file changed, 61 insertions(+), 40 deletions(-)
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index a6320aeb2699..d259916ccf85 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -1138,7 +1138,7 @@ 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;
@@ -1152,20 +1152,18 @@ 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;
@@ -1212,13 +1210,12 @@ 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] =
@@ -1264,37 +1261,60 @@ 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;
- }
-
- if (r) {
- return -ENOSYS;
+ error_setg(errp, "Hyper-V %s requires Hyper-V %s",
+ kvm_hyperv_properties[HYPERV_FEAT_SYNIC].desc,
+ kvm_hyperv_properties[HYPERV_FEAT_VPINDEX].desc);
}
-
- return 0;
}
/*
@@ -1529,9 +1549,10 @@ 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)) {
--
2.29.2
- [PATCH v3 04/19] i386: invert hyperv_spinlock_attempts setting logic with hv_passthrough, (continued)
- [PATCH v3 04/19] i386: invert hyperv_spinlock_attempts setting logic with hv_passthrough, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 03/19] i386: keep hyperv_vendor string up-to-date, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 05/19] i386: always fill Hyper-V CPUID feature leaves from X86CPU data, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 06/19] i386: stop using env->features[] for filling Hyper-V CPUIDs, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 07/19] i386: introduce hyperv_feature_supported(), Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 08/19] i386: introduce hv_cpuid_get_host(), Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 09/19] i386: drop FEAT_HYPERV feature leaves, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 10/19] i386: introduce hv_cpuid_cache, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 11/19] i386: split hyperv_handle_properties() into hyperv_expand_features()/hyperv_fill_cpuids(), Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 12/19] i386: move eVMCS enablement to hyperv_init_vcpu(), Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 13/19] i386: switch hyperv_expand_features() to using error_setg(),
Vitaly Kuznetsov <=
- [PATCH v3 14/19] i386: adjust the expected KVM_GET_SUPPORTED_HV_CPUID array size, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 15/19] i386: prefer system KVM_GET_SUPPORTED_HV_CPUID ioctl over vCPU's one, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 16/19] i386: use global kvm_state in hyperv_enabled() check, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 17/19] i386: expand Hyper-V features during CPU feature expansion time, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 18/19] i386: provide simple 'hv-default=on' option, Vitaly Kuznetsov, 2021/01/07