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[PATCH v5 01/17] i386: keep hyperv_vendor string up-to-date
From: |
Vitaly Kuznetsov |
Subject: |
[PATCH v5 01/17] i386: keep hyperv_vendor string up-to-date |
Date: |
Mon, 1 Mar 2021 14:50:47 +0100 |
When cpu->hyperv_vendor is not set manually we default to "Microsoft Hv"
and in 'hv_passthrough' mode we get the information from the host. This
information is stored in cpu->hyperv_vendor_id[] array but we don't update
cpu->hyperv_vendor string so e.g. QMP's query-cpu-model-expansion output
is incorrect.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
target/i386/cpu.c | 19 +++++++++----------
target/i386/kvm/kvm.c | 5 +++++
2 files changed, 14 insertions(+), 10 deletions(-)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 6a53446e6a56..ee094877d7a1 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -6653,17 +6653,16 @@ static void x86_cpu_hyperv_realize(X86CPU *cpu)
/* Hyper-V vendor id */
if (!cpu->hyperv_vendor) {
- memcpy(cpu->hyperv_vendor_id, "Microsoft Hv", 12);
- } else {
- len = strlen(cpu->hyperv_vendor);
-
- if (len > 12) {
- warn_report("hv-vendor-id truncated to 12 characters");
- len = 12;
- }
- memset(cpu->hyperv_vendor_id, 0, 12);
- memcpy(cpu->hyperv_vendor_id, cpu->hyperv_vendor, len);
+ object_property_set_str(OBJECT(cpu), "hv-vendor-id", "Microsoft Hv",
+ &error_abort);
+ }
+ len = strlen(cpu->hyperv_vendor);
+ if (len > 12) {
+ warn_report("hv-vendor-id truncated to 12 characters");
+ len = 12;
}
+ memset(cpu->hyperv_vendor_id, 0, 12);
+ memcpy(cpu->hyperv_vendor_id, cpu->hyperv_vendor, len);
/* 'Hv#1' interface identification*/
cpu->hyperv_interface_id[0] = 0x31237648;
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index 0b5755e42b87..8e9ae7522582 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -1215,6 +1215,11 @@ static int hyperv_handle_properties(CPUState *cs,
cpu->hyperv_vendor_id[0] = c->ebx;
cpu->hyperv_vendor_id[1] = c->ecx;
cpu->hyperv_vendor_id[2] = c->edx;
+ cpu->hyperv_vendor = g_realloc(cpu->hyperv_vendor,
+ sizeof(cpu->hyperv_vendor_id) + 1);
+ memcpy(cpu->hyperv_vendor, cpu->hyperv_vendor_id,
+ sizeof(cpu->hyperv_vendor_id));
+ cpu->hyperv_vendor[sizeof(cpu->hyperv_vendor_id)] = 0;
}
c = cpuid_find_entry(cpuid, HV_CPUID_INTERFACE, 0);
--
2.29.2
- [PATCH v5 00/17] i386: KVM: expand Hyper-V features early and provide simple 'hv-default=on' option, Vitaly Kuznetsov, 2021/03/01
- [PATCH v5 01/17] i386: keep hyperv_vendor string up-to-date,
Vitaly Kuznetsov <=
- [PATCH v5 02/17] i386: invert hyperv_spinlock_attempts setting logic with hv_passthrough, Vitaly Kuznetsov, 2021/03/01
- [PATCH v5 03/17] i386: always fill Hyper-V CPUID feature leaves from X86CPU data, Vitaly Kuznetsov, 2021/03/01
- [PATCH v5 04/17] i386: stop using env->features[] for filling Hyper-V CPUIDs, Vitaly Kuznetsov, 2021/03/01
- [PATCH v5 05/17] i386: introduce hyperv_feature_supported(), Vitaly Kuznetsov, 2021/03/01
- [PATCH v5 06/17] i386: introduce hv_cpuid_get_host(), Vitaly Kuznetsov, 2021/03/01
- [PATCH v5 07/17] i386: drop FEAT_HYPERV feature leaves, Vitaly Kuznetsov, 2021/03/01
- [PATCH v5 09/17] i386: split hyperv_handle_properties() into hyperv_expand_features()/hyperv_fill_cpuids(), Vitaly Kuznetsov, 2021/03/01
- [PATCH v5 08/17] i386: introduce hv_cpuid_cache, Vitaly Kuznetsov, 2021/03/01
- [PATCH v5 10/17] i386: move eVMCS enablement to hyperv_init_vcpu(), Vitaly Kuznetsov, 2021/03/01
- [PATCH v5 11/17] i386: switch hyperv_expand_features() to using error_setg(), Vitaly Kuznetsov, 2021/03/01