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bh=0tT6pTTej2yatf8fMzxJfzoh3zO+2aZRpKmOqKc2NEI=; b=E1Y2Bizxfz5yGhWK6U06tCg6Jdm62PLnEXYV59A+5Pk8haW3w24ZNhzyqwwi8edTie5l/q Vnwl1K6QeQD1ST+XOVfwbeybKzmaHrZMQx1oZRMYqbF146QG+80nAdcibqARLEQLoWkMyT 1RftfB/9pSr5OXw78jwmHWNVJWwEz3w= X-MC-Unique: YTlNrsZcPoyRQjVv2YomWA-1 From: Vitaly Kuznetsov To: qemu-devel@nongnu.org Subject: [PATCH RFC v3 05/23] i386: move hyperv_interface_id initialization to x86_cpu_realizefn() Date: Fri, 9 Oct 2020 14:18:24 +0200 Message-Id: <20201009121842.1938010-6-vkuznets@redhat.com> In-Reply-To: <20201009121842.1938010-1-vkuznets@redhat.com> References: <20201009121842.1938010-1-vkuznets@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=vkuznets@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" As a preparation to expanding Hyper-V CPU features early, move hyperv_interface_id initialization to x86_cpu_realizefn(). Signed-off-by: Vitaly Kuznetsov --- target/i386/cpu.c | 6 ++++++ target/i386/cpu.h | 1 + target/i386/kvm.c | 18 ++++++++++++------ 3 files changed, 19 insertions(+), 6 deletions(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index ce485dd9afd9..52e050a7785c 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -6507,6 +6507,12 @@ static void x86_cpu_hyperv_realize(X86CPU *cpu) 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] =3D 0x31237648; + cpu->hyperv_interface_id[1] =3D 0; + cpu->hyperv_interface_id[2] =3D 0; + cpu->hyperv_interface_id[3] =3D 0; } =20 static void x86_cpu_realizefn(DeviceState *dev, Error **errp) diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 2e7ee40372de..d49e34a80a34 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1661,6 +1661,7 @@ struct X86CPU { bool hyperv_passthrough; OnOffAuto hyperv_no_nonarch_cs; uint32_t hyperv_vendor_id[3]; + uint32_t hyperv_interface_id[4]; =20 bool check_cpuid; bool enforce_cpuid; diff --git a/target/i386/kvm.c b/target/i386/kvm.c index 75d4cb17a5ba..eec0a7e31315 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -1173,7 +1173,6 @@ static int hyperv_handle_properties(CPUState *cs, CPUX86State *env =3D &cpu->env; struct kvm_cpuid2 *cpuid; struct kvm_cpuid_entry2 *c; - uint32_t signature[3]; uint32_t cpuid_i =3D 0; int r; =20 @@ -1217,6 +1216,14 @@ static int hyperv_handle_properties(CPUState *cs, cpu->hyperv_vendor_id[2] =3D c->edx; } =20 + c =3D cpuid_find_entry(cpuid, HV_CPUID_INTERFACE, 0); + if (c) { + cpu->hyperv_interface_id[0] =3D c->eax; + cpu->hyperv_interface_id[1] =3D c->ebx; + cpu->hyperv_interface_id[2] =3D c->ecx; + cpu->hyperv_interface_id[3] =3D c->edx; + } + c =3D cpuid_find_entry(cpuid, HV_CPUID_FEATURES, 0); if (c) { env->features[FEAT_HYPERV_EAX] =3D c->eax; @@ -1299,11 +1306,10 @@ static int hyperv_handle_properties(CPUState *cs, =20 c =3D &cpuid_ent[cpuid_i++]; c->function =3D HV_CPUID_INTERFACE; - memcpy(signature, "Hv#1\0\0\0\0\0\0\0\0", 12); - c->eax =3D signature[0]; - c->ebx =3D 0; - c->ecx =3D 0; - c->edx =3D 0; + c->eax =3D cpu->hyperv_interface_id[0]; + c->ebx =3D cpu->hyperv_interface_id[1]; + c->ecx =3D cpu->hyperv_interface_id[2]; + c->edx =3D cpu->hyperv_interface_id[3]; =20 c =3D &cpuid_ent[cpuid_i++]; c->function =3D HV_CPUID_VERSION; --=20 2.25.4