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authorAndrey Smetanin <asmetanin@virtuozzo.com>2015-09-16 12:59:43 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2015-10-12 18:29:26 +0200
commit8c145d7ca9b4267d2ec1eabe801c6b2aee636f1f (patch)
tree6801e7c3df9b34007d6dcdc54ae37ac1a1ffe15f
parent744b8a9440fa2bd78ae64861667337439e25a6dc (diff)
target-i386/kvm: set Hyper-V features cpuid bit HV_X64_MSR_VP_INDEX_AVAILABLE
Hyper-V features bit HV_X64_MSR_VP_INDEX_AVAILABLE value is based on cpu option "hv-vpindex" and kernel support of HV_X64_MSR_VP_INDEX. Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Richard Henderson <rth@twiddle.net> CC: Eduardo Habkost <ehabkost@redhat.com> CC: "Andreas Färber" <afaerber@suse.de> CC: Marcelo Tosatti <mtosatti@redhat.com> Message-Id: <1442397584-16698-3-git-send-email-den@openvz.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--target-i386/cpu-qom.h1
-rw-r--r--target-i386/cpu.c1
-rw-r--r--target-i386/kvm.c11
3 files changed, 12 insertions, 1 deletions
diff --git a/target-i386/cpu-qom.h b/target-i386/cpu-qom.h
index ed8fd18457..8b5439b9d1 100644
--- a/target-i386/cpu-qom.h
+++ b/target-i386/cpu-qom.h
@@ -91,6 +91,7 @@ typedef struct X86CPU {
bool hyperv_time;
bool hyperv_crash;
bool hyperv_reset;
+ bool hyperv_vpindex;
bool check_cpuid;
bool enforce_cpuid;
bool expose_kvm;
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 230ecf42fd..741b94e9cd 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -3141,6 +3141,7 @@ static Property x86_cpu_properties[] = {
DEFINE_PROP_BOOL("hv-time", X86CPU, hyperv_time, false),
DEFINE_PROP_BOOL("hv-crash", X86CPU, hyperv_crash, false),
DEFINE_PROP_BOOL("hv-reset", X86CPU, hyperv_reset, false),
+ DEFINE_PROP_BOOL("hv-vpindex", X86CPU, hyperv_vpindex, false),
DEFINE_PROP_BOOL("check", X86CPU, check_cpuid, false),
DEFINE_PROP_BOOL("enforce", X86CPU, enforce_cpuid, false),
DEFINE_PROP_BOOL("kvm", X86CPU, expose_kvm, true),
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 401a2f3c3f..4d5ff9a253 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -83,6 +83,7 @@ static bool has_msr_hv_vapic;
static bool has_msr_hv_tsc;
static bool has_msr_hv_crash;
static bool has_msr_hv_reset;
+static bool has_msr_hv_vpindex;
static bool has_msr_mtrr;
static bool has_msr_xss;
@@ -462,7 +463,8 @@ static bool hyperv_enabled(X86CPU *cpu)
cpu->hyperv_time ||
cpu->hyperv_relaxed_timing ||
cpu->hyperv_crash ||
- cpu->hyperv_reset);
+ cpu->hyperv_reset ||
+ cpu->hyperv_vpindex);
}
static Error *invtsc_mig_blocker;
@@ -534,6 +536,9 @@ int kvm_arch_init_vcpu(CPUState *cs)
if (cpu->hyperv_reset && has_msr_hv_reset) {
c->eax |= HV_X64_MSR_RESET_AVAILABLE;
}
+ if (cpu->hyperv_vpindex && has_msr_hv_vpindex) {
+ c->eax |= HV_X64_MSR_VP_INDEX_AVAILABLE;
+ }
c = &cpuid_data.entries[cpuid_i++];
c->function = HYPERV_CPUID_ENLIGHTMENT_INFO;
if (cpu->hyperv_relaxed_timing) {
@@ -866,6 +871,10 @@ static int kvm_get_supported_msrs(KVMState *s)
has_msr_hv_reset = true;
continue;
}
+ if (kvm_msr_list->indices[i] == HV_X64_MSR_VP_INDEX) {
+ has_msr_hv_vpindex = true;
+ continue;
+ }
}
}