X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=target-i386%2Fkvm.c;h=1188482359f929a1225b9f016efdcfaa07acdc48;hb=30c367ed446b6ea53245589a5cf373578ac075d7;hp=58f7bb790990e824d447a62aaa89a1b7895c0a3f;hpb=7477cd3897082d2650d520a4e9aa7f8affa3dd5d;p=qemu.git

diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 58f7bb790..118848235 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -31,7 +31,7 @@
 #include "hw/i386/pc.h"
 #include "hw/i386/apic.h"
 #include "exec/ioport.h"
-#include "hyperv.h"
+#include <asm/hyperv.h>
 #include "hw/pci/pci.h"
 
 //#define DEBUG_KVM
@@ -424,6 +424,22 @@ unsigned long kvm_arch_vcpu_id(CPUState *cs)
     return cpu->env.cpuid_apic_id;
 }
 
+#ifndef KVM_CPUID_SIGNATURE_NEXT
+#define KVM_CPUID_SIGNATURE_NEXT                0x40000100
+#endif
+
+static bool hyperv_hypercall_available(X86CPU *cpu)
+{
+    return cpu->hyperv_vapic ||
+           (cpu->hyperv_spinlock_attempts != HYPERV_SPINLOCK_NEVER_RETRY);
+}
+
+static bool hyperv_enabled(X86CPU *cpu)
+{
+    return hyperv_hypercall_available(cpu) ||
+           cpu->hyperv_relaxed_timing;
+}
+
 #define KVM_MAX_CPUID_ENTRIES  100
 
 int kvm_arch_init_vcpu(CPUState *cs)
@@ -440,13 +456,14 @@ int kvm_arch_init_vcpu(CPUState *cs)
     uint32_t signature[3];
     int r;
 
+    memset(&cpuid_data, 0, sizeof(cpuid_data));
+
     cpuid_i = 0;
 
     /* Paravirtualization CPUIDs */
     c = &cpuid_data.entries[cpuid_i++];
-    memset(c, 0, sizeof(*c));
     c->function = KVM_CPUID_SIGNATURE;
-    if (!hyperv_enabled()) {
+    if (!hyperv_enabled(cpu)) {
         memcpy(signature, "KVMKVMKVM\0\0\0", 12);
         c->eax = 0;
     } else {
@@ -458,50 +475,44 @@ int kvm_arch_init_vcpu(CPUState *cs)
     c->edx = signature[2];
 
     c = &cpuid_data.entries[cpuid_i++];
-    memset(c, 0, sizeof(*c));
     c->function = KVM_CPUID_FEATURES;
     c->eax = env->features[FEAT_KVM];
 
-    if (hyperv_enabled()) {
+    if (hyperv_enabled(cpu)) {
         memcpy(signature, "Hv#1\0\0\0\0\0\0\0\0", 12);
         c->eax = signature[0];
 
         c = &cpuid_data.entries[cpuid_i++];
-        memset(c, 0, sizeof(*c));
         c->function = HYPERV_CPUID_VERSION;
         c->eax = 0x00001bbc;
         c->ebx = 0x00060001;
 
         c = &cpuid_data.entries[cpuid_i++];
-        memset(c, 0, sizeof(*c));
         c->function = HYPERV_CPUID_FEATURES;
-        if (hyperv_relaxed_timing_enabled()) {
+        if (cpu->hyperv_relaxed_timing) {
             c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE;
         }
-        if (hyperv_vapic_recommended()) {
+        if (cpu->hyperv_vapic) {
             c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE;
             c->eax |= HV_X64_MSR_APIC_ACCESS_AVAILABLE;
         }
 
         c = &cpuid_data.entries[cpuid_i++];
-        memset(c, 0, sizeof(*c));
         c->function = HYPERV_CPUID_ENLIGHTMENT_INFO;
-        if (hyperv_relaxed_timing_enabled()) {
+        if (cpu->hyperv_relaxed_timing) {
             c->eax |= HV_X64_RELAXED_TIMING_RECOMMENDED;
         }
-        if (hyperv_vapic_recommended()) {
+        if (cpu->hyperv_vapic) {
             c->eax |= HV_X64_APIC_ACCESS_RECOMMENDED;
         }
-        c->ebx = hyperv_get_spinlock_retries();
+        c->ebx = cpu->hyperv_spinlock_attempts;
 
         c = &cpuid_data.entries[cpuid_i++];
-        memset(c, 0, sizeof(*c));
         c->function = HYPERV_CPUID_IMPLEMENT_LIMITS;
         c->eax = 0x40;
         c->ebx = 0x40;
 
         c = &cpuid_data.entries[cpuid_i++];
-        memset(c, 0, sizeof(*c));
         c->function = KVM_CPUID_SIGNATURE_NEXT;
         memcpy(signature, "KVMKVMKVM\0\0\0", 12);
         c->eax = 0;
@@ -1186,11 +1197,11 @@ static int kvm_put_msrs(X86CPU *cpu, int level)
             kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_GLOBAL_CTRL,
                               env->msr_global_ctrl);
         }
-        if (hyperv_hypercall_available()) {
+        if (hyperv_hypercall_available(cpu)) {
             kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_GUEST_OS_ID, 0);
             kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_HYPERCALL, 0);
         }
-        if (hyperv_vapic_recommended()) {
+        if (cpu->hyperv_vapic) {
             kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_APIC_ASSIST_PAGE, 0);
         }
         if (has_msr_feature_control) {
@@ -1298,8 +1309,8 @@ static int kvm_get_xcrs(X86CPU *cpu)
 
     for (i = 0; i < xcrs.nr_xcrs; i++) {
         /* Only support xcr0 now */
-        if (xcrs.xcrs[0].xcr == 0) {
-            env->xcr0 = xcrs.xcrs[0].value;
+        if (xcrs.xcrs[i].xcr == 0) {
+            env->xcr0 = xcrs.xcrs[i].value;
             break;
         }
     }
@@ -1735,7 +1746,7 @@ static int kvm_guest_debug_workarounds(X86CPU *cpu)
      */
     if (reinject_trap ||
         (!kvm_has_robust_singlestep() && cs->singlestep_enabled)) {
-        ret = kvm_update_guest_debug(env, reinject_trap);
+        ret = kvm_update_guest_debug(cs, reinject_trap);
     }
     return ret;
 }