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0a122b |
From 6d78a7906b69054a4798b1b68548f59fec9e5da8 Mon Sep 17 00:00:00 2001
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0a122b |
From: Vadim Rozenfeld <vrozenfe@redhat.com>
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0a122b |
Date: Mon, 3 Mar 2014 12:09:13 +0100
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0a122b |
Subject: [PATCH 01/12] target-i386: Move hyperv_* static globals to X86CPU
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0a122b |
MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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0a122b |
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0a122b |
RH-Author: Vadim Rozenfeld <vrozenfe@redhat.com>
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Message-id: <1393848564-10511-2-git-send-email-vrozenfe@redhat.com>
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0a122b |
Patchwork-id: 57957
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O-Subject: [RHEL-7.0 qemu-kvm v4 PATCH 01/12] target-i386: Move hyperv_* static globals to X86CPU
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0a122b |
Bugzilla: 1004773
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0a122b |
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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0a122b |
RH-Acked-by: Igor Mammedov <imammedo@redhat.com>
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0a122b |
RH-Acked-by: Juan Quintela <quintela@redhat.com>
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0a122b |
RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
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0a122b |
From: Igor Mammedov <imammedo@redhat.com>
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0a122b |
since hyperv_* helper functions are used only in target-i386/kvm.c
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0a122b |
move them there as static helpers
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0a122b |
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0a122b |
Requested-by: Eduardo Habkost <ehabkost@redhat.com>
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0a122b |
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
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0a122b |
Signed-off-by: Andreas Fรคrber <afaerber@suse.de>
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0a122b |
(cherry picked from commit 92067bf4bfa144ea3967a9951808f5e587bdab18)
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0a122b |
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0a122b |
Conflicts:
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0a122b |
target-i386/cpu.h
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0a122b |
target-i386/kvm.c
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0a122b |
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0a122b |
target-i386/Makefile.objs | 2 +-
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0a122b |
target-i386/cpu-qom.h | 4 +++
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0a122b |
target-i386/cpu.c | 16 ++++++++
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0a122b |
target-i386/cpu.h | 4 +++
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0a122b |
target-i386/hyperv.c | 64
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0a122b |
target-i386/hyperv.h | 45
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0a122b |
target-i386/kvm.c | 36 ++++++++++++++++++
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0a122b |
7 files changed, 46 insertions(+), 125 deletions(-)
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0a122b |
delete mode 100644 target-i386/hyperv.c
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0a122b |
delete mode 100644 target-i386/hyperv.h
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0a122b |
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0a122b |
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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0a122b |
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0a122b |
target-i386/Makefile.objs | 2 +-
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0a122b |
target-i386/cpu-qom.h | 4 +++
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0a122b |
target-i386/cpu.c | 16 +++++++
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0a122b |
target-i386/cpu.h | 4 +++
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0a122b |
target-i386/hyperv.c | 64
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0a122b |
target-i386/hyperv.h | 45
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0a122b |
target-i386/kvm.c | 36 ++++++++++++++++++
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0a122b |
7 files changed, 46 insertions(+), 125 deletions(-)
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0a122b |
delete mode 100644 target-i386/hyperv.c
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0a122b |
delete mode 100644 target-i386/hyperv.h
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0a122b |
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0a122b |
diff
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0a122b |
index c1d4f05..887dca7 100644
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0a122b |
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0a122b |
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0a122b |
@@ -2,7 +2,7 @@ obj-y += translate.o helper.o cpu.o
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0a122b |
obj-y += excp_helper.o fpu_helper.o cc_helper.o int_helper.o svm_helper.o
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0a122b |
obj-y += smm_helper.o misc_helper.o mem_helper.o seg_helper.o
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0a122b |
obj-$(CONFIG_SOFTMMU) += machine.o arch_memory_mapping.o arch_dump.o
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0a122b |
-obj-$(CONFIG_KVM) += kvm.o hyperv.o
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0a122b |
+obj-$(CONFIG_KVM) += kvm.o
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0a122b |
obj-$(CONFIG_NO_KVM) += kvm-stub.o
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0a122b |
obj-$(CONFIG_LINUX_USER) += ioport-user.o
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0a122b |
obj-$(CONFIG_BSD_USER) += ioport-user.o
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0a122b |
diff
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0a122b |
index 12c7bea..ac56fec 100644
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0a122b |
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0a122b |
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0a122b |
@@ -66,6 +66,10 @@ typedef struct X86CPU {
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0a122b |
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0a122b |
CPUX86State env;
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0a122b |
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0a122b |
+ bool hyperv_vapic;
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0a122b |
+ bool hyperv_relaxed_timing;
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0a122b |
+ int hyperv_spinlock_attempts;
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0a122b |
+
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0a122b |
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0a122b |
uint32_t filtered_features[FEATURE_WORDS];
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0a122b |
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0a122b |
diff
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0a122b |
index 31ff568..826d8d6 100644
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0a122b |
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0a122b |
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0a122b |
@@ -35,8 +35,6 @@
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0a122b |
#include "qapi/visitor.h"
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0a122b |
#include "sysemu/arch_init.h"
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0a122b |
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0a122b |
-#include "hyperv.h"
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0a122b |
-
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0a122b |
#include "hw/hw.h"
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0a122b |
#if defined(CONFIG_KVM)
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0a122b |
#include <linux/kvm_para.h>
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0a122b |
@@ -1629,12 +1627,19 @@ static void cpu_x86_parse_featurestr(X86CPU *cpu, char *features, Error **errp)
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0a122b |
object_property_parse(OBJECT(cpu), num, "tsc-frequency", errp);
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0a122b |
} else if (!strcmp(featurestr, "hv-spinlocks")) {
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0a122b |
char *err;
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0a122b |
+ const int min = 0xFFF;
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0a122b |
numvalue = strtoul(val, &err, 0);
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0a122b |
if (!*val || *err) {
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0a122b |
error_setg(errp, "bad numerical value %s", val);
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0a122b |
goto out;
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0a122b |
}
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0a122b |
- hyperv_set_spinlock_retries(numvalue);
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0a122b |
+ if (numvalue < min) {
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0a122b |
+ fprintf(stderr, "hv-spinlocks value shall always be >= 0x%x"
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0a122b |
+ ", fixup will be removed in future versions\n",
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0a122b |
+ min);
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0a122b |
+ numvalue = min;
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0a122b |
+ }
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0a122b |
+ cpu->hyperv_spinlock_attempts = numvalue;
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0a122b |
} else {
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0a122b |
error_setg(errp, "unrecognized feature %s", featurestr);
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0a122b |
goto out;
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0a122b |
@@ -1644,9 +1649,9 @@ static void cpu_x86_parse_featurestr(X86CPU *cpu, char *features, Error **errp)
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0a122b |
} else if (!strcmp(featurestr, "enforce")) {
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0a122b |
check_cpuid = enforce_cpuid = 1;
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0a122b |
} else if (!strcmp(featurestr, "hv_relaxed")) {
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0a122b |
- hyperv_enable_relaxed_timing(true);
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0a122b |
+ cpu->hyperv_relaxed_timing = true;
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0a122b |
} else if (!strcmp(featurestr, "hv_vapic")) {
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0a122b |
- hyperv_enable_vapic_recommended(true);
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0a122b |
+ cpu->hyperv_vapic = true;
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0a122b |
} else {
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0a122b |
error_setg(errp, "feature string `%s' not in format (+feature|"
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0a122b |
"-feature|feature=xyz)", featurestr);
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0a122b |
@@ -2559,6 +2564,7 @@ static void x86_cpu_initfn(Object *obj)
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0a122b |
x86_cpu_get_feature_words,
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0a122b |
NULL, NULL, (void *)cpu->filtered_features, NULL);
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0a122b |
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0a122b |
+ cpu->hyperv_spinlock_attempts = HYPERV_SPINLOCK_NEVER_RETRY;
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env->cpuid_apic_id = x86_cpu_apic_id_from_index(cs->cpu_index);
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0a122b |
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/* init various static tables used in TCG mode */
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0a122b |
diff
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0a122b |
index 37ff264..4c4c9ff 100644
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0a122b |
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0a122b |
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0a122b |
@@ -565,6 +565,10 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
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0a122b |
#define CPUID_MWAIT_IBE (1 << 1) /* Interrupts can exit capability */
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0a122b |
#define CPUID_MWAIT_EMX (1 << 0)
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0a122b |
+#ifndef HYPERV_SPINLOCK_NEVER_RETRY
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+#define HYPERV_SPINLOCK_NEVER_RETRY 0xFFFFFFFF
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0a122b |
+#endif
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0a122b |
+
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0a122b |
#define EXCP00_DIVZ 0
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0a122b |
#define EXCP01_DB 1
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0a122b |
#define EXCP02_NMI 2
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0a122b |
diff
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0a122b |
deleted file mode 100644
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0a122b |
index f284e99..0000000
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0a122b |
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0a122b |
+++ /dev/null
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0a122b |
@@ -1,64 +0,0 @@
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-/*
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- * QEMU Hyper-V support
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- *
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- * Copyright Red Hat, Inc. 2011
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- *
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- * Author: Vadim Rozenfeld <vrozenfe@redhat.com>
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0a122b |
- *
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0a122b |
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
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- * See the COPYING file in the top-level directory.
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- *
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- */
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0a122b |
-
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0a122b |
-#include "hyperv.h"
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0a122b |
-
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-static bool hyperv_vapic;
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0a122b |
-static bool hyperv_relaxed_timing;
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0a122b |
-static int hyperv_spinlock_attempts = HYPERV_SPINLOCK_NEVER_RETRY;
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0a122b |
-
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0a122b |
-void hyperv_enable_vapic_recommended(bool val)
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0a122b |
-{
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0a122b |
- hyperv_vapic = val;
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0a122b |
-}
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0a122b |
-
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0a122b |
-void hyperv_enable_relaxed_timing(bool val)
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0a122b |
-{
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0a122b |
- hyperv_relaxed_timing = val;
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0a122b |
-}
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0a122b |
-
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0a122b |
-void hyperv_set_spinlock_retries(int val)
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0a122b |
-{
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0a122b |
- hyperv_spinlock_attempts = val;
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0a122b |
- if (hyperv_spinlock_attempts < 0xFFF) {
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0a122b |
- hyperv_spinlock_attempts = 0xFFF;
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0a122b |
- }
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0a122b |
-}
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0a122b |
-
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0a122b |
-bool hyperv_enabled(void)
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0a122b |
-{
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0a122b |
- return hyperv_hypercall_available() || hyperv_relaxed_timing_enabled();
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0a122b |
-}
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0a122b |
-
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0a122b |
-bool hyperv_hypercall_available(void)
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0a122b |
-{
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0a122b |
- if (hyperv_vapic ||
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|
0a122b |
- (hyperv_spinlock_attempts != HYPERV_SPINLOCK_NEVER_RETRY)) {
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|
0a122b |
- return true;
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|
0a122b |
- }
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0a122b |
- return false;
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0a122b |
-}
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0a122b |
-
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0a122b |
-bool hyperv_vapic_recommended(void)
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0a122b |
-{
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0a122b |
- return hyperv_vapic;
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0a122b |
-}
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0a122b |
-
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0a122b |
-bool hyperv_relaxed_timing_enabled(void)
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0a122b |
-{
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0a122b |
- return hyperv_relaxed_timing;
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0a122b |
-}
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0a122b |
-
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0a122b |
-int hyperv_get_spinlock_retries(void)
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0a122b |
-{
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0a122b |
- return hyperv_spinlock_attempts;
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0a122b |
-}
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0a122b |
diff
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0a122b |
deleted file mode 100644
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0a122b |
index bacb1d4..0000000
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0a122b |
+++ /dev/null
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0a122b |
@@ -1,45 +0,0 @@
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0a122b |
-/*
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0a122b |
- * QEMU Hyper-V support
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0a122b |
- *
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0a122b |
- * Copyright Red Hat, Inc. 2011
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0a122b |
- *
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0a122b |
- * Author: Vadim Rozenfeld <vrozenfe@redhat.com>
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0a122b |
- *
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0a122b |
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
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|
0a122b |
- * See the COPYING file in the top-level directory.
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0a122b |
- *
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|
0a122b |
- */
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|
0a122b |
-
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|
0a122b |
-#ifndef QEMU_HW_HYPERV_H
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|
0a122b |
-#define QEMU_HW_HYPERV_H 1
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|
0a122b |
-
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|
0a122b |
-#include "qemu-common.h"
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|
0a122b |
-#ifdef CONFIG_KVM
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|
0a122b |
-#include <asm/hyperv.h>
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0a122b |
-#endif
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|
0a122b |
-
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|
0a122b |
-#ifndef HYPERV_SPINLOCK_NEVER_RETRY
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|
|
0a122b |
-#define HYPERV_SPINLOCK_NEVER_RETRY 0xFFFFFFFF
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|
|
0a122b |
-#endif
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|
0a122b |
-
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|
0a122b |
-#ifndef KVM_CPUID_SIGNATURE_NEXT
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0a122b |
-#define KVM_CPUID_SIGNATURE_NEXT 0x40000100
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0a122b |
-#endif
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0a122b |
-
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|
0a122b |
-#if !defined(CONFIG_USER_ONLY) && defined(CONFIG_KVM)
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|
0a122b |
-void hyperv_enable_vapic_recommended(bool val);
|
|
|
0a122b |
-void hyperv_enable_relaxed_timing(bool val);
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|
0a122b |
-void hyperv_set_spinlock_retries(int val);
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|
0a122b |
-#else
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|
0a122b |
-static inline void hyperv_enable_vapic_recommended(bool val) { }
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|
0a122b |
-static inline void hyperv_enable_relaxed_timing(bool val) { }
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|
0a122b |
-static inline void hyperv_set_spinlock_retries(int val) { }
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0a122b |
-#endif
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|
0a122b |
-
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|
|
0a122b |
-bool hyperv_enabled(void);
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|
0a122b |
-bool hyperv_hypercall_available(void);
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|
|
0a122b |
-bool hyperv_vapic_recommended(void);
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|
0a122b |
-bool hyperv_relaxed_timing_enabled(void);
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0a122b |
-int hyperv_get_spinlock_retries(void);
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0a122b |
-
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0a122b |
-#endif
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0a122b |
diff
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0a122b |
index 4b470e4..c7fabd7 100644
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0a122b |
|
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0a122b |
|
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0a122b |
@@ -31,7 +31,7 @@
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|
0a122b |
#include "hw/i386/pc.h"
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|
0a122b |
#include "hw/i386/apic.h"
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|
0a122b |
#include "exec/ioport.h"
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|
0a122b |
-#include "hyperv.h"
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|
|
0a122b |
+#include <asm/hyperv.h>
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|
0a122b |
#include "hw/pci/pci.h"
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|
0a122b |
|
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0a122b |
//
|
|
|
0a122b |
@@ -421,6 +421,22 @@ unsigned long kvm_arch_vcpu_id(CPUState *cs)
|
|
|
0a122b |
return cpu->env.cpuid_apic_id;
|
|
|
0a122b |
}
|
|
|
0a122b |
|
|
|
0a122b |
+#ifndef KVM_CPUID_SIGNATURE_NEXT
|
|
|
0a122b |
+#define KVM_CPUID_SIGNATURE_NEXT 0x40000100
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|
0a122b |
+#endif
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0a122b |
+
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0a122b |
+static bool hyperv_hypercall_available(X86CPU *cpu)
|
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0a122b |
+{
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0a122b |
+ return cpu->hyperv_vapic ||
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0a122b |
+ (cpu->hyperv_spinlock_attempts != HYPERV_SPINLOCK_NEVER_RETRY);
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0a122b |
+}
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0a122b |
+
|
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0a122b |
+static bool hyperv_enabled(X86CPU *cpu)
|
|
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0a122b |
+{
|
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0a122b |
+ return hyperv_hypercall_available(cpu) ||
|
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0a122b |
+ cpu->hyperv_relaxed_timing;
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|
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0a122b |
+}
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0a122b |
+
|
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0a122b |
#define KVM_MAX_CPUID_ENTRIES 100
|
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0a122b |
|
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|
0a122b |
int kvm_arch_init_vcpu(CPUState *cs)
|
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0a122b |
@@ -443,7 +459,7 @@ int kvm_arch_init_vcpu(CPUState *cs)
|
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0a122b |
c = &cpuid_data.entries[cpuid_i++];
|
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0a122b |
memset(c, 0, sizeof(*c));
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0a122b |
c->function = KVM_CPUID_SIGNATURE;
|
|
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0a122b |
- if (!hyperv_enabled()) {
|
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|
0a122b |
+ if (!hyperv_enabled(cpu)) {
|
|
|
0a122b |
memcpy(signature, "KVMKVMKVM\0\0\0", 12);
|
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0a122b |
c->eax = 0;
|
|
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0a122b |
} else {
|
|
|
0a122b |
@@ -459,7 +475,7 @@ int kvm_arch_init_vcpu(CPUState *cs)
|
|
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0a122b |
c->function = KVM_CPUID_FEATURES;
|
|
|
0a122b |
c->eax = env->features[FEAT_KVM];
|
|
|
0a122b |
|
|
|
0a122b |
- if (hyperv_enabled()) {
|
|
|
0a122b |
+ if (hyperv_enabled(cpu)) {
|
|
|
0a122b |
memcpy(signature, "Hv#1\0\0\0\0\0\0\0\0", 12);
|
|
|
0a122b |
c->eax = signature[0];
|
|
|
0a122b |
|
|
|
0a122b |
@@ -472,10 +488,10 @@ int kvm_arch_init_vcpu(CPUState *cs)
|
|
|
0a122b |
c = &cpuid_data.entries[cpuid_i++];
|
|
|
0a122b |
memset(c, 0, sizeof(*c));
|
|
|
0a122b |
c->function = HYPERV_CPUID_FEATURES;
|
|
|
0a122b |
- if (hyperv_relaxed_timing_enabled()) {
|
|
|
0a122b |
+ if (cpu->hyperv_relaxed_timing) {
|
|
|
0a122b |
c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE;
|
|
|
0a122b |
}
|
|
|
0a122b |
- if (hyperv_vapic_recommended()) {
|
|
|
0a122b |
+ if (cpu->hyperv_vapic) {
|
|
|
0a122b |
c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE;
|
|
|
0a122b |
c->eax |= HV_X64_MSR_APIC_ACCESS_AVAILABLE;
|
|
|
0a122b |
}
|
|
|
0a122b |
@@ -483,13 +499,13 @@ int kvm_arch_init_vcpu(CPUState *cs)
|
|
|
0a122b |
c = &cpuid_data.entries[cpuid_i++];
|
|
|
0a122b |
memset(c, 0, sizeof(*c));
|
|
|
0a122b |
c->function = HYPERV_CPUID_ENLIGHTMENT_INFO;
|
|
|
0a122b |
- if (hyperv_relaxed_timing_enabled()) {
|
|
|
0a122b |
+ if (cpu->hyperv_relaxed_timing) {
|
|
|
0a122b |
c->eax |= HV_X64_RELAXED_TIMING_RECOMMENDED;
|
|
|
0a122b |
}
|
|
|
0a122b |
- if (hyperv_vapic_recommended()) {
|
|
|
0a122b |
+ if (cpu->hyperv_vapic) {
|
|
|
0a122b |
c->eax |= HV_X64_APIC_ACCESS_RECOMMENDED;
|
|
|
0a122b |
}
|
|
|
0a122b |
- c->ebx = hyperv_get_spinlock_retries();
|
|
|
0a122b |
+ c->ebx = cpu->hyperv_spinlock_attempts;
|
|
|
0a122b |
|
|
|
0a122b |
c = &cpuid_data.entries[cpuid_i++];
|
|
|
0a122b |
memset(c, 0, sizeof(*c));
|
|
|
0a122b |
@@ -1177,11 +1193,11 @@ static int kvm_put_msrs(X86CPU *cpu, int level)
|
|
|
0a122b |
kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_GLOBAL_CTRL,
|
|
|
0a122b |
env->msr_global_ctrl);
|
|
|
0a122b |
}
|
|
|
0a122b |
- if (hyperv_hypercall_available()) {
|
|
|
0a122b |
+ if (hyperv_hypercall_available(cpu)) {
|
|
|
0a122b |
kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_GUEST_OS_ID, 0);
|
|
|
0a122b |
kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_HYPERCALL, 0);
|
|
|
0a122b |
}
|
|
|
0a122b |
- if (hyperv_vapic_recommended()) {
|
|
|
0a122b |
+ if (cpu->hyperv_vapic) {
|
|
|
0a122b |
kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_APIC_ASSIST_PAGE, 0);
|
|
|
0a122b |
}
|
|
|
0a122b |
}
|
|
|
0a122b |
--
|
|
|
0a122b |
1.7.1
|
|
|
0a122b |
|