Hyper-V SynIC (synthetic interrupt controller) device implementation. The implementation contains: * msr's support * irq routing setup * irq injection * irq ack callback registration * event/message pages changes tracking at Hyper-V exit * Hyper-V test device to test SynIC by kvm-unit-tests Andrey Smetanin (7): standard-headers/x86: add Hyper-V SynIC constants target-i386/kvm: Hyper-V SynIC MSR's support linux-headers/kvm: add Hyper-V SynIC irq routing type and struct kvm: Hyper-V SynIC irq routing support linux-headers/kvm: KVM_EXIT_HYPERV type and struct target-i386/hyperv: Hyper-V SynIC SINT routing and vCPU exit hw/misc: Hyper-V test device 'hyperv-testdev' default-configs/i386-softmmu.mak | 1 + default-configs/x86_64-softmmu.mak | 1 + hw/misc/Makefile.objs | 1 + hw/misc/hyperv_testdev.c | 164 ++++++++++++++++++++++++++++++ include/standard-headers/asm-x86/hyperv.h | 12 +++ include/sysemu/kvm.h | 1 + kvm-all.c | 33 ++++++ linux-headers/linux/kvm.h | 25 +++++ target-i386/Makefile.objs | 2 +- target-i386/cpu-qom.h | 1 + target-i386/cpu.c | 1 + target-i386/cpu.h | 5 + target-i386/hyperv.c | 127 +++++++++++++++++++++++ target-i386/hyperv.h | 42 ++++++++ target-i386/kvm.c | 66 +++++++++++- target-i386/machine.c | 39 +++++++ 16 files changed, 519 insertions(+), 2 deletions(-) create mode 100644 hw/misc/hyperv_testdev.c create mode 100644 target-i386/hyperv.c create mode 100644 target-i386/hyperv.h Signed-off-by: Andrey Smetanin <asmetanin at virtuozzo.com> Reviewed-by: Roman Kagan <rkagan at virtuozzo.com> Signed-off-by: Denis V. Lunev <den at openvz.org> CC: Vitaly Kuznetsov <vkuznets at redhat.com> CC: "K. Y. Srinivasan" <kys at microsoft.com> CC: Gleb Natapov <gleb at kernel.org> CC: Paolo Bonzini <pbonzini at redhat.com> CC: Roman Kagan <rkagan at virtuozzo.com> CC: Denis V. Lunev <den at openvz.org> CC: kvm at vger.kernel.org CC: virtualization at lists.linux-foundation.org -- 2.4.3
Andrey Smetanin
2015-Oct-26 09:50 UTC
[PATCH 1/7] standard-headers/x86: add Hyper-V SynIC constants
Signed-off-by: Andrey Smetanin <asmetanin at virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan at virtuozzo.com>
Signed-off-by: Denis V. Lunev <den at openvz.org>
CC: Vitaly Kuznetsov <vkuznets at redhat.com>
CC: "K. Y. Srinivasan" <kys at microsoft.com>
CC: Gleb Natapov <gleb at kernel.org>
CC: Paolo Bonzini <pbonzini at redhat.com>
CC: Roman Kagan <rkagan at virtuozzo.com>
CC: Denis V. Lunev <den at openvz.org>
CC: kvm at vger.kernel.org
CC: virtualization at lists.linux-foundation.org
---
include/standard-headers/asm-x86/hyperv.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/include/standard-headers/asm-x86/hyperv.h
b/include/standard-headers/asm-x86/hyperv.h
index c37c14e..f9780f1 100644
--- a/include/standard-headers/asm-x86/hyperv.h
+++ b/include/standard-headers/asm-x86/hyperv.h
@@ -257,4 +257,16 @@ typedef struct _HV_REFERENCE_TSC_PAGE {
int64_t tsc_offset;
} HV_REFERENCE_TSC_PAGE, *PHV_REFERENCE_TSC_PAGE;
+/* Define the number of synthetic interrupt sources. */
+#define HV_SYNIC_SINT_COUNT (16)
+/* Define the expected SynIC version. */
+#define HV_SYNIC_VERSION_1 (0x1)
+
+#define HV_SYNIC_CONTROL_ENABLE (1ULL << 0)
+#define HV_SYNIC_SIMP_ENABLE (1ULL << 0)
+#define HV_SYNIC_SIEFP_ENABLE (1ULL << 0)
+#define HV_SYNIC_SINT_MASKED (1ULL << 16)
+#define HV_SYNIC_SINT_AUTO_EOI (1ULL << 17)
+#define HV_SYNIC_SINT_VECTOR_MASK (0xFF)
+
#endif
--
2.4.3
Andrey Smetanin
2015-Oct-26 09:50 UTC
[PATCH 2/7] target-i386/kvm: Hyper-V SynIC MSR's support
Hyper-V SynIC MSR's support and MSR's migration.
Signed-off-by: Andrey Smetanin <asmetanin at virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan at virtuozzo.com>
Signed-off-by: Denis V. Lunev <den at openvz.org>
CC: Vitaly Kuznetsov <vkuznets at redhat.com>
CC: "K. Y. Srinivasan" <kys at microsoft.com>
CC: Gleb Natapov <gleb at kernel.org>
CC: Paolo Bonzini <pbonzini at redhat.com>
CC: Roman Kagan <rkagan at virtuozzo.com>
CC: Denis V. Lunev <den at openvz.org>
CC: kvm at vger.kernel.org
CC: virtualization at lists.linux-foundation.org
---
target-i386/cpu-qom.h | 1 +
target-i386/cpu.c | 1 +
target-i386/cpu.h | 5 +++++
target-i386/kvm.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++-
target-i386/machine.c | 39 ++++++++++++++++++++++++++++++++
5 files changed, 107 insertions(+), 1 deletion(-)
diff --git a/target-i386/cpu-qom.h b/target-i386/cpu-qom.h
index e3bfe9d..7ea5b34 100644
--- a/target-i386/cpu-qom.h
+++ b/target-i386/cpu-qom.h
@@ -94,6 +94,7 @@ typedef struct X86CPU {
bool hyperv_reset;
bool hyperv_vpindex;
bool hyperv_runtime;
+ bool hyperv_synic;
bool check_cpuid;
bool enforce_cpuid;
bool expose_kvm;
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index c1a9e09..ff1c0a9 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -3141,6 +3141,7 @@ static Property x86_cpu_properties[] = {
DEFINE_PROP_BOOL("hv-reset", X86CPU, hyperv_reset, false),
DEFINE_PROP_BOOL("hv-vpindex", X86CPU, hyperv_vpindex, false),
DEFINE_PROP_BOOL("hv-runtime", X86CPU, hyperv_runtime, false),
+ DEFINE_PROP_BOOL("hv-synic", X86CPU, hyperv_synic, 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/cpu.h b/target-i386/cpu.h
index 62f7879..8611015 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -915,6 +915,11 @@ typedef struct CPUX86State {
uint64_t msr_hv_tsc;
uint64_t msr_hv_crash_params[HV_X64_MSR_CRASH_PARAMS];
uint64_t msr_hv_runtime;
+ uint64_t msr_hv_synic_control;
+ uint64_t msr_hv_synic_version;
+ uint64_t msr_hv_synic_evt_page;
+ uint64_t msr_hv_synic_msg_page;
+ uint64_t msr_hv_synic_sint[HV_SYNIC_SINT_COUNT];
/* exception/interrupt handling */
int error_code;
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 64046cb..325dfec 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -86,6 +86,7 @@ static bool has_msr_hv_crash;
static bool has_msr_hv_reset;
static bool has_msr_hv_vpindex;
static bool has_msr_hv_runtime;
+static bool has_msr_hv_synic;
static bool has_msr_mtrr;
static bool has_msr_xss;
@@ -476,7 +477,8 @@ static bool hyperv_enabled(X86CPU *cpu)
cpu->hyperv_crash ||
cpu->hyperv_reset ||
cpu->hyperv_vpindex ||
- cpu->hyperv_runtime);
+ cpu->hyperv_runtime ||
+ cpu->hyperv_synic);
}
static Error *invtsc_mig_blocker;
@@ -565,6 +567,9 @@ int kvm_arch_init_vcpu(CPUState *cs)
if (cpu->hyperv_runtime && has_msr_hv_runtime) {
c->eax |= HV_X64_MSR_VP_RUNTIME_AVAILABLE;
}
+ if (cpu->hyperv_synic && has_msr_hv_synic) {
+ c->eax |= HV_X64_MSR_SYNIC_AVAILABLE;
+ }
c = &cpuid_data.entries[cpuid_i++];
c->function = HYPERV_CPUID_ENLIGHTMENT_INFO;
if (cpu->hyperv_relaxed_timing) {
@@ -905,6 +910,10 @@ static int kvm_get_supported_msrs(KVMState *s)
has_msr_hv_runtime = true;
continue;
}
+ if (kvm_msr_list->indices[i] == HV_X64_MSR_SCONTROL) {
+ has_msr_hv_synic = true;
+ continue;
+ }
}
}
@@ -1466,6 +1475,31 @@ static int kvm_put_msrs(X86CPU *cpu, int level)
kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_VP_RUNTIME,
env->msr_hv_runtime);
}
+ if (has_msr_hv_synic) {
+ int j;
+
+ if (!env->msr_hv_synic_version) {
+ /* First time initialization */
+ env->msr_hv_synic_version = HV_SYNIC_VERSION_1;
+ for (j = 0; j < ARRAY_SIZE(env->msr_hv_synic_sint); j++)
{
+ env->msr_hv_synic_sint[j] = HV_SYNIC_SINT_MASKED;
+ }
+ }
+
+ kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_SCONTROL,
+ env->msr_hv_synic_control);
+ kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_SVERSION,
+ env->msr_hv_synic_version);
+ kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_SIEFP,
+ env->msr_hv_synic_evt_page);
+ kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_SIMP,
+ env->msr_hv_synic_msg_page);
+
+ for (j = 0; j < ARRAY_SIZE(env->msr_hv_synic_sint); j++) {
+ kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_SINT0 + j,
+ env->msr_hv_synic_sint[j]);
+ }
+ }
if (has_msr_mtrr) {
kvm_msr_entry_set(&msrs[n++], MSR_MTRRdefType,
env->mtrr_deftype);
kvm_msr_entry_set(&msrs[n++],
@@ -1834,6 +1868,17 @@ static int kvm_get_msrs(X86CPU *cpu)
if (has_msr_hv_runtime) {
msrs[n++].index = HV_X64_MSR_VP_RUNTIME;
}
+ if (has_msr_hv_synic) {
+ uint32_t msr;
+
+ msrs[n++].index = HV_X64_MSR_SCONTROL;
+ msrs[n++].index = HV_X64_MSR_SVERSION;
+ msrs[n++].index = HV_X64_MSR_SIEFP;
+ msrs[n++].index = HV_X64_MSR_SIMP;
+ for (msr = HV_X64_MSR_SINT0; msr <= HV_X64_MSR_SINT15; msr++) {
+ msrs[n++].index = msr;
+ }
+ }
if (has_msr_mtrr) {
msrs[n++].index = MSR_MTRRdefType;
msrs[n++].index = MSR_MTRRfix64K_00000;
@@ -1990,6 +2035,21 @@ static int kvm_get_msrs(X86CPU *cpu)
case HV_X64_MSR_VP_RUNTIME:
env->msr_hv_runtime = msrs[i].data;
break;
+ case HV_X64_MSR_SCONTROL:
+ env->msr_hv_synic_control = msrs[i].data;
+ break;
+ case HV_X64_MSR_SVERSION:
+ env->msr_hv_synic_version = msrs[i].data;
+ break;
+ case HV_X64_MSR_SIEFP:
+ env->msr_hv_synic_evt_page = msrs[i].data;
+ break;
+ case HV_X64_MSR_SIMP:
+ env->msr_hv_synic_msg_page = msrs[i].data;
+ break;
+ case HV_X64_MSR_SINT0 ... HV_X64_MSR_SINT15:
+ env->msr_hv_synic_sint[index - HV_X64_MSR_SINT0] = msrs[i].data;
+ break;
case MSR_MTRRdefType:
env->mtrr_deftype = msrs[i].data;
break;
diff --git a/target-i386/machine.c b/target-i386/machine.c
index a18e16e..bdb2997 100644
--- a/target-i386/machine.c
+++ b/target-i386/machine.c
@@ -710,6 +710,44 @@ static const VMStateDescription vmstate_msr_hyperv_runtime
= {
}
};
+static bool hyperv_synic_enable_needed(void *opaque)
+{
+ X86CPU *cpu = opaque;
+ CPUX86State *env = &cpu->env;
+ int i;
+
+ if (env->msr_hv_synic_control != 0 ||
+ env->msr_hv_synic_version != 0 ||
+ env->msr_hv_synic_evt_page != 0 ||
+ env->msr_hv_synic_msg_page != 0) {
+ return true;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(env->msr_hv_synic_sint); i++) {
+ if (env->msr_hv_synic_sint[i] != 0) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static const VMStateDescription vmstate_msr_hyperv_synic = {
+ .name = "cpu/msr_hyperv_synic",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = hyperv_synic_enable_needed,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT64(env.msr_hv_synic_control, X86CPU),
+ VMSTATE_UINT64(env.msr_hv_synic_version, X86CPU),
+ VMSTATE_UINT64(env.msr_hv_synic_evt_page, X86CPU),
+ VMSTATE_UINT64(env.msr_hv_synic_msg_page, X86CPU),
+ VMSTATE_UINT64_ARRAY(env.msr_hv_synic_sint, X86CPU,
+ HV_SYNIC_SINT_COUNT),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static bool avx512_needed(void *opaque)
{
X86CPU *cpu = opaque;
@@ -893,6 +931,7 @@ VMStateDescription vmstate_x86_cpu = {
&vmstate_msr_hyperv_time,
&vmstate_msr_hyperv_crash,
&vmstate_msr_hyperv_runtime,
+ &vmstate_msr_hyperv_synic,
&vmstate_avx512,
&vmstate_xss,
NULL
--
2.4.3
Andrey Smetanin
2015-Oct-26 09:50 UTC
[PATCH 3/7] linux-headers/kvm: add Hyper-V SynIC irq routing type and struct
Signed-off-by: Andrey Smetanin <asmetanin at virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan at virtuozzo.com>
Signed-off-by: Denis V. Lunev <den at openvz.org>
CC: Vitaly Kuznetsov <vkuznets at redhat.com>
CC: "K. Y. Srinivasan" <kys at microsoft.com>
CC: Gleb Natapov <gleb at kernel.org>
CC: Paolo Bonzini <pbonzini at redhat.com>
CC: Roman Kagan <rkagan at virtuozzo.com>
CC: Denis V. Lunev <den at openvz.org>
CC: kvm at vger.kernel.org
CC: virtualization at lists.linux-foundation.org
---
linux-headers/linux/kvm.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
index dcc410e..0bff588 100644
--- a/linux-headers/linux/kvm.h
+++ b/linux-headers/linux/kvm.h
@@ -831,6 +831,7 @@ struct kvm_ppc_smmu_info {
#define KVM_CAP_GUEST_DEBUG_HW_WPS 120
#define KVM_CAP_SPLIT_IRQCHIP 121
#define KVM_CAP_IOEVENTFD_ANY_LENGTH 122
+#define KVM_CAP_HYPERV_SYNIC 123
#ifdef KVM_CAP_IRQ_ROUTING
@@ -854,10 +855,16 @@ struct kvm_irq_routing_s390_adapter {
__u32 adapter_id;
};
+struct kvm_irq_routing_hv_sint {
+ __u32 vcpu;
+ __u32 sint;
+};
+
/* gsi routing entry types */
#define KVM_IRQ_ROUTING_IRQCHIP 1
#define KVM_IRQ_ROUTING_MSI 2
#define KVM_IRQ_ROUTING_S390_ADAPTER 3
+#define KVM_IRQ_ROUTING_HV_SINT 4
struct kvm_irq_routing_entry {
__u32 gsi;
@@ -868,6 +875,7 @@ struct kvm_irq_routing_entry {
struct kvm_irq_routing_irqchip irqchip;
struct kvm_irq_routing_msi msi;
struct kvm_irq_routing_s390_adapter adapter;
+ struct kvm_irq_routing_hv_sint hv_sint;
__u32 pad[8];
} u;
};
--
2.4.3
Signed-off-by: Andrey Smetanin <asmetanin at virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan at virtuozzo.com>
Signed-off-by: Denis V. Lunev <den at openvz.org>
CC: Vitaly Kuznetsov <vkuznets at redhat.com>
CC: "K. Y. Srinivasan" <kys at microsoft.com>
CC: Gleb Natapov <gleb at kernel.org>
CC: Paolo Bonzini <pbonzini at redhat.com>
CC: Roman Kagan <rkagan at virtuozzo.com>
CC: Denis V. Lunev <den at openvz.org>
CC: kvm at vger.kernel.org
CC: virtualization at lists.linux-foundation.org
---
include/sysemu/kvm.h | 1 +
kvm-all.c | 33 +++++++++++++++++++++++++++++++++
2 files changed, 34 insertions(+)
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index 461ef65..5af10fb 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -455,6 +455,7 @@ int kvm_irqchip_update_msi_route(KVMState *s, int virq,
MSIMessage msg,
void kvm_irqchip_release_virq(KVMState *s, int virq);
int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter);
+int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint);
int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
EventNotifier *rn, int virq);
diff --git a/kvm-all.c b/kvm-all.c
index c442838..4d36a6c 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1297,6 +1297,34 @@ int kvm_irqchip_add_adapter_route(KVMState *s,
AdapterInfo *adapter)
return virq;
}
+int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint)
+{
+ struct kvm_irq_routing_entry kroute = {};
+ int virq;
+
+ if (!kvm_gsi_routing_enabled()) {
+ return -ENOSYS;
+ }
+ if (!kvm_check_extension(s, KVM_CAP_HYPERV_SYNIC)) {
+ return -ENOSYS;
+ }
+ virq = kvm_irqchip_get_virq(s);
+ if (virq < 0) {
+ return virq;
+ }
+
+ kroute.gsi = virq;
+ kroute.type = KVM_IRQ_ROUTING_HV_SINT;
+ kroute.flags = 0;
+ kroute.u.hv_sint.vcpu = vcpu;
+ kroute.u.hv_sint.sint = sint;
+
+ kvm_add_routing_entry(s, &kroute);
+ kvm_irqchip_commit_routes(s);
+
+ return virq;
+}
+
#else /* !KVM_CAP_IRQ_ROUTING */
void kvm_init_irq_routing(KVMState *s)
@@ -1322,6 +1350,11 @@ int kvm_irqchip_add_adapter_route(KVMState *s,
AdapterInfo *adapter)
return -ENOSYS;
}
+int kvm_irqchip_add_hv_sint_route(KVMState *s, uint32_t vcpu, uint32_t sint)
+{
+ return -ENOSYS;
+}
+
static int kvm_irqchip_assign_irqfd(KVMState *s, int fd, int virq, bool assign)
{
abort();
--
2.4.3
Andrey Smetanin
2015-Oct-26 09:50 UTC
[PATCH 5/7] linux-headers/kvm: KVM_EXIT_HYPERV type and struct
Signed-off-by: Andrey Smetanin <asmetanin at virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan at virtuozzo.com>
Signed-off-by: Denis V. Lunev <den at openvz.org>
CC: Vitaly Kuznetsov <vkuznets at redhat.com>
CC: "K. Y. Srinivasan" <kys at microsoft.com>
CC: Gleb Natapov <gleb at kernel.org>
CC: Paolo Bonzini <pbonzini at redhat.com>
CC: Roman Kagan <rkagan at virtuozzo.com>
CC: Denis V. Lunev <den at openvz.org>
CC: kvm at vger.kernel.org
CC: virtualization at lists.linux-foundation.org
---
linux-headers/linux/kvm.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
index 0bff588..4e20262 100644
--- a/linux-headers/linux/kvm.h
+++ b/linux-headers/linux/kvm.h
@@ -154,6 +154,20 @@ struct kvm_s390_skeys {
__u32 flags;
__u32 reserved[9];
};
+
+struct kvm_hyperv_exit {
+#define KVM_EXIT_HYPERV_SYNIC 1
+ __u32 type;
+ union {
+ struct {
+ __u32 msr;
+ __u64 control;
+ __u64 evt_page;
+ __u64 msg_page;
+ } synic;
+ } u;
+};
+
#define KVM_S390_GET_SKEYS_NONE 1
#define KVM_S390_SKEYS_MAX 1048576
@@ -184,6 +198,7 @@ struct kvm_s390_skeys {
#define KVM_EXIT_SYSTEM_EVENT 24
#define KVM_EXIT_S390_STSI 25
#define KVM_EXIT_IOAPIC_EOI 26
+#define KVM_EXIT_HYPERV 27
/* For KVM_EXIT_INTERNAL_ERROR */
/* Emulate instruction failed. */
@@ -338,6 +353,8 @@ struct kvm_run {
struct {
__u8 vector;
} eoi;
+ /* KVM_EXIT_HYPERV */
+ struct kvm_hyperv_exit hyperv;
/* Fix the size of the union. */
char padding[256];
};
--
2.4.3
Andrey Smetanin
2015-Oct-26 09:50 UTC
[PATCH 6/7] target-i386/hyperv: Hyper-V SynIC SINT routing and vCPU exit
Hyper-V SynIC(synthetic interrupt controller) API for
irq routing setup, irq injection, irq ack notifications and
event/message pages changes tracking for future use.
Signed-off-by: Andrey Smetanin <asmetanin at virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan at virtuozzo.com>
Signed-off-by: Denis V. Lunev <den at openvz.org>
CC: Vitaly Kuznetsov <vkuznets at redhat.com>
CC: "K. Y. Srinivasan" <kys at microsoft.com>
CC: Gleb Natapov <gleb at kernel.org>
CC: Paolo Bonzini <pbonzini at redhat.com>
CC: Roman Kagan <rkagan at virtuozzo.com>
CC: Denis V. Lunev <den at openvz.org>
CC: kvm at vger.kernel.org
CC: virtualization at lists.linux-foundation.org
---
target-i386/Makefile.objs | 2 +-
target-i386/hyperv.c | 127 ++++++++++++++++++++++++++++++++++++++++++++++
target-i386/hyperv.h | 42 +++++++++++++++
target-i386/kvm.c | 4 ++
4 files changed, 174 insertions(+), 1 deletion(-)
create mode 100644 target-i386/hyperv.c
create mode 100644 target-i386/hyperv.h
diff --git a/target-i386/Makefile.objs b/target-i386/Makefile.objs
index 437d997..2255f46 100644
--- a/target-i386/Makefile.objs
+++ b/target-i386/Makefile.objs
@@ -3,5 +3,5 @@ obj-y += excp_helper.o fpu_helper.o cc_helper.o int_helper.o
svm_helper.o
obj-y += smm_helper.o misc_helper.o mem_helper.o seg_helper.o
obj-y += gdbstub.o
obj-$(CONFIG_SOFTMMU) += machine.o arch_memory_mapping.o arch_dump.o monitor.o
-obj-$(CONFIG_KVM) += kvm.o
+obj-$(CONFIG_KVM) += kvm.o hyperv.o
obj-$(call lnot,$(CONFIG_KVM)) += kvm-stub.o
diff --git a/target-i386/hyperv.c b/target-i386/hyperv.c
new file mode 100644
index 0000000..e79b173
--- /dev/null
+++ b/target-i386/hyperv.c
@@ -0,0 +1,127 @@
+/*
+ * QEMU KVM Hyper-V support
+ *
+ * Copyright (C) 2015 Andrey Smetanin <asmetanin at virtuozzo.com>
+ *
+ * Authors:
+ * Andrey Smetanin <asmetanin at virtuozzo.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "hyperv.h"
+#include "standard-headers/asm-x86/hyperv.h"
+
+int kvm_hv_handle_exit(X86CPU *cpu, struct kvm_hyperv_exit *exit)
+{
+ CPUX86State *env = &cpu->env;
+
+ switch (exit->type) {
+ case KVM_EXIT_HYPERV_SYNIC:
+ if (!cpu->hyperv_synic) {
+ return -1;
+ }
+
+ /*
+ * For now just track changes in SynIC control and msg/evt pages
msr's.
+ * When SynIC messaging/events processing will be added in future
+ * here we will do messages queues flushing and pages remapping.
+ */
+ switch (exit->u.synic.msr) {
+ case HV_X64_MSR_SCONTROL:
+ env->msr_hv_synic_control = exit->u.synic.control;
+ break;
+ case HV_X64_MSR_SIMP:
+ env->msr_hv_synic_msg_page = exit->u.synic.msg_page;
+ break;
+ case HV_X64_MSR_SIEFP:
+ env->msr_hv_synic_evt_page = exit->u.synic.evt_page;
+ break;
+ default:
+ return -1;
+ }
+ return 0;
+ default:
+ return -1;
+ }
+}
+
+static void kvm_hv_sint_ack_handler(EventNotifier *notifier)
+{
+ HvSintRoute *sint_route = container_of(notifier, HvSintRoute,
+ sint_ack_notifier);
+ event_notifier_test_and_clear(notifier);
+ if (sint_route->sint_ack_clb) {
+ sint_route->sint_ack_clb(sint_route);
+ }
+}
+
+HvSintRoute *kvm_hv_sint_route_create(uint32_t vcpu_id, uint32_t sint,
+ HvSintAckClb sint_ack_clb)
+{
+ HvSintRoute *sint_route;
+ int r, gsi;
+
+ sint_route = g_malloc0(sizeof(*sint_route));
+ r = event_notifier_init(&sint_route->sint_set_notifier, false);
+ if (r) {
+ goto err;
+ }
+
+ r = event_notifier_init(&sint_route->sint_ack_notifier, false);
+ if (r) {
+ goto err_sint_set_notifier;
+ }
+
+ event_notifier_set_handler(&sint_route->sint_ack_notifier,
+ kvm_hv_sint_ack_handler);
+
+ gsi = kvm_irqchip_add_hv_sint_route(kvm_state, vcpu_id, sint);
+ if (gsi < 0) {
+ goto err_gsi;
+ }
+
+ r = kvm_irqchip_add_irqfd_notifier_gsi(kvm_state,
+
&sint_route->sint_set_notifier,
+
&sint_route->sint_ack_notifier, gsi);
+ if (r) {
+ goto err_irqfd;
+ }
+ sint_route->gsi = gsi;
+ sint_route->sint_ack_clb = sint_ack_clb;
+ sint_route->vcpu_id = vcpu_id;
+ sint_route->sint = sint;
+
+ return sint_route;
+
+err_irqfd:
+ kvm_irqchip_release_virq(kvm_state, gsi);
+err_gsi:
+ event_notifier_set_handler(&sint_route->sint_ack_notifier, NULL);
+ event_notifier_cleanup(&sint_route->sint_ack_notifier);
+err_sint_set_notifier:
+ event_notifier_cleanup(&sint_route->sint_set_notifier);
+err:
+ g_free(sint_route);
+
+ return NULL;
+}
+
+void kvm_hv_sint_route_destroy(HvSintRoute *sint_route)
+{
+ kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state,
+
&sint_route->sint_set_notifier,
+ sint_route->gsi);
+ kvm_irqchip_release_virq(kvm_state, sint_route->gsi);
+ event_notifier_set_handler(&sint_route->sint_ack_notifier, NULL);
+ event_notifier_cleanup(&sint_route->sint_ack_notifier);
+ event_notifier_cleanup(&sint_route->sint_set_notifier);
+ g_free(sint_route);
+}
+
+int kvm_hv_sint_route_set_sint(HvSintRoute *sint_route)
+{
+ return event_notifier_set(&sint_route->sint_set_notifier);
+}
diff --git a/target-i386/hyperv.h b/target-i386/hyperv.h
new file mode 100644
index 0000000..b26201f
--- /dev/null
+++ b/target-i386/hyperv.h
@@ -0,0 +1,42 @@
+/*
+ * QEMU KVM Hyper-V support
+ *
+ * Copyright (C) 2015 Andrey Smetanin <asmetanin at virtuozzo.com>
+ *
+ * Authors:
+ * Andrey Smetanin <asmetanin at virtuozzo.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef HYPERV_I386_H
+#define HYPERV_I386_H
+
+#include "cpu.h"
+#include "sysemu/kvm.h"
+#include "qemu/event_notifier.h"
+
+typedef struct HvSintRoute HvSintRoute;
+typedef void (*HvSintAckClb)(HvSintRoute *sint_route);
+
+struct HvSintRoute {
+ uint32_t sint;
+ uint32_t vcpu_id;
+ int gsi;
+ EventNotifier sint_set_notifier;
+ EventNotifier sint_ack_notifier;
+ HvSintAckClb sint_ack_clb;
+};
+
+int kvm_hv_handle_exit(X86CPU *cpu, struct kvm_hyperv_exit *exit);
+
+HvSintRoute *kvm_hv_sint_route_create(uint32_t vcpu_id, uint32_t sint,
+ HvSintAckClb sint_ack_clb);
+
+void kvm_hv_sint_route_destroy(HvSintRoute *sint_route);
+
+int kvm_hv_sint_route_set_sint(HvSintRoute *sint_route);
+
+#endif
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 325dfec..c760fd2 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -25,6 +25,7 @@
#include "sysemu/kvm_int.h"
#include "kvm_i386.h"
#include "cpu.h"
+#include "hyperv.h"
#include "exec/gdbstub.h"
#include "qemu/host-utils.h"
#include "qemu/config-file.h"
@@ -2908,6 +2909,9 @@ int kvm_arch_handle_exit(CPUState *cs, struct kvm_run
*run)
ret = kvm_handle_debug(cpu, &run->debug.arch);
qemu_mutex_unlock_iothread();
break;
+ case KVM_EXIT_HYPERV:
+ ret = kvm_hv_handle_exit(cpu, &run->hyperv);
+ break;
default:
fprintf(stderr, "KVM: unknown exit reason %d\n",
run->exit_reason);
ret = -1;
--
2.4.3
Andrey Smetanin
2015-Oct-26 09:51 UTC
[PATCH 7/7] hw/misc: Hyper-V test device 'hyperv-testdev'
'hyperv-testdev' will be used by kvm-unit-tests
to setup Hyper-V SynIC SINT's routing and to inject
Hyper-V SynIC SINT's.
Hyper-V test device is ISA type device that create 0x3000
IO memory region and catches write access into it. Every
write operation data decoded into ctl code and parameters
for Hyper-V test device.
Signed-off-by: Andrey Smetanin <asmetanin at virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan at virtuozzo.com>
Signed-off-by: Denis V. Lunev <den at openvz.org>
CC: Vitaly Kuznetsov <vkuznets at redhat.com>
CC: "K. Y. Srinivasan" <kys at microsoft.com>
CC: Gleb Natapov <gleb at kernel.org>
CC: Paolo Bonzini <pbonzini at redhat.com>
CC: Roman Kagan <rkagan at virtuozzo.com>
CC: Denis V. Lunev <den at openvz.org>
CC: kvm at vger.kernel.org
CC: virtualization at lists.linux-foundation.org
---
default-configs/i386-softmmu.mak | 1 +
default-configs/x86_64-softmmu.mak | 1 +
hw/misc/Makefile.objs | 1 +
hw/misc/hyperv_testdev.c | 164 +++++++++++++++++++++++++++++++++++++
4 files changed, 167 insertions(+)
create mode 100644 hw/misc/hyperv_testdev.c
diff --git a/default-configs/i386-softmmu.mak b/default-configs/i386-softmmu.mak
index 43c96d1..7f3c850 100644
--- a/default-configs/i386-softmmu.mak
+++ b/default-configs/i386-softmmu.mak
@@ -50,3 +50,4 @@ CONFIG_XIO3130=y
CONFIG_IOH3420=y
CONFIG_I82801B11=y
CONFIG_SMBIOS=y
+CONFIG_HYPERV_TESTDEV=y
diff --git a/default-configs/x86_64-softmmu.mak
b/default-configs/x86_64-softmmu.mak
index dfb8095..e494d79 100644
--- a/default-configs/x86_64-softmmu.mak
+++ b/default-configs/x86_64-softmmu.mak
@@ -50,3 +50,4 @@ CONFIG_XIO3130=y
CONFIG_IOH3420=y
CONFIG_I82801B11=y
CONFIG_SMBIOS=y
+CONFIG_HYPERV_TESTDEV=y
diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs
index 4aa76ff..fafc80a 100644
--- a/hw/misc/Makefile.objs
+++ b/hw/misc/Makefile.objs
@@ -40,3 +40,4 @@ obj-$(CONFIG_STM32F2XX_SYSCFG) += stm32f2xx_syscfg.o
obj-$(CONFIG_PVPANIC) += pvpanic.o
obj-$(CONFIG_EDU) += edu.o
+obj-$(CONFIG_HYPERV_TESTDEV) += hyperv_testdev.o
diff --git a/hw/misc/hyperv_testdev.c b/hw/misc/hyperv_testdev.c
new file mode 100644
index 0000000..f0e4e35
--- /dev/null
+++ b/hw/misc/hyperv_testdev.c
@@ -0,0 +1,164 @@
+/*
+ * QEMU KVM Hyper-V test device to support Hyper-V kvm-unit-tests
+ *
+ * Copyright (C) 2015 Andrey Smetanin <asmetanin at virtuozzo.com>
+ *
+ * Authors:
+ * Andrey Smetanin <asmetanin at virtuozzo.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "hw/hw.h"
+#include "hw/qdev.h"
+#include "hw/isa/isa.h"
+#include "target-i386/hyperv.h"
+
+#define HV_TEST_DEV_MAX_SINT_ROUTES 64
+
+struct HypervTestDev {
+ ISADevice parent_obj;
+ MemoryRegion sint_control;
+ HvSintRoute *sint_route[HV_TEST_DEV_MAX_SINT_ROUTES];
+};
+typedef struct HypervTestDev HypervTestDev;
+
+#define TYPE_HYPERV_TEST_DEV "hyperv-testdev"
+#define HYPERV_TEST_DEV(obj) \
+ OBJECT_CHECK(HypervTestDev, (obj), TYPE_HYPERV_TEST_DEV)
+
+enum {
+ HV_TEST_DEV_SINT_ROUTE_CREATE = 1,
+ HV_TEST_DEV_SINT_ROUTE_DESTROY,
+ HV_TEST_DEV_SINT_ROUTE_SET_SINT
+};
+
+static int alloc_sint_route_index(HypervTestDev *dev)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(dev->sint_route); i++) {
+ if (dev->sint_route[i] == NULL) {
+ return i;
+ }
+ }
+ return -1;
+}
+
+static void free_sint_route_index(HypervTestDev *dev, int i)
+{
+ assert(i >= 0 && i < ARRAY_SIZE(dev->sint_route));
+ dev->sint_route[i] = NULL;
+}
+
+static int find_sint_route_index(HypervTestDev *dev, uint32_t vcpu_id,
+ uint32_t sint)
+{
+ HvSintRoute *sint_route;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(dev->sint_route); i++) {
+ sint_route = dev->sint_route[i];
+ if (sint_route && sint_route->vcpu_id == vcpu_id &&
+ sint_route->sint == sint) {
+ return i;
+ }
+ }
+ return -1;
+}
+
+static void hv_synic_test_dev_control(HypervTestDev *dev, uint32_t ctl,
+ uint32_t vcpu_id, uint32_t sint)
+{
+ int i;
+ HvSintRoute *sint_route;
+
+ switch (ctl) {
+ case HV_TEST_DEV_SINT_ROUTE_CREATE:
+ i = alloc_sint_route_index(dev);
+ assert(i >= 0);
+ sint_route = kvm_hv_sint_route_create(vcpu_id, sint, NULL);
+ assert(sint_route);
+ dev->sint_route[i] = sint_route;
+ break;
+ case HV_TEST_DEV_SINT_ROUTE_DESTROY:
+ i = find_sint_route_index(dev, vcpu_id, sint);
+ assert(i >= 0);
+ sint_route = dev->sint_route[i];
+ kvm_hv_sint_route_destroy(sint_route);
+ free_sint_route_index(dev, i);
+ break;
+ case HV_TEST_DEV_SINT_ROUTE_SET_SINT:
+ i = find_sint_route_index(dev, vcpu_id, sint);
+ assert(i >= 0);
+ sint_route = dev->sint_route[i];
+ kvm_hv_sint_route_set_sint(sint_route);
+ break;
+ default:
+ break;
+ }
+}
+
+static void hv_test_dev_control(void *opaque, hwaddr addr, uint64_t data,
+ uint32_t len)
+{
+ HypervTestDev *dev = HYPERV_TEST_DEV(opaque);
+ uint8_t ctl;
+
+ ctl = (data >> 16ULL) & 0xFF;
+ switch (ctl) {
+ case HV_TEST_DEV_SINT_ROUTE_CREATE:
+ case HV_TEST_DEV_SINT_ROUTE_DESTROY:
+ case HV_TEST_DEV_SINT_ROUTE_SET_SINT: {
+ uint8_t sint = data & 0xFF;
+ uint8_t vcpu_id = (data >> 8ULL) & 0xFF;
+ hv_synic_test_dev_control(dev, ctl, vcpu_id, sint);
+ break;
+ }
+ default:
+ break;
+ }
+}
+
+static const MemoryRegionOps synic_test_sint_ops = {
+ .write = hv_test_dev_control,
+ .valid.min_access_size = 4,
+ .valid.max_access_size = 4,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static void hv_test_dev_realizefn(DeviceState *d, Error **errp)
+{
+ ISADevice *isa = ISA_DEVICE(d);
+ HypervTestDev *dev = HYPERV_TEST_DEV(d);
+ MemoryRegion *io = isa_address_space_io(isa);
+
+ memset(dev->sint_route, 0, sizeof(dev->sint_route));
+ memory_region_init_io(&dev->sint_control, OBJECT(dev),
+ &synic_test_sint_ops, dev,
+ "hyperv-testdev-ctl", 4);
+ memory_region_add_subregion(io, 0x3000, &dev->sint_control);
+}
+
+static void hv_test_dev_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ set_bit(DEVICE_CATEGORY_MISC, dc->categories);
+ dc->realize = hv_test_dev_realizefn;
+}
+
+static const TypeInfo hv_test_dev_info = {
+ .name = TYPE_HYPERV_TEST_DEV,
+ .parent = TYPE_ISA_DEVICE,
+ .instance_size = sizeof(HypervTestDev),
+ .class_init = hv_test_dev_class_init,
+};
+
+static void hv_test_dev_register_types(void)
+{
+ type_register_static(&hv_test_dev_info);
+}
+type_init(hv_test_dev_register_types);
--
2.4.3
Peter Maydell
2015-Oct-26 10:03 UTC
[Qemu-devel] [PATCH 3/7] linux-headers/kvm: add Hyper-V SynIC irq routing type and struct
On 26 October 2015 at 09:50, Andrey Smetanin <asmetanin at virtuozzo.com> wrote:> Signed-off-by: Andrey Smetanin <asmetanin at virtuozzo.com> > Reviewed-by: Roman Kagan <rkagan at virtuozzo.com> > Signed-off-by: Denis V. Lunev <den at openvz.org> > CC: Vitaly Kuznetsov <vkuznets at redhat.com> > CC: "K. Y. Srinivasan" <kys at microsoft.com> > CC: Gleb Natapov <gleb at kernel.org> > CC: Paolo Bonzini <pbonzini at redhat.com> > CC: Roman Kagan <rkagan at virtuozzo.com> > CC: Denis V. Lunev <den at openvz.org> > CC: kvm at vger.kernel.org > CC: virtualization at lists.linux-foundation.org > > --- > linux-headers/linux/kvm.h | 8 ++++++++ > 1 file changed, 8 insertions(+)Hi. Changes to linux-headers/ should only be made as part of an automated update from a mainline Linux kernel tree using the scripts/update-linux-headers.sh script. This patch looks like maybe it was a manual edit ? thanks -- PMM
On 26/10/2015 10:50, Andrey Smetanin wrote:> Hyper-V SynIC (synthetic interrupt controller) device > implementation. > > The implementation contains: > * msr's support > * irq routing setup > * irq injection > * irq ack callback registration > * event/message pages changes tracking at Hyper-V exit > * Hyper-V test device to test SynIC by kvm-unit-tests > > Andrey Smetanin (7): > standard-headers/x86: add Hyper-V SynIC constants > target-i386/kvm: Hyper-V SynIC MSR's support > linux-headers/kvm: add Hyper-V SynIC irq routing type and struct > kvm: Hyper-V SynIC irq routing support > linux-headers/kvm: KVM_EXIT_HYPERV type and struct > target-i386/hyperv: Hyper-V SynIC SINT routing and vCPU exit > hw/misc: Hyper-V test device 'hyperv-testdev' > > default-configs/i386-softmmu.mak | 1 + > default-configs/x86_64-softmmu.mak | 1 + > hw/misc/Makefile.objs | 1 + > hw/misc/hyperv_testdev.c | 164 ++++++++++++++++++++++++++++++ > include/standard-headers/asm-x86/hyperv.h | 12 +++ > include/sysemu/kvm.h | 1 + > kvm-all.c | 33 ++++++ > linux-headers/linux/kvm.h | 25 +++++ > target-i386/Makefile.objs | 2 +- > target-i386/cpu-qom.h | 1 + > target-i386/cpu.c | 1 + > target-i386/cpu.h | 5 + > target-i386/hyperv.c | 127 +++++++++++++++++++++++ > target-i386/hyperv.h | 42 ++++++++ > target-i386/kvm.c | 66 +++++++++++- > target-i386/machine.c | 39 +++++++ > 16 files changed, 519 insertions(+), 2 deletions(-) > create mode 100644 hw/misc/hyperv_testdev.c > create mode 100644 target-i386/hyperv.c > create mode 100644 target-i386/hyperv.h > > Signed-off-by: Andrey Smetanin <asmetanin at virtuozzo.com> > Reviewed-by: Roman Kagan <rkagan at virtuozzo.com> > Signed-off-by: Denis V. Lunev <den at openvz.org> > CC: Vitaly Kuznetsov <vkuznets at redhat.com> > CC: "K. Y. Srinivasan" <kys at microsoft.com> > CC: Gleb Natapov <gleb at kernel.org> > CC: Paolo Bonzini <pbonzini at redhat.com> > CC: Roman Kagan <rkagan at virtuozzo.com> > CC: Denis V. Lunev <den at openvz.org> > CC: kvm at vger.kernel.org > CC: virtualization at lists.linux-foundation.org >Reviewed-by: Paolo Bonzini <pbonzini at redhat.com>
Possibly Parallel Threads
- [kvm-unit-tests PATCH] x86: hyperv_synic: Hyper-V SynIC test
- [kvm-unit-tests PATCH] x86: hyperv_synic: Hyper-V SynIC test
- [kvm-unit-tests PATCH] x86: hyperv_synic: Hyper-V SynIC test
- [PATCH 1/2] kvm/x86: Hyper-V synthetic interrupt controller
- [PATCH 1/2] kvm/x86: Hyper-V synthetic interrupt controller