[PATCH 01/10] use a more upstream friendly version of irqchip-in-kernel test

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Upstream now has tests for irqchip_in_kernel. It differs from our signature, as it does
not take any parameter. For consistency, convert our usage. Also, use a field in KVMState
to store it, so we can have the exact same function as qemu upstream does.

Signed-off-by: Glauber Costa <glommer@xxxxxxxxxx>
---
 exec.c         |    2 +-
 hw/apic.c      |   10 +++++-----
 hw/ioapic.c    |    6 +++---
 hw/msix.c      |   12 ++++++------
 hw/pc.c        |    2 +-
 hw/pci.c       |    2 +-
 kvm-all.c      |    2 ++
 qemu-kvm-x86.c |    8 ++++----
 qemu-kvm.c     |   10 +++-------
 qemu-kvm.h     |   13 ++++---------
 10 files changed, 30 insertions(+), 37 deletions(-)

diff --git a/exec.c b/exec.c
index 24956cf..fcffb0f 100644
--- a/exec.c
+++ b/exec.c
@@ -1570,7 +1570,7 @@ void cpu_interrupt(CPUState *env, int mask)
 
     old_mask = env->interrupt_request;
     env->interrupt_request |= mask;
-    if (kvm_enabled() && !qemu_kvm_irqchip_in_kernel())
+    if (kvm_enabled() && !kvm_irqchip_in_kernel())
 	kvm_update_interrupt_request(env);
 
 #ifndef CONFIG_USER_ONLY
diff --git a/hw/apic.c b/hw/apic.c
index 2952675..b8fe529 100644
--- a/hw/apic.c
+++ b/hw/apic.c
@@ -301,7 +301,7 @@ void cpu_set_apic_base(CPUState *env, uint64_t val)
 #endif
     if (!s)
         return;
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel())
+    if (kvm_enabled() && kvm_irqchip_in_kernel())
         s->apicbase = val;
     else
         s->apicbase = (val & 0xfffff000) |
@@ -509,7 +509,7 @@ void apic_init_reset(CPUState *env)
 
     env->halted = !(s->apicbase & MSR_IA32_APICBASE_BSP);
 #ifdef KVM_CAP_MP_STATE
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_irqchip_in_kernel()) {
         env->mp_state
             = env->halted ? KVM_MP_STATE_UNINITIALIZED : KVM_MP_STATE_RUNNABLE;
     }
@@ -961,7 +961,7 @@ static void kvm_kernel_lapic_load_from_user(APICState *s)
 void qemu_kvm_load_lapic(CPUState *env)
 {
 #ifdef KVM_CAP_IRQCHIP
-    if (kvm_enabled() && kvm_vcpu_inited(env) && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_vcpu_inited(env) && kvm_irqchip_in_kernel()) {
         kvm_kernel_lapic_load_from_user(env->apic_state);
     }
 #endif
@@ -972,7 +972,7 @@ static void apic_pre_save(void *opaque)
 #ifdef KVM_CAP_IRQCHIP
     APICState *s = (void *)opaque;
 
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_irqchip_in_kernel()) {
         kvm_kernel_lapic_save_to_user(s);
     }
 #endif
@@ -983,7 +983,7 @@ static int apic_post_load(void *opaque, int version_id)
 #ifdef KVM_CAP_IRQCHIP
     APICState *s = opaque;
 
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_irqchip_in_kernel()) {
         kvm_kernel_lapic_load_from_user(s);
     }
 #endif
diff --git a/hw/ioapic.c b/hw/ioapic.c
index cd62395..a66325d 100644
--- a/hw/ioapic.c
+++ b/hw/ioapic.c
@@ -244,7 +244,7 @@ static void ioapic_pre_save(void *opaque)
 {
     IOAPICState *s = (void *)opaque;
  
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_irqchip_in_kernel()) {
         kvm_kernel_ioapic_save_to_user(s);
     }
 }
@@ -263,7 +263,7 @@ static int ioapic_post_load(void *opaque, int version_id)
 {
     IOAPICState *s = opaque;
 
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_irqchip_in_kernel()) {
         kvm_kernel_ioapic_load_from_user(s);
     }
     return 0;
@@ -297,7 +297,7 @@ static void ioapic_reset(void *opaque)
     for(i = 0; i < IOAPIC_NUM_PINS; i++)
         s->ioredtbl[i] = 1 << 16; /* mask LVT */
 #ifdef KVM_CAP_IRQCHIP
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_irqchip_in_kernel()) {
         kvm_kernel_ioapic_load_from_user(s);
     }
 #endif
diff --git a/hw/msix.c b/hw/msix.c
index b68fb5f..c1e5eb8 100644
--- a/hw/msix.c
+++ b/hw/msix.c
@@ -221,7 +221,7 @@ static int msix_add_config(struct PCIDevice *pdev, unsigned short nentries,
 static void msix_free_irq_entries(PCIDevice *dev)
 {
     int vector;
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_irqchip_in_kernel()) {
         kvm_msix_free(dev);
     }
 
@@ -298,7 +298,7 @@ static void msix_mmio_writel(void *opaque, target_phys_addr_t addr,
     int vector = offset / MSIX_ENTRY_SIZE;
     int was_masked = msix_is_masked(dev, vector);
     memcpy(dev->msix_table_page + offset, &val, 4);
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_irqchip_in_kernel()) {
         kvm_msix_update(dev, vector, was_masked, msix_is_masked(dev, vector));
     }
     if (!msix_is_masked(dev, vector) && msix_is_pending(dev, vector)) {
@@ -354,7 +354,7 @@ int msix_init(struct PCIDevice *dev, unsigned short nentries,
         return -EINVAL;
 
 #ifdef KVM_CAP_IRQCHIP
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_irqchip_in_kernel()) {
         dev->msix_irq_entries = qemu_malloc(nentries *
                                             sizeof *dev->msix_irq_entries);
     }
@@ -478,7 +478,7 @@ void msix_notify(PCIDevice *dev, unsigned vector)
     }
 
 #ifdef KVM_CAP_IRQCHIP
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_irqchip_in_kernel()) {
         kvm_set_irq(dev->msix_irq_entries[vector].gsi, 1, NULL);
         return;
     }
@@ -516,7 +516,7 @@ int msix_vector_use(PCIDevice *dev, unsigned vector)
     if (dev->msix_entry_used[vector]) {
         return 0;
     }
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_irqchip_in_kernel()) {
         ret = kvm_msix_add(dev, vector);
         if (ret) {
             return ret;
@@ -531,7 +531,7 @@ void msix_vector_unuse(PCIDevice *dev, unsigned vector)
 {
     if (vector < dev->msix_entries_nr && dev->msix_entry_used[vector]) {
         --dev->msix_entry_used[vector];
-        if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+        if (kvm_enabled() && kvm_irqchip_in_kernel()) {
             kvm_msix_del(dev, vector);
         }
     }
diff --git a/hw/pc.c b/hw/pc.c
index f504f0b..9f53c97 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -1288,7 +1288,7 @@ static void pc_init1(ram_addr_t ram_size,
 
     cpu_irq = qemu_allocate_irqs(pic_irq_request, NULL, 1);
 #ifdef KVM_CAP_IRQCHIP
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
+    if (kvm_enabled() && kvm_irqchip_in_kernel()) {
         isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
         isa_irq = i8259 = kvm_i8259_init(cpu_irq[0]);
     } else
diff --git a/hw/pci.c b/hw/pci.c
index 4472910..5f6bae0 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -679,7 +679,7 @@ void pci_default_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int l)
     }
 
 #ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
-    if (kvm_enabled() && qemu_kvm_irqchip_in_kernel() &&
+    if (kvm_enabled() && kvm_irqchip_in_kernel() &&
         addr >= PIIX_CONFIG_IRQ_ROUTE &&
 	addr < PIIX_CONFIG_IRQ_ROUTE + 4)
         assigned_dev_update_irqs();
diff --git a/kvm-all.c b/kvm-all.c
index b2651df..1356aa8 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -155,12 +155,14 @@ static void kvm_reset_vcpu(void *opaque)
         abort();
     }
 }
+#endif
 
 int kvm_irqchip_in_kernel(void)
 {
     return kvm_state->irqchip_in_kernel;
 }
 
+#ifdef KVM_UPSTREAM
 int kvm_pit_in_kernel(void)
 {
     return kvm_state->pit_in_kernel;
diff --git a/qemu-kvm-x86.c b/qemu-kvm-x86.c
index acb1b91..a44ae67 100644
--- a/qemu-kvm-x86.c
+++ b/qemu-kvm-x86.c
@@ -284,7 +284,7 @@ int kvm_destroy_memory_alias(kvm_context_t kvm, uint64_t phys_start)
 int kvm_get_lapic(kvm_vcpu_context_t vcpu, struct kvm_lapic_state *s)
 {
 	int r;
-	if (!kvm_irqchip_in_kernel(vcpu->kvm))
+	if (!kvm_irqchip_in_kernel())
 		return 0;
 	r = ioctl(vcpu->fd, KVM_GET_LAPIC, s);
 	if (r == -1) {
@@ -297,7 +297,7 @@ int kvm_get_lapic(kvm_vcpu_context_t vcpu, struct kvm_lapic_state *s)
 int kvm_set_lapic(kvm_vcpu_context_t vcpu, struct kvm_lapic_state *s)
 {
 	int r;
-	if (!kvm_irqchip_in_kernel(vcpu->kvm))
+	if (!kvm_irqchip_in_kernel())
 		return 0;
 	r = ioctl(vcpu->fd, KVM_SET_LAPIC, s);
 	if (r == -1) {
@@ -1376,7 +1376,7 @@ int kvm_arch_halt(void *opaque, kvm_vcpu_context_t vcpu)
 
 void kvm_arch_pre_kvm_run(void *opaque, CPUState *env)
 {
-    if (!kvm_irqchip_in_kernel(kvm_context))
+    if (!kvm_irqchip_in_kernel())
 	kvm_set_cr8(env->kvm_cpu_state.vcpu_ctx, cpu_get_apic_tpr(env));
 }
 
@@ -1440,7 +1440,7 @@ void kvm_arch_cpu_reset(CPUState *env)
 {
     kvm_arch_load_regs(env);
     if (!cpu_is_bsp(env)) {
-	if (kvm_irqchip_in_kernel(kvm_context)) {
+	if (kvm_irqchip_in_kernel()) {
 #ifdef KVM_CAP_MP_STATE
 	    kvm_reset_mpstate(env->kvm_cpu_state.vcpu_ctx);
 #endif
diff --git a/qemu-kvm.c b/qemu-kvm.c
index a4a90ed..6bda694 100644
--- a/qemu-kvm.c
+++ b/qemu-kvm.c
@@ -558,6 +558,7 @@ void kvm_create_irqchip(kvm_context_t kvm)
         }
     }
 #endif
+    kvm_state->irqchip_in_kernel = kvm->irqchip_in_kernel;
 }
 
 int kvm_create(kvm_context_t kvm, unsigned long phys_mem_bytes, void **vm_mem)
@@ -1109,11 +1110,6 @@ int kvm_set_signal_mask(kvm_vcpu_context_t vcpu, const sigset_t *sigset)
     return r;
 }
 
-int kvm_irqchip_in_kernel(kvm_context_t kvm)
-{
-    return kvm->irqchip_in_kernel;
-}
-
 int kvm_pit_in_kernel(kvm_context_t kvm)
 {
     return kvm->pit_in_kernel;
@@ -1610,7 +1606,7 @@ void kvm_arch_get_registers(CPUState *env)
 	kvm_arch_save_regs(env);
 	kvm_arch_save_mpstate(env);
 #ifdef KVM_CAP_MP_STATE
-	if (kvm_irqchip_in_kernel(kvm_context))
+	if (kvm_irqchip_in_kernel())
 		env->halted = (env->mp_state == KVM_MP_STATE_HALTED);
 #endif
 }
@@ -1967,7 +1963,7 @@ static int kvm_main_loop_cpu(CPUState *env)
 
     while (1) {
         int run_cpu = !is_cpu_stopped(env);
-        if (run_cpu && !kvm_irqchip_in_kernel(kvm_context)) {
+        if (run_cpu && !kvm_irqchip_in_kernel()) {
             process_irqchip_events(env);
             run_cpu = !env->halted;
         }
diff --git a/qemu-kvm.h b/qemu-kvm.h
index 05b025f..e957e96 100644
--- a/qemu-kvm.h
+++ b/qemu-kvm.h
@@ -553,13 +553,6 @@ int kvm_dirty_pages_log_enable_all(kvm_context_t kvm);
  */
 int kvm_dirty_pages_log_reset(kvm_context_t kvm);
 
-/*!
- * \brief Query whether in kernel irqchip is used
- *
- * \param kvm Pointer to the current kvm_context
- */
-int kvm_irqchip_in_kernel(kvm_context_t kvm);
-
 #ifdef KVM_CAP_IRQCHIP
 /*!
  * \brief Dump in kernel IRQCHIP contents
@@ -1122,7 +1115,6 @@ int handle_tpr_access(void *opaque, kvm_vcpu_context_t vcpu, uint64_t rip,
 int kvm_has_sync_mmu(void);
 
 #define kvm_enabled() (kvm_allowed)
-#define qemu_kvm_irqchip_in_kernel() kvm_irqchip_in_kernel(kvm_context)
 #define qemu_kvm_pit_in_kernel() kvm_pit_in_kernel(kvm_context)
 #define qemu_kvm_has_gsi_routing() kvm_has_gsi_routing(kvm_context)
 #ifdef TARGET_I386
@@ -1134,7 +1126,6 @@ void kvm_load_tsc(CPUState *env);
 #define kvm_has_sync_mmu() (0)
 #define kvm_enabled() (0)
 #define kvm_nested 0
-#define qemu_kvm_irqchip_in_kernel() (0)
 #define qemu_kvm_pit_in_kernel() (0)
 #define qemu_kvm_has_gsi_routing() (0)
 #ifndef QEMU_KVM_NO_CPU
@@ -1210,6 +1201,8 @@ static inline int kvm_set_migration_log(int enable)
     return kvm_physical_memory_set_dirty_tracking(enable);
 }
 
+
+int kvm_irqchip_in_kernel(void);
 #ifdef CONFIG_KVM
 
 typedef struct KVMSlot {
@@ -1232,6 +1225,8 @@ typedef struct KVMState {
 #ifdef KVM_CAP_SET_GUEST_DEBUG
     struct kvm_sw_breakpoint_head kvm_sw_breakpoints;
 #endif
+    int irqchip_in_kernel;
+
     struct kvm_context kvm_context;
 } KVMState;
 
-- 
1.6.2.5

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