cpu: Partially revert "cpu: Change qemu_init_vcpu() argument to CPUState"
Commit c643bed99 moved qemu_init_vcpu() calls to common CPUState code.
This causes x86 cpu-add to fail with "KVM: setting VAPIC address failed".
The reason for the failure is that CPUClass::kvm_fd is not yet
initialized in the following call graph:
->x86_cpu_realizefn
->x86_cpu_apic_realize
->qdev_init
->device_set_realized
->device_reset (hotplugged == 1)
->apic_reset_common
->vapic_base_update
->kvm_apic_vapic_base_update
This causes attempted KVM vCPU ioctls to fail.
By contrast, in the non-hotplug case the APIC is reset much later, when
the vCPU is already initialized.
As a quick and safe solution, move the qemu_init_vcpu() call back into
the targets' realize functions.
Reported-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Acked-by: Igor Mammedov <imammedo@redhat.com> (for i386)
Tested-by: Jia Liu <proljc@gmail.com> (for openrisc)
Signed-off-by: Andreas Färber <afaerber@suse.de>
diff --git a/qom/cpu.c b/qom/cpu.c
index dbc9fb6..aa95108 100644
--- a/qom/cpu.c
+++ b/qom/cpu.c
@@ -228,8 +228,6 @@
{
CPUState *cpu = CPU(dev);
- qemu_init_vcpu(cpu);
-
if (dev->hotplugged) {
cpu_synchronize_post_init(cpu);
notifier_list_notify(&cpu_added_notifiers, dev);
diff --git a/target-alpha/cpu.c b/target-alpha/cpu.c
index 64c70bc..cfad2ea 100644
--- a/target-alpha/cpu.c
+++ b/target-alpha/cpu.c
@@ -33,8 +33,11 @@
static void alpha_cpu_realizefn(DeviceState *dev, Error **errp)
{
+ CPUState *cs = CPU(dev);
AlphaCPUClass *acc = ALPHA_CPU_GET_CLASS(dev);
+ qemu_init_vcpu(cs);
+
acc->parent_realize(dev, errp);
}
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index 87d35c6..5a7566b 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -159,6 +159,7 @@
static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
{
+ CPUState *cs = CPU(dev);
ARMCPU *cpu = ARM_CPU(dev);
ARMCPUClass *acc = ARM_CPU_GET_CLASS(dev);
CPUARMState *env = &cpu->env;
@@ -214,7 +215,8 @@
init_cpreg_list(cpu);
- cpu_reset(CPU(cpu));
+ cpu_reset(cs);
+ qemu_init_vcpu(cs);
acc->parent_realize(dev, errp);
}
diff --git a/target-cris/cpu.c b/target-cris/cpu.c
index 45f2d6b..44301a4 100644
--- a/target-cris/cpu.c
+++ b/target-cris/cpu.c
@@ -137,10 +137,11 @@
static void cris_cpu_realizefn(DeviceState *dev, Error **errp)
{
- CRISCPU *cpu = CRIS_CPU(dev);
+ CPUState *cs = CPU(dev);
CRISCPUClass *ccc = CRIS_CPU_GET_CLASS(dev);
- cpu_reset(CPU(cpu));
+ cpu_reset(cs);
+ qemu_init_vcpu(cs);
ccc->parent_realize(dev, errp);
}
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 2b59b7d..df2fb1b 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -2333,6 +2333,7 @@
static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
{
+ CPUState *cs = CPU(dev);
X86CPU *cpu = X86_CPU(dev);
X86CPUClass *xcc = X86_CPU_GET_CLASS(dev);
CPUX86State *env = &cpu->env;
@@ -2387,12 +2388,13 @@
#endif
mce_init(cpu);
+ qemu_init_vcpu(cs);
x86_cpu_apic_realize(cpu, &local_err);
if (local_err != NULL) {
goto out;
}
- cpu_reset(CPU(cpu));
+ cpu_reset(cs);
xcc->parent_realize(dev, &local_err);
out:
diff --git a/target-lm32/cpu.c b/target-lm32/cpu.c
index 962d553..869878c 100644
--- a/target-lm32/cpu.c
+++ b/target-lm32/cpu.c
@@ -46,10 +46,12 @@
static void lm32_cpu_realizefn(DeviceState *dev, Error **errp)
{
- LM32CPU *cpu = LM32_CPU(dev);
+ CPUState *cs = CPU(dev);
LM32CPUClass *lcc = LM32_CPU_GET_CLASS(dev);
- cpu_reset(CPU(cpu));
+ cpu_reset(cs);
+
+ qemu_init_vcpu(cs);
lcc->parent_realize(dev, errp);
}
diff --git a/target-m68k/cpu.c b/target-m68k/cpu.c
index c0bcb0d..008d8db 100644
--- a/target-m68k/cpu.c
+++ b/target-m68k/cpu.c
@@ -143,12 +143,14 @@
static void m68k_cpu_realizefn(DeviceState *dev, Error **errp)
{
+ CPUState *cs = CPU(dev);
M68kCPU *cpu = M68K_CPU(dev);
M68kCPUClass *mcc = M68K_CPU_GET_CLASS(dev);
m68k_cpu_init_gdb(cpu);
- cpu_reset(CPU(cpu));
+ cpu_reset(cs);
+ qemu_init_vcpu(cs);
mcc->parent_realize(dev, errp);
}
diff --git a/target-microblaze/cpu.c b/target-microblaze/cpu.c
index c75d1bd..0ef9aa4 100644
--- a/target-microblaze/cpu.c
+++ b/target-microblaze/cpu.c
@@ -90,10 +90,11 @@
static void mb_cpu_realizefn(DeviceState *dev, Error **errp)
{
- MicroBlazeCPU *cpu = MICROBLAZE_CPU(dev);
+ CPUState *cs = CPU(dev);
MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(dev);
- cpu_reset(CPU(cpu));
+ cpu_reset(cs);
+ qemu_init_vcpu(cs);
mcc->parent_realize(dev, errp);
}
diff --git a/target-mips/cpu.c b/target-mips/cpu.c
index f81f9e9..9dd47e8 100644
--- a/target-mips/cpu.c
+++ b/target-mips/cpu.c
@@ -62,10 +62,11 @@
static void mips_cpu_realizefn(DeviceState *dev, Error **errp)
{
- MIPSCPU *cpu = MIPS_CPU(dev);
+ CPUState *cs = CPU(dev);
MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(dev);
- cpu_reset(CPU(cpu));
+ cpu_reset(cs);
+ qemu_init_vcpu(cs);
mcc->parent_realize(dev, errp);
}
diff --git a/target-moxie/cpu.c b/target-moxie/cpu.c
index 6550be5..d97a091 100644
--- a/target-moxie/cpu.c
+++ b/target-moxie/cpu.c
@@ -45,10 +45,11 @@
static void moxie_cpu_realizefn(DeviceState *dev, Error **errp)
{
- MoxieCPU *cpu = MOXIE_CPU(dev);
+ CPUState *cs = CPU(dev);
MoxieCPUClass *mcc = MOXIE_CPU_GET_CLASS(dev);
- cpu_reset(CPU(cpu));
+ qemu_init_vcpu(cs);
+ cpu_reset(cs);
mcc->parent_realize(dev, errp);
}
diff --git a/target-openrisc/cpu.c b/target-openrisc/cpu.c
index aa269fb..075f00a 100644
--- a/target-openrisc/cpu.c
+++ b/target-openrisc/cpu.c
@@ -66,10 +66,11 @@
static void openrisc_cpu_realizefn(DeviceState *dev, Error **errp)
{
- OpenRISCCPU *cpu = OPENRISC_CPU(dev);
+ CPUState *cs = CPU(dev);
OpenRISCCPUClass *occ = OPENRISC_CPU_GET_CLASS(dev);
- cpu_reset(CPU(cpu));
+ qemu_init_vcpu(cs);
+ cpu_reset(cs);
occ->parent_realize(dev, errp);
}
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 8215946..3c81798 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -7861,6 +7861,8 @@
34, "power-spe.xml", 0);
}
+ qemu_init_vcpu(cs);
+
pcc->parent_realize(dev, errp);
#if defined(PPC_DUMP_CPU)
diff --git a/target-s390x/cpu.c b/target-s390x/cpu.c
index 1d16da3..9b82495 100644
--- a/target-s390x/cpu.c
+++ b/target-s390x/cpu.c
@@ -101,10 +101,11 @@
static void s390_cpu_realizefn(DeviceState *dev, Error **errp)
{
- S390CPU *cpu = S390_CPU(dev);
+ CPUState *cs = CPU(dev);
S390CPUClass *scc = S390_CPU_GET_CLASS(dev);
- cpu_reset(CPU(cpu));
+ qemu_init_vcpu(cs);
+ cpu_reset(cs);
scc->parent_realize(dev, errp);
}
diff --git a/target-sh4/cpu.c b/target-sh4/cpu.c
index bda3c51..34b2b57 100644
--- a/target-sh4/cpu.c
+++ b/target-sh4/cpu.c
@@ -240,10 +240,11 @@
static void superh_cpu_realizefn(DeviceState *dev, Error **errp)
{
- SuperHCPU *cpu = SUPERH_CPU(dev);
+ CPUState *cs = CPU(dev);
SuperHCPUClass *scc = SUPERH_CPU_GET_CLASS(dev);
- cpu_reset(CPU(cpu));
+ cpu_reset(cs);
+ qemu_init_vcpu(cs);
scc->parent_realize(dev, errp);
}
diff --git a/target-sparc/cpu.c b/target-sparc/cpu.c
index c7b4a90..47ce60d 100644
--- a/target-sparc/cpu.c
+++ b/target-sparc/cpu.c
@@ -743,6 +743,8 @@
{
SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(dev);
+ qemu_init_vcpu(CPU(dev));
+
scc->parent_realize(dev, errp);
}
diff --git a/target-unicore32/cpu.c b/target-unicore32/cpu.c
index 46813e5..3f78208 100644
--- a/target-unicore32/cpu.c
+++ b/target-unicore32/cpu.c
@@ -92,6 +92,8 @@
{
UniCore32CPUClass *ucc = UNICORE32_CPU_GET_CLASS(dev);
+ qemu_init_vcpu(CPU(dev));
+
ucc->parent_realize(dev, errp);
}
diff --git a/target-xtensa/cpu.c b/target-xtensa/cpu.c
index e966aa0..c19d17a 100644
--- a/target-xtensa/cpu.c
+++ b/target-xtensa/cpu.c
@@ -90,6 +90,8 @@
cs->gdb_num_regs = xcc->config->gdb_regmap.num_regs;
+ qemu_init_vcpu(cs);
+
xcc->parent_realize(dev, errp);
}
