Use the new ioctl's to save and restore the MP_STATE for all vcpu's.
Fixes SMP migration.
Signed-off-by: Marcelo Tosatti <[EMAIL PROTECTED]>
Index: kvm-userspace.io/libkvm/libkvm.c
===================================================================
--- kvm-userspace.io.orig/libkvm/libkvm.c
+++ kvm-userspace.io/libkvm/libkvm.c
@@ -776,6 +776,17 @@ int kvm_set_sregs(kvm_context_t kvm, int
return ioctl(kvm->vcpu_fd[vcpu], KVM_SET_SREGS, sregs);
}
+int kvm_get_mpstate(kvm_context_t kvm, int vcpu, int *mpstate)
+{
+ return ioctl(kvm->vcpu_fd[vcpu], KVM_GET_MP_STATE, mpstate);
+}
+
+int kvm_set_mpstate(kvm_context_t kvm, int vcpu, int *mpstate)
+{
+ return ioctl(kvm->vcpu_fd[vcpu], KVM_SET_MP_STATE, mpstate);
+}
+
+
static int handle_mmio(kvm_context_t kvm, struct kvm_run *kvm_run)
{
unsigned long addr = kvm_run->mmio.phys_addr;
Index: kvm-userspace.io/libkvm/libkvm.h
===================================================================
--- kvm-userspace.io.orig/libkvm/libkvm.h
+++ kvm-userspace.io/libkvm/libkvm.h
@@ -301,6 +301,18 @@ int kvm_get_sregs(kvm_context_t kvm, int
int kvm_set_sregs(kvm_context_t kvm, int vcpu, struct kvm_sregs *regs);
/*!
+ * * \brief Read VCPU MP state
+ *
+ */
+int kvm_get_mpstate(kvm_context_t kvm, int vcpu, int *mpstate);
+
+/*!
+ * * \brief Write VCPU MP state
+ *
+ */
+int kvm_set_mpstate(kvm_context_t kvm, int vcpu, int *mpstate);
+
+/*!
* \brief Simulate an external vectored interrupt
*
* This allows you to simulate an external vectored interrupt.
Index: kvm-userspace.io/qemu/qemu-kvm-x86.c
===================================================================
--- kvm-userspace.io.orig/qemu/qemu-kvm-x86.c
+++ kvm-userspace.io/qemu/qemu-kvm-x86.c
@@ -282,6 +282,15 @@ void kvm_arch_load_regs(CPUState *env)
perror("kvm_set_msrs FAILED");
}
+void kvm_save_mpstate(CPUState *env)
+{
+ kvm_get_mpstate(kvm_context, env->cpu_index, &env->mp_state);
+}
+
+void kvm_load_mpstate(CPUState *env)
+{
+ kvm_set_mpstate(kvm_context, env->cpu_index, &env->mp_state);
+}
void kvm_arch_save_regs(CPUState *env)
{
Index: kvm-userspace.io/qemu/qemu-kvm.h
===================================================================
--- kvm-userspace.io.orig/qemu/qemu-kvm.h
+++ kvm-userspace.io/qemu/qemu-kvm.h
@@ -18,6 +18,8 @@ int kvm_init_ap(void);
void kvm_qemu_destroy(void);
void kvm_load_registers(CPUState *env);
void kvm_save_registers(CPUState *env);
+void kvm_load_mpstate(CPUState *env);
+void kvm_save_mpstate(CPUState *env);
int kvm_cpu_exec(CPUState *env);
int kvm_update_debugger(CPUState *env);
int kvm_qemu_init_env(CPUState *env);
Index: kvm-userspace.io/qemu/target-i386/cpu.h
===================================================================
--- kvm-userspace.io.orig/qemu/target-i386/cpu.h
+++ kvm-userspace.io/qemu/target-i386/cpu.h
@@ -599,6 +599,7 @@ typedef struct CPUX86State {
/* in order to simplify APIC support, we leave this pointer to the
user */
struct APICState *apic_state;
+ int mp_state;
} CPUX86State;
CPUX86State *cpu_x86_init(const char *cpu_model);
Index: kvm-userspace.io/qemu/vl.c
===================================================================
--- kvm-userspace.io.orig/qemu/vl.c
+++ kvm-userspace.io/qemu/vl.c
@@ -6655,8 +6655,10 @@ void cpu_save(QEMUFile *f, void *opaque)
uint32_t hflags;
int i;
- if (kvm_enabled())
+ if (kvm_enabled()) {
kvm_save_registers(env);
+ kvm_save_mpstate(env);
+ }
for(i = 0; i < CPU_NB_REGS; i++)
qemu_put_betls(f, &env->regs[i]);
@@ -6748,6 +6750,7 @@ void cpu_save(QEMUFile *f, void *opaque)
qemu_put_be32s(f, &env->kvm_interrupt_bitmap[i]);
}
qemu_put_be64s(f, &env->tsc);
+ qemu_put_be32s(f, &env->mp_state);
}
}
@@ -6899,7 +6902,9 @@ int cpu_load(QEMUFile *f, void *opaque,
qemu_get_be32s(f, &env->kvm_interrupt_bitmap[i]);
}
qemu_get_be64s(f, &env->tsc);
+ qemu_get_be32s(f, &env->mp_state);
kvm_load_registers(env);
+ kvm_load_mpstate(env);
}
return 0;
}
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