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kvm: Rework VCPU synchronization

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During startup and after reset we have to synchronize user space to the
in-kernel KVM state. Namely, we need to transfer the VCPU registers when
they change due to VCPU as well as APIC reset.

This patch refactors the required hooks so that kvm_init_vcpu registers
its own per-VCPU reset handler and adds a cpu_synchronize_state to the
APIC reset. That way we no longer depend on the new reset order (and can
drop this disliked interface again) and we can even drop a KVM hook in
main().

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jan Kiszka 2009-06-27 09:24:58 +02:00 • committed by Anthony Liguori
parent e9283f8b88
commit 8d2ba1fb9c
4 changed files with 16 additions and 35 deletions
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1
kvm.h
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@ -32,7 +32,6 @@ struct kvm_run;
int kvm_init(int smp_cpus);
int kvm_init_vcpu(CPUState *env);
int kvm_sync_vcpus(void);
int kvm_cpu_exec(CPUState *env);