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| author | Christoffer Dall <christoffer.dall@linaro.org> | 2015-08-27 16:41:15 +0200 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2015-10-22 23:01:41 +0200 |
| commit | 3217f7c25bca66eed9b07f0b8bfd1937169b0736 (patch) | |
| tree | 560fff562044ed7bed3f3ee0e1d1ce91e708d180 /virt | |
| parent | 0d997491f814c87310a6ad7be30a9049c7150489 (diff) | |
| download | linux-3217f7c25bca66eed9b07f0b8bfd1937169b0736.tar.gz linux-3217f7c25bca66eed9b07f0b8bfd1937169b0736.tar.bz2 linux-3217f7c25bca66eed9b07f0b8bfd1937169b0736.zip | |
KVM: Add kvm_arch_vcpu_{un}blocking callbacks
Some times it is useful for architecture implementations of KVM to know
when the VCPU thread is about to block or when it comes back from
blocking (arm/arm64 needs to know this to properly implement timers, for
example).
Therefore provide a generic architecture callback function in line with
what we do elsewhere for KVM generic-arch interactions.
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/kvm_main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 8db1d9361993..7873d6daccb1 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2018,6 +2018,8 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu) } while (single_task_running() && ktime_before(cur, stop)); } + kvm_arch_vcpu_blocking(vcpu); + for (;;) { prepare_to_wait(&vcpu->wq, &wait, TASK_INTERRUPTIBLE); @@ -2031,6 +2033,7 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu) finish_wait(&vcpu->wq, &wait); cur = ktime_get(); + kvm_arch_vcpu_unblocking(vcpu); out: block_ns = ktime_to_ns(cur) - ktime_to_ns(start); |