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| author |   Sean Christopherson <seanjc@google.com> | 2021-12-08 01:52:17 +0000 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2022-01-19 12:14:39 -0500 |
| commit | 98c25ead5eda5e9d41abe57839ad3e8caf19500c (patch) | |
| tree | 0c593e670307c915cfe9b9bea26983300f96ed26 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | KVM: Move x86 VMX's posted interrupt list_head to vcpu_vmx (diff) | |
| download | linux-dev-98c25ead5eda5e9d41abe57839ad3e8caf19500c.tar.xz linux-dev-98c25ead5eda5e9d41abe57839ad3e8caf19500c.zip | |
KVM: VMX: Move preemption timer <=> hrtimer dance to common x86
Handle the switch to/from the hypervisor/software timer when a vCPU is
blocking in common x86 instead of in VMX. Even though VMX is the only
user of a hypervisor timer, the logic and all functions involved are
generic x86 (unless future CPUs do something completely different and
implement a hypervisor timer that runs regardless of mode).
Handling the switch in common x86 will allow for the elimination of the
pre/post_blocks hooks, and also lets KVM switch back to the hypervisor
timer if and only if it was in use (without additional params). Add a
comment explaining why the switch cannot be deferred to kvm_sched_out()
or kvm_vcpu_block().
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20211208015236.1616697-8-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions