kvm: x86: abstract locking around pvclock_update_vm_gtod_copy

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Updates to the kvmclock parameters needs to do a complicated dance of
KVM_REQ_MCLOCK_INPROGRESS and KVM_REQ_CLOCK_UPDATE in addition to taking
pvclock_gtod_sync_lock.  Place that in two functions that can be called
on all of master clock update, KVM_SET_CLOCK, and Hyper-V reenlightenment.

Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Paolo Bonzini 2021-09-16 18:15:32 +00:00

parent 3e44dce4d0

commit 6b6fcd2804

2 changed files with 29 additions and 34 deletions

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arch/x86/include/asm/kvm_host.h

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62

arch/x86/kvm/x86.c

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