x86/KVM/VMX: Move the l1tf_flush_l1d test to vmx_l1d_flush()

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Currently, vmx_vcpu_run() checks if l1tf_flush_l1d is set and invokes
vmx_l1d_flush() if so.

This test is unncessary for the "always flush L1D" mode.

Move the check to vmx_l1d_flush()'s conditional mode code path.

Notes:
- vmx_l1d_flush() is likely to get inlined anyway and thus, there's no
  extra function call.
  
- This inverts the (static) branch prediction, but there hadn't been any
  explicit likely()/unlikely() annotations before and so it stays as is.

Signed-off-by: Nicolai Stange <nstange@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

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Nicolai Stange 2018-07-21 22:35:28 +02:00 • committed by Thomas Gleixner

parent 427362a142

commit 5b6ccc6c3b

1 changed files with 6 additions and 4 deletions

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arch/x86/kvm/vmx.c

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