KVM: nSVM: Use intuitive local variables in nested_vmcb02_recalc_intercepts()

Now that nested_vmcb02_recalc_intercepts() is explicitly scoped to deal
with *only* recalculating vmcb02 intercepts, rename its local variables to
use more intuivite names.  The current "c", "h", and "g" local variables,
for the current VMCB, vmcb01, and (cached) vmcb12 respectively, are short
and sweet, but don't do much to help unfamiliar readers understand what
the code is doing.

Use vmcb12_ctrl/vmcb01/vmcb02/vmcb12_ctrl in lieu of c/h/g to make it clear
the function is updating intercepts in vmcb02 based on the intercepts in
vmcb01 and (cached) vmcb12.

Opportunistically change the existing WARN_ON to a WARN_ON_ONCE so that a
KVM bug doesn't unintentionally DoS the host.

No functional change intended.

Signed-off-by: Yosry Ahmed <yosry.ahmed@linux.dev>
[sean: use WARN_ON_ONCE, keep local vmcb12 cache as vmcb12_ctrl]
Link: https://patch.msgid.link/20260218230958.2877682-6-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

0 files changed, 0 insertions, 0 deletions