KVM: SVM: Use "is AVIC-addressable" helper to sanity check load()/put()

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Use avic_is_addressable_vcpu() instead of open coding a check on the bounds
of the allocated table for the sanity checks when loading/putting AVIC
state for a vCPU.  If KVM botches the allocation, then KVM will already
have performed an OOB write in avic_init_backing_page(), i.e. being super
paranoid in load()/put() doesn't provide meaningful protection in practice.

Cc: Naveen N Rao (AMD) <naveen@kernel.org>
Reviewed-by: Naveen N Rao (AMD) <naveen@kernel.org>
Link: https://patch.msgid.link/20260923155108.1550622-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Sean Christopherson 2026-09-23 08:51:07 -07:00

parent 86a24feec1

commit 12e0d427c3

1 changed files with 2 additions and 4 deletions

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arch/x86/kvm/svm/avic.c

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