Re: [PATCH v3 11/25] KVM: TDX: Avoid a double-KVM_BUG_ON() in tdx_sept_zap_private_spte()
From: Huang, Kai <hidden>
Date: 2025-10-23 22:21:53
Also in:
kvm, kvm-riscv, kvmarm, linux-arm-kernel, linux-coco, linux-mips, linux-riscv, lkml, loongarch
On Thu, 2025-10-16 at 17:32 -0700, Sean Christopherson wrote:
Return -EIO immediately from tdx_sept_zap_private_spte() if the number of to-be-added pages underflows, so that the following "KVM_BUG_ON(err, kvm)" isn't also triggered. Isolating the check from the "is premap error" if-statement will also allow adding a lockdep assertion that premap errors are encountered if and only if slots_lock is held. Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com> Reviewed-by: Binbin Wu <redacted> Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Kai Huang <redacted>