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KVM: x86: Don't panic the kernel if completing userspace I/O / MMIO goes sideways
authorSean Christopherson <seanjc@google.com>
Wed, 25 Feb 2026 01:20:48 +0000 (17:20 -0800)
committerSean Christopherson <seanjc@google.com>
Tue, 3 Mar 2026 00:02:53 +0000 (16:02 -0800)
commit4f09e62afcd6c7a2c3428a3453ced7e56475dc70
tree7c8158281d6e8c18f1e1381634897c5deaf8dc98tree | snapshot
parent216729846603d5be668a84d75c88ae097c27ae61commit | diff
KVM: x86: Don't panic the kernel if completing userspace I/O / MMIO goes sideways

Kill the VM instead of the host kernel if KVM botches I/O and/or MMIO
handling.  There is zero danger to the host or guest, i.e. panicking the
host isn't remotely justified.

Tested-by: Tom Lendacky <thomas.lendacky@gmail.com>
Tested-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Link: https://patch.msgid.link/20260225012049.920665-14-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
arch/x86/kvm/x86.c diff | blob | blame | history
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