KVM: x86: Widen x86_exception's error_code to 64 bits

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Widen the error_code field in struct x86_exception from u16 to u64 to
accommodate AMD's NPF error code, which defines information bits above
bit 31, e.g. PFERR_GUEST_FINAL_MASK (bit 32), and PFERR_GUEST_PAGE_MASK
(bit 33).

Retain the u16 type for the local errcode variable in walk_addr_generic
as the walker synthesizes conventional #PF error codes that are
architecturally limited to bits 15:0.

Signed-off-by: Kevin Cheng <chengkev@google.com>
Link: https://patch.msgid.link/20260522232701.3671446-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Kevin Cheng 2026-05-22 16:26:57 -07:00 • committed by Sean Christopherson

parent 66472e8670

commit bb24edbb67

2 changed files with 7 additions and 1 deletions

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2

arch/x86/kvm/kvm_emulate.h

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6

arch/x86/kvm/mmu/paging_tmpl.h

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