linux-kernel - [PATCH 0/2] KVM: VMX: Fixes for faults on ENCLS emulation

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Message-ID: <20230405234556.696927-1-seanjc@google.com>
Date:   Wed,  5 Apr 2023 16:45:54 -0700
From:   Sean Christopherson <seanjc@...gle.com>
To:     Sean Christopherson <seanjc@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Binbin Wu <binbin.wu@...ux.intel.com>,
        Kai Huang <kai.huang@...el.com>
Subject: [PATCH 0/2] KVM: VMX: Fixes for faults on ENCLS emulation

Found-by-inspection (when reviewing Binbin's patch) fixes for incorrect
emulation of faults when KVMintercepts and emulates (sort of) ENCLS.

Very much compile tested only.  Ideally, someone with SGX hardware can
confirm that these patches are correct, e.g. my assessment that KVM needs
to manually check CR0.PG is based purely of SDM pseudocode.

Sean Christopherson (2):
  KVM: VMX: Inject #GP on ENCLS if vCPU has paging disabled (CR0.PG==0)
  KVM: VMX: Inject #GP, not #UD, if SGX2 ENCLS leafs are unsupported

 arch/x86/kvm/vmx/sgx.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)


base-commit: 27d6845d258b67f4eb3debe062b7dacc67e0c393
-- 
2.40.0.348.gf938b09366-goog