KVM: VMX: Resume guest immediately when injecting #GP on ECREATE
authorSean Christopherson <seanjc@google.com>
Fri, 30 Sep 2022 23:31:32 +0000 (23:31 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 7 Jan 2023 10:11:47 +0000 (11:11 +0100)
commitc877c99ee5c0ce20d6eca98fc8c6925bed5359b7
treece9f8df741051d1555b2120a61df0ed48c2f0472
parent2d627fbb50267e89ad4070acdfef1c7845c33280
KVM: VMX: Resume guest immediately when injecting #GP on ECREATE

commit eb3992e833d3a17f9b0a3e0371d0b1d3d566f740 upstream.

Resume the guest immediately when injecting a #GP on ECREATE due to an
invalid enclave size, i.e. don't attempt ECREATE in the host.  The #GP is
a terminal fault, e.g. skipping the instruction if ECREATE is successful
would result in KVM injecting #GP on the instruction following ECREATE.

Fixes: 70210c044b4e ("KVM: VMX: Add SGX ENCLS[ECREATE] handler to enforce CPUID restrictions")
Cc: stable@vger.kernel.org
Cc: Kai Huang <kai.huang@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Kai Huang <kai.huang@intel.com>
Link: https://lore.kernel.org/r/20220930233132.1723330-1-seanjc@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/kvm/vmx/sgx.c