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| author | Maxim Levitsky <mlevitsk@redhat.com> | 2021-08-11 15:29:22 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-08-20 16:06:37 -0400 |
| commit | 7a4bca85b23f7a573da61f161dfbf8b00e9e2955 (patch) | |
| tree | 9b7f4ad74ed5ba9fad4c82c6adc65bbf1ae89e0a /arch/x86 | |
| parent | 9653f2da7522c5e762e2edd2beb53170669d0a2b (diff) | |
| download | linux-stable-7a4bca85b23f7a573da61f161dfbf8b00e9e2955.tar.gz linux-stable-7a4bca85b23f7a573da61f161dfbf8b00e9e2955.tar.bz2 linux-stable-7a4bca85b23f7a573da61f161dfbf8b00e9e2955.zip | |
KVM: SVM: split svm_handle_invalid_exit
Split the check for having a vmexit handler to svm_check_exit_valid,
and make svm_handle_invalid_exit only handle a vmexit that is
already not valid.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210811122927.900604-2-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 7b58e445a967..e45259177009 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -3236,12 +3236,14 @@ static void dump_vmcb(struct kvm_vcpu *vcpu) "excp_to:", save->last_excp_to); } -static int svm_handle_invalid_exit(struct kvm_vcpu *vcpu, u64 exit_code) +static bool svm_check_exit_valid(struct kvm_vcpu *vcpu, u64 exit_code) { - if (exit_code < ARRAY_SIZE(svm_exit_handlers) && - svm_exit_handlers[exit_code]) - return 0; + return (exit_code < ARRAY_SIZE(svm_exit_handlers) && + svm_exit_handlers[exit_code]); +} +static int svm_handle_invalid_exit(struct kvm_vcpu *vcpu, u64 exit_code) +{ vcpu_unimpl(vcpu, "svm: unexpected exit reason 0x%llx\n", exit_code); dump_vmcb(vcpu); vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR; @@ -3249,14 +3251,13 @@ static int svm_handle_invalid_exit(struct kvm_vcpu *vcpu, u64 exit_code) vcpu->run->internal.ndata = 2; vcpu->run->internal.data[0] = exit_code; vcpu->run->internal.data[1] = vcpu->arch.last_vmentry_cpu; - - return -EINVAL; + return 0; } int svm_invoke_exit_handler(struct kvm_vcpu *vcpu, u64 exit_code) { - if (svm_handle_invalid_exit(vcpu, exit_code)) - return 0; + if (!svm_check_exit_valid(vcpu, exit_code)) + return svm_handle_invalid_exit(vcpu, exit_code); #ifdef CONFIG_RETPOLINE if (exit_code == SVM_EXIT_MSR) |