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Re: New Defects reported by Coverity Scan for XenProject
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 7 Apr 2025 09:26:01 +0200
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- Delivery-date: Mon, 07 Apr 2025 07:26:08 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 06.04.2025 13:36, scan-admin@xxxxxxxxxxxx wrote:
> Hi,
>
> Please find the latest report on new defect(s) introduced to XenProject found
> with Coverity Scan.
>
> 1 new defect(s) introduced to XenProject found with Coverity Scan.
>
>
> New defect(s) Reported-by: Coverity Scan
> Showing 1 of 1 defect(s)
>
>
> ** CID 1645644: Control flow issues (UNREACHABLE)
> /xen/arch/x86/hvm/vmx/vmcs.c: 774 in _vmx_cpu_up()
>
>
> ________________________________________________________________________________________________________
> *** CID 1645644: Control flow issues (UNREACHABLE)
> /xen/arch/x86/hvm/vmx/vmcs.c: 774 in _vmx_cpu_up()
> 768 vpid_sync_all();
> 769
> 770 vmx_pi_per_cpu_init(cpu);
> 771
> 772 return 0;
> 773
>>>> CID 1645644: Control flow issues (UNREACHABLE)
>>>> This code cannot be reached: "vmxon_fault:
> if (bios_locke...".
> 774 vmxon_fault:
> 775 if ( bios_locked &&
> 776 test_bit(X86_FEATURE_SMX, &boot_cpu_data.x86_capability) &&
> 777 (!(eax & IA32_FEATURE_CONTROL_ENABLE_VMXON_OUTSIDE_SMX) ||
> 778 !(eax & IA32_FEATURE_CONTROL_ENABLE_VMXON_INSIDE_SMX)) )
> 779 {
Is this perhaps an indication that Coverity doesn't understand asm goto()?
Jan
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