Re: [PATCH 0/1] MR8591: ntdll: Fill EnabledFeatures before return.

[Dmitry Timoshkov (＠dmitry)]

On Sat Jul 19 15:24:14 2025 +0000, Bernhard Übelacker wrote:
> Unfortunately a VM with `cpu host` is not possible because this CPU
> misses the vmx/Intel-VT extension ... Had hoped I can avoid installing a
> Windows 7 on this machine.
> See below the output of the ntdll:virtual test inside a Windows 7.
> If I read it right my change is then not reflecting what Windows does.
> But would that mean using `EnabledFeatures` in
> `__wine_syscall_dispatcher` is wrong?
> C:\temp> ntdll_test.exe virtual
> virtual.c:3293: system page size 0x1000
> virtual.c:313: Tests skipped: NtAllocateVirtualMemoryEx() is missing
> virtual.c:722: Tests skipped: NtAllocateVirtualMemoryEx() is missing
> virtual.c:1662: Test failed: NtMapViewOfSection returned address 000007FEFC300000
> virtual.c:1692: Tests skipped: NtMapViewOfSectionEx() is not supported.
> virtual.c:2516: Tests skipped: no NtSetInformationVirtualMemory in ntdll
> virtual.c:2033: XState EnabledFeatures 0xf95a0000,
> EnabledSupervisorFeatures 0, EnabledVolatileFeatures 3.
> virtual.c:2038: Test failed: Got unexpected feature_mask 3.
> virtual.c:2038: this is the last test seen before the exception
> 0374:virtual: unhandled exception c0000005 at 0000000000000000
>
> For completeness, this is the lscpu output:
> root@aspire8735:~# lscpu
> Architektur:                       x86_64
>   CPU Operationsmodus:             32-bit, 64-bit
>   Adressgrößen:                    36 bits physical, 48 bits virtual
>   Byte-Reihenfolge:                Little Endian
> CPU(s):                            2
>   Liste der Online-CPU(s):         0,1
> Anbieterkennung:                   GenuineIntel
>   BIOS-Anbieterkennung:            Intel
>   Modellname:                      Pentium(R) Dual-Core CPU       T4500
>  @ 2.30GHz
>     BIOS-Modellname:               CPU Version  CPU @ 2.3GHz
>     BIOS-Prozessorfamilie:         190
>     Prozessorfamilie:              6
>     Modell:                        23
>     Thread(s) pro Kern:            1
>     Kern(e) pro Sockel:            2
>     Sockel:                        1
>     Stepping:                      10
>     Skalierung der CPU(s):         52%
>     Maximale Taktfrequenz der CPU: 2300,0000
>     Minimale Taktfrequenz der CPU: 1200,0000
>     BogoMIPS:                      4588,54
>     Markierungen:                  fpu vme de pse tsc msr pae mce cx8
> apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2
> ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl 
>                                    cpuid aperfmperf pni dtes64 monitor
> ds_cpl est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm pti dtherm
> Caches (Gesamtsumme):              
>   L1d:                             64 KiB (2 Instanzen)
>   L1i:                             64 KiB (2 Instanzen)
>   L2:                              1 MiB (1 Instanz)
> NUMA:                              
>   NUMA-Knoten:                     1
>   NUMA-Knoten0 CPU(s):             0,1
> Schwachstellen:                    
>   Gather data sampling:            Not affected
>   Indirect target selection:       Not affected
>   Itlb multihit:                   KVM: Mitigation: VMX unsupported
>   L1tf:                            Mitigation; PTE Inversion
>   Mds:                             Vulnerable: Clear CPU buffers
> attempted, no microcode; SMT disabled
>   Meltdown:                        Mitigation; PTI
>   Mmio stale data:                 Unknown: No mitigations
>   Reg file data sampling:          Not affected
>   Retbleed:                        Not affected
>   Spec rstack overflow:            Not affected
>   Spec store bypass:               Vulnerable
>   Spectre v1:                      Mitigation; usercopy/swapgs barriers
> and __user pointer sanitization
>   Spectre v2:                      Mitigation; Retpolines; STIBP
> disabled; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected
>   Srbds:                           Not affected
>   Tsx async abort:                 Not affected
> root@aspire8735:~#

Is using a USB drive with Windows 7 an option?