Re: [PATCH v2 0/6] KVM/x86: Drop "1" as MSR emulation return value

[Juergen Gross <jgross@suse.com>]

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Please disregard this series, there is one complication sashiko made me
aware of.


Juergen

On 28.05.26 13:35, Juergen Gross wrote:
> Get rid of the literal "1" used as general error return value in KVM
> MSR emulation. It can easily be replaced by negative errno values
> instead.
> 
> This is meant to avoid confusion with the literal "1" used as return
> value for "return to guest".
> 
> Changes in V2:
> - series carved out from initial "KVM: Avoid literal numbers as return
>    values" series
> - don't use new KVM_MSR_RET_* defines, but 0 and -errno
> 
> Juergen Gross (6):
>    KVM/x86: Change comment before KVM_MSR_RET_* defines
>    KVM/x86: Return -errno instead of "1" for APIC related MSR emulation
>    KVM/x86: Return -errno instead of "1" for Hyper-V related MSR
>      emulation
>    KVM/x86: Return -errno instead of "1" for VMX related MSR emulation
>    KVM/x86: Return -errno instead of "1" for SVM related MSR emulation
>    KVM/x86: Return -errno instead of "1" for common MSR emulation
> 
>   arch/x86/kvm/hyperv.c        |  72 ++++++++++++-------------
>   arch/x86/kvm/lapic.c         |  39 +++++++-------
>   arch/x86/kvm/mtrr.c          |   6 +--
>   arch/x86/kvm/pmu.c           |   8 +--
>   arch/x86/kvm/svm/pmu.c       |   4 +-
>   arch/x86/kvm/svm/svm.c       |  36 ++++++-------
>   arch/x86/kvm/vmx/nested.c    |   2 +-
>   arch/x86/kvm/vmx/pmu_intel.c |  16 +++---
>   arch/x86/kvm/vmx/tdx.c       |  10 ++--
>   arch/x86/kvm/vmx/vmx.c       |  96 ++++++++++++++++-----------------
>   arch/x86/kvm/x86.c           | 102 +++++++++++++++++------------------
>   arch/x86/kvm/x86.h           |   4 +-
>   arch/x86/kvm/xen.c           |  10 ++--
>   13 files changed, 202 insertions(+), 203 deletions(-)
> 


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