Messages in this thread | | | Date | Wed, 21 Sep 2022 20:16:03 +0000 | Subject | [PATCH 0/4] x86/hyperv: KVM: VMCB enlightenment cleanups | From | Sean Christopherson <> |
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Hyper-V folks, if the changes look ok I'd like to take this through the KVM tree as Vitaly has an in-progress KVM series[*] that conflicts mightily with these changes.
The main goal of this series it to clean up KVM's ugly casting of the VMCB's software reserved field to the Hyper-V enlightenments struct, e.g. replace a bunch of code that does:
(struct hv_enlightenments *)vmcb->control.reserved_sw;
with:
&vmcb->control.hv_enlightenments;
That cleanup is complicated slightly due the Hyper-V enlightenments being "KVM private", versus the VMCB struct being "public", but that itself is also a "bug". The enlightenments come directly from the TLFS, i.e. aren't KVM internal. Moving the definition to hyperv-tlfs.h where it belongs has the happy side effect of making the struct visible to asm/svm.h.
Compile tested only, but the resulting kvm-amd.ko binary is identical before and after the series.
[*] https://lore.kernel.org/all/20220921152436.3673454-1-vkuznets@redhat.com
Sean Christopherson (4): x86/hyperv: Move VMCB enlightenment definitions to hyperv-tlfs.h KVM: selftests: Move "struct hv_enlightenments" to x86_64/svm.h KVM: SVM: Add a proper field for Hyper-V VMCB enlightenments x86/hyperv: KVM: Rename "hv_enlightenments" to "hv_vmcb_enlightenments"
arch/x86/include/asm/hyperv-tlfs.h | 22 ++++++++++++ arch/x86/include/asm/svm.h | 7 +++- arch/x86/kvm/svm/hyperv.h | 35 ------------------- arch/x86/kvm/svm/nested.c | 9 +++-- arch/x86/kvm/svm/svm.h | 5 ++- arch/x86/kvm/svm/svm_onhyperv.c | 4 +-- arch/x86/kvm/svm/svm_onhyperv.h | 18 +++++----- .../selftests/kvm/include/x86_64/svm.h | 22 +++++++++++- .../selftests/kvm/x86_64/hyperv_svm_test.c | 21 +---------- 9 files changed, 69 insertions(+), 74 deletions(-) delete mode 100644 arch/x86/kvm/svm/hyperv.h
base-commit: 372d07084593dc7a399bf9bee815711b1fb1bcf2 -- 2.37.3.968.ga6b4b080e4-goog
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