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linux/arch/x86/kvm/svm
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Like Xu 4732f2444a KVM: x86: Making the module parameter of vPMU more common 
The new module parameter to control PMU virtualization should apply
to Intel as well as AMD, for situations where userspace is not trusted.
If the module parameter allows PMU virtualization, there could be a
new KVM_CAP or guest CPUID bits whereby userspace can enable/disable
PMU virtualization on a per-VM basis.

If the module parameter does not allow PMU virtualization, there
should be no userspace override, since we have no precedent for
authorizing that kind of override. If it's false, other counter-based
profiling features (such as LBR including the associated CPUID bits
if any) will not be exposed.

Change its name from "pmu" to "enable_pmu" as we have temporary
variables with the same name in our code like "struct kvm_pmu *pmu".

Fixes: b1d66dad65 ("KVM: x86/svm: Add module param to control PMU virtualization")
Suggested-by : Jim Mattson <jmattson@google.com>
Signed-off-by: Like Xu <likexu@tencent.com>
Message-Id: <20220111073823.21885-1-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-17 12:56:03 -05:00
..
avic.c KVM: SVM: Ensure target pCPU is read once when signalling AVIC doorbell 2021-12-08 04:24:45 -05:00
nested.c KVM: X86: Remove mmu parameter from load_pdptrs() 2021-12-08 04:25:14 -05:00
pmu.c KVM: x86: Making the module parameter of vPMU more common 2022-01-17 12:56:03 -05:00
sev.c KVM: Use 'unsigned long' as kvm_for_each_vcpu()'s index 2021-12-08 04:24:15 -05:00
svm_onhyperv.c KVM: SVM: hyper-v: Direct Virtual Flush support 2021-06-17 13:09:38 -04:00
svm_onhyperv.h KVM: SVM: delay svm_vcpu_init_msrpm after svm->vmcb is initialized 2021-07-27 16:59:00 -04:00
svm_ops.h x86/kvm: Always inline vmload() / vmsave() 2021-09-15 15:51:45 +02:00
svm.c KVM: x86: Making the module parameter of vPMU more common 2022-01-17 12:56:03 -05:00
svm.h KVM: x86: Making the module parameter of vPMU more common 2022-01-17 12:56:03 -05:00
vmenter.S KVM/SVM: Move vmenter.S exception fixups out of line 2021-03-15 04:43:56 -04:00