Mingwei Zhang bb2baeb214 KVM: SVM: improve the code readability for ASID management ... KVM SEV code uses bitmaps to manage ASID states. ASID 0 was always skipped because it is never used by VM. Thus, in existing code, ASID value and its bitmap postion always has an 'offset-by-1' relationship. Both SEV and SEV-ES shares the ASID space, thus KVM uses a dynamic range [min_asid, max_asid] to handle SEV and SEV-ES ASIDs separately. Existing code mixes the usage of ASID value and its bitmap position by using the same variable called 'min_asid'. Fix the min_asid usage: ensure that its usage is consistent with its name; allocate extra size for ASID 0 to ensure that each ASID has the same value with its bitmap position. Add comments on ASID bitmap allocation to clarify the size change. Signed-off-by: Mingwei Zhang <mizhang@google.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Marc Orr <marcorr@google.com> Cc: David Rientjes <rientjes@google.com> Cc: Alper Gun <alpergun@google.com> Cc: Dionna Glaze <dionnaglaze@google.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Vipin Sharma <vipinsh@google.com> Cc: Peter Gonda <pgonda@google.com> Cc: Joerg Roedel <joro@8bytes.org> Message-Id: <20210802180903.159381-1-mizhang@google.com> [Fix up sev_asid_free to also index by ASID, as suggested by Sean Christopherson, and use nr_asids in sev_cpu_init. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2021-08-04 09:43:03 -04:00
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avic.c	KVM: SVM: use vmcb01 in svm_refresh_apicv_exec_ctrl	2021-07-27 16:59:01 -04:00
nested.c	KVM: SVM: tweak warning about enabled AVIC on nested entry	2021-07-27 16:59:01 -04:00
pmu.c	KVM: x86/vPMU: Forbid writing to MSR_F15H_PERF MSRs when guest doesn't have X86_FEATURE_PERFCTR_CORE	2021-03-30 13:07:10 -04:00
sev.c	KVM: SVM: improve the code readability for ASID management	2021-08-04 09:43:03 -04:00
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	KVM: SVM: use vmsave/vmload for saving/restoring additional host state	2021-02-04 05:27:34 -05:00
svm.c	KVM: SVM: svm_set_vintr don't warn if AVIC is active but is about to be deactivated	2021-07-27 16:59:00 -04:00
svm.h	KVM: nSVM: Swap the parameter order for svm_copy_vmrun_state()/svm_copy_vmloadsave_state()	2021-07-26 08:09:46 -04:00
vmenter.S	KVM/SVM: Move vmenter.S exception fixups out of line	2021-03-15 04:43:56 -04:00