• Sean Christopherson's avatar
    KVM: x86/mmu: Drop KVM's hugepage enums in favor of the kernel's enums · 3bae0459
    Sean Christopherson authored
    Replace KVM's PT_PAGE_TABLE_LEVEL, PT_DIRECTORY_LEVEL and PT_PDPE_LEVEL
    with the kernel's PG_LEVEL_4K, PG_LEVEL_2M and PG_LEVEL_1G.  KVM's
    enums are borderline impossible to remember and result in code that is
    visually difficult to audit, e.g.
    
            if (!enable_ept)
                    ept_lpage_level = 0;
            else if (cpu_has_vmx_ept_1g_page())
                    ept_lpage_level = PT_PDPE_LEVEL;
            else if (cpu_has_vmx_ept_2m_page())
                    ept_lpage_level = PT_DIRECTORY_LEVEL;
            else
                    ept_lpage_level = PT_PAGE_TABLE_LEVEL;
    
    versus
    
            if (!enable_ept)
                    ept_lpage_level = 0;
            else if (cpu_has_vmx_ept_1g_page())
                    ept_lpage_level = PG_LEVEL_1G;
            else if (cpu_has_vmx_ept_2m_page())
                    ept_lpage_level = PG_LEVEL_2M;
            else
                    ept_lpage_level = PG_LEVEL_4K;
    
    No functional change intended.
    Suggested-by: default avatarBarret Rhoden <brho@google.com>
    Signed-off-by: default avatarSean Christopherson <sean.j.christopherson@intel.com>
    Message-Id: <20200428005422.4235-4-sean.j.christopherson@intel.com>
    Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
    3bae0459
vmx.c 225 KB