diff options
| author | Lai Jiangshan <laijs@linux.alibaba.com> | 2021-11-24 13:20:49 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-12-08 10:25:12 +0100 |
| commit | cc022ae144c1ce318643f821461295337280a1c0 (patch) | |
| tree | 05c3dbf3e3d7c6a032743cd9c7b581181a159dfa /arch/x86/kvm/vmx/capabilities.h | |
| parent | KVM: X86: Add huge_page_level to __reset_rsvds_bits_mask_ept() (diff) | |
| download | linux-cc022ae144c1ce318643f821461295337280a1c0.tar.xz linux-cc022ae144c1ce318643f821461295337280a1c0.zip | |
KVM: X86: Add parameter huge_page_level to kvm_init_shadow_ept_mmu()
The level of supported large page on nEPT affects the rsvds_bits_mask.
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Message-Id: <20211124122055.64424-8-jiangshanlai@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/capabilities.h')
| -rw-r--r-- | arch/x86/kvm/vmx/capabilities.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/capabilities.h b/arch/x86/kvm/vmx/capabilities.h index 4705ad55abb5..c8029b7845b6 100644 --- a/arch/x86/kvm/vmx/capabilities.h +++ b/arch/x86/kvm/vmx/capabilities.h @@ -312,6 +312,15 @@ static inline bool cpu_has_vmx_ept_1g_page(void) return vmx_capability.ept & VMX_EPT_1GB_PAGE_BIT; } +static inline int ept_caps_to_lpage_level(u32 ept_caps) +{ + if (ept_caps & VMX_EPT_1GB_PAGE_BIT) + return PG_LEVEL_1G; + if (ept_caps & VMX_EPT_2MB_PAGE_BIT) + return PG_LEVEL_2M; + return PG_LEVEL_4K; +} + static inline bool cpu_has_vmx_ept_ad_bits(void) { return vmx_capability.ept & VMX_EPT_AD_BIT; |