From 8176472563fb1a233f46f3f0441738c82afd88da Mon Sep 17 00:00:00 2001 From: Peng Hao Date: Mon, 28 Feb 2022 11:07:49 +0800 Subject: [PATCH] kvm: x86: Adjust the location of pkru_mask of kvm_mmu to reduce memory Adjust the field pkru_mask to the back of direct_map to make up 8-byte alignment.This reduces the size of kvm_mmu by 8 bytes. Signed-off-by: Peng Hao Message-Id: <20220228030749.88353-1-flyingpeng@tencent.com> Signed-off-by: Paolo Bonzini --- arch/x86/include/asm/kvm_host.h | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index f1dfa06..e9c9a23 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -443,14 +443,6 @@ struct kvm_mmu { u8 shadow_root_level; u8 ept_ad; bool direct_map; - struct kvm_mmu_root_info prev_roots[KVM_MMU_NUM_PREV_ROOTS]; - - /* - * Bitmap; bit set = permission fault - * Byte index: page fault error code [4:1] - * Bit index: pte permissions in ACC_* format - */ - u8 permissions[16]; /* * The pkru_mask indicates if protection key checks are needed. It @@ -460,6 +452,15 @@ struct kvm_mmu { */ u32 pkru_mask; + struct kvm_mmu_root_info prev_roots[KVM_MMU_NUM_PREV_ROOTS]; + + /* + * Bitmap; bit set = permission fault + * Byte index: page fault error code [4:1] + * Bit index: pte permissions in ACC_* format + */ + u8 permissions[16]; + u64 *pae_root; u64 *pml4_root; u64 *pml5_root; -- 2.7.4