[PATCH V3 10/12] KVM: X86/MMU: Remove unused INVALID_PAE_ROOT and IS_VALID_PAE_ROOT

Lai Jiangshan
2022-05-21T13:17:57Z

From: Lai Jiangshan <jiangshan.ljs@antgroup.com>

They are unused and replaced with 0ull like other zero sptes and
is_shadow_present_pte().

Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
---
arch/x86/kvm/mmu/mmu_internal.h | 10 ----------
1 file changed, 10 deletions(-)

diff --git a/arch/x86/kvm/mmu/mmu_internal.h b/arch/x86/kvm/mmu/mmu_internal.h
index bd2a26897b97..4feb1ac2742c 100644
--- a/arch/x86/kvm/mmu/mmu_internal.h
+++ b/arch/x86/kvm/mmu/mmu_internal.h
@@ -20,16 +20,6 @@ extern bool dbg;
#define MMU_WARN_ON(x) do { } while (0)
#endif

-/*
- * Unlike regular MMU roots, PAE "roots", a.k.a. PDPTEs/PDPTRs, have a PRESENT
- * bit, and thus are guaranteed to be non-zero when valid. And, when a guest
- * PDPTR is !PRESENT, its corresponding PAE root cannot be set to INVALID_PAGE,
- * as the CPU would treat that as PRESENT PDPTR with reserved bits set. Use
- * '0' instead of INVALID_PAGE to indicate an invalid PAE root.
- */
-#define INVALID_PAE_ROOT 0
-#define IS_VALID_PAE_ROOT(x) (!!(x))
-
typedef u64 __rcu *tdp_ptep_t;

struct kvm_mmu_page {
--
2.19.1.6.gb485710b