The function does not depend on guest mmu mode, move it out from
paging_tmpl.h
Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx>
---
arch/x86/kvm/mmu.c | 36 ++++++++++++++++++++++++++++--------
arch/x86/kvm/paging_tmpl.h | 24 ++----------------------
2 files changed, 30 insertions(+), 30 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index bc1cda4..a455c0d 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2503,6 +2503,14 @@ static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)
mmu_free_roots(vcpu);
}
+static bool is_rsvd_bits_set(struct kvm_mmu *mmu, u64 gpte, int level)
+{
+ int bit7;
+
+ bit7 = (gpte >> 7) & 1;
+ return (gpte & mmu->rsvd_bits_mask[bit7][level-1]) != 0;
+}
+
static pfn_t pte_prefetch_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn,
bool no_dirty_log)
{
@@ -2515,6 +2523,26 @@ static pfn_t pte_prefetch_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn,
return gfn_to_pfn_memslot_atomic(slot, gfn);
}
+static bool prefetch_invalid_gpte(struct kvm_vcpu *vcpu,
+ struct kvm_mmu_page *sp, u64 *spte,
+ u64 gpte)
+{
+ if (is_rsvd_bits_set(&vcpu->arch.mmu, gpte, PT_PAGE_TABLE_LEVEL))
+ goto no_present;
+
+ if (!is_present_gpte(gpte))
+ goto no_present;
+
+ if (!(gpte & PT_ACCESSED_MASK))
+ goto no_present;
+
+ return false;
+
+no_present:
+ drop_spte(vcpu->kvm, spte);
+ return true;
+}
+
static int direct_pte_prefetch_many(struct kvm_vcpu *vcpu,
struct kvm_mmu_page *sp,
u64 *start, u64 *end)
@@ -3396,14 +3424,6 @@ static void paging_free(struct kvm_vcpu *vcpu)
nonpaging_free(vcpu);
}
-static bool is_rsvd_bits_set(struct kvm_mmu *mmu, u64 gpte, int level)
-{
- int bit7;
-
- bit7 = (gpte >> 7) & 1;
- return (gpte & mmu->rsvd_bits_mask[bit7][level-1]) != 0;
-}
-
static bool sync_mmio_spte(u64 *sptep, gfn_t gfn, unsigned access,
int *nr_present)
{
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 5b1af72..298e5c2 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -336,26 +336,6 @@ static int FNAME(walk_addr_nested)(struct guest_walker *walker,
addr, access);
}
-static bool FNAME(prefetch_invalid_gpte)(struct kvm_vcpu *vcpu,
- struct kvm_mmu_page *sp, u64 *spte,
- pt_element_t gpte)
-{
- if (is_rsvd_bits_set(&vcpu->arch.mmu, gpte, PT_PAGE_TABLE_LEVEL))
- goto no_present;
-
- if (!is_present_gpte(gpte))
- goto no_present;
-
- if (!(gpte & PT_ACCESSED_MASK))
- goto no_present;
-
- return false;
-
-no_present:
- drop_spte(vcpu->kvm, spte);
- return true;
-}
-
static bool
FNAME(prefetch_gpte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
u64 *spte, pt_element_t gpte, bool no_dirty_log)
@@ -364,7 +344,7 @@ FNAME(prefetch_gpte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
gfn_t gfn;
pfn_t pfn;
- if (FNAME(prefetch_invalid_gpte)(vcpu, sp, spte, gpte))
+ if (prefetch_invalid_gpte(vcpu, sp, spte, gpte))
return false;
pgprintk("%s: gpte %llx spte %p\n", __func__, (u64)gpte, spte);
@@ -778,7 +758,7 @@ static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
sizeof(pt_element_t)))
return -EINVAL;
- if (FNAME(prefetch_invalid_gpte)(vcpu, sp, &sp->spt[i], gpte)) {
+ if (prefetch_invalid_gpte(vcpu, sp, &sp->spt[i], gpte)) {
vcpu->kvm->tlbs_dirty++;
continue;
}
--
1.7.7.6
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