lkml.org 
[lkml]   [2021]   [Dec]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC PATCH 2/6] KVM: X86: Walk shadow page starting with shadow_root_level
Date
From: Lai Jiangshan <laijs@linux.alibaba.com>

Walking from the root page of the shadow page table should start with
the level of the shadow page table: shadow_root_level.

Also change a small defect in audit_mappings(), it is believed
that the current walking level is more valuable to print.

Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
---
arch/x86/kvm/mmu/mmu_audit.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/mmu/mmu_audit.c b/arch/x86/kvm/mmu/mmu_audit.c
index 9e7dcf999f08..6bbbf85b3e46 100644
--- a/arch/x86/kvm/mmu/mmu_audit.c
+++ b/arch/x86/kvm/mmu/mmu_audit.c
@@ -63,7 +63,7 @@ static void mmu_spte_walk(struct kvm_vcpu *vcpu, inspect_spte_fn fn)
hpa_t root = vcpu->arch.mmu->root_hpa;

sp = to_shadow_page(root);
- __mmu_spte_walk(vcpu, sp, fn, vcpu->arch.mmu->root_level);
+ __mmu_spte_walk(vcpu, sp, fn, vcpu->arch.mmu->shadow_root_level);
return;
}

@@ -119,8 +119,7 @@ static void audit_mappings(struct kvm_vcpu *vcpu, u64 *sptep, int level)
hpa = pfn << PAGE_SHIFT;
if ((*sptep & PT64_BASE_ADDR_MASK) != hpa)
audit_printk(vcpu->kvm, "levels %d pfn %llx hpa %llx "
- "ent %llxn", vcpu->arch.mmu->root_level, pfn,
- hpa, *sptep);
+ "ent %llxn", level, pfn, hpa, *sptep);
}

static void inspect_spte_has_rmap(struct kvm *kvm, u64 *sptep)
--
2.19.1.6.gb485710b
\
 
 \ /
  Last update: 2021-12-10 10:25    [W:0.238 / U:0.184 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site