lkml.org 
[lkml]   [2012]   [Apr]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH v2 01/16] KVM: MMU: cleanup __direct_map
Use link_shadow_page to link the sp to the spte in __direct_map

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
---
arch/x86/kvm/mmu.c | 12 ++++--------
1 files changed, 4 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 29ad6f9..151fcddc 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1850,9 +1850,9 @@ static void link_shadow_page(u64 *sptep, struct kvm_mmu_page *sp)
{
u64 spte;

- spte = __pa(sp->spt)
- | PT_PRESENT_MASK | PT_ACCESSED_MASK
- | PT_WRITABLE_MASK | PT_USER_MASK;
+ spte = __pa(sp->spt) | PT_PRESENT_MASK | PT_WRITABLE_MASK |
+ shadow_user_mask | shadow_x_mask | shadow_accessed_mask;
+
mmu_spte_set(sptep, spte);
}

@@ -2541,11 +2541,7 @@ static int __direct_map(struct kvm_vcpu *vcpu, gpa_t v, int write,
return -ENOMEM;
}

- mmu_spte_set(iterator.sptep,
- __pa(sp->spt)
- | PT_PRESENT_MASK | PT_WRITABLE_MASK
- | shadow_user_mask | shadow_x_mask
- | shadow_accessed_mask);
+ link_shadow_page(iterator.sptep, sp);
}
}
return emulate;
--
1.7.7.6


\
 
 \ /
  Last update: 2012-04-13 12:13    [from the cache]
©2003-2011 Jasper Spaans