From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
To: Avi Kivity <avi@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
LKML <linux-kernel@vger.kernel.org>, KVM <kvm@vger.kernel.org>
Subject: [PATCH v4 06/18] KVM: MMU: cleanup for FNAME(fetch)
Date: Tue, 12 Jul 2011 03:25:19 +0800 [thread overview]
Message-ID: <4E1B4E1F.5030809@cn.fujitsu.com> (raw)
In-Reply-To: <4E1B4CF8.605@cn.fujitsu.com>
gw->pte_access is the final access permission, since it is unified with
gw->pt_access when we walked guest page table:
FNAME(walk_addr_generic):
pte_access = pt_access & FNAME(gpte_access)(vcpu, pte, true);
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
---
arch/x86/kvm/paging_tmpl.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index c9fe97b..5c2aa40 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -479,7 +479,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
if (!is_present_gpte(gw->ptes[gw->level - 1]))
return NULL;
- direct_access = gw->pt_access & gw->pte_access;
+ direct_access = gw->pte_access;
top_level = vcpu->arch.mmu.root_level;
if (top_level == PT32E_ROOT_LEVEL)
@@ -537,7 +537,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
link_shadow_page(it.sptep, sp);
}
- mmu_set_spte(vcpu, it.sptep, access, gw->pte_access & access,
+ mmu_set_spte(vcpu, it.sptep, access, gw->pte_access,
user_fault, write_fault, ptwrite, it.level,
gw->gfn, pfn, prefault, map_writable);
FNAME(pte_prefetch)(vcpu, gw, it.sptep);
--
1.7.5.4
next prev parent reply other threads:[~2011-07-11 19:23 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-11 19:20 [PATCH v4 00/18] KVM: optimize for MMIO handled Xiao Guangrong
2011-07-11 19:21 ` [PATCH v4 01/18] KVM: MMU: fix walking shadow page table Xiao Guangrong
2011-07-11 19:22 ` [PATCH v4 02/18] KVM: MMU: do not update slot bitmap if spte is nonpresent Xiao Guangrong
2011-07-11 19:22 ` [PATCH v4 03/18] KVM: x86: introduce vcpu_mmio_gva_to_gpa to cleanup the code Xiao Guangrong
2011-07-11 19:23 ` [PATCH v4 04/18] KVM: MMU: cache mmio info on page fault path Xiao Guangrong
2011-07-11 19:24 ` [PATCH v4 05/18] KVM: MMU: optimize to handle dirty bit Xiao Guangrong
2011-07-11 19:25 ` Xiao Guangrong [this message]
2011-07-11 19:25 ` [PATCH v4 07/18] KVM: MMU: rename 'pt_write' to 'emulate' Xiao Guangrong
2011-07-11 19:26 ` [PATCH v4 08/18] KVM: MMU: count used shadow pages on prepareing path Xiao Guangrong
2011-07-11 19:27 ` [PATCH v4 09/18] KVM: MMU: split kvm_mmu_free_page Xiao Guangrong
2011-07-11 19:28 ` [PATCH v4 10/18] KVM: MMU: remove bypass_guest_pf Xiao Guangrong
2011-07-11 19:28 ` [PATCH v4 11/18] KVM: MMU: filter out the mmio pfn from the fault pfn Xiao Guangrong
2011-07-11 19:29 ` [PATCH v4 12/18] KVM: MMU: abstract some functions to handle " Xiao Guangrong
2011-07-11 19:30 ` [PATCH v4 13/18] KVM: MMU: introduce the rules to modify shadow page table Xiao Guangrong
2011-07-11 19:31 ` [PATCH v4 14/18] KVM: MMU: do not need atomicly to set/clear spte Xiao Guangrong
2011-07-11 19:32 ` [PATCH v4 15/18] KVM: MMU: lockless walking shadow page table Xiao Guangrong
2011-07-11 19:32 ` [PATCH v4 16/18] KVM: MMU: reorganize struct kvm_shadow_walk_iterator Xiao Guangrong
2011-07-11 19:33 ` [PATCH v4 17/18] KVM: MMU: mmio page fault support Xiao Guangrong
2011-07-12 20:00 ` [PATCH] KVM: x86: Apply required parentheses in __check_direct_spte_mmio_pf Jan Kiszka
2011-07-13 13:25 ` Avi Kivity
2011-07-11 19:34 ` [PATCH v4 18/18] KVM: MMU: trace mmio page fault Xiao Guangrong
2011-07-12 8:39 ` [PATCH v4 00/18] KVM: optimize for MMIO handled Avi Kivity
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