From: Xiao Guangrong <guangrong.xiao@linux.intel.com>
To: pbonzini@redhat.com
Cc: gleb@kernel.org, mtosatti@redhat.com, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, ru.pchel@gmail.com,
Xiao Guangrong <guangrong.xiao@linux.intel.com>
Subject: [PATCH v2 2/9] KVM: MMU: move FNAME(is_rsvd_bits_set) to mmu.c
Date: Wed, 5 Aug 2015 12:04:20 +0800 [thread overview]
Message-ID: <1438747467-25425-3-git-send-email-guangrong.xiao@linux.intel.com> (raw)
In-Reply-To: <1438747467-25425-1-git-send-email-guangrong.xiao@linux.intel.com>
FNAME(is_rsvd_bits_set) does not depend on guest mmu mode, move it
to mmu.c to stop being compiled multiple times
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
---
arch/x86/kvm/mmu.c | 8 ++++++++
arch/x86/kvm/paging_tmpl.h | 13 ++-----------
2 files changed, 10 insertions(+), 11 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index f432e9b..3f1c403 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3546,6 +3546,14 @@ static inline bool is_last_gpte(struct kvm_mmu *mmu, unsigned level, unsigned gp
return mmu->last_pte_bitmap & (1 << index);
}
+static bool is_rsvd_bits_set(struct kvm_mmu *mmu, u64 gpte, int level)
+{
+ int bit7 = (gpte >> 7) & 1, low6 = gpte & 0x3f;
+
+ return (gpte & mmu->rsvd_bits_mask[bit7][level-1]) |
+ ((mmu->bad_mt_xwr & (1ull << low6)) != 0);
+}
+
#define PTTYPE_EPT 18 /* arbitrary */
#define PTTYPE PTTYPE_EPT
#include "paging_tmpl.h"
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 0f67d7e..736e6ab 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -128,14 +128,6 @@ static inline void FNAME(protect_clean_gpte)(unsigned *access, unsigned gpte)
*access &= mask;
}
-static bool FNAME(is_rsvd_bits_set)(struct kvm_mmu *mmu, u64 gpte, int level)
-{
- int bit7 = (gpte >> 7) & 1, low6 = gpte & 0x3f;
-
- return (gpte & mmu->rsvd_bits_mask[bit7][level-1]) |
- ((mmu->bad_mt_xwr & (1ull << low6)) != 0);
-}
-
static inline int FNAME(is_present_gpte)(unsigned long pte)
{
#if PTTYPE != PTTYPE_EPT
@@ -172,7 +164,7 @@ static bool FNAME(prefetch_invalid_gpte)(struct kvm_vcpu *vcpu,
struct kvm_mmu_page *sp, u64 *spte,
u64 gpte)
{
- if (FNAME(is_rsvd_bits_set)(&vcpu->arch.mmu, gpte, PT_PAGE_TABLE_LEVEL))
+ if (is_rsvd_bits_set(&vcpu->arch.mmu, gpte, PT_PAGE_TABLE_LEVEL))
goto no_present;
if (!FNAME(is_present_gpte)(gpte))
@@ -353,8 +345,7 @@ retry_walk:
if (unlikely(!FNAME(is_present_gpte)(pte)))
goto error;
- if (unlikely(FNAME(is_rsvd_bits_set)(mmu, pte,
- walker->level))) {
+ if (unlikely(is_rsvd_bits_set(mmu, pte, walker->level))) {
errcode |= PFERR_RSVD_MASK | PFERR_PRESENT_MASK;
goto error;
}
--
2.1.0
next prev parent reply other threads:[~2015-08-05 4:13 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-05 4:04 [PATCH v2 0/9] KVM: MMU: fix and improve validation of mmio page fault Xiao Guangrong
2015-08-05 4:04 ` [PATCH v2 1/9] KVM: MMU: fix " Xiao Guangrong
2015-08-05 4:04 ` Xiao Guangrong [this message]
2015-08-05 4:04 ` [PATCH v2 3/9] KVM: MMU: introduce rsvd_bits_validate Xiao Guangrong
2015-08-05 4:04 ` [PATCH v2 4/9] KVM: MMU: split reset_rsvds_bits_mask Xiao Guangrong
2015-08-05 4:04 ` [PATCH v2 5/9] KVM: MMU: split reset_rsvds_bits_mask_ept Xiao Guangrong
2015-08-05 4:04 ` [PATCH v2 6/9] KVM: MMU: introduce the framework to check zero bits on sptes Xiao Guangrong
2015-08-05 4:04 ` [PATCH v2 7/9] KVM: MMU: introduce is_shadow_zero_bits_set() Xiao Guangrong
2015-08-05 4:04 ` [PATCH v2 8/9] KVM: MMU: fully check zero bits for sptes Xiao Guangrong
2015-08-05 10:12 ` Paolo Bonzini
2015-08-06 2:53 ` Xiao Guangrong
2015-08-05 4:04 ` [PATCH v2 9/9] KVM: VMX: drop ept misconfig check Xiao Guangrong
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