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From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: kvm@vger.kernel.org
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
	"Radim Krčmář" <rkrcmar@redhat.com>,
	linux-kernel@vger.kernel.org, "Jim Mattson" <jmattson@google.com>,
	"Liran Alon" <liran.alon@oracle.com>
Subject: [PATCH 2/9] x86/kvm/mmu.c: set get_pdptr hook in kvm_init_shadow_ept_mmu()
Date: Thu,  2 Aug 2018 12:01:25 +0200	[thread overview]
Message-ID: <20180802100132.5249-3-vkuznets@redhat.com> (raw)
In-Reply-To: <20180802100132.5249-1-vkuznets@redhat.com>

kvm_init_shadow_ept_mmu() doesn't set get_pdptr() hook and is this
not a problem just because MMU context is already initialized and this
hook points to kvm_pdptr_read(). As we're intended to use a dedicated
MMU for shadow EPT MMU set this hook explicitly.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/mmu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 0a40afd71d74..b013aec73d46 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -4816,6 +4816,8 @@ void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly,
 	context->root_level = PT64_ROOT_4LEVEL;
 	context->direct_map = false;
 	context->base_role.word = root_page_role.word & mmu_base_role_mask.word;
+	context->get_pdptr = kvm_pdptr_read;
+
 	update_permission_bitmask(vcpu, context, true);
 	update_pkru_bitmask(vcpu, context, true);
 	update_last_nonleaf_level(vcpu, context);
-- 
2.14.4

  parent reply	other threads:[~2018-08-02 10:01 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-02 10:01 [PATCH 0/9] x86/kvm/nVMX: optimize MMU switch between L1 and L2 Vitaly Kuznetsov
2018-08-02 10:01 ` [PATCH 1/9] x86/kvm/mmu: make vcpu->mmu a pointer to the current MMU Vitaly Kuznetsov
2018-08-02 10:01 ` Vitaly Kuznetsov [this message]
2018-08-02 10:01 ` [PATCH 3/9] x86/kvm/mmu.c: add kvm_mmu parameter to kvm_mmu_free_roots() Vitaly Kuznetsov
2018-08-02 10:01 ` [PATCH 4/9] x86/kvm/mmu: introduce guest_mmu Vitaly Kuznetsov
2018-08-02 10:01 ` [PATCH 5/9] x86/kvm/mmu: get rid of redundant kvm_mmu_setup() Vitaly Kuznetsov
2018-08-02 10:01 ` [PATCH 6/9] x86/kvm/mmu: make space for source data caching in struct kvm_mmu Vitaly Kuznetsov
2018-09-19 15:54   ` Sean Christopherson
2018-09-20  8:12     ` Vitaly Kuznetsov
2018-08-02 10:01 ` [PATCH 7/9] x86/kvm/nVMX: introduce scache for kvm_init_shadow_ept_mmu Vitaly Kuznetsov
2018-08-02 10:01 ` [PATCH 8/9] x86/kvm/mmu: check if tdp/shadow MMU reconfiguration is needed Vitaly Kuznetsov
2018-08-02 10:01 ` [PATCH 9/9] x86/kvm/mmu: check if MMU reconfiguration is needed in init_kvm_nested_mmu() Vitaly Kuznetsov
2018-08-02 10:27 ` [PATCH 0/9] x86/kvm/nVMX: optimize MMU switch between L1 and L2 Paolo Bonzini

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