From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: vkuznets@redhat.com
Subject: [PATCH 2/4] x86/kvm/mmu.c: set get_pdptr hook in kvm_init_shadow_ept_mmu()
Date: Fri, 27 Jul 2018 18:56:39 +0200 [thread overview]
Message-ID: <1532710601-45449-3-git-send-email-pbonzini@redhat.com> (raw)
In-Reply-To: <1532710601-45449-1-git-send-email-pbonzini@redhat.com>
From: Vitaly Kuznetsov <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);
--
1.8.3.1
next prev parent reply other threads:[~2018-07-27 16:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-27 16:56 [PATCH rebase/RFC 0/4] x86/kvm/nVMX: optimize MMU switch between L1 and L2 Paolo Bonzini
2018-07-27 16:56 ` [PATCH 1/4] x86/kvm/mmu: make vcpu->mmu a pointer to the current MMU Paolo Bonzini
2018-07-27 16:56 ` Paolo Bonzini [this message]
2018-07-27 16:56 ` [PATCH 3/4] x86/kvm/mmu.c: add kvm_mmu parameter to kvm_mmu_free_roots() Paolo Bonzini
2018-07-27 16:56 ` [PATCH 4/4] x86/kvm/mmu: introduce guest_mmu Paolo Bonzini
2018-07-31 15:58 ` [PATCH rebase/RFC 0/4] x86/kvm/nVMX: optimize MMU switch between L1 and L2 Vitaly Kuznetsov
2018-07-31 16:52 ` Paolo Bonzini
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