From: Joerg Roedel <joerg.roedel@amd.com>
To: Avi Kivity <avi@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>
Cc: Alexander Graf <agraf@suse.de>, <joro@8bytes.org>,
<kvm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Joerg Roedel <joerg.roedel@amd.com>
Subject: [PATCH 24/27] KVM: SVM: Implement MMU helper functions for Nested Nested Paging
Date: Mon, 6 Sep 2010 17:56:03 +0200 [thread overview]
Message-ID: <1283788566-29186-25-git-send-email-joerg.roedel@amd.com> (raw)
In-Reply-To: <1283788566-29186-1-git-send-email-joerg.roedel@amd.com>
This patch adds the helper functions which will be used in
the mmu context for handling nested nested page faults.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
arch/x86/kvm/svm.c | 32 ++++++++++++++++++++++++++++++++
1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index a98ac52..6e72ba9 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -104,6 +104,8 @@ struct nested_state {
u32 intercept_exceptions;
u64 intercept;
+ /* Nested Paging related state */
+ u64 nested_cr3;
};
#define MSRPM_OFFSETS 16
@@ -1600,6 +1602,36 @@ static int vmmcall_interception(struct vcpu_svm *svm)
return 1;
}
+static unsigned long nested_svm_get_tdp_cr3(struct kvm_vcpu *vcpu)
+{
+ struct vcpu_svm *svm = to_svm(vcpu);
+
+ return svm->nested.nested_cr3;
+}
+
+static void nested_svm_set_tdp_cr3(struct kvm_vcpu *vcpu,
+ unsigned long root)
+{
+ struct vcpu_svm *svm = to_svm(vcpu);
+
+ svm->vmcb->control.nested_cr3 = root;
+ force_new_asid(vcpu);
+}
+
+static void nested_svm_inject_npf_exit(struct kvm_vcpu *vcpu,
+ unsigned long addr,
+ u32 error_code)
+{
+ struct vcpu_svm *svm = to_svm(vcpu);
+
+ svm->vmcb->control.exit_code = SVM_EXIT_NPF;
+ svm->vmcb->control.exit_code_hi = 0;
+ svm->vmcb->control.exit_info_1 = error_code;
+ svm->vmcb->control.exit_info_2 = addr;
+
+ nested_svm_vmexit(svm);
+}
+
static int nested_svm_check_permissions(struct vcpu_svm *svm)
{
if (!(svm->vcpu.arch.efer & EFER_SVME)
--
1.7.0.4
next prev parent reply other threads:[~2010-09-06 15:59 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-06 15:55 [PATCH 0/27] Nested Paging Virtualization for KVM v3 (now with fixed Cc-List) Joerg Roedel
2010-09-06 15:55 ` [PATCH 01/27] KVM: MMU: Check for root_level instead of long mode Joerg Roedel
2010-09-06 15:55 ` [PATCH 02/27] KVM: MMU: Make tdp_enabled a mmu-context parameter Joerg Roedel
2010-09-06 15:55 ` [PATCH 03/27] KVM: MMU: Make set_cr3 a function pointer in kvm_mmu Joerg Roedel
2010-09-06 15:55 ` [PATCH 04/27] KVM: X86: Introduce a tdp_set_cr3 function Joerg Roedel
2010-09-06 15:55 ` [PATCH 05/27] KVM: MMU: Introduce get_cr3 function pointer Joerg Roedel
2010-09-06 15:55 ` [PATCH 06/27] KVM: MMU: Introduce inject_page_fault " Joerg Roedel
2010-09-06 15:55 ` [PATCH 07/27] KVM: MMU: Introduce kvm_init_shadow_mmu helper function Joerg Roedel
2010-09-06 15:55 ` [PATCH 08/27] KVM: MMU: Let is_rsvd_bits_set take mmu context instead of vcpu Joerg Roedel
2010-09-06 15:55 ` [PATCH 09/27] KVM: MMU: Introduce generic walk_addr function Joerg Roedel
2010-09-06 15:55 ` [PATCH 10/27] KVM: MMU: Add infrastructure for two-level page walker Joerg Roedel
2010-09-06 18:05 ` Avi Kivity
2010-09-08 9:20 ` Roedel, Joerg
2010-09-06 15:55 ` [PATCH 11/27] KVM: X86: Introduce pointer to mmu context used for gva_to_gpa Joerg Roedel
2010-09-06 15:55 ` [PATCH 12/27] KVM: MMU: Implement nested gva_to_gpa functions Joerg Roedel
2010-09-06 15:55 ` [PATCH 13/27] KVM: X86: Add kvm_read_guest_page_tdp function Joerg Roedel
2010-09-06 15:55 ` [PATCH 14/27] KVM: MMU: Make walk_addr_generic capable for two-level walking Joerg Roedel
2010-09-07 17:48 ` Marcelo Tosatti
2010-09-08 9:12 ` Roedel, Joerg
2010-09-06 15:55 ` [PATCH 15/27] KVM: MMU: Introduce kvm_read_guest_page_x86() Joerg Roedel
2010-09-06 15:55 ` [PATCH 16/27] KVM: MMU: Introduce init_kvm_nested_mmu() Joerg Roedel
2010-09-06 15:55 ` [PATCH 17/27] KVM: MMU: Track page fault data in struct vcpu Joerg Roedel
2010-09-06 18:17 ` Avi Kivity
2010-09-06 15:55 ` [PATCH 18/27] KVM: MMU: Propagate the right fault back to the guest after gva_to_gpa Joerg Roedel
2010-09-06 15:55 ` [PATCH 19/27] KVM: X86: Propagate fetch faults Joerg Roedel
2010-09-07 18:43 ` Marcelo Tosatti
2010-09-08 9:18 ` Roedel, Joerg
2010-09-06 15:55 ` [PATCH 20/27] KVM: MMU: Add kvm_mmu parameter to load_pdptrs function Joerg Roedel
2010-09-06 15:56 ` [PATCH 21/27] KVM: MMU: Introduce kvm_pdptr_read_mmu Joerg Roedel
2010-09-06 15:56 ` [PATCH 22/27] KVM: MMU: Refactor mmu_alloc_roots function Joerg Roedel
2010-09-07 20:39 ` Marcelo Tosatti
2010-09-08 7:16 ` Avi Kivity
2010-09-08 9:16 ` Roedel, Joerg
2010-09-06 15:56 ` [PATCH 23/27] KVM: MMU: Allow long mode shadows for legacy page tables Joerg Roedel
2010-09-06 15:56 ` Joerg Roedel [this message]
2010-09-06 15:56 ` [PATCH 25/27] KVM: SVM: Initialize Nested Nested MMU context on VMRUN Joerg Roedel
2010-09-06 15:56 ` [PATCH 26/27] KVM: SVM: Expect two more candiates for exit_int_info Joerg Roedel
2010-09-06 15:56 ` [PATCH 27/27] KVM: SVM: Report Nested Paging support to userspace Joerg Roedel
2010-09-06 18:37 ` [PATCH 0/27] Nested Paging Virtualization for KVM v3 (now with fixed Cc-List) Avi Kivity
2010-09-07 16:35 ` Roedel, Joerg
-- strict thread matches above, loose matches on Subject: below --
2010-09-06 15:01 [PATCH 0/27] Nested Paging Virtualization for KVM v3 Joerg Roedel
2010-09-06 15:01 ` [PATCH 24/27] KVM: SVM: Implement MMU helper functions for Nested Nested Paging Joerg Roedel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1283788566-29186-25-git-send-email-joerg.roedel@amd.com \
--to=joerg.roedel@amd.com \
--cc=agraf@suse.de \
--cc=avi@redhat.com \
--cc=joro@8bytes.org \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mtosatti@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®