From: Wei Huang <wei.huang2@amd.com>
To: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, pbonzini@redhat.com,
seanjc@google.com, vkuznets@redhat.com, wanpengli@tencent.com,
jmattson@google.com, joro@8bytes.org, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com
Subject: [PATCH v2 0/3] SVM 5-level page table support
Date: Sun, 8 Aug 2021 14:26:55 -0500 [thread overview]
Message-ID: <20210808192658.2923641-1-wei.huang2@amd.com> (raw)
This patch set adds 5-level page table support for AMD SVM. When the
5-level page table is enabled on host OS, the nested page table for guest
VMs will use the same format as host OS (i.e. 5-level NPT). These patches
were tested with various combination of different settings and test cases
(nested/regular VMs, AMD64/i686 kernels, kvm-unit-tests, etc.)
v1->v2:
* Remove v1's arch-specific get_tdp_level() and add a new parameter,
tdp_forced_root_level, to allow forced TDP level (Sean)
* Add additional comment on tdp_root table chaining trick and change the
PML root table allocation code (Sean)
* Revise Patch 1's commit msg (Sean and Jim)
Thanks,
-Wei
Wei Huang (3):
KVM: x86: Allow CPU to force vendor-specific TDP level
KVM: x86: Handle the case of 5-level shadow page table
KVM: SVM: Add 5-level page table support for SVM
arch/x86/include/asm/kvm_host.h | 6 ++--
arch/x86/kvm/mmu/mmu.c | 58 ++++++++++++++++++++++-----------
arch/x86/kvm/svm/svm.c | 13 ++++----
arch/x86/kvm/vmx/vmx.c | 3 +-
4 files changed, 50 insertions(+), 30 deletions(-)
--
2.31.1
next reply other threads:[~2021-08-08 19:27 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-08 19:26 Wei Huang [this message]
2021-08-08 19:26 ` [PATCH v2 1/3] KVM: x86: Allow CPU to force vendor-specific TDP level Wei Huang
2021-08-09 3:58 ` Yu Zhang
2021-08-09 4:11 ` Wei Huang
2021-08-09 4:27 ` Yu Zhang
2021-08-09 4:33 ` Wei Huang
2021-08-09 6:42 ` Yu Zhang
2021-08-09 15:30 ` Sean Christopherson
2021-08-09 21:49 ` Jim Mattson
2021-08-10 9:23 ` Paolo Bonzini
2021-08-10 7:40 ` Yu Zhang
2021-08-10 9:25 ` Paolo Bonzini
2021-08-10 11:00 ` Yu Zhang
2021-08-10 12:47 ` Paolo Bonzini
2021-08-10 14:37 ` Yu Zhang
2021-08-08 19:26 ` [PATCH v2 2/3] KVM: x86: Handle the case of 5-level shadow page table Wei Huang
2021-08-09 15:17 ` Sean Christopherson
2021-08-09 17:03 ` Wei Huang
2021-08-08 19:26 ` [PATCH v2 3/3] KVM: SVM: Add 5-level page table support for SVM Wei Huang
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