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From: Paolo Bonzini <pbonzini@redhat.com>
To: Wei Huang <wei.huang2@amd.com>, kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, vkuznets@redhat.com,
	seanjc@google.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: Re: [PATCH v3 0/3] SVM 5-level page table support
Date: Thu, 19 Aug 2021 18:43:45 +0200	[thread overview]
Message-ID: <46a54a13-b934-263a-9539-6c922ceb70d3@redhat.com> (raw)
In-Reply-To: <20210818165549.3771014-1-wei.huang2@amd.com>

On 18/08/21 18:55, Wei Huang wrote:
> 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.)
> 
> v2->v3:
>   * Change the way of building root_hpa by following the existing flow (Sean)
> 
> 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          | 56 ++++++++++++++++++++++-----------
>   arch/x86/kvm/svm/svm.c          | 13 ++++----
>   arch/x86/kvm/vmx/vmx.c          |  3 +-
>   4 files changed, 49 insertions(+), 29 deletions(-)
> 

Queued, thanks, with NULL initializations according to Tom's review.

Paolo


  parent reply	other threads:[~2021-08-19 16:43 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-18 16:55 Wei Huang
2021-08-18 16:55 ` [PATCH v3 1/3] KVM: x86: Allow CPU to force vendor-specific TDP level Wei Huang
2021-08-18 16:55 ` [PATCH v3 2/3] KVM: x86: Handle the case of 5-level shadow page table Wei Huang
2021-08-18 17:15   ` Sean Christopherson
2021-08-19 16:36     ` Paolo Bonzini
2021-08-18 18:00   ` Tom Lendacky
2021-08-18 16:55 ` [PATCH v3 3/3] KVM: SVM: Add 5-level page table support for SVM Wei Huang
2021-08-18 17:32   ` Sean Christopherson
2021-08-19 16:38     ` Paolo Bonzini
2021-08-19 16:43 ` Paolo Bonzini [this message]
2021-08-23  9:20   ` [PATCH v3 0/3] SVM 5-level page table support Maxim Levitsky
2021-08-23 15:15     ` Wei Huang
2021-08-23 16:10       ` Sean Christopherson
2021-08-23 18:10         ` Maxim Levitsky
2021-08-23 18:06       ` Maxim Levitsky

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