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From: Paul Mackerras <paulus@ozlabs.org>
To: Bharata B Rao <bharata@linux.ibm.com>
Cc: linuxram@us.ibm.com, cclaudio@linux.ibm.com,
	kvm-ppc@vger.kernel.org, linux-mm@kvack.org, jglisse@redhat.com,
	aneesh.kumar@linux.vnet.ibm.com, paulus@au1.ibm.com,
	sukadev@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org,
	hch@lst.de
Subject: Re: [PATCH v10 0/8] KVM: PPC: Driver to manage pages of secure guest
Date: Wed, 6 Nov 2019 15:30:58 +1100
Message-ID: <20191106043058.GA12069@oak.ozlabs.ibm.com> (raw)
In-Reply-To: <20191104041800.24527-1-bharata@linux.ibm.com>

On Mon, Nov 04, 2019 at 09:47:52AM +0530, Bharata B Rao wrote:
> Hi,
> 
> This is the next version of the patchset that adds required support
> in the KVM hypervisor to run secure guests on PEF-enabled POWER platforms.
> 
> The major change in this version is about not using kvm.arch->rmap[]
> array to store device PFNs, thus not depending on the memslot availability
> to reach to the device PFN from the fault path. Instead of rmap[], we
> now have a different array which gets created and destroyed along with
> memslot creation and deletion. These arrays hang off from kvm.arch and
> are arragned in a simple linked list for now. We could move to some other
> data structure in future if walking of linked list becomes an overhead
> due to large number of memslots.

Thanks.  This is looking really close now.

> Other changes include:
> 
> - Rearranged/Merged/Cleaned up patches, removed all Acks/Reviewed-by since
>   all the patches have changed.
> - Added a new patch to support H_SVM_INIT_ABORT hcall (From Suka)
> - Added KSM unmerge support so that VMAs that have device PFNs don't
>   participate in KSM merging and eventually crash in KSM code.
> - Release device pages during unplug (Paul) and ensure that memory
>   hotplug and unplug works correctly.
> - Let kvm-hv module to load on PEF-disabled platforms (Ram) when
>   CONFIG_PPC_UV is enabled allowing regular non-secure guests
>   to still run.
> - Support guest reset when swithing to secure is in progress.
> - Check if page is already secure in kvmppc_send_page_to_uv() before
>   sending it to UV.
> - Fixed sentinal for header file kvm_book3s_uvmem.h (Jason)
> 
> Now, all the dependencies required by this patchset are in powerpc/next
> on which this patchset is based upon.

Can you tell me what patches that are in powerpc/next but not upstream
this depends on?

Paul.

  parent reply index

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-04  4:17 Bharata B Rao
2019-11-04  4:17 ` [PATCH v10 1/8] mm: ksm: Export ksm_madvise() Bharata B Rao
2019-11-06  4:33   ` Paul Mackerras
2019-11-06  6:45     ` Bharata B Rao
2019-11-07  5:45       ` Paul Mackerras
2019-11-15 14:10         ` Bharata B Rao
2019-11-04  4:17 ` [PATCH v10 2/8] KVM: PPC: Support for running secure guests Bharata B Rao
2019-11-06  4:34   ` Paul Mackerras
2019-11-04  4:17 ` [PATCH v10 3/8] KVM: PPC: Shared pages support for " Bharata B Rao
2019-11-06  4:52   ` Paul Mackerras
2019-11-06  8:22     ` Bharata B Rao
2019-11-06  8:29       ` Bharata B Rao
2019-11-04  4:17 ` [PATCH v10 4/8] KVM: PPC: Radix changes for secure guest Bharata B Rao
2019-11-06  5:58   ` Paul Mackerras
2019-11-06  8:36     ` Bharata B Rao
2019-11-04  4:17 ` [PATCH v10 5/8] KVM: PPC: Handle memory plug/unplug to secure VM Bharata B Rao
2019-11-11  4:25   ` Paul Mackerras
2019-11-04  4:17 ` [PATCH v10 6/8] KVM: PPC: Support reset of secure guest Bharata B Rao
2019-11-11  5:28   ` Paul Mackerras
2019-11-11  6:55     ` Bharata B Rao
2019-11-12  5:34   ` Paul Mackerras
2019-11-13 15:29     ` Bharata B Rao
2019-11-14  5:07       ` Paul Mackerras
2019-11-04  4:17 ` [PATCH v10 7/8] KVM: PPC: Implement H_SVM_INIT_ABORT hcall Bharata B Rao
2019-11-11  4:19   ` Paul Mackerras
2019-11-12  1:01     ` Ram Pai
2019-11-12  5:38       ` Paul Mackerras
2019-11-12  7:52         ` Ram Pai
2019-11-12 11:32           ` Paul Mackerras
2019-11-12 14:45             ` Ram Pai
2019-11-13  0:14               ` Paul Mackerras
2019-11-13  6:32                 ` Ram Pai
2019-11-13 21:18                   ` Paul Mackerras
2019-11-13 21:50                     ` Ram Pai
2019-11-14  5:08                       ` Paul Mackerras
2019-11-14  7:02                         ` Ram Pai
2019-11-04  4:18 ` [PATCH v10 8/8] KVM: PPC: Ultravisor: Add PPC_UV config option Bharata B Rao
2019-11-06  4:30 ` Paul Mackerras [this message]
2019-11-06  6:20   ` [PATCH v10 0/8] KVM: PPC: Driver to manage pages of secure guest Bharata B Rao

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