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From: Keqian Zhu <zhukeqian1@huawei.com>
To: <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>, <kvm@vger.kernel.org>,
	<kvmarm@lists.cs.columbia.edu>, Marc Zyngier <maz@kernel.org>
Cc: <wanghaibin.wang@huawei.com>
Subject: [PATCH v4 0/2] kvm/arm64: Try stage2 block mapping for host device MMIO
Date: Thu, 15 Apr 2021 22:03:26 +0800
Message-ID: <20210415140328.24200-1-zhukeqian1@huawei.com> (raw)

Hi,

We have two pathes to build stage2 mapping for MMIO regions.

Create time's path and stage2 fault path.

Patch#1 removes the creation time's mapping of MMIO regions
Patch#2 tries stage2 block mapping for host device MMIO at fault path

Changelog:

v4:
 - use get_vma_page_shift() handle all cases. (Marc)
 - get rid of force_pte for device mapping. (Marc)

v3:
 - Do not need to check memslot boundary in device_rough_page_shift(). (Marc)

Thanks,
Keqian


Keqian Zhu (2):
  kvm/arm64: Remove the creation time's mapping of MMIO regions
  kvm/arm64: Try stage2 block mapping for host device MMIO

 arch/arm64/kvm/mmu.c | 99 ++++++++++++++++++++++++--------------------
 1 file changed, 54 insertions(+), 45 deletions(-)

-- 
2.19.1


             reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-15 14:03 Keqian Zhu [this message]
2021-04-15 14:03 ` [PATCH v4 1/2] kvm/arm64: Remove the creation time's mapping of MMIO regions Keqian Zhu
2021-04-21  6:38   ` Gavin Shan
2021-04-21  6:28     ` Keqian Zhu
2021-04-22  2:12       ` Gavin Shan
2021-04-22  7:41         ` Keqian Zhu
2021-04-23  1:35           ` Gavin Shan
2021-04-23  1:36             ` Keqian Zhu
2021-04-23  0:36   ` Gavin Shan
2021-04-15 14:03 ` [PATCH v4 2/2] kvm/arm64: Try stage2 block mapping for host device MMIO Keqian Zhu
2021-04-15 14:08   ` Keqian Zhu
2021-04-16 14:44     ` Marc Zyngier
2021-04-17  1:05       ` Keqian Zhu
2021-04-21  7:52   ` Gavin Shan
2021-04-21  6:36     ` Keqian Zhu
2021-04-22  2:25       ` Gavin Shan
2021-04-22  6:51         ` Marc Zyngier
2021-04-23  0:42           ` Gavin Shan
2021-04-23  0:37   ` Gavin Shan

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