linux-kernel - [PATCH v3 0/2] kvm/arm64: Try stage2 block mapping for host device MMIO

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Message-ID: <20210414065109.8616-1-zhukeqian1@huawei.com>
Date:   Wed, 14 Apr 2021 14:51:07 +0800
From:   Keqian Zhu <zhukeqian1@...wei.com>
To:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <kvm@...r.kernel.org>,
        <kvmarm@...ts.cs.columbia.edu>, Marc Zyngier <maz@...nel.org>
CC:     <wanghaibin.wang@...wei.com>
Subject: [PATCH v3 0/2] kvm/arm64: Try stage2 block mapping for host device MMIO

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:

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 | 75 +++++++++++++++++++++-----------------------
 1 file changed, 36 insertions(+), 39 deletions(-)

-- 
2.19.1