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Message-ID: <20230811170054.GB3593414-robh@kernel.org>
Date: Fri, 11 Aug 2023 11:00:54 -0600
From: Rob Herring <robh@...nel.org>
To: Yi-De Wu <yi-de.wu@...iatek.com>
Cc: Yingshiuan Pan <yingshiuan.pan@...iatek.com>,
Ze-Yu Wang <ze-yu.wang@...iatek.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Jonathan Corbet <corbet@....net>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-doc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-arch@...r.kernel.org, linux-mediatek@...ts.infradead.org,
David Bradil <dbrazdil@...gle.com>,
Trilok Soni <quic_tsoni@...cinc.com>,
Ivan Tseng <ivan.tseng@...iatek.com>,
Jade Shih <jades.shih@...iatek.com>,
My Chuang <my.chuang@...iatek.com>,
Shawn Hsiao <shawn.hsiao@...iatek.com>,
PeiLun Suei <peilun.suei@...iatek.com>,
Liju Chen <liju-clr.chen@...iatek.com>,
Willix Yeh <chi-shen.yeh@...iatek.com>
Subject: Re: [PATCH v5 04/12] virt: geniezone: Add vcpu support
On Thu, Jul 27, 2023 at 03:59:57PM +0800, Yi-De Wu wrote:
> From: "Yingshiuan Pan" <yingshiuan.pan@...iatek.com>
>
> VMM use this interface to create vcpu instance which is a fd, and this
> fd will be for any vcpu operations, such as setting vcpu registers and
> accepts the most important ioctl GZVM_VCPU_RUN which requests GenieZone
> hypervisor to do context switch to execute VM's vcpu context.
>
> Signed-off-by: Yingshiuan Pan <yingshiuan.pan@...iatek.com>
> Signed-off-by: Jerry Wang <ze-yu.wang@...iatek.com>
> Signed-off-by: Liju Chen <liju-clr.chen@...iatek.com>
> Signed-off-by: Yi-De Wu <yi-de.wu@...iatek.com>
> ---
> arch/arm64/geniezone/Makefile | 2 +-
> arch/arm64/geniezone/gzvm_arch_common.h | 20 ++
> arch/arm64/geniezone/vcpu.c | 88 +++++++++
> arch/arm64/geniezone/vm.c | 11 ++
> arch/arm64/include/uapi/asm/gzvm_arch.h | 30 +++
I'm almost certain that the arm64 maintainers will reject putting this
here. What is the purpose of the split with drivers/virt/? Do you plan
to support another arch in the near future?
Yes, there's KVM stuff in arch/arm64, but that is multi-arch.
> drivers/virt/geniezone/Makefile | 3 +-
> drivers/virt/geniezone/gzvm_vcpu.c | 250 ++++++++++++++++++++++++
> drivers/virt/geniezone/gzvm_vm.c | 5 +
> include/linux/gzvm_drv.h | 21 ++
> include/uapi/linux/gzvm.h | 136 +++++++++++++
> 10 files changed, 564 insertions(+), 2 deletions(-)
> create mode 100644 arch/arm64/geniezone/vcpu.c
> create mode 100644 drivers/virt/geniezone/gzvm_vcpu.c
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