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From: Joerg Roedel <joro@8bytes.org>
To: Xu Lu <luxu.kernel@bytedance.com>
Cc: tjeznach@rivosinc.com, will@kernel.org, lihangjing@bytedance.com,
	xieyongji@bytedance.com, guojinhui.liam@bytedance.com,
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND 0/2] riscv: iommu: Add shutdown callback for kexec
Date: Mon, 6 Jan 2025 12:39:34 +0100	[thread overview]
Message-ID: <Z3vA9go8BVbunBQZ@8bytes.org> (raw)
In-Reply-To: <20250103093220.38106-1-luxu.kernel@bytedance.com>

On Fri, Jan 03, 2025 at 05:32:18PM +0800, Xu Lu wrote:
> After kexec, the newly booted kernel can not initialize iommu driver
> successfully as no one resets iommu state before kexec.
> 
> This patch series supplies shutdown callback for iommu driver. The shutdown
> callback resets necessary registers so that newly booted kernel can pass
> riscv_iommu_init_check() after kexec.
> 
> Xu Lu (2):
>   iommu/riscv: Empty iommu queue before enabling it
>   iommu/riscv: Add shutdown function for iommu driver
> 
>  drivers/iommu/riscv/iommu-pci.c      |  8 ++++++++
>  drivers/iommu/riscv/iommu-platform.c |  6 ++++++
>  drivers/iommu/riscv/iommu.c          | 12 ++++++++++--
>  drivers/iommu/riscv/iommu.h          |  1 +
>  4 files changed, 25 insertions(+), 2 deletions(-)

Applied, thanks.

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WARNING: multiple messages have this Message-ID (diff)
From: Joerg Roedel <joro@8bytes.org>
To: Xu Lu <luxu.kernel@bytedance.com>
Cc: tjeznach@rivosinc.com, will@kernel.org, lihangjing@bytedance.com,
	xieyongji@bytedance.com, guojinhui.liam@bytedance.com,
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND 0/2] riscv: iommu: Add shutdown callback for kexec
Date: Mon, 6 Jan 2025 12:39:34 +0100	[thread overview]
Message-ID: <Z3vA9go8BVbunBQZ@8bytes.org> (raw)
In-Reply-To: <20250103093220.38106-1-luxu.kernel@bytedance.com>

On Fri, Jan 03, 2025 at 05:32:18PM +0800, Xu Lu wrote:
> After kexec, the newly booted kernel can not initialize iommu driver
> successfully as no one resets iommu state before kexec.
> 
> This patch series supplies shutdown callback for iommu driver. The shutdown
> callback resets necessary registers so that newly booted kernel can pass
> riscv_iommu_init_check() after kexec.
> 
> Xu Lu (2):
>   iommu/riscv: Empty iommu queue before enabling it
>   iommu/riscv: Add shutdown function for iommu driver
> 
>  drivers/iommu/riscv/iommu-pci.c      |  8 ++++++++
>  drivers/iommu/riscv/iommu-platform.c |  6 ++++++
>  drivers/iommu/riscv/iommu.c          | 12 ++++++++++--
>  drivers/iommu/riscv/iommu.h          |  1 +
>  4 files changed, 25 insertions(+), 2 deletions(-)

Applied, thanks.

  parent reply	other threads:[~2025-01-06 11:39 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-03  9:32 [PATCH RESEND 0/2] riscv: iommu: Add shutdown callback for kexec Xu Lu
2025-01-03  9:32 ` Xu Lu
2025-01-03  9:32 ` [PATCH RESEND 1/2] iommu/riscv: Empty iommu queue before enabling it Xu Lu
2025-01-03  9:32   ` Xu Lu
2025-01-03  9:32 ` [PATCH RESEND 2/2] iommu/riscv: Add shutdown function for iommu driver Xu Lu
2025-01-03  9:32   ` Xu Lu
2025-01-06 11:39 ` Joerg Roedel [this message]
2025-01-06 11:39   ` [PATCH RESEND 0/2] riscv: iommu: Add shutdown callback for kexec Joerg Roedel
2025-02-03 19:15 ` patchwork-bot+linux-riscv
2025-02-03 19:15   ` patchwork-bot+linux-riscv

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