From: Borislav Petkov <bp@alien8.de>
To: Michael Kelley <mikelley@microsoft.com>
Cc: hpa@zytor.com, kys@microsoft.com, haiyangz@microsoft.com,
wei.liu@kernel.org, decui@microsoft.com, luto@kernel.org,
peterz@infradead.org, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, lpieralisi@kernel.org,
robh@kernel.org, kw@linux.com, bhelgaas@google.com,
arnd@arndb.de, hch@infradead.org, m.szyprowski@samsung.com,
robin.murphy@arm.com, thomas.lendacky@amd.com,
brijesh.singh@amd.com, tglx@linutronix.de, mingo@redhat.com,
dave.hansen@linux.intel.com, Tianyu.Lan@microsoft.com,
kirill.shutemov@linux.intel.com,
sathyanarayanan.kuppuswamy@linux.intel.com, ak@linux.intel.com,
isaku.yamahata@intel.com, dan.j.williams@intel.com,
jane.chu@oracle.com, seanjc@google.com, tony.luck@intel.com,
x86@kernel.org, linux-kernel@vger.kernel.org,
linux-hyperv@vger.kernel.org, netdev@vger.kernel.org,
linux-pci@vger.kernel.org, linux-arch@vger.kernel.org,
iommu@lists.linux.dev
Subject: Re: [Patch v4 07/13] swiotlb: Remove bounce buffer remapping for Hyper-V
Date: Mon, 9 Jan 2023 19:05:27 +0100 [thread overview]
Message-ID: <Y7xXZ9CKijXo5XQS@zn.tnic> (raw)
In-Reply-To: <1669951831-4180-8-git-send-email-mikelley@microsoft.com>
On Thu, Dec 01, 2022 at 07:30:25PM -0800, Michael Kelley wrote:
> With changes to how Hyper-V guest VMs flip memory between private
> (encrypted) and shared (decrypted), creating a second kernel virtual
> mapping for shared memory is no longer necessary. Everything needed
> for the transition to shared is handled by set_memory_decrypted().
>
> As such, remove swiotlb_unencrypted_base and the associated
> code.
>
> Signed-off-by: Michael Kelley <mikelley@microsoft.com>
> Acked-by: Christoph Hellwig <hch@lst.de>
> ---
> arch/x86/kernel/cpu/mshyperv.c | 7 +------
> include/linux/swiotlb.h | 2 --
> kernel/dma/swiotlb.c | 45 +-----------------------------------------
> 3 files changed, 2 insertions(+), 52 deletions(-)
Patches removing crap are always nice:
Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2023-01-09 18:06 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-02 3:30 [Patch v4 00/13] Add PCI pass-thru support to Hyper-V Confidential VMs Michael Kelley
2022-12-02 3:30 ` [Patch v4 01/13] x86/ioapic: Gate decrypted mapping on cc_platform_has() attribute Michael Kelley
2022-12-06 19:22 ` Borislav Petkov
2022-12-06 19:54 ` Michael Kelley (LINUX)
2022-12-29 11:39 ` Borislav Petkov
2022-12-29 16:02 ` Michael Kelley (LINUX)
2022-12-06 19:27 ` Sathyanarayanan Kuppuswamy
2022-12-02 3:30 ` [Patch v4 02/13] x86/hyperv: Reorder code in prep for subsequent patch Michael Kelley
2022-12-02 3:30 ` [Patch v4 03/13] Drivers: hv: Explicitly request decrypted in vmap_pfn() calls Michael Kelley
2022-12-29 12:05 ` Borislav Petkov
2022-12-02 3:30 ` [Patch v4 04/13] x86/mm: Handle decryption/re-encryption of bss_decrypted consistently Michael Kelley
2022-12-29 12:17 ` Borislav Petkov
2022-12-29 16:25 ` Michael Kelley (LINUX)
2023-01-09 19:10 ` Borislav Petkov
2023-01-09 19:14 ` Michael Kelley (LINUX)
2022-12-29 16:54 ` Bjorn Helgaas
2022-12-29 17:12 ` Borislav Petkov
2022-12-02 3:30 ` [Patch v4 05/13] init: Call mem_encrypt_init() after Hyper-V hypercall init is done Michael Kelley
2022-12-06 19:37 ` Sathyanarayanan Kuppuswamy
2022-12-06 20:13 ` Michael Kelley (LINUX)
2022-12-06 20:30 ` Sathyanarayanan Kuppuswamy
2022-12-02 3:30 ` [Patch v4 06/13] x86/hyperv: Change vTOM handling to use standard coco mechanisms Michael Kelley
2023-01-09 16:38 ` Borislav Petkov
2023-01-09 17:37 ` Michael Kelley (LINUX)
2023-01-09 18:07 ` Borislav Petkov
2022-12-02 3:30 ` [Patch v4 07/13] swiotlb: Remove bounce buffer remapping for Hyper-V Michael Kelley
2023-01-09 18:05 ` Borislav Petkov [this message]
2022-12-02 3:30 ` [Patch v4 08/13] Drivers: hv: vmbus: Remove second mapping of VMBus monitor pages Michael Kelley
2022-12-02 3:30 ` [Patch v4 09/13] Drivers: hv: vmbus: Remove second way of mapping ring buffers Michael Kelley
2022-12-02 3:30 ` [Patch v4 10/13] hv_netvsc: Remove second mapping of send and recv buffers Michael Kelley
2022-12-02 3:30 ` [Patch v4 11/13] Drivers: hv: Don't remap addresses that are above shared_gpa_boundary Michael Kelley
2022-12-02 3:30 ` [Patch v4 12/13] PCI: hv: Add hypercalls to read/write MMIO space Michael Kelley
2022-12-02 3:30 ` [Patch v4 13/13] PCI: hv: Enable PCI pass-thru devices in Confidential VMs Michael Kelley
2023-01-09 18:47 ` [Patch v4 00/13] Add PCI pass-thru support to Hyper-V " Borislav Petkov
2023-01-09 19:35 ` Michael Kelley (LINUX)
2023-01-12 14:03 ` Wei Liu
2023-01-19 17:58 ` Dexuan Cui
2023-01-20 11:58 ` Borislav Petkov
2023-01-20 12:42 ` Wei Liu
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