Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range()

[PATCH v5 00/16] Add TDX Guest Support (shared-mm support) · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
[PATCH v5 01/16] x86/mm: Move force_dma_unencrypted() to common code · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
Re: [PATCH v5 01/16] x86/mm: Move force_dma_unencrypted() to common code · Tom Lendacky <thomas.lendacky@amd.com> · 2021-10-20
Re: [PATCH v5 01/16] x86/mm: Move force_dma_unencrypted() to common code · Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-20
[PATCH v5 02/16] x86/tdx: Get TD execution environment information via TDINFO · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
[PATCH v5 03/16] x86/tdx: Exclude Shared bit from physical_mask · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
Re: [PATCH v5 03/16] x86/tdx: Exclude Shared bit from physical_mask · Sean Christopherson <seanjc@google.com> · 2021-11-05
Re: [PATCH v5 03/16] x86/tdx: Exclude Shared bit from physical_mask · Kirill A. Shutemov <hidden> · 2021-11-08
[PATCH v5 04/16] x86/tdx: Make pages shared in ioremap() · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
Re: [PATCH v5 04/16] x86/tdx: Make pages shared in ioremap() · Tom Lendacky <thomas.lendacky@amd.com> · 2021-10-20
Re: [PATCH v5 04/16] x86/tdx: Make pages shared in ioremap() · Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-20
[PATCH v5 05/16] x86/tdx: Add helper to do MapGPA hypercall · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
[PATCH v5 06/16] x86/tdx: Make DMA pages shared · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
Re: [PATCH v5 06/16] x86/tdx: Make DMA pages shared · Tom Lendacky <thomas.lendacky@amd.com> · 2021-10-20
Re: [PATCH v5 06/16] x86/tdx: Make DMA pages shared · Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-20
Re: [PATCH v5 06/16] x86/tdx: Make DMA pages shared · Tom Lendacky <thomas.lendacky@amd.com> · 2021-10-20
Re: [PATCH v5 06/16] x86/tdx: Make DMA pages shared · Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-20
[PATCH v5 08/16] x86/tdx: ioapic: Add shared bit for IOAPIC base address · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
[PATCH v5 09/16] x86/tdx: Enable shared memory confidential guest flags for TDX guest · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
[PATCH v5 07/16] x86/kvm: Use bounce buffers for TD guest · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
Re: [PATCH v5 07/16] x86/kvm: Use bounce buffers for TD guest · Tom Lendacky <thomas.lendacky@amd.com> · 2021-10-20
Re: [PATCH v5 07/16] x86/kvm: Use bounce buffers for TD guest · Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-20
Re: [PATCH v5 07/16] x86/kvm: Use bounce buffers for TD guest · Tom Lendacky <thomas.lendacky@amd.com> · 2021-10-20
[PATCH v5 10/16] PCI: Consolidate pci_iomap_range(), pci_iomap_wc_range() · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
[PATCH v5 11/16] asm/io.h: Add ioremap_host_shared fallback · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
[PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-09
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Dan Williams <hidden> · 2021-10-09
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Andi Kleen <hidden> · 2021-10-10
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Dan Williams <hidden> · 2021-10-12
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Andi Kleen <hidden> · 2021-10-12
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Dan Williams <hidden> · 2021-10-12
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-12
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Andi Kleen <hidden> · 2021-10-12
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Andi Kleen <hidden> · 2021-10-12
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Dan Williams <hidden> · 2021-10-12
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Greg KH <gregkh@linuxfoundation.org> · 2021-10-18
RE: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Reshetova, Elena" <elena.reshetova@intel.com> · 2021-10-12
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Andi Kleen <hidden> · 2021-10-12
RE: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Reshetova, Elena" <elena.reshetova@intel.com> · 2021-10-12
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Dan Williams <hidden> · 2021-10-12
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Andi Kleen <hidden> · 2021-10-12
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-12
RE: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Reshetova, Elena" <elena.reshetova@intel.com> · 2021-10-14
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-14
RE: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Reshetova, Elena" <elena.reshetova@intel.com> · 2021-10-14
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-14
RE: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Reshetova, Elena" <elena.reshetova@intel.com> · 2021-10-14
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-17
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-14
RE: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Thomas Gleixner <hidden> · 2021-10-17
RE: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Reshetova, Elena" <elena.reshetova@intel.com> · 2021-10-18
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Thomas Gleixner <hidden> · 2021-10-18
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Thomas Gleixner <hidden> · 2021-10-18
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Greg KH <gregkh@linuxfoundation.org> · 2021-10-18
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Andi Kleen <hidden> · 2021-10-10
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-11
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Andi Kleen <hidden> · 2021-10-11
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-11
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Greg KH <gregkh@linuxfoundation.org> · 2021-10-18
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-18
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Christoph Hellwig <hch@infradead.org> · 2021-10-11
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Andi Kleen <hidden> · 2021-10-11
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-11
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Christoph Hellwig <hch@infradead.org> · 2021-10-12
Re: [PATCH v5 12/16] PCI: Add pci_iomap_host_shared(), pci_iomap_host_shared_range() · Andi Kleen <hidden> · 2021-10-12
[PATCH v5 13/16] PCI: Mark MSI data shared · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
[PATCH v5 14/16] virtio: Use shared mappings for virtio PCI devices · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
[PATCH v5 15/16] x86/tdx: Implement ioremap_host_shared for x86 · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
[PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · Randy Dunlap <hidden> · 2021-10-09
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · "Kuppuswamy, Sathyanarayanan" <sathyanarayanan.kuppuswamy@linux.intel.com> · 2021-10-09
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-09
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · Andi Kleen <hidden> · 2021-10-11
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-11
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · Andi Kleen <hidden> · 2021-10-11
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-11
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · Andi Kleen <hidden> · 2021-10-12
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-12
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · Andi Kleen <hidden> · 2021-10-12
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-12
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · Andi Kleen <hidden> · 2021-10-15
Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared · "Michael S. Tsirkin" <mst@redhat.com> · 2021-10-15

From: Christoph Hellwig <hch@infradead.org>
Date: 2021-10-12 05:35:31
Also in: linux-alpha, linux-doc, linux-mips, linux-pci, lkml, sparclinux, virtualization

On Mon, Oct 11, 2021 at 03:09:09PM -0400, Michael S. Tsirkin wrote:

The reason we have trouble is that it's not clear what does the API mean
outside the realm of TDX.
If we really, truly want an API that says "ioremap and it's a hardened
driver" then I guess ioremap_hardened_driver is what you want.

Yes.  And why would be we ioremap the BIOS anyway?  It is not I/O memory
in any of the senses we generally use ioremap for.

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