From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH 00/12] IOMMU Infrastructure
Date: Wed, 16 May 2012 14:27:13 +1000 [thread overview]
Message-ID: <1337142445-26548-1-git-send-email-benh@kernel.crashing.org> (raw)
This is a resend of the iommu series, mostly from Eduard
and David with the following changes:
- Replaced the _zero functions with _set functions to
provide memset-like semantics and re-implemented in term
of cpu_physical_memory_rw() with a small local buffer
- Removed the tracking of maps, instead added callbacks
for the iommu backend to optionally provide its own map
and unmap callbacks (to do its own tracking and synchronization)
with a default implementation based on using translate. We still
add the optional "cancel" argument to map, it will be used by
subsequent iommu backend implementations. The initial TCE
implementation uses the default implementation. I removed David's
previous "wait" mechanism.
- Removed the memory barrier patch for now, we'll discuss it
separately
next reply other threads:[~2012-05-16 4:28 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-16 4:27 Benjamin Herrenschmidt [this message]
2012-05-16 4:27 ` [Qemu-devel] [PATCH 01/12] Better support for dma_addr_t variables Benjamin Herrenschmidt
2012-05-16 4:27 ` [Qemu-devel] [PATCH 02/12] Implement cpu_physical_memory_set() Benjamin Herrenschmidt
2012-05-16 4:27 ` [Qemu-devel] [PATCH 03/12] iommu: Add universal DMA helper functions Benjamin Herrenschmidt
2012-05-16 4:27 ` [Qemu-devel] [PATCH 04/12] usb-ohci: Use " Benjamin Herrenschmidt
2012-05-16 4:27 ` [Qemu-devel] [PATCH 05/12] iommu: Make sglists and dma_bdrv helpers use new universal DMA helpers Benjamin Herrenschmidt
2012-05-16 4:27 ` [Qemu-devel] [PATCH 06/12] ide/ahci: Use universal DMA helper functions Benjamin Herrenschmidt
2012-05-16 4:27 ` [Qemu-devel] [PATCH 07/12] usb: Convert usb_packet_{map, unmap} to universal DMA helpers Benjamin Herrenschmidt
2012-05-16 4:27 ` [Qemu-devel] [PATCH 08/12] iommu: Introduce IOMMU emulation infrastructure Benjamin Herrenschmidt
2012-05-16 4:27 ` [Qemu-devel] [PATCH 09/12] iommu: Add facility to cancel in-use dma memory maps Benjamin Herrenschmidt
2012-05-16 4:27 ` [Qemu-devel] [PATCH 10/12] pseries: Convert sPAPR TCEs to use generic IOMMU infrastructure Benjamin Herrenschmidt
2012-05-16 4:27 ` [Qemu-devel] [PATCH 11/12] iommu: Allow PCI to use " Benjamin Herrenschmidt
2012-05-16 4:27 ` [Qemu-devel] [PATCH 12/12] pseries: Implement IOMMU and DMA for PAPR PCI devices Benjamin Herrenschmidt
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