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| author |   Luca Boccassi <luca.boccassi@gmail.com> | 2017-11-08 14:15:11 +0000 |
|---|---|---|
| committer | Luca Boccassi <luca.boccassi@gmail.com> | 2017-11-08 14:45:54 +0000 |
| commit | 055c52583a2794da8ba1e85a48cce3832372b12f (patch) | |
| tree | 8ceb1cb78fbb46a0f341f8ee24feb3c6b5540013 /doc/guides/prog_guide/env_abstraction_layer.rst | |
| parent | f239aed5e674965691846e8ce3f187dd47523689 (diff) | |
New upstream version 17.11-rc3
Change-Id: I6a5baa40612fe0c20f30b5fa773a6cbbac63a685
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'doc/guides/prog_guide/env_abstraction_layer.rst')
| -rw-r--r-- | doc/guides/prog_guide/env_abstraction_layer.rst | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/doc/guides/prog_guide/env_abstraction_layer.rst b/doc/guides/prog_guide/env_abstraction_layer.rst index fff1c063..9e834fc5 100644 --- a/doc/guides/prog_guide/env_abstraction_layer.rst +++ b/doc/guides/prog_guide/env_abstraction_layer.rst @@ -117,17 +117,6 @@ The physical address of the reserved memory for that memory zone is also returne Memory reservations done using the APIs provided by rte_malloc are also backed by pages from the hugetlbfs filesystem. -Xen Dom0 support without hugetbls -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - -The existing memory management implementation is based on the Linux kernel hugepage mechanism. -However, Xen Dom0 does not support hugepages, so a new Linux kernel module rte_dom0_mm is added to workaround this limitation. - -The EAL uses IOCTL interface to notify the Linux kernel module rte_dom0_mm to allocate memory of specified size, -and get all memory segments information from the module, -and the EAL uses MMAP interface to map the allocated memory. -For each memory segment, the physical addresses are contiguous within it but actual hardware addresses are contiguous within 2MB. - PCI Access ~~~~~~~~~~ @@ -164,7 +153,7 @@ which can trigger the generation of a core file, readable by gdb. CPU Feature Identification ~~~~~~~~~~~~~~~~~~~~~~~~~~ -The EAL can query the CPU at runtime (using the rte_cpu_get_feature() function) to determine which CPU features are available. +The EAL can query the CPU at runtime (using the rte_cpu_get_features() function) to determine which CPU features are available. User Space Interrupt Event ~~~~~~~~~~~~~~~~~~~~~~~~~~ |