Andrew Cooper bf87f3a24f tools/libxc: Improve efficiency of xc_cpuid_apply_policy() ...

Having the internals of xc_cpuid_policy() make hypercalls to collect domain
information causes xc_cpuid_apply_policy() to be very inefficient.

Re-order operations to collect all information at once at the outermost layer,
and pass a structure in to all cpuid policy generation functions.

This removes several hypercalls (4 from HVM, 3 from PV) for each of the
up-to 108 leaves processed.

No change in the eventual policy provided, although all the information
gathering how has (or has correct) error checking.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>

2015-10-07 12:26:25 +01:00

..

include

fine grained control of REP emulation optimizations

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COPYING

# HG changeset patch

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Makefile

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xc_altp2m.c

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xc_arinc653.c

arinc: Add poolid parameter to scheduler get/set functions

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xc_bitops.h

libxc/save: reuse send_dirty_pages() in send_all_pages()

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xc_compression.c

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xc_core_x86.h

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xc_core.c

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xc_core.h

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xc_cpufeature.h

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xc_cpuid_x86.c

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xc_cpupool.c

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xc_dom_arm.c

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xc_dom_armzimageloader.c

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xc_dom_binloader.c

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xc_dom_core.c

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xc_dom_decompress_lz4.c

libxc: don't leak buffer containing the uncompressed PV kernel

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xc_dom_decompress_unsafe_bzip2.c

libxc: Add unsafe decompressors

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xc_dom_decompress_unsafe_lzma.c

libxc: Add unsafe decompressors

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xc_dom_decompress_unsafe_lzo1x.c

libxc: Fix stub domain build breakage

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xc_dom_decompress_unsafe_xz.c

tools/libxc: Shuffle definitions and uses of min()/max() macros

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xc_dom_decompress_unsafe.c

libxc: Add unsafe decompressors

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xc_dom_decompress_unsafe.h

libxc: Add unsafe decompressors

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xc_dom_decompress.h

libxc: add LZ4 decompression support

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xc_dom_elfloader.c

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xc_dom_x86.c

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xc_domain.c

libxc: introduce xc_domain_getvnuma

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xc_efi.h

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xc_elf.h

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xc_evtchn.c

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xc_flask.c

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xc_hcall_buf.c

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xc_hvm_build_arm.c

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xc_hvm_build_x86.c

libxc: fix vNUMA memory allocation

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xc_kexec.c

libxc: add API for kexec hypercall

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xc_linux_osdep.c

tools/libxc: linux: Don't use getpagesize() when unmapping the grants

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xc_linux.c

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xc_mem_access.c

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xc_misc.c

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xc_monitor.c

fine grained control of REP emulation optimizations

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xc_msr_x86.h

tools, docs: add total/local memory bandwith monitoring

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xc_netbsd.c

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xc_psr.c

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xc_resource.c

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xc_resume.c

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xc_sr_common_x86_pv.c

tools/libxc: x86 PV common code

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xc_sr_common_x86_pv.h

tools/libxc: x86 PV common code

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xc_sr_common_x86.c

tools/libxc: x86 common code

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xc_sr_common_x86.h

tools/libxc: x86 common code

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xc_sr_common.c

libxc/migration: Specification update for CHECKPOINT records

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xc_sr_common.h

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xc_sr_restore_x86_hvm.c

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xc_sr_restore_x86_pv.c

libxc: fix indentation

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xc_sr_restore.c

libxc: add assertion to avoid setting same bit more than once

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xc_sr_save_x86_hvm.c

tools/libxc: Drop all XG_LIBXL_HVM_COMPAT code from libxc

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xc_sr_save_x86_pv.c

libxc/save: Adjust stream-position callbacks for checkpointed streams

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xc_sr_save.c

libxc: migration v2 prefix Memory -> Frames

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xc_sr_stream_format.h

libxc/migration: Specification update for CHECKPOINT records

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xc_suspend.c

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xc_tbuf.c

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xc_tmem.c

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xc_vm_event.c

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xenctrl_osdep_ENOSYS.c

libxc: fix printf formatting error surfaced by 66f8c6

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xg_private.c

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xg_private.h

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