Andrew Cooper 97e34ad22d tools/dombuilder: Don't allocate dom->p2m_host[] for translated domains ...

xc_dom_p2m() and dom->p2m_host[] implement a linear transform for translated
domains, but waste a substantial chunk of RAM doing so.

ARM literally never reads dom->p2m_host[] (because of the xc_dom_translated()
short circuit in xc_dom_p2m()).  Drop it all.

x86 HVM does use dom->p2m_host[] for xc_domain_populate_physmap_exact() calls
when populating 4k pages.  Reuse the same tactic from 2M/1G ranges and use an
on-stack array instead.  Drop the memory allocation.

x86 PV guests do use dom->p2m_host[] as a non-identity transform.  Rename the
field to pv_p2m to make it clear it is PV-only.

No change in the constructed guests.

Reported-by: Varad Gautam <vrd@amazon.de>
Reported-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wl@xen.org>

2020-01-07 12:46:03 +00:00

..

include

tools/dombuilder: Don't allocate dom->p2m_host[] for translated domains

2020-01-07 12:46:03 +00:00

COPYING

# HG changeset patch

2010-08-24 18:42:59 +01:00

Makefile

tools/libxc: Drop unused xc_compression_*()

2019-12-20 16:08:00 +00:00

xc_altp2m.c

x86/altp2m: Add a new hypercall to get the active altp2m index

2019-09-04 16:17:39 +01:00

xc_arinc653.c

arinc: Add poolid parameter to scheduler get/set functions

2013-12-04 14:02:10 +00:00

xc_bitops.h

libxc/bitops: correct comment for bitmap_size

2017-09-05 17:35:57 +01:00

xc_core_arm.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_core_arm.h

Replace FSF street address with canonical URL

2015-07-29 11:14:07 +01:00

xc_core_x86.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_core_x86.h

Replace FSF street address with canonical URL

2015-07-29 11:14:07 +01:00

xc_core.c

libxc: fix HVM core dump

2019-03-20 16:52:01 +00:00

xc_core.h

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_cpu_hotplug.c

x86/smt: Support for enabling/disabling SMT at runtime

2019-04-09 19:34:41 +01:00

xc_cpuid_x86.c

tools/libxc: disable x2APIC when using nested virtualization

2020-01-03 18:37:25 +00:00

xc_cpupool.c

tools/libxc: Introduce XC_CPUPOOL_POOLID_ANY

2017-02-16 12:47:10 +00:00

xc_csched2.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_csched.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_devicemodel_compat.c

x86/domctl: remove XEN_DOMCTL_pin_mem_cacheattr

2018-01-25 12:26:55 +01:00

xc_dom_arm.c

tools/dombuilder: Don't allocate dom->p2m_host[] for translated domains

2020-01-07 12:46:03 +00:00

xc_dom_armzimageloader.c

Replace FSF street address with canonical URL

2015-07-29 11:14:07 +01:00

xc_dom_binloader.c

cleanup domain builder declarations and related users

2015-09-28 17:28:35 +02:00

xc_dom_boot.c

tools/dombuilder: Remove p2m_guest from the common interface

2020-01-07 12:46:03 +00:00

xc_dom_bzimageloader.c

tools: lift BUILD_BUG_ON to a tools header file

2016-09-19 17:03:20 +01:00

xc_dom_compat_linux.c

tools/libxc: Multi modules support

2018-01-16 18:34:04 +00:00

xc_dom_core.c

tools/dombuilder: Remove p2m_guest from the common interface

2020-01-07 12:46:03 +00:00

xc_dom_decompress_lz4.c

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

2014-11-25 15:53:53 +00:00

xc_dom_decompress_unsafe_bzip2.c

libxc: Add unsafe decompressors

2013-04-22 12:46:30 +01:00

xc_dom_decompress_unsafe_lzma.c

libxc: Add unsafe decompressors

2013-04-22 12:46:30 +01:00

xc_dom_decompress_unsafe_lzo1x.c

libxc: Fix stub domain build breakage

2014-07-04 09:47:01 +01:00

xc_dom_decompress_unsafe_xz.c

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

2014-07-18 13:38:08 +01:00

xc_dom_decompress_unsafe.c

libxc: Add unsafe decompressors

2013-04-22 12:46:30 +01:00

xc_dom_decompress_unsafe.h

libxc: Add unsafe decompressors

2013-04-22 12:46:30 +01:00

xc_dom_decompress.h

libxc: add LZ4 decompression support

2013-10-07 09:42:51 +02:00

xc_dom_elfloader.c

libxc: elf_kernel loader: Remove check for shstrtab

2019-05-17 16:14:04 +01:00

xc_dom_hvmloader.c

libxl: put RSDP for PVH guest near 4GB

2018-01-18 10:40:21 +00:00

xc_dom_x86.c

tools/dombuilder: Don't allocate dom->p2m_host[] for translated domains

2020-01-07 12:46:03 +00:00

xc_domain.c

xen: Drop XEN_DOMCTL_{get,set}_machine_address_size

2019-08-28 18:28:31 +01:00

xc_efi.h

Replace FSF street address with canonical URL

2015-07-29 11:14:07 +01:00

xc_elf.h

Replace FSF street address with canonical URL

2015-07-29 11:14:07 +01:00

xc_evtchn_compat.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_evtchn.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_flask.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_foreign_memory.c

tools/libs/foreignmemory: pull array length argument to map forward

2016-01-22 12:24:19 +00:00

xc_freebsd.c

Replace FSF street address with canonical URL

2015-07-29 11:14:07 +01:00

xc_gnttab_compat.c

tools: Refactor /dev/xen/gnt{dev,shr} wrappers into libxengnttab.

2016-01-22 12:22:27 +00:00

xc_gnttab.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_hcall_buf.c

tools: Refactor hypercall calling wrappers into libxencall.

2016-01-22 12:23:30 +00:00

xc_kexec.c

kexec: implement STATUS hypercall to check if image is loaded

2017-01-18 09:55:49 +00:00

xc_linux.c

Replace FSF street address with canonical URL

2015-07-29 11:14:07 +01:00

xc_mem_access.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_mem_paging.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_memshr.c

tools/libxc: clean up memory sharing files

2019-12-19 18:05:11 +00:00

xc_minios.c

tools: Refactor foreign memory mapping into libxenforeignmemory

2016-01-22 12:24:03 +00:00

xc_misc.c

tools/libxc: Drop other examples of the 'goto x; } else if' antipattern

2019-12-20 16:08:00 +00:00

xc_monitor.c

x86/mm: suppress vm_events caused by page-walks

2018-07-05 15:25:20 +02:00

xc_msr_x86.h

tools, docs: add total/local memory bandwith monitoring

2015-03-05 16:27:49 +00:00

xc_netbsd.c

tools: Refactor foreign memory mapping into libxenforeignmemory

2016-01-22 12:24:03 +00:00

xc_nomigrate.c

tools/save: Drop unused parameters from xc_domain_save()

2020-01-07 12:26:45 +00:00

xc_offline_page.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_pagetab.c

libxc: fix xc_translate_foreign_address()

2017-04-06 10:37:24 +01:00

xc_physdev.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_pm.c

tools/libxc: allow controlling the max C-state sub-state

2019-07-22 11:35:19 +02:00

xc_private.c

libxc: Provide access to internal handles

2018-07-06 16:27:52 +01:00

xc_private.h

tools: Move the typesafe min/max helpers into xen-tools/libs.h

2018-11-05 17:07:11 +00:00

xc_psr.c

tools: implement new generic set value interface and MBA set value command

2018-01-18 11:32:51 +00:00

xc_resource.c

tools/libxc: Drop other examples of the 'goto x; } else if' antipattern

2019-12-20 16:08:00 +00:00

xc_resume.c

Revert "libxc/libxl/python/xenstat/ocaml: Use new XEN_VERSION hypercall"

2016-04-26 11:53:49 +02:00

xc_rt.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_solaris.c

tools: Refactor foreign memory mapping into libxenforeignmemory

2016-01-22 12:24:03 +00:00

xc_sr_common_x86_pv.c

libxc: try to find last used pfn when migrating

2015-12-08 16:56:18 +00:00

xc_sr_common_x86_pv.h

libxc: support of linear p2m list for migration of pv-domains

2016-01-07 12:49:33 +00:00

xc_sr_common_x86.c

libxc/migration: Rename TSC_INFO to X86_TSC_INFO

2019-12-24 14:59:04 +00:00

xc_sr_common_x86.h

libxc/migration: Rename TSC_INFO to X86_TSC_INFO

2019-12-24 14:59:04 +00:00

xc_sr_common.c

libxc/migration: Drop unimplemented domain types

2019-12-24 14:59:04 +00:00

xc_sr_common.h

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_sr_restore_x86_hvm.c

libxc/migration: Rename TSC_INFO to X86_TSC_INFO

2019-12-24 14:59:04 +00:00

xc_sr_restore_x86_pv.c

libxc/migration: Rename TSC_INFO to X86_TSC_INFO

2019-12-24 14:59:04 +00:00

xc_sr_restore.c

tools/restore: Drop unused parameters from xc_domain_restore()

2020-01-03 18:37:25 +00:00

xc_sr_save_x86_hvm.c

libxc/migration: Rename TSC_INFO to X86_TSC_INFO

2019-12-24 14:59:04 +00:00

xc_sr_save_x86_pv.c

libxc/migration: Rename TSC_INFO to X86_TSC_INFO

2019-12-24 14:59:04 +00:00

xc_sr_save.c

tools/save: Drop unused parameters from xc_domain_save()

2020-01-07 12:26:45 +00:00

xc_sr_stream_format.h

libxc/migration: Drop unimplemented domain types

2019-12-24 14:59:04 +00:00

xc_suspend.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xc_tbuf.c

libxc: fix leak of t_info in xc_tbuf_get_size()

2016-02-18 11:42:59 +00:00

xc_vm_event.c

vm_event: Add a new opcode to get VM_EVENT_INTERFACE_VERSION

2019-03-12 12:57:13 +00:00

xencontrol.pc.in

tools: remove gntshr support

2017-03-15 10:31:16 +00:00

xenguest.pc.in

tools: provide pkg-config file for libxenguest, update the one for libxenctrl

2017-03-14 14:13:14 +00:00

xg_private.c

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xg_private.h

tools/libxc: Fix domid parameter types

2017-10-11 12:20:17 +01:00

xg_save_restore.h

Revert "libxc/libxl/python/xenstat/ocaml: Use new XEN_VERSION hypercall"

2016-04-26 11:53:49 +02:00