Andrew Cooper d2aecd86c4 libxc/restore: Fix REC_TYPE_X86_PV_VCPU_XSAVE data auditing (take 2) ...

It turns out that a bug (since forever) in Xen causes XSAVE records to have
non-architectural behaviour on xsave-capable hardware, when a PV guest has not
touched the state.

In such a case, the data record returned from Xen is 2*uint64_t, both claiming
the (illegitimate) state of %xcr0 and %xcr0_accum being 0.

Adjust the bound in handle_x86_pv_vcpu_blob() to cope with this.

Fixes: 2a62c22715 "libxc/restore: Fix data auditing in handle_x86_pv_vcpu_blob()"
Reported-by: Igor Druzhinin <igor.druzhinin@citrix.com>
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wl@xen.org>
(cherry picked from commit 0729830cc4)

2020-05-05 15:49:10 +01:00

..

include

tools/libxc: Pre-cleanup for xc_cpuid_{set,apply_policy}()

2019-09-26 13:40:18 +01:00

COPYING

# HG changeset patch

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

Makefile

tools: remove tmem code and commands

2019-05-13 11:28:27 +01:00

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_compression.c

libxc: replace INVALID_P2M_ENTRY by INVALID_PFN

2015-12-02 15:27:38 +00:00

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: Fix HVM_PARAM_PAE_ENABLED handling in xc_cpuid_apply_policy()

2020-05-05 15:48:05 +01:00

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: fix arm build after bdf693ee61

2018-01-17 11:32:23 +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/libxenctrl: use new xenforeignmemory API to seed grant table

2018-08-10 13:27:24 +01:00

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

libxc: check for null size file mapping

2018-02-13 11:45:56 +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

xen/pvh: Fix segment selector ABI

2020-03-05 11:02:02 +01:00

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: Fix domid parameter types

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

xc_minios.c

tools: Refactor foreign memory mapping into libxenforeignmemory

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

xc_misc.c

tools/xen-ucode: Upload a microcode blob to the hypervisor

2019-08-01 18:45:13 +01:00

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/libxc: Fix domid parameter types

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

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

libxc: provide interface for generic resource access

2014-10-06 12:35:55 +02:00

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

tools/libxc: x86 common code

2015-05-05 14:30:46 +01:00

xc_sr_common_x86.h

tools/libxc: x86 common code

2015-05-05 14:30:46 +01:00

xc_sr_common.c

libxc: correct error message in xc_sr_common.c

2017-08-15 15:45:43 +01:00

xc_sr_common.h

tools/libxc: Fix domid parameter types

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

xc_sr_restore_x86_hvm.c

tools/libxenctrl: use new xenforeignmemory API to seed grant table

2018-08-10 13:27:24 +01:00

xc_sr_restore_x86_pv.c

libxc/restore: Fix REC_TYPE_X86_PV_VCPU_XSAVE data auditing (take 2)

2020-05-05 15:49:10 +01:00

xc_sr_restore.c

libxc/restore: Fix error message for unrecognised stream version

2020-05-05 15:45:43 +01:00

xc_sr_save_x86_hvm.c

libxc: remove stale error check for domain size in xc_sr_save_x86_hvm.c

2017-10-27 12:03:04 +01:00

xc_sr_save_x86_pv.c

tools/libxc: Correct comment for normalise_pagetable()

2018-03-07 16:00:37 +00:00

xc_sr_save.c

Introduce migration precopy policy

2017-09-26 11:10:08 +01:00

xc_sr_stream_format.h

libxc: increase maximum migration stream record length

2017-09-01 17:39:26 +01:00

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