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Andrew Cooper 15734a72d7 x86/amd: Enumeration for speculative features/hints 
There is a step change in speculation protections between the Zen1 and Zen2
microarchitectures.

Zen1 and older have no special support.  Control bits in non-architectural
MSRs are used to make lfence be dispatch-serialising (Spectre v1), and to
disable Memory Disambiguation (Speculative Store Bypass).  IBPB was
retrofitted in a microcode update, and software methods are required for
Spectre v2 protections.

Because the bit controlling Memory Disambiguation is model specific,
hypervisors are expected to expose a MSR_VIRT_SPEC_CTRL interface which
abstracts the model specific details.

Zen2 and later implement the MSR_SPEC_CTRL interface in hardware, and
virtualise the interface for HVM guests to use.  A number of hint bits are
specified too to help guide OS software to the most efficient mitigation
strategy.

Zen3 introduced a new feature, Predictive Store Forwarding, along with a
control to disable it in sensitive code.

Add CPUID and VMCB details for all the new functionality.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
master commit: 747424c664
master date: 2021-09-08 14:16:19 +0100
2021-10-15 11:14:46 +02:00
..
check-libxl-api-rules
libxl: enforce prohibitions of internal callers
2012-08-01 12:46:52 +01:00
check-xl-disk-parse
tools: remove blktap2 related code and documentation
2019-05-15 16:19:45 +01:00
check-xl-vcpupin-parse
xl: test script for the cpumap parser (for vCPU pinning)
2013-12-09 15:20:12 +00:00
check-xl-vcpupin-parse.data-example
xl: test script for the cpumap parser (for vCPU pinning)
2013-12-09 15:20:12 +00:00
check-xl-vif-parse
libxl: fix vif rate parsing
2013-10-10 15:48:55 +01:00
CODING_STYLE
libxl: CODING_STYLE: Clarify line length limit to 75
2018-10-30 17:03:23 +00:00
flexarray.c
libxl: Have flexarray using the GC
2012-10-05 14:34:30 +01:00
flexarray.h
libxl: Add a comment about NOGC usage with flexarray
2012-10-08 11:45:29 +01:00
gentest.py
libxl: make python scripts work with python 2.6 and up
2019-03-12 14:24:53 +00:00
gentypes.py
libxl: gentypes: initialise array elements in json
2019-11-19 16:44:33 +00:00
idl.py
libxl: make python scripts work with python 2.6 and up
2019-03-12 14:24:53 +00:00
idl.txt
libxl IDL: generate deep copy functions
2014-07-10 13:06:55 +01:00
libxl_9pfs.c
libxl: move libxl__device_from_ to LIBXL_DEFINE_DEVICE_FROM_TYPE
2018-01-25 11:35:21 +00:00
libxl_aoutils.c
libxl: Refactor kill_device_model to libxl__kill_xs_path
2020-05-19 16:19:15 +01:00
libxl_arch.h
libxl: domain_config_setdefault: Document use of domid
2019-10-28 18:09:24 +00:00
libxl_arm_acpi.c
libxl/arm: Fix build on arm64 + acpi w/ gcc 8.2
2018-08-17 16:40:50 +01:00
libxl_arm_no_acpi.c
libxl/arm: Add the size of ACPI tables to maxmem
2016-09-30 11:47:27 +01:00
libxl_arm.c
libxl: On ARM, reject future new passthrough modes too
2019-10-24 16:08:41 +01:00
libxl_arm.h
libxl/arm: Add the size of ACPI tables to maxmem
2016-09-30 11:47:27 +01:00
libxl_bootloader.c
libxl: allow PVH guests to use a bootloader
2017-09-28 15:28:01 +01:00
libxl_checkpoint_device.c
libxl: remove list callback from device framework
2017-09-22 16:29:18 +01:00
libxl_colo_nic.c
libxl: use libxl__device_kind to get device XS entry
2018-01-25 11:35:14 +00:00
libxl_colo_proxy.c
libxl/colo: unified exit path for colo_proxy_checkpoint
2017-03-16 18:25:16 +00:00
libxl_colo_qdisk.c
libxl: Add Xen colo support for qemu-upstream colo code
2016-12-12 09:48:07 +00:00
libxl_colo_restore.c
libxl: Deprecate libxl__domain_{unpause,resume}
2019-09-20 10:42:41 +01:00
libxl_colo_save.c
libxl: Deprecate libxl__domain_{unpause,resume}
2019-09-20 10:42:41 +01:00
libxl_colo.h
COLO-Proxy: Use socket to get checkpoint event.
2017-03-14 11:36:52 +00:00
libxl_console.c
libxl: wait for console path before firing console_available
2020-03-04 10:15:45 +00:00
libxl_convert_callout.c
tools/libxl: Make libxl__conversion_helper_abort() safe to use
2015-08-05 10:40:35 +01:00
libxl_cpuid.c
x86/amd: Enumeration for speculative features/hints
2021-10-15 11:14:46 +02:00
libxl_cpupool.c
tools/libxl: Introduce LIBXL_CPUPOOL_POOLID_ANY
2017-02-16 12:47:12 +00:00
libxl_create.c
libxl: Fix domain soft reset state handling
2021-03-18 15:03:28 +01:00
libxl_device.c
libxl: generalise libxl__domain_userdata_lock()
2020-01-31 16:10:46 +00:00
libxl_disk.c
libxl: generalise libxl__domain_userdata_lock()
2020-01-31 16:10:46 +00:00
libxl_dm.c
libxl: Check stubdomain kernel & ramdisk presence
2020-05-19 16:19:15 +01:00
libxl_dom_save.c
tools/save: Drop unused parameters from xc_domain_save()
2020-01-07 12:26:45 +00:00
libxl_dom_suspend.c
libxl: Fix domain soft reset state handling
2021-03-18 15:03:28 +01:00
libxl_dom.c
tools/libx[cl]: Plumb bool restore down into xc_cpuid_apply_policy()
2020-06-17 13:54:12 +01:00
libxl_domain.c
libxl: stop libxl_domain_info() consuming massive amounts of stack
2020-06-02 11:57:01 +00:00
libxl_event.c
libxl: event: Move poller pipe emptying to the end of afterpoll
2020-01-27 16:03:18 +00:00
libxl_event.h
libxl: event: Document lifetime API for libxl_childproc_setmode
2020-01-20 12:10:30 +00:00
libxl_exec.c
libxl_exec: Add libxl__spawn_initiate_failure
2019-01-11 14:57:52 +00:00
libxl_flask.c
libxl: Correct license header on libxl_flask.c to be LGPL
2015-03-05 17:06:43 +00:00
libxl_fork.c
libxl: event: Make LIBXL__EVENT_DISASTER take a gc, not an egc
2020-01-27 16:03:17 +00:00
libxl_freebsd.c
tools/dm_restrict: Unshare mount and IPC namespaces on Linux
2018-11-06 15:41:24 +00:00
libxl_genid.c
libxl: constify copy and length calculation functions
2016-07-12 12:49:41 +01:00
libxl_internal.c
libxl: add infrastructure to track and query 'recent' domids
2020-02-24 17:17:35 +00:00
libxl_internal.h
libxl: Fix domain soft reset state handling
2021-03-18 15:03:28 +01:00
libxl_json.c
libxl_json: Remove libxl__json_object_append_to from header
2019-01-11 14:57:52 +00:00
libxl_json.h
libxl_json: Enable yajl_allow_trailing_garbage
2018-08-21 12:16:02 +01:00
libxl_libfdt_compat.c
tools/libxl: Check if fdt_{first,next}_subnode are present in libfdt
2015-05-21 14:59:17 +01:00
libxl_libfdt_compat.h
xen/arm: Propagate clock-frequency to DOMU if present in the DT timer node
2015-06-25 10:59:08 +01:00
libxl_linux.c
libxl: fix error message for unsharing namespaces
2019-01-18 14:22:36 +00:00
libxl_mem.c
tool/libs/light: Fix libxenlight gcc warning
2020-11-09 17:45:32 +00:00
libxl_netbsd.c
tools/dm_restrict: Unshare mount and IPC namespaces on Linux
2018-11-06 15:41:24 +00:00
libxl_netbuffer.c
libxl: use libxl__device_kind to get device XS entry
2018-01-25 11:35:14 +00:00
libxl_nic.c
libxl: Constify libxl_device_* param of *_getinfo
2019-09-20 10:41:01 +01:00
libxl_no_colo.c
libxl/libxl_no_colo.c: used LOG*D functions
2016-12-03 15:57:34 +00:00
libxl_no_convert_callout.c
tools/libxl: Infrastructure to convert a legacy stream
2015-07-15 11:22:53 +01:00
libxl_nocpuid.c
tools/libx[cl]: Plumb bool restore down into xc_cpuid_apply_policy()
2020-06-17 13:54:12 +01:00
libxl_nonetbuffer.c
tools/libxl: rename remus device to checkpoint device
2016-02-26 15:14:47 +00:00
libxl_numa.c
libxl: initialise nr_dom_vcpus to fix 4a6070ea9
2016-10-24 11:53:20 +01:00
libxl_osdeps.h
tools: include sys/sysmacros.h on Linux
2017-03-15 10:22:33 +00:00
libxl_paths.c
tools: provide --with-system-ipxe
2018-07-16 16:09:14 +01:00
libxl_pci.c
libxl: tooling expects wrong errno
2020-06-26 11:56:31 +00:00
libxl_psr.c
tools: implement new generic set value interface and MBA set value command
2018-01-18 11:32:51 +00:00
libxl_pvcalls.c
xl/libxl: add pvcalls support
2018-03-30 12:51:55 +01:00
libxl_qmp.c
libxl: add save/restore support for qemu-xen in stubdomain
2020-05-19 16:19:15 +01:00
libxl_remus_disk_drbd.c
setup and control colo proxy on primary side
2016-04-01 14:33:16 +01:00
libxl_remus.c
libxl: Deprecate libxl__domain_{unpause,resume}
2019-09-20 10:42:41 +01:00
libxl_save_callout.c
tools/save: Drop unused parameters from xc_domain_save()
2020-01-07 12:26:45 +00:00
libxl_save_helper.c
tools/libxl: Simplify callback handling in libxl-save-helper
2020-02-27 18:56:24 +00:00
libxl_save_msgs_gen.pl
tools/libx[cl]: Plumb 'missing' through static_data_done() up into libxl
2020-05-29 17:33:03 +01:00
libxl_sched.c
tools: libxl/xl: allow to get/set Credit1's vcpu_migration_delay
2018-03-21 16:24:58 +00:00
libxl_sr_stream_format.h
docs/libxl: Introduce CHECKPOINT_CONTEXT to support migration v2 colo streams
2016-04-01 11:07:28 +08:00
libxl_stream_read.c
tools/restore: Drop unused parameters from xc_domain_restore()
2020-01-03 18:37:25 +00:00
libxl_stream_write.c
libxl: remove device model "none" support from stream functions
2017-09-28 15:28:02 +01:00
libxl_test_fdevent.c
libxl: event tests: Provide libxl_test_fdevent
2015-07-15 11:40:43 +01:00
libxl_test_fdevent.h
libxl: event tests: Provide libxl_test_fdevent
2015-07-15 11:40:43 +01:00
libxl_test_timedereg.c
libxl: event tests: test_timedereg: Fix rc handling
2015-07-15 11:40:44 +01:00
libxl_test_timedereg.h
libxl: events: timedereg internal unit test
2014-02-06 14:21:30 +00:00
libxl_tmem.c
tools: remove tmem code and commands
2019-05-13 11:28:27 +01:00
libxl_types_internal.idl
libxl: introduce new backend type VINPUT
2019-11-25 10:42:56 +00:00
libxl_types.idl
libxl: Handle Linux stubdomain specific QEMU options.
2020-05-18 23:23:44 +01:00
libxl_usb.c
libxl: generalise libxl__domain_userdata_lock()
2020-01-31 16:10:46 +00:00
libxl_utils.c
libxl: fix -Werror=stringop-truncation in libxl__prepare_sockaddr_un
2020-11-09 17:13:39 +00:00
libxl_utils.h
libxl: Remove/deprecate libxl_get_required_*_memory from the API
2019-10-24 16:08:41 +01:00
libxl_uuid.c
libxl: replace the usage of uuid_t with a char array
2016-04-08 15:07:17 +01:00
libxl_uuid.h
libxl: fix old style declarations
2016-04-20 14:34:04 +01:00
libxl_vdispl.c
libxl: Constify libxl_device_* param of *_getinfo
2019-09-20 10:41:01 +01:00
libxl_vkb.c
libxl: introduce new backend type VINPUT
2019-11-25 10:42:56 +00:00
libxl_vnuma.c
libxl/libxl_vnuma.c: used LOG*D functions
2016-12-03 15:57:35 +00:00
libxl_vsnd.c
libxl: Constify libxl_device_* param of *_getinfo
2019-09-20 10:41:01 +01:00
libxl_vtpm.c
libxl: Constify libxl_device_* param of *_getinfo
2019-09-20 10:41:01 +01:00
libxl_x86_acpi.c
libxl: fix memory map reported to PVH guests
2018-04-23 14:31:05 +01:00
libxl_x86_acpi.h
libxl/acpi: Build ACPI tables for HVMlite guests
2016-09-28 14:32:05 +01:00
libxl_x86.c
libxl/x86: check return value of SHADOW_OP_SET_ALLOCATION domctl
2021-08-19 17:47:20 +01:00
libxl_xshelp.c
libxl: remove one indentation level
2019-06-28 11:54:52 +01:00
libxl.c
tools/libxl: use libxenhypfs for setting xen runtime parameters
2020-05-29 12:20:08 +02:00
libxl.h
tools/libx[cl]: Introduce struct xc_xend_cpuid for xc_cpuid_set()
2020-06-17 13:54:12 +01:00
libxlu_cfg_i.h
libxlu: Handle += in config files
2019-09-20 12:20:02 +01:00
libxlu_cfg_l.c
tools: Commit flex (2.6.4) & bison (3.3.2) output from Debian buster
2020-06-19 16:20:11 +01:00
libxlu_cfg_l.h
tools: Commit flex (2.6.4) & bison (3.3.2) output from Debian buster
2020-06-19 16:20:11 +01:00
libxlu_cfg_l.l
libxlu: Handle += in config files
2019-09-20 12:20:02 +01:00
libxlu_cfg_y.c
tools: Commit flex (2.6.4) & bison (3.3.2) output from Debian buster
2020-06-19 16:20:11 +01:00
libxlu_cfg_y.h
tools: Commit flex (2.6.4) & bison (3.3.2) output from Debian buster
2020-06-19 16:20:11 +01:00
libxlu_cfg_y.y
libxlu: Handle += in config files
2019-09-20 12:20:02 +01:00
libxlu_cfg.c
docs etc.: https: Fix references to wiki.xen[project].org
2020-03-30 15:27:06 +01:00
libxlu_disk_i.h
libxl: support custom block hotplug scripts
2012-08-06 12:28:03 +01:00
libxlu_disk_l.c
tools/libxl: disable clang indentation check for the disk parser
2020-05-10 13:02:18 +01:00
libxlu_disk_l.h
tools/libxl: disable clang indentation check for the disk parser
2020-05-10 13:02:18 +01:00
libxlu_disk_l.l
tools/libxl: disable clang indentation check for the disk parser
2020-05-10 13:02:18 +01:00
libxlu_disk.c
libxl: properly set default of discard_enable
2014-06-17 10:08:57 +01:00
libxlu_internal.h
libxlu: Handle += in config files
2019-09-20 12:20:02 +01:00
libxlu_pci.c
libxl: workaround gcc 10.2 maybe-uninitialized warning
2020-11-09 17:13:34 +00:00
libxlu_vif.c
libxl: fix vif rate parsing
2013-10-10 15:48:55 +01:00
libxlutil.h
Rationalize max_grant_frames and max_maptrack_frames handling
2019-11-29 21:43:49 +00:00
Makefile
tools/libxl: use libxenhypfs for setting xen runtime parameters
2020-05-29 12:20:08 +02:00
osdeps.c
libxl: fixup incorrect indentation
2011-10-12 16:21:32 +01:00
test_common.c
libxl: event tests: Provide miniature poll machinery
2015-07-15 11:40:43 +01:00
test_common.h
libxl: event tests: Provide miniature poll machinery
2015-07-15 11:40:43 +01:00
test_fdderegrace.c
libxl: event tests: Fix =' vs ==' in fdderegrace
2015-07-15 16:02:33 +01:00
test_timedereg.c
libxl: events: timedereg internal unit test
2014-02-06 14:21:30 +00:00
xenlight.pc.in
tools/libxl: use libxenhypfs for setting xen runtime parameters
2020-05-29 12:20:08 +02:00
xlutil.pc.in
tools: adapt xenlight.pc and xlutil.pc to new pkg-config scheme
2017-03-14 14:13:14 +00:00