Jan Beulich cf90c8a48a x86emul: V{,P}{COMPRESS,EXPAND}* can (wrongly) trigger assertion ...

AFL has pointed out that the op_bytes-is-not-0 assertion in common SIMD
handling can trigger for these insns. Indeed when the (relevant part of)
the controlling mask register is 0, no memory is accessed at all. Leave
op_bytes unaltered in this case, to engage the short-circuiting in common
SIMD handling when fault_suppression is true and op_bytes is 0.

While there also correct a related typo in the test harness.

Fixes: 65f82d4ce1 ("x86emul: support AVX512{F,_VBMI2} compress/expand insns")
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>

2026-07-20 09:50:00 +02:00

..

9pfsd

tools: add a dedicated header file for barrier definitions

2024-12-19 10:04:45 +01:00

console

tools/macros: adjust ROUNDUP() interface to match hypervisor

2026-06-05 17:40:21 +02:00

debugger

tools: Use new xc function for some xc_domain_getinfo() calls

2023-05-10 19:59:27 +01:00

examples

tools/examples: Remove more obsolete content

2024-07-30 17:36:51 +01:00

firmware

hvmloader: add new SMBIOS tables (7, 8, 9, 26, 27, 28)

2025-08-27 11:26:33 +02:00

flask

domctl: protect locking for get_domain_state

2026-06-09 12:45:56 +01:00

fuzz

x86/cpu-policy: move CPU policy library code

2026-02-25 12:31:08 +01:00

golang

tools/libxl: add support for xenstore quota in domain_config

2026-03-27 12:06:37 +01:00

helpers

libxc: drop size parameter from xc_flask_context_to_sid()

2026-07-06 09:41:45 +02:00

hotplug

tools: remove setup_physical_bridge_port() function

2026-05-05 08:26:41 +02:00

include

libxc: drop size parameter from xc_flask_context_to_sid()

2026-07-06 09:41:45 +02:00

libacpi

libacpi: Pass missing --dm_version to mk_dsdt

2026-03-27 18:56:42 +00:00

libfsimage

tools/libfsimage: Remove the XEN_FSIMAGE_FSDIR environment variable

2026-07-03 16:52:47 +02:00

libs

libs/guest: Drop guest_data in write_batch() and fill iov directly

2026-07-10 19:35:49 +01:00

misc

tools/xen-hvmctx: shorten various format strings a little

2026-07-02 08:46:34 +02:00

ocaml

tools/ocaml/xb: Fix handling of requests with len = 0 for socket connections

2026-07-14 12:01:46 +01:00

pygrub

tools: Fix regex syntax warnings with Python 3.12

2024-12-18 13:18:19 +00:00

python

libxc: drop size parameter from xc_flask_context_to_sid()

2026-07-06 09:41:45 +02:00

tests

x86emul: V{,P}{COMPRESS,EXPAND}* can (wrongly) trigger assertion

2026-07-20 09:50:00 +02:00

vchan

tools: Use new xc function for some xc_domain_getinfo() calls

2023-05-10 19:59:27 +01:00

xcutils

tools/lsevtchn: Use errno macro to handle hypercall error cases

2024-08-02 08:43:57 +02:00

xenmon

tools: Make some callers of xc_domain_getinfo() use xc_domain_getinfolist()

2023-04-28 14:34:40 +01:00

xenpaging

tools: Modify single-domid callers of xc_domain_getinfolist()

2023-05-10 19:59:27 +01:00

xenpmd

tools: Remove -Werror everywhere else

2022-10-14 16:17:41 +01:00

xenstored

tools/macros: adjust ROUNDUP() interface to match hypervisor

2026-06-05 17:40:21 +02:00

xentop

tools/xentop: Add physical CPU statistics support

2025-09-04 14:30:53 +02:00

xentrace

tools/xenalyze: Fix -Werror=nonnull failure

2026-06-15 18:04:20 +01:00

xl

xl/parse: mark as GNU source

2026-05-18 08:59:40 +02:00

xs-clients

tools/xs-clients: support depth with xenstore-watch

2026-04-22 08:59:03 +02:00

config.h.in

tools/configure: Introduce deps on json-c lib for libxl

2025-10-06 12:28:43 +01:00

configure

Rerun ./autogen.sh for 4.23

2026-06-29 18:06:24 +01:00

configure.ac

tools/configure: Detect the presence of liblz4

2026-06-08 14:06:40 +01:00

cross-install

cross-install: Only apply in tools directory, and automatically wrap $INSTALL.

2008-08-30 08:36:02 +01:00

Makefile

tools: remove qemu-traditional

2025-06-02 10:31:21 +02:00

Rules.mk

tools: replace @xxx@ markers at build time

2025-11-21 15:51:49 +00:00