Matthew Barnes e42e4d8c3e tools/misc: xen-hvmcrash: Inject #DF instead of overwriting RIP ...

xen-hvmcrash would previously save records, overwrite the instruction
pointer with a bogus value, and then restore them to crash a domain
just enough to cause the guest OS to memdump.

This approach is found to be unreliable when tested on a guest running
Windows 10 x64, with some executions doing nothing at all.

Another approach would be to trigger NMIs. This approach is found to be
unreliable when tested on Linux (Ubuntu 22.04), as Linux will ignore
NMIs if it is not configured to handle such.

Injecting a double fault abort to all vCPUs is found to be more
reliable at crashing and invoking memdumps from Windows and Linux
domains.

This patch modifies the xen-hvmcrash tool to inject #DF to all vCPUs
belonging to the specified domain, instead of overwriting RIP.

Signed-off-by: Matthew Barnes <matthew.barnes@cloud.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>

2024-07-22 10:50:03 +01:00

..

9pfsd

tools/9pfsd: Fix build error caused by strerror_r

2024-03-07 14:24:42 +00:00

console

tools/console: Add escape argument to configure escape character

2023-07-27 09:47:33 +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: cleanup Makefile

2022-07-11 12:13:24 +02:00

firmware

tools/hvmloader: Further simplify SMP setup

2024-05-15 19:59:52 +01:00

flask

xen/xsm: Wire up get_dom0_console

2024-04-30 08:33:41 +02:00

fuzz

Revert "Add libfuzzer target to fuzz/x86_instruction_emulator"

2024-07-22 11:17:17 +02:00

golang

tools/arm: Introduce the "nr_spis" xl config entry

2024-05-24 16:26:22 -07:00

helpers

Revert "xen/arm: Alloc XenStore page for Dom0less DomUs from hypervisor"

2024-06-19 12:48:47 +01:00

hotplug

hotplug: Restore block-tap phy compatibility

2024-06-20 12:08:42 +02:00

include

build/mkheader: Fix Syntax/DeprecationWarnings

2024-07-04 11:43:33 +01:00

libacpi

LICENSES: Remove the use of deprecated SPDX tags

2023-05-09 10:37:29 +01:00

libfsimage

tools/libfsimage: Export a new function to preload all plugins

2023-10-11 06:36:50 +01:00

libs

tools/libxs: Drop XSTEST

2024-07-22 10:50:03 +01:00

misc

tools/misc: xen-hvmcrash: Inject #DF instead of overwriting RIP

2024-07-22 10:50:03 +01:00

ocaml

xen: enable altp2m at create domain domctl

2024-05-29 16:10:04 +02:00

pygrub

tools/pygrub: Drop compatibility symlink

2023-12-20 19:15:30 +00:00

python

tools: don't expose XENFEAT_hvm_pirqs by default

2024-01-25 17:46:57 +00:00

tests

Revert "Add libfuzzer target to fuzz/x86_instruction_emulator"

2024-07-22 11:17:17 +02:00

vchan

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

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

xcutils

tools: Remove -Werror everywhere else

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

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/{c,o}xenstored: Don't link against libsystemd

2024-05-23 15:04:40 +01:00

xentop

tools/xentop: Fix cpu% sort order

2024-05-15 19:59:52 +01:00

xentrace

tools/xenalyze: Remove argp_program_bug_address

2024-06-26 14:19:29 +01:00

xl

tools/xl: Open xldevd.log with O_CLOEXEC

2024-06-24 16:22:59 +01:00

xs-clients

tools/xs-clients: Fix make clean rule

2024-07-04 11:32:55 +01:00

config.h.in

build: Regenerate ./configure with Autoconf 2.71

2024-07-08 14:46:12 +01:00

configure

Re-run ./autogens.h for 4.20

2024-07-18 16:00:52 +01:00

configure.ac

build: Drop libiconv as a build dependecy

2024-07-09 18:10:52 +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: add a new xen 9pfs daemon

2024-02-15 16:24:39 +00:00

Rules.mk

tools: Use -s for python shebangs

2023-03-17 10:44:16 +00:00