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linux-xiaomi-chiron/tools/testing/selftests
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Axel Rasmussen 94f3f2b31a KVM: selftests: create alias mappings when using shared memory 
When a memory region is added with a src_type specifying that it should
use some kind of shared memory, also create an alias mapping to the same
underlying physical pages.

And, add an API so tests can get access to these alias addresses.
Basically, for a guest physical address, let us look up the analogous
host *alias* address.

In a future commit, we'll modify the demand paging test to take
advantage of this to exercise UFFD minor faults. The idea is, we
pre-fault the underlying pages *via the alias*. When the *guest*
faults, it gets a "minor" fault (PTEs don't exist yet, but a page is
already in the page cache). Then, the userfaultfd theads can handle the
fault: they could potentially modify the underlying memory *via the
alias* if they wanted to, and then they install the PTEs and let the
guest carry on via a UFFDIO_CONTINUE ioctl.

Reviewed-by: Ben Gardon <bgardon@google.com>
Signed-off-by: Axel Rasmussen <axelrasmussen@google.com>
Message-Id: <20210519200339.829146-9-axelrasmussen@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-05-27 07:45:56 -04:00
..
arm64 arm64 updates for 5.13: 2021-04-26 10:25:03 -07:00
bpf Networking fixes for 5.13-rc1, including fixes from bpf, can 2021-05-08 08:31:46 -07:00
breakpoints selftests: breakpoints: Use correct error messages in breakpoint_test_arm64.c 2021-02-08 17:04:41 -07:00
capabilities
cgroup kselftests: cgroup: update kmem test for new vmstat implementation 2021-04-30 11:20:38 -07:00
clone3 selftests/clone3: Fix build error 2020-12-07 14:34:55 -07:00
core selftests/core: add regression test for CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC 2020-12-19 16:23:19 +01:00
cpu-hotplug
cpufreq
dma dma-mapping: benchmark: Add support for multi-pages map/unmap 2021-04-02 16:41:08 +02:00
dmabuf-heaps kselftests: dmabuf-heaps: Add extra checking that allocated buffers are zeroed 2021-02-08 16:25:53 -07:00
drivers selftests: mlxsw: Fix mausezahn invocation in ERSPAN scale test 2021-04-23 14:01:28 -07:00
efivarfs
exec tools/testing/selftests: add self-test for verifying load alignment 2020-10-16 11:11:21 -07:00
filesystems kselftest: introduce new epoll test case 2021-05-06 19:24:13 -07:00
firmware firmware_loader: Remove unnecessary conversion to bool 2021-03-23 14:51:50 +01:00
fpu selftests/fpu: Add an FPU selftest 2020-06-29 10:02:23 +02:00
ftrace selftests/ftrace: Add '!event' synthetic event syntax check 2021-02-11 16:22:32 -05:00
futex
gpio selftests: gpio: update .gitignore 2021-03-08 11:59:16 +01:00
ia64
intel_pstate selftests: intel_pstate: ftime() is deprecated 2020-11-10 14:41:32 -07:00
ipc selftests/ipc: remove unneeded semicolon 2021-02-08 16:32:43 -07:00
ir
kcmp
kexec
kmod selftests: kmod: use variable NAME in kmod_test_0001() 2020-08-12 10:58:01 -07:00
kselftest tweewide: Fix most Shebang lines 2020-12-08 23:30:04 +09:00
kvm KVM: selftests: create alias mappings when using shared memory 2021-05-27 07:45:56 -04:00
landlock landlock: Enable user space to infer supported features 2021-04-22 12:22:11 -07:00
lib
livepatch selftests/livepatch: Do not check order when using "comm" for dmesg checking 2020-08-27 15:27:24 +02:00
lkdtm lkdtm: Add REPORT_STACK for checking stack offsets 2021-04-08 14:05:20 +02:00
locking
media_tests
membarrier
memfd selftests/memfd: Fix implicit declaration warnings 2020-11-10 14:42:04 -07:00
memory-hotplug
mincore selftests: remove duplicate include 2021-05-07 00:26:33 -07:00
mount selftests: mount: add nosymfollow tests 2020-08-27 16:06:47 -04:00
mount_setattr tests: add mount_setattr() selftests 2021-01-24 14:43:45 +01:00
mqueue
nci selftests: Add nci suite 2021-01-29 18:03:33 -08:00
net kbuild: replace LANG=C with LC_ALL=C 2021-05-02 00:43:35 +09:00
netfilter selftests: netfilter: flowtable bridge and vlan support 2021-03-24 12:48:39 -07:00
nsfs
ntb
openat2 selftests: openat2: add RESOLVE_ conflict test 2020-12-03 10:16:28 +01:00
perf_events signal, perf: Fix siginfo_t by avoiding u64 on 32-bit architectures 2021-04-23 09:03:16 +02:00
pid_namespace selftests: Remove unneeded selftest API headers 2020-07-06 15:59:07 -06:00
pidfd selftests: pidfd: drop needless linux/kcmp.h inclusion in pidfd_setns_test.c 2020-10-27 17:04:01 -06:00
powerpc Merge branch 'akpm' (patches from Andrew) 2021-05-07 00:34:51 -07:00
prctl
proc selftests: proc: test subset=pid 2021-05-06 19:24:11 -07:00
pstore
ptp testptp: add new options for perout phase and pulse width 2020-07-20 18:04:59 -07:00
ptrace selftests: Add missing gitignore entries 2020-09-23 10:19:25 -06:00
rcutorture Merge branches 'bitmaprange.2021.03.08a', 'fixes.2021.03.15a', 'kvfree_rcu.2021.03.08a', 'mmdumpobj.2021.03.08a', 'nocb.2021.03.15a', 'poll.2021.03.24a', 'rt.2021.03.08a', 'tasks.2021.03.08a', 'torture.2021.03.08a' and 'torturescript.2021.03.22a' into HEAD 2021-03-24 17:20:18 -07:00
resctrl selftests/resctrl: Change a few printed messages 2021-04-07 16:37:49 -06:00
rseq rseq/selftests: Fix MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ build error under other arch. 2020-12-07 14:09:45 -07:00
rtc
safesetid
seccomp kconfig for kcmp syscall 2021-02-22 17:15:30 -08:00
sgx x86/sgx: Expose SGX architectural definitions to the kernel 2021-04-06 09:43:41 +02:00
sigaltstack selftests: sigaltstack: do not use ksft_exit_skip after ksft_set_plan 2020-07-06 15:57:15 -06:00
size
sparc64
splice selftests: splice: Check behavior of full and short splices 2020-08-07 10:50:11 -07:00
static_keys
sync selftests: sync_test: do not use ksft_exit_skip after ksft_set_plan 2020-07-06 15:57:28 -06:00
syscall_user_dispatch entry: Use different define for selector variable in SUD 2021-02-06 00:21:42 +01:00
sysctl
tc-testing tc-testing: add simple action test to verify batch change cleanup 2021-04-08 13:50:14 -07:00
timens selftests/timens: Fix gettime_perf to work on powerpc 2021-04-21 22:52:32 +10:00
timers selftests/timers: Fix spelling mistake "clocksourc" -> "clocksource" 2021-03-26 11:37:17 -06:00
tmpfs
tpm2 selftests: tpm: upgrade TPM2 tests from Python 2 to Python 3 2020-07-06 14:20:35 -06:00
uevent selftests: Remove unneeded selftest API headers 2020-07-06 15:59:07 -06:00
user
vDSO selftests/vDSO: fix ABI selftest on riscv 2021-02-08 16:38:34 -07:00
vm selftests/vm: gup_test: test faulting in kernel, and verify pinnable pages 2021-05-05 11:27:26 -07:00
watchdog
wireguard wireguard: selftests: test multiple parallel streams 2021-02-23 15:54:07 -08:00
x86 selftests/x86: Add a missing .note.GNU-stack section to thunks_32.S 2021-03-18 11:05:14 +01:00
zram
.gitignore
gen_kselftest_tar.sh
kselftest.h linux-kselftest-5.9-rc1 2020-08-05 10:28:25 -07:00
kselftest_deps.sh selftests: remove obsolete gpio references from kselftest_deps.sh 2021-02-15 11:43:28 +01:00
kselftest_harness.h selftests: kselftest_harness.h: partially fix kernel-doc markups 2021-01-21 14:06:00 -07:00
kselftest_install.sh
kselftest_module.h kselftest: add support for skipped tests 2021-02-15 11:07:42 +01:00
lib.mk Networking changes for 5.13. 2021-04-29 11:57:23 -07:00
Makefile selftests/landlock: Add user space tests 2021-04-22 12:22:11 -07:00
run_kselftest.sh selftests/run_kselftest.sh: fix dry-run typo 2020-11-10 14:51:39 -07:00