Commit Graph

2 Commits

Author SHA1 Message Date
Jing Zhang
1cd2b08f7c KVM: arm64: selftests: Handle feature fields with nonzero minimum value correctly
There are some feature fields with nonzero minimum valid value. Make
sure get_safe_value() won't return invalid field values for them.
Also fix a bug that wrongly uses the feature bits type as the feature
bits sign causing all fields as signed in the get_safe_value() and
get_invalid_value().

Fixes: 54a9ea7352 ("KVM: arm64: selftests: Test for setting ID register from usersapce")
Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Reported-by: Itaru Kitayama <itaru.kitayama@linux.dev>
Tested-by: Itaru Kitayama <itaru.kitayama@fujitsu.com>
Signed-off-by: Jing Zhang <jingzhangos@google.com>
Link: https://lore.kernel.org/r/20240115220210.3966064-2-jingzhangos@google.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-01-24 20:52:12 +00:00
Jing Zhang
54a9ea7352 KVM: arm64: selftests: Test for setting ID register from usersapce
Add tests to verify setting ID registers from userspace is handled
correctly by KVM. Also add a test case to use ioctl
KVM_ARM_GET_REG_WRITABLE_MASKS to get writable masks.

Signed-off-by: Jing Zhang <jingzhangos@google.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231011195740.3349631-6-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2023-10-18 23:37:33 +00:00