diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2020-07-27 16:12:11 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2020-07-27 16:12:11 +0100 |
| commit | d4f6dda182e19afa75706936805e18397cb95f07 (patch) | |
| tree | f746b1fe7800e2de1bf339fd16c37656fdae7434 /docs | |
| parent | 7ad01d78a9f2e80d1be41226d98f34059f7fff90 (diff) | |
target/arm: Improve IMPDEF algorithm for IRG
When GCR_EL1.RRND==1, the choosing of the random value is IMPDEF,
and the kernel is not expected to have set RGSR_EL1. Force a
non-zero value into SEED, so that we do not continually return
the same tag.
Reported-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200724163853.504655-4-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'docs')
0 files changed, 0 insertions, 0 deletions