| commit | 6feecb8b941f2d21e5645d0b6e0cdb776998121b | |
| author | Thomas Hanson <thomas.hanson@linaro.org> | |
| Mon, 17 Oct 2016 18:22:18 +0000 (17 19:22 +0100) | ||
| committer | Peter Maydell <peter.maydell@linaro.org> | |
| Mon, 17 Oct 2016 18:22:18 +0000 (17 19:22 +0100) | ||
| tree | 097bd46371f9446569f5dce9c76960430c602199 | treesnapshot (tar.gz zip) |
| parent | 86fb3fa4ed5873b021a362ea26a021f4aeab1bb4 | commitdiff |
target-arm: Code changes to implement overwrite of tag field on PC load
For BR, BLR and RET instructions, if tagged addresses are enabled, the
tag field in the address must be cleared out prior to loading the
address into the PC. Depending on the current EL, it will be set to
either all 0's or all 1's.
Signed-off-by: Thomas Hanson <thomas.hanson@linaro.org>
Message-id: 1476301853-15774-3-git-send-email-thomas.hanson@linaro.org
[PMM: remove unnecessary gen_a64_set_pc_reg() wrapper,
rename gen_a64_set_pc_var() to gen_a64_set_pc(), fix stray
misindentation]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
For BR, BLR and RET instructions, if tagged addresses are enabled, the
tag field in the address must be cleared out prior to loading the
address into the PC. Depending on the current EL, it will be set to
either all 0's or all 1's.
Signed-off-by: Thomas Hanson <thomas.hanson@linaro.org>
Message-id: 1476301853-15774-3-git-send-email-thomas.hanson@linaro.org
[PMM: remove unnecessary gen_a64_set_pc_reg() wrapper,
rename gen_a64_set_pc_var() to gen_a64_set_pc(), fix stray
misindentation]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| target-arm/translate-a64.c | diffblobblamehistory |