On 3/6/25 08:39, Peter Maydell wrote:
In the Arm ARM, rule R_TYTWB states that returning to AArch32 is an illegal exception return if: * AArch32 is not supported at any exception level * the target EL is configured for AArch64 via SCR_EL3.RW or HCR_EL2.RW or via CPU state at resetWe check the second of these, but not the first (which can only be relevant for the case of a return to EL0, because if AArch32 is not supported at one of the higher ELs then the RW bits will have an effective value of 1 and the the "configured for AArch64" condition will hold also). Add the missing condition. This isn't currently a bug because all our CPUs support AArch32 at EL0, but future CPUs we add might be 64-bit only. Signed-off-by: Peter Maydell<peter.mayd...@linaro.org> --- target/arm/tcg/helper-a64.c | 5 +++++ 1 file changed, 5 insertions(+)
Reviewed-by: Richard Henderson <richard.hender...@linaro.org> r~
