On 12/11/24 08:44, Peter Maydell wrote:
All of the TLBI insns with an NXS variant put that variant at the
same encoding but with a CRn field that is one greater than for the
original TLBI insn. To avoid having to define every TLBI insn
effectively twice, once in the normal way and once in a set of cpreg
arrays that are only registered when FEAT_XS is present, we define a
new ARM_CP_ADD_TLB_NXS type flag for cpregs. When this flag is set
in a cpreg struct and FEAT_XS is present,
define_one_arm_cp_reg_with_opaque() will automatically add a second
cpreg to the hash table for the TLBI NXS insn with:
* the crn+1 encoding
* an FGT field that indicates that it should honour HCR_EL2.FGTnXS
* a name with the "NXS" suffix
(If there are future TLBI NXS insns that don't use this same
encoding convention, it is also possible to define them manually.)
Signed-off-by: Peter Maydell<peter.mayd...@linaro.org>
---
target/arm/cpregs.h | 8 ++++++++
target/arm/helper.c | 25 +++++++++++++++++++++++++
2 files changed, 33 insertions(+)
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
r~
