| Message ID | 20230315-arm64-override-sve-sme-v2-1-bab7593e842b@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2] arm64/idreg: Don't disable SME when disabling SVE | expand |
On Thu, 23 Mar 2023 22:06:32 +0000, Mark Brown wrote: > SVE and SME are separate features which can be implemented without each > other but currently if the user specifies arm64.nosve then we disable SME > as well as SVE. There is already a separate override for SME so remove the > implicit disablement from the SVE override. > > One usecase for this would be testing SME only support on a system which > implements both SVE and SME. > > [...] Applied to arm64 (for-next/sysreg), thanks! [1/1] arm64/idreg: Don't disable SME when disabling SVE https://git.kernel.org/arm64/c/b2ad9d4e249e Cheers,
diff --git a/arch/arm64/kernel/idreg-override.c b/arch/arm64/kernel/idreg-override.c index d833d78a7f31..9d8edeb6aa46 100644 --- a/arch/arm64/kernel/idreg-override.c +++ b/arch/arm64/kernel/idreg-override.c @@ -167,7 +167,7 @@ static const struct { } aliases[] __initconst = { { "kvm-arm.mode=nvhe", "id_aa64mmfr1.vh=0" }, { "kvm-arm.mode=protected", "id_aa64mmfr1.vh=0" }, - { "arm64.nosve", "id_aa64pfr0.sve=0 id_aa64pfr1.sme=0" }, + { "arm64.nosve", "id_aa64pfr0.sve=0" }, { "arm64.nosme", "id_aa64pfr1.sme=0" }, { "arm64.nobti", "id_aa64pfr1.bt=0" }, { "arm64.nopauth",
SVE and SME are separate features which can be implemented without each other but currently if the user specifies arm64.nosve then we disable SME as well as SVE. There is already a separate override for SME so remove the implicit disablement from the SVE override. One usecase for this would be testing SME only support on a system which implements both SVE and SME. Signed-off-by: Mark Brown <broonie@kernel.org> --- Changes in v2: - Fix typo in subject. - Link to v1: https://lore.kernel.org/r/20230315-arm64-override-sve-sme-v1-1-3514ad657548@kernel.org --- arch/arm64/kernel/idreg-override.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- base-commit: e8d018dd0257f744ca50a729e3d042cf2ec9da65 change-id: 20230315-arm64-override-sve-sme-b65f8dbbbcbe Best regards,