lkml.org 
[lkml]   [2020]   [May]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH V3 02/16] arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register
    On Sat, May 02, 2020 at 07:03:51PM +0530, Anshuman Khandual wrote:
    > ID_DFR0 based TraceFilt feature should not be exposed to guests. Hence lets
    > drop it.
    >
    > Cc: Catalin Marinas <catalin.marinas@arm.com>
    > Cc: Will Deacon <will@kernel.org>
    > Cc: Marc Zyngier <maz@kernel.org>
    > Cc: Mark Rutland <mark.rutland@arm.com>
    > Cc: James Morse <james.morse@arm.com>
    > Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
    > Cc: linux-arm-kernel@lists.infradead.org
    > Cc: linux-kernel@vger.kernel.org
    >
    > Suggested-by: Mark Rutland <mark.rutland@arm.com>
    > Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
    > Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
    > ---
    > arch/arm64/kernel/cpufeature.c | 1 -
    > 1 file changed, 1 deletion(-)
    >
    > diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
    > index 6d032fbe416f..51386dade423 100644
    > --- a/arch/arm64/kernel/cpufeature.c
    > +++ b/arch/arm64/kernel/cpufeature.c
    > @@ -435,7 +435,6 @@ static const struct arm64_ftr_bits ftr_id_pfr1[] = {
    > };
    >
    > static const struct arm64_ftr_bits ftr_id_dfr0[] = {
    > - ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 28, 4, 0),

    Hmm, this still confuses me. Is this not now FTR_NONSTRICT? Why is that ok?

    Will

    \
     
     \ /
      Last update: 2020-05-04 22:25    [W:3.777 / U:0.064 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site