[PATCH] iommu/generic_pt: Fix the RISC-V supported feature mask

[fangyu.yu at linux.alibaba.com]

>The RISC-V format advertises Svpbmt to its users, but omits the feature
>from PT_SUPPORTED_FEATURES. Add it there so configurations which enable
>Svpbmt pass generic page-table feature validation.
>
>Fixes: f196a8668797 ("iommu/riscv: Advertise Svpbmt support to generic page table")
>Signed-off-by: Andrew Jones <andrew.jones at oss.qualcomm.com>
>---
> drivers/iommu/generic_pt/fmt/iommu_riscv64.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/iommu/generic_pt/fmt/iommu_riscv64.c b/drivers/iommu/generic_pt/fmt/iommu_riscv64.c
>index b18fc4d109f5..1bb74114fb02 100644
>--- a/drivers/iommu/generic_pt/fmt/iommu_riscv64.c
>+++ b/drivers/iommu/generic_pt/fmt/iommu_riscv64.c
>@@ -7,7 +7,8 @@
> #define PT_SUPPORTED_FEATURES                                  \
> 	(BIT(PT_FEAT_SIGN_EXTEND) | BIT(PT_FEAT_FLUSH_RANGE) | \
> 	 BIT(PT_FEAT_RISCV_SVNAPOT_64K) |                      \
>-	 BIT(PT_FEAT_DETAILED_GATHER))
>+	 BIT(PT_FEAT_DETAILED_GATHER) |                        \
>+	 BIT(PT_FEAT_RISCV_SVPBMT))
> #define PT_FORCE_ENABLED_FEATURES BIT(PT_FEAT_DETAILED_GATHER)
> 
> #include "iommu_template.h"
>-- 
>2.43.0
>

Thanks for fixing this.

When I originally tested the Svpbmt support, I had CONFIG_DEBUG_GENERIC_PT
enabled by default, so this issue was hidden by the debug supported-feature
mask and did not show up in my testing.

Tested-by: Fangyu Yu <fangyu.yu at linux.alibaba.com>