[v10] KVM: arm64: Implement support for SME

[PATCH v10 01/30] arm64/sysreg: Update SMIDR_EL1 to DDI0601 2025-06

Posted by Mark Brown 4 weeks, 1 day ago

Update the definition of SMIDR_EL1 in the sysreg definition to reflect the
information in DD0601 2025-06. This includes somewhat more generic ways of
describing the sharing of SMCUs, more information on supported priorities
and provides additional resolution for describing affinity groups.

Reviewed-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 arch/arm64/tools/sysreg | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index 9d1c21108057..b6586accf344 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -3655,11 +3655,15 @@ Field	3:0	BS
 EndSysreg
 
 Sysreg	SMIDR_EL1	3	1	0	0	6
-Res0	63:32
+Res0	63:60
+Field	59:56	NSMC
+Field	55:52	HIP
+Field	51:32	AFFINITY2
 Field	31:24	IMPLEMENTER
 Field	23:16	REVISION
 Field	15	SMPS
-Res0	14:12
+Field	14:13	SH
+Res0	12
 Field	11:0	AFFINITY
 EndSysreg
 

-- 
2.47.3

Re: [PATCH v10 01/30] arm64/sysreg: Update SMIDR_EL1 to DDI0601 2025-06

Posted by Catalin Marinas 2 weeks, 5 days ago

On Fri, Mar 06, 2026 at 05:00:53PM +0000, Mark Brown wrote:
> Update the definition of SMIDR_EL1 in the sysreg definition to reflect the
> information in DD0601 2025-06. This includes somewhat more generic ways of
> describing the sharing of SMCUs, more information on supported priorities
> and provides additional resolution for describing affinity groups.
> 
> Reviewed-by: Fuad Tabba <tabba@google.com>
> Signed-off-by: Mark Brown <broonie@kernel.org>

Acked-by: Catalin Marinas <catalin.marinas@arm.com>