[PATCH v2 3/4] arm64/sysreg: Add ICH_VMCR_EL2

Sascha Bischoff Sascha.Bischoff at arm.com
Thu Oct 9 09:54:48 PDT 2025


Add the ICH_VMCR_EL2 register, which is required for the upcoming
GICv5 KVM support. This register has two different field encodings,
based on if it is used for GICv3 or GICv5-based VMs. The
GICv5-specific field encodings are generated with a FEAT_GCIE prefix.

This register is already described in the GICv3 KVM code
directly. This will be ported across to use the generated encodings as
part of an upcoming change.

Signed-off-by: Sascha Bischoff <sascha.bischoff at arm.com>
---
 arch/arm64/tools/sysreg | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index 696ab1f32a674..11ddcb3198fbc 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -4668,6 +4668,27 @@ Field	1	V3
 Field	0	En
 EndSysreg
 
+Sysreg	ICH_VMCR_EL2	3	4	12	11	7
+Prefix	FEAT_GCIE
+Res0	63:32
+Field	31:27	VPMR
+Res0	26:1
+Field	0	EN
+EndPrefix
+Res0	63:32
+Field	31:24	VPMR
+Field	23:21	VBPR0
+Field	20:18	VBPR1
+Res0	17:10
+Field	9	VEOIM
+Res0	8:5
+Field	4	VCBPR
+Field	3	VFIQEn
+Field	2	VAckCtl
+Field	1	VENG1
+Field	0	VENG0
+EndSysreg
+
 Sysreg	CONTEXTIDR_EL2	3	4	13	0	1
 Fields	CONTEXTIDR_ELx
 EndSysreg
-- 
2.34.1



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