Thread (18 messages) 18 messages, 2 authors, 2025-03-04
STALE510d LANDED
Revisions (4)
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  2. v2 [diff vs current]
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  4. v4 current

[PATCH v4 05/16] KVM: arm64: nv: Add ICH_*_EL2 registers to vpcu_sysreg

From: Marc Zyngier <maz@kernel.org>
Date: 2025-02-25 18:12:15
Also in: kvm, kvmarm
Subsystem: arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers: Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds

FEAT_NV2 comes with a bunch of register-to-memory redirection
involving the ICH_*_EL2 registers (LRs, APRs, VMCR, HCR).

Adds them to the vcpu_sysreg enumeration.

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_host.h | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 3a7ec98ef1238..7e0dc6b4cb99e 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -557,7 +557,33 @@ enum vcpu_sysreg {
 	VNCR(CNTP_CVAL_EL0),
 	VNCR(CNTP_CTL_EL0),
 
+	VNCR(ICH_LR0_EL2),
+	VNCR(ICH_LR1_EL2),
+	VNCR(ICH_LR2_EL2),
+	VNCR(ICH_LR3_EL2),
+	VNCR(ICH_LR4_EL2),
+	VNCR(ICH_LR5_EL2),
+	VNCR(ICH_LR6_EL2),
+	VNCR(ICH_LR7_EL2),
+	VNCR(ICH_LR8_EL2),
+	VNCR(ICH_LR9_EL2),
+	VNCR(ICH_LR10_EL2),
+	VNCR(ICH_LR11_EL2),
+	VNCR(ICH_LR12_EL2),
+	VNCR(ICH_LR13_EL2),
+	VNCR(ICH_LR14_EL2),
+	VNCR(ICH_LR15_EL2),
+
+	VNCR(ICH_AP0R0_EL2),
+	VNCR(ICH_AP0R1_EL2),
+	VNCR(ICH_AP0R2_EL2),
+	VNCR(ICH_AP0R3_EL2),
+	VNCR(ICH_AP1R0_EL2),
+	VNCR(ICH_AP1R1_EL2),
+	VNCR(ICH_AP1R2_EL2),
+	VNCR(ICH_AP1R3_EL2),
 	VNCR(ICH_HCR_EL2),
+	VNCR(ICH_VMCR_EL2),
 
 	NR_SYS_REGS	/* Nothing after this line! */
 };
-- 
2.39.2

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