From a8946fde86f860c3a94dca4ee71fe04a7a519da1 Mon Sep 17 00:00:00 2001 From: Sascha Bischoff Date: Thu, 19 Mar 2026 15:59:04 +0000 Subject: [PATCH] KVM: arm64: gic-v5: Set ICH_VCTLR_EL2.En on boot This control enables virtual HPPI selection, i.e., selection and delivery of interrupts for a guest (assuming that the guest itself has opted to receive interrupts). This is set to enabled on boot as there is no reason for disabling it in normal operation as virtual interrupt signalling itself is still controlled via the HCR_EL2. Signed-off-by: Sascha Bischoff Link: https://patch.msgid.link/20260319154937.3619520-37-sascha.bischoff@arm.com Signed-off-by: Marc Zyngier --- arch/arm64/include/asm/el2_setup.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/include/asm/el2_setup.h b/arch/arm64/include/asm/el2_setup.h index 85f4c1615472..998b2a3f615a 100644 --- a/arch/arm64/include/asm/el2_setup.h +++ b/arch/arm64/include/asm/el2_setup.h @@ -248,6 +248,8 @@ ICH_HFGWTR_EL2_ICC_CR0_EL1 | \ ICH_HFGWTR_EL2_ICC_APR_EL1) msr_s SYS_ICH_HFGWTR_EL2, x0 // Disable reg write traps + mov x0, #(ICH_VCTLR_EL2_En) + msr_s SYS_ICH_VCTLR_EL2, x0 // Enable vHPPI selection .Lskip_gicv5_\@: .endm