From: Sascha Bischoff Date: Thu, 19 Mar 2026 15:59:04 +0000 (+0000) Subject: KVM: arm64: gic-v5: Set ICH_VCTLR_EL2.En on boot X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a8946fde86f860c3a94dca4ee71fe04a7a519da1;p=thirdparty%2Fkernel%2Flinux.git 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 --- diff --git a/arch/arm64/include/asm/el2_setup.h b/arch/arm64/include/asm/el2_setup.h index 85f4c1615472d..998b2a3f615a7 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