From 2bc6b218717b9d08f466f88209251d54bc09b207 Mon Sep 17 00:00:00 2001 From: Fuad Tabba Date: Tue, 22 Sep 2026 19:14:30 +0100 Subject: arm64/boot: Disable trapping of PMZR_EL0 writes to EL2 __init_el2_fgt2() writes one mask to both HDFGRTR2_EL2 and HDFGWTR2_EL2. PMZR_EL0 is write-only, so its trap bit, nPMZR_EL0, exists only in HDFGWTR2_EL2 and is therefore never set: a PMZR_EL0 write from the host traps to EL2, where the nVHE hypervisor has no handler and BUG()s. The kernel never writes PMZR_EL0, but kernel.perf_user_access=1 has the PMU driver set PMUSERENR_EL0.UEN for a task with a user-read event, so a write from EL0 reaches the trap and takes the host down without a panic message. Accumulate the HDFGWTR2_EL2 bits separately, as __init_el2_fgt() already does for HDFGWTR_EL2, and set nPMZR_EL0 with the other FEAT_PMUv3p9 bits. Fixes: 858c7bfcb35e1 ("arm64/boot: Enable EL2 requirements for FEAT_PMUv3p9") Cc: stable@vger.kernel.org Signed-off-by: Fuad Tabba Reviewed-by: Anshuman Khandual Reviewed-by: Oliver Upton Signed-off-by: Will Deacon --- drivers/soc/Makefile | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 drivers/soc/Makefile (limited to 'drivers/soc/Makefile') diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile new file mode 100644 index 000000000..c9e689080 --- /dev/null +++ b/drivers/soc/Makefile @@ -0,0 +1,39 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the Linux Kernel SOC specific device drivers. +# + +obj-y += apple/ +obj-y += aspeed/ +obj-$(CONFIG_ARCH_AT91) += atmel/ +obj-y += bcm/ +obj-$(CONFIG_ARCH_CANAAN) += canaan/ +obj-$(CONFIG_EP93XX_SOC) += cirrus/ +obj-$(CONFIG_ARCH_DOVE) += dove/ +obj-$(CONFIG_MACH_DOVE) += dove/ +obj-y += fsl/ +obj-y += fujitsu/ +obj-$(CONFIG_ARCH_GEMINI) += gemini/ +obj-y += hisilicon/ +obj-y += imx/ +obj-y += ixp4xx/ +obj-$(CONFIG_SOC_XWAY) += lantiq/ +obj-$(CONFIG_LITEX_SOC_CONTROLLER) += litex/ +obj-y += loongson/ +obj-y += mediatek/ +obj-y += microchip/ +obj-y += nuvoton/ +obj-y += pxa/ +obj-y += amlogic/ +obj-y += qcom/ +obj-y += renesas/ +obj-y += rockchip/ +obj-$(CONFIG_SOC_SAMSUNG) += samsung/ +obj-y += sophgo/ +obj-y += sunxi/ +obj-$(CONFIG_ARCH_TEGRA) += tegra/ +obj-y += ti/ +obj-$(CONFIG_ARCH_U8500) += ux500/ +obj-y += versatile/ +obj-y += vt8500/ +obj-y += xilinx/ -- cgit v1.3.1