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/phy/intel/Kconfig | 48 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 drivers/phy/intel/Kconfig (limited to 'drivers/phy/intel/Kconfig') diff --git a/drivers/phy/intel/Kconfig b/drivers/phy/intel/Kconfig new file mode 100644 index 000000000..ac42bb2fb --- /dev/null +++ b/drivers/phy/intel/Kconfig @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Phy drivers for Intel platforms +# +config PHY_INTEL_KEEMBAY_EMMC + tristate "Intel Keem Bay EMMC PHY driver" + depends on ARCH_KEEMBAY || COMPILE_TEST + depends on HAS_IOMEM + select GENERIC_PHY + select REGMAP_MMIO + help + Choose this option if you have an Intel Keem Bay SoC. + + To compile this driver as a module, choose M here: the module + will be called phy-keembay-emmc.ko. + +config PHY_INTEL_KEEMBAY_USB + tristate "Intel Keem Bay USB PHY driver" + depends on ARCH_KEEMBAY || COMPILE_TEST + depends on HAS_IOMEM + select GENERIC_PHY + select REGMAP_MMIO + help + Choose this option if you have an Intel Keem Bay SoC. + + To compile this driver as a module, choose M here: the module + will be called phy-keembay-usb.ko. + +config PHY_INTEL_LGM_COMBO + bool "Intel Lightning Mountain ComboPHY driver" + depends on X86 || COMPILE_TEST + depends on OF && HAS_IOMEM + select MFD_SYSCON + select GENERIC_PHY + select REGMAP + help + Enable this to support Intel ComboPhy. + + This driver configures ComboPhy subsystem on Intel gateway + chipsets which provides PHYs for various controllers, EMAC, + SATA and PCIe. + +config PHY_INTEL_LGM_EMMC + tristate "Intel Lightning Mountain EMMC PHY driver" + depends on X86 || COMPILE_TEST + select GENERIC_PHY + help + Enable this to support the Intel EMMC PHY -- cgit v1.3.1