kernel/linux.git/drivers/xen, branch v7.2-rc1

Merge tag 'devicetree-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2026-06-17T18:54:57+00:00

Pull devicetree updates from Rob Herring: "DT core: - Add support for handling multiple cells in "iommu-map" entries - Support only 1 entry in /reserved-memory "reg" entries. Support for more than 1 entry has been broken - Fix a UAF on alloc_reserved_mem_array() failure - Make "ibm,phandle" handling logic specific to PPC - Use memcpy() instead of strcpy() for known length strings - Ensure __of_find_n_match_cpu_property() handles malformed "reg" entries - Add various checks that expected strings are strings before accessing them - Drop redundant memset() when unflattening DT DT bindings: - Add a DTS style checker. Currently hooked up to dt_binding_check to check examples - Convert st,nomadik platform, ti,omap-dmm, and ti,irq-crossbar bindings to DT schema - Add Apple System Management Controller hwmon, Qualcomm Hamoa Embedded Controller, Qualcomm IPQ6018 PWM controller, fsl,mc1323, Samsung SOFEF01-M DDIC panel, Freescale i.MX53 Television Encoder, Samsung S2M series PMIC extcon, and MT6365 PMIC AuxADC schemas - Extend bindings for QCom Maili and Nord PDC, QCom Hali fastrpc, qcom,eliza-imem, qcom,oryon-1-5 CPU, and MT6365 Keys - Consolidate "sram" property definitions - Fix constraints on "nvmem" properties which only contain phandles and no arg cells - Another pass of fixing "phandle-array" constraints - Add Gira vendor prefix" * tag 'devicetree-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (50 commits) dt-bindings: interrupt-controller: qcom,pdc: Add Maili compatible string dt-bindings: interrupt-controller: ti,irq-crossbar: Convert to DT schema dt-bindings: vendor-prefixes: add Gira dt-bindings: embedded-controller: Add Qualcomm reference device EC description dt-bindings: pwm: add IPQ6018 binding dt-bindings: hwmon: Add Apple System Management Controller hwmon schema docs: dt: writing-schema: Clarify what is required in a schema of: Respect #{iommu,msi}-cells in maps of: Factor arguments passed to of_map_id() into a struct of: Add convenience wrappers for of_map_id() of: reserved_mem: zero total_reserved_mem_cnt if no valid /reserved-memory entry of: reserved_mem: handle NULL name in of_reserved_mem_lookup() dt-bindings: cache: l2c2x0: Add missing power-domains dt-bindings: interrupt-controller: renesas,r9a09g077-icu: Fix reg size in example dt-bindings: nvmem: consumer: Make 'nvmem' an array of one-item entries drivers/of/overlay: Use memcpy() to copy known length strings dt-bindings: add self-test fixtures for style checker dt-bindings: wire style checker into dt_binding_check scripts/jobserver-exec: propagate child exit status dt-bindings: add DTS style checker ...

Merge tag 'x86-cpu-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip

2026-06-15T09:55:17+00:00

Pull x86 cpuid updates from Ingo Molnar: - CPUID API updates (Ahmed S. Darwish): - Introduce a centralized CPUID parser - Introduce a centralized CPUID data model - Introduce - Rename cpuid_leaf()/cpuid_subleaf() APIs - treewide: Explicitly include the x86 CPUID headers - Update to x86-cpuid-db v3.1 (Maciej Wieczor-Retman) - Continued removal of pre-i586 support and related simplifications (Ingo Molnar) - Add Intel CPU model number for rugged Panther Lake (Tony Luck) - Misc fixes, updates and cleanups by Arnd Bergmann, Chao Gao, Lukas Bulwahn, Sohil Mehta, Maciej Wieczor-Retman. * tag 'x86-cpu-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (25 commits) x86/cpu: Make CONFIG_X86_CX8 unconditional x86/cpu: Remove unused !CONFIG_X86_TSC code x86/cpuid: Update bitfields to x86-cpuid-db v3.1 tools/x86/kcpuid: Update bitfields to x86-cpuid-db v3.1 x86/cpu: Make CONFIG_X86_TSC unconditional MAINTAINERS: Drop obsolete FPU EMULATOR section x86/cpu: Fix a F00F bug warning and clean up surrounding code x86/cpu: Add Intel CPU model number for rugged Panther Lake x86/cpuid: Introduce a centralized CPUID parser x86/cpu: Introduce a centralized CPUID data model x86/cpuid: Introduce x86/cpuid: Rename cpuid_leaf()/cpuid_subleaf() APIs x86/cpu: Do not include the CPUID API header in asm/processor.h Documentation: core-api/cpu_hotplug: Remove stale cpu0_hotplug docs x86/cpu, cpufreq: Remove AMD ELAN support x86/fpu: Remove the math-emu/ FPU emulation library x86/fpu: Remove the 'no387' boot option x86/fpu: Remove MATH_EMULATION and related glue code treewide: Explicitly include the x86 CPUID headers x86/cpu: Remove the CONFIG_X86_INVD_BUG quirk ...

of: Factor arguments passed to of_map_id() into a struct

2026-06-12T15:25:39+00:00

Change of_map_id() to take a pointer to struct of_phandle_args instead of passing target device node and translated IDs separately. Update all callers accordingly. Add an explicit filter_np parameter to of_map_id() and of_map_msi_id() to separate the filter input from the output. Previously, the target parameter served dual purpose: as an input filter (if non-NULL, only match entries targeting that node) and as an output (receiving the matched node with a reference held). Now filter_np is the explicit input filter and arg->np is the pure output. Previously, of_map_id() would call of_node_put() on the matched node when a filter was provided, making reference ownership inconsistent. Remove this internal of_node_put() call so that of_map_id() now always transfers ownership of the matched node reference to the caller via arg->np. Callers are now consistently responsible for releasing this reference with of_node_put(arg->np) when done. Acked-by: Frank Li Suggested-by: Rob Herring (Arm) Suggested-by: Dmitry Baryshkov Signed-off-by: Charan Teja Kalla Signed-off-by: Vijayanand Jitta Link: https://patch.msgid.link/20260603-parse_iommu_cells-v16-2-dc509dacb19a@oss.qualcomm.com Signed-off-by: Rob Herring (Arm)

of: Add convenience wrappers for of_map_id()

2026-06-12T15:25:39+00:00

Since we now have quite a few users parsing "iommu-map" and "msi-map" properties, give them some wrappers to conveniently encapsulate the appropriate sets of property names. This will also make it easier to then change of_map_id() to correctly account for specifier cells. Reviewed-by: Rob Herring (Arm) Reviewed-by: Frank Li Acked-by: Marc Zyngier Acked-by: Bjorn Helgaas Signed-off-by: Robin Murphy Signed-off-by: Vijayanand Jitta Link: https://patch.msgid.link/20260603-parse_iommu_cells-v16-1-dc509dacb19a@oss.qualcomm.com Signed-off-by: Rob Herring (Arm)

xen/xenbus: Replace strcpy() with memcpy()

2026-06-09T14:23:41+00:00

The length of the string is calculated in order to allocate the correct sized memory block, use the same length to copy the string. Signed-off-by: David Laight Reviewed-by: Juergen Gross Signed-off-by: Juergen Gross Message-ID: <20260606202633.5018-4-david.laight.linux@gmail.com>

xen: balloon: Replace sprintf() with sysfs_emit()

2026-06-08T07:01:49+00:00

Replace sprintf() calls with sysfs_emit() to follow current kernel coding standards. sysfs_emit() is the preferred method for formatting sysfs output as it provides better bounds checking and is more secure. Signed-off-by: Yash Suthar Reviewed-by: Juergen Gross Signed-off-by: Juergen Gross Message-ID: <20260517133817.29691-1-yashsuthar983@gmail.com>

xen/mcelog: mark g_physinfo, ncpus and xen_mce_chrdev_device as __ro_after_init

2026-06-08T07:01:02+00:00

The 'g_physinfo' and 'ncpus' variables are initialized only during the init phase in the 'bind_virq_for_mce' function and never changed. So, mark them as __ro_after_init. The 'xen_mce_chrdev_device' variable is initialized only in the declaration and never changed. So, this variable could be 'const', but using the 'misc_register' and 'misc_deregister' functions discards the 'const' qualifier. Therefore, as an alternative, mark it as __ro_after_init. Signed-off-by: Len Bao Reviewed-by: Juergen Gross Signed-off-by: Juergen Gross Message-ID: <20260523132802.25391-1-len.bao@gmx.us>

xen/platform-pci: Simplify initialization of pci_device_id array

2026-06-08T06:57:25+00:00

Instead of using a list initializer---that is hard to read unless you know the structure of struct pci_device_id by heart---use the PCI_VDEVICE macro to assign the needed values and drop all explicit but unneeded zeros. This doesn't introduce any changes to the compiled result of the array. Signed-off-by: Uwe Kleine-König (The Capable Hub) Reviewed-by: Juergen Gross Signed-off-by: Juergen Gross Message-ID: <20260505102909.2380470-2-u.kleine-koenig@baylibre.com>

ACPI: PAD: xen: Check ACPI_COMPANION() against NULL

2026-05-12T17:01:37+00:00

Every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), so platform drivers that rely on the existence of a device's ACPI companion object need to verify its presence. Accordingly, add a requisite ACPI_COMPANION() check against NULL to the Xen variant of the ACPI processor aggregator device (PAD) driver. Fixes: 112b2f978afe ("ACPI: PAD: xen: Convert to a platform driver") Signed-off-by: Rafael J. Wysocki Acked-by: Juergen Gross Link: https://patch.msgid.link/3427762.aeNJFYEL58@rafael.j.wysocki

treewide: Explicitly include the x86 CPUID headers

2026-05-06T12:29:59+00:00

Modify all CPUID call sites which implicitly include any of the CPUID headers to explicitly include them instead. For KVM's reverse_cpuid.h, just include since it references the CPUID_EAX..EDX symbols without using the CPUID APIs. Note, this allows removing the inclusion of from within next. That allows the CPUID API headers to include without introducing a circular dependency. Signed-off-by: Ahmed S. Darwish Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/20260327021645.555257-1-darwi@linutronix.de