diff options
Diffstat (limited to 'arch')
57 files changed, 228 insertions, 197 deletions
diff --git a/arch/arm/mach-pxa/gumstix.c b/arch/arm/mach-pxa/gumstix.c index efa6faa62a2c..1713bdf3b71e 100644 --- a/arch/arm/mach-pxa/gumstix.c +++ b/arch/arm/mach-pxa/gumstix.c @@ -21,6 +21,7 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/gpio/machine.h> +#include <linux/gpio/property.h> #include <linux/gpio.h> #include <linux/err.h> #include <linux/clk.h> @@ -40,6 +41,7 @@ #include <linux/platform_data/mmc-pxamci.h> #include "udc.h" #include "gumstix.h" +#include "devices.h" #include "generic.h" @@ -99,8 +101,8 @@ static void __init gumstix_mmc_init(void) } #endif -#ifdef CONFIG_USB_PXA25X -static const struct property_entry spitz_mci_props[] __initconst = { +#if IS_ENABLED(CONFIG_USB_PXA25X) +static const struct property_entry gumstix_vbus_props[] __initconst = { PROPERTY_ENTRY_GPIO("vbus-gpios", &pxa2xx_gpiochip_node, GPIO_GUMSTIX_USB_GPIOn, GPIO_ACTIVE_HIGH), PROPERTY_ENTRY_GPIO("pullup-gpios", &pxa2xx_gpiochip_node, @@ -109,8 +111,9 @@ static const struct property_entry spitz_mci_props[] __initconst = { }; static const struct platform_device_info gumstix_gpio_vbus_info __initconst = { - .name = "gpio-vbus", - .id = PLATFORM_DEVID_NONE, + .name = "gpio-vbus", + .id = PLATFORM_DEVID_NONE, + .properties = gumstix_vbus_props, }; static void __init gumstix_udc_init(void) diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi index e8f4d136e5df..9202181fbd65 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi @@ -43,15 +43,6 @@ sound-dai = <&mcasp0>; }; }; - - reg_usb_hub: regulator-usb-hub { - compatible = "regulator-fixed"; - enable-active-high; - /* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */ - gpio = <&main_gpio0 31 GPIO_ACTIVE_HIGH>; - regulator-boot-on; - regulator-name = "HUB_PWR_EN"; - }; }; /* Verdin ETHs */ @@ -193,11 +184,6 @@ status = "okay"; }; -/* Do not force CTRL_SLEEP_MOCI# always enabled */ -®_force_sleep_moci { - status = "disabled"; -}; - /* Verdin SD_1 */ &sdhci1 { status = "okay"; @@ -218,15 +204,7 @@ }; &usb1 { - #address-cells = <1>; - #size-cells = <0>; status = "okay"; - - usb-hub@1 { - compatible = "usb424,2744"; - reg = <1>; - vdd-supply = <®_usb_hub>; - }; }; /* Verdin CTRL_WAKE1_MICO# */ diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi index 359f53f3e019..5bef31b8577b 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi @@ -138,12 +138,6 @@ vin-supply = <®_1v8>; }; - /* - * By default we enable CTRL_SLEEP_MOCI#, this is required to have - * peripherals on the carrier board powered. - * If more granularity or power saving is required this can be disabled - * in the carrier board device tree files. - */ reg_force_sleep_moci: regulator-force-sleep-moci { compatible = "regulator-fixed"; enable-active-high; diff --git a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-mcu.dtsi index e65db6ce02bf..df7945156397 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-mcu.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-mcu.dtsi @@ -146,6 +146,8 @@ power-domains = <&k3_pds 79 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 79 0>; clock-names = "gpio"; + gpio-ranges = <&mcu_pmx0 0 0 21>, <&mcu_pmx0 21 23 1>, + <&mcu_pmx0 22 32 2>; }; mcu_rti0: watchdog@4880000 { diff --git a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi index 57383bd2eaeb..0ce9721b4176 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi @@ -45,7 +45,8 @@ &main_pmx0 { pinctrl-single,gpio-range = <&main_pmx0_range 0 32 PIN_GPIO_RANGE_IOPAD>, - <&main_pmx0_range 33 92 PIN_GPIO_RANGE_IOPAD>, + <&main_pmx0_range 33 38 PIN_GPIO_RANGE_IOPAD>, + <&main_pmx0_range 72 22 PIN_GPIO_RANGE_IOPAD>, <&main_pmx0_range 137 5 PIN_GPIO_RANGE_IOPAD>, <&main_pmx0_range 143 3 PIN_GPIO_RANGE_IOPAD>, <&main_pmx0_range 149 2 PIN_GPIO_RANGE_IOPAD>; diff --git a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi index c797980528ec..dde4bd5c6645 100644 --- a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi @@ -193,7 +193,8 @@ &main_pmx0 { pinctrl-single,gpio-range = <&main_pmx0_range 0 32 PIN_GPIO_RANGE_IOPAD>, - <&main_pmx0_range 33 55 PIN_GPIO_RANGE_IOPAD>, + <&main_pmx0_range 33 38 PIN_GPIO_RANGE_IOPAD>, + <&main_pmx0_range 72 17 PIN_GPIO_RANGE_IOPAD>, <&main_pmx0_range 101 25 PIN_GPIO_RANGE_IOPAD>, <&main_pmx0_range 137 5 PIN_GPIO_RANGE_IOPAD>, <&main_pmx0_range 143 3 PIN_GPIO_RANGE_IOPAD>, diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts index 9338d987180d..ffa38f41679d 100644 --- a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts @@ -1262,6 +1262,14 @@ &serdes0 { status = "okay"; + serdes0_pcie1_link: phy@0 { + reg = <0>; + cdns,num-lanes = <2>; + #phy-cells = <0>; + cdns,phy-type = <PHY_TYPE_PCIE>; + resets = <&serdes_wiz0 1>, <&serdes_wiz0 2>; + }; + serdes0_usb_link: phy@3 { reg = <3>; cdns,num-lanes = <1>; @@ -1386,23 +1394,6 @@ phys = <&transceiver3>; }; -&serdes0 { - status = "okay"; - - serdes0_pcie1_link: phy@0 { - reg = <0>; - cdns,num-lanes = <4>; - #phy-cells = <0>; - cdns,phy-type = <PHY_TYPE_PCIE>; - resets = <&serdes_wiz0 1>, <&serdes_wiz0 2>, - <&serdes_wiz0 3>, <&serdes_wiz0 4>; - }; -}; - -&serdes_wiz0 { - status = "okay"; -}; - &pcie1_rc { status = "okay"; num-lanes = <2>; diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi index f170f80f00c1..d4ac1c9872a5 100644 --- a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi @@ -2755,7 +2755,7 @@ interrupts = <GIC_SPI 550 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 551 IRQ_TYPE_LEVEL_HIGH>; interrupt-names = "tx", "rx"; - dmas = <&main_udmap 0xc500>, <&main_udmap 0x4500>; + dmas = <&main_udmap 0xc403>, <&main_udmap 0x4403>; dma-names = "tx", "rx"; clocks = <&k3_clks 268 0>; clock-names = "fck"; @@ -2773,7 +2773,7 @@ interrupts = <GIC_SPI 552 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 553 IRQ_TYPE_LEVEL_HIGH>; interrupt-names = "tx", "rx"; - dmas = <&main_udmap 0xc501>, <&main_udmap 0x4501>; + dmas = <&main_udmap 0xc404>, <&main_udmap 0x4404>; dma-names = "tx", "rx"; clocks = <&k3_clks 269 0>; clock-names = "fck"; diff --git a/arch/arm64/include/asm/kvm_ptrauth.h b/arch/arm64/include/asm/kvm_ptrauth.h index d81bac256abc..6199c9f7ec6e 100644 --- a/arch/arm64/include/asm/kvm_ptrauth.h +++ b/arch/arm64/include/asm/kvm_ptrauth.h @@ -104,7 +104,7 @@ alternative_else_nop_endif #define __ptrauth_save_key(ctxt, key) \ do { \ - u64 __val; \ + u64 __val; \ __val = read_sysreg_s(SYS_ ## key ## KEYLO_EL1); \ ctxt_sys_reg(ctxt, key ## KEYLO_EL1) = __val; \ __val = read_sysreg_s(SYS_ ## key ## KEYHI_EL1); \ diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig index 58f09370d17e..8304eb342be9 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -19,6 +19,7 @@ if VIRTUALIZATION menuconfig KVM bool "Kernel-based Virtual Machine (KVM) support" + depends on AS_HAS_ARMV8_4 select KVM_COMMON select KVM_GENERIC_HARDWARE_ENABLING select KVM_GENERIC_MMU_NOTIFIER diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile index a6497228c5a8..86a629aaf0a1 100644 --- a/arch/arm64/kvm/Makefile +++ b/arch/arm64/kvm/Makefile @@ -10,6 +10,9 @@ include $(srctree)/virt/kvm/Makefile.kvm obj-$(CONFIG_KVM) += kvm.o obj-$(CONFIG_KVM) += hyp/ +CFLAGS_sys_regs.o += -Wno-override-init +CFLAGS_handle_exit.o += -Wno-override-init + kvm-y += arm.o mmu.o mmio.o psci.o hypercalls.o pvtime.o \ inject_fault.o va_layout.o handle_exit.o \ guest.o debug.o reset.o sys_regs.o stacktrace.o \ diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index a7ca776b51ec..9bef7638342e 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -164,6 +164,7 @@ static int kvm_arm_default_max_vcpus(void) /** * kvm_arch_init_vm - initializes a VM data structure * @kvm: pointer to the KVM struct + * @type: kvm device type */ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) { @@ -521,10 +522,10 @@ void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) static void vcpu_set_pauth_traps(struct kvm_vcpu *vcpu) { - if (vcpu_has_ptrauth(vcpu)) { + if (vcpu_has_ptrauth(vcpu) && !is_protected_kvm_enabled()) { /* - * Either we're running running an L2 guest, and the API/APK - * bits come from L1's HCR_EL2, or API/APK are both set. + * Either we're running an L2 guest, and the API/APK bits come + * from L1's HCR_EL2, or API/APK are both set. */ if (unlikely(vcpu_has_nv(vcpu) && !is_hyp_ctxt(vcpu))) { u64 val; @@ -541,16 +542,10 @@ static void vcpu_set_pauth_traps(struct kvm_vcpu *vcpu) * Save the host keys if there is any chance for the guest * to use pauth, as the entry code will reload the guest * keys in that case. - * Protected mode is the exception to that rule, as the - * entry into the EL2 code eagerly switch back and forth - * between host and hyp keys (and kvm_hyp_ctxt is out of - * reach anyway). */ - if (is_protected_kvm_enabled()) - return; - if (vcpu->arch.hcr_el2 & (HCR_API | HCR_APK)) { struct kvm_cpu_context *ctxt; + ctxt = this_cpu_ptr_hyp_sym(kvm_hyp_ctxt); ptrauth_save_keys(ctxt); } diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h index f59ccfe11ab9..37ff87d782b6 100644 --- a/arch/arm64/kvm/hyp/include/hyp/switch.h +++ b/arch/arm64/kvm/hyp/include/hyp/switch.h @@ -27,7 +27,6 @@ #include <asm/kvm_hyp.h> #include <asm/kvm_mmu.h> #include <asm/kvm_nested.h> -#include <asm/kvm_ptrauth.h> #include <asm/fpsimd.h> #include <asm/debug-monitors.h> #include <asm/processor.h> diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile index 782b34b004be..b43426a493df 100644 --- a/arch/arm64/kvm/hyp/nvhe/Makefile +++ b/arch/arm64/kvm/hyp/nvhe/Makefile @@ -20,6 +20,8 @@ HOST_EXTRACFLAGS += -I$(objtree)/include lib-objs := clear_page.o copy_page.o memcpy.o memset.o lib-objs := $(addprefix ../../../lib/, $(lib-objs)) +CFLAGS_switch.nvhe.o += -Wno-override-init + hyp-obj-y := timer-sr.o sysreg-sr.o debug-sr.o switch.o tlb.o hyp-init.o host.o \ hyp-main.o hyp-smp.o psci-relay.o early_alloc.o page_alloc.o \ cache.o setup.o mm.o mem_protect.o sys_regs.o pkvm.o stacktrace.o ffa.o diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c index 6af179c6356d..8f5c56d5b1cd 100644 --- a/arch/arm64/kvm/hyp/nvhe/switch.c +++ b/arch/arm64/kvm/hyp/nvhe/switch.c @@ -173,9 +173,8 @@ static void __pmu_switch_to_host(struct kvm_vcpu *vcpu) static bool kvm_handle_pvm_sys64(struct kvm_vcpu *vcpu, u64 *exit_code) { /* - * Make sure we handle the exit for workarounds and ptrauth - * before the pKVM handling, as the latter could decide to - * UNDEF. + * Make sure we handle the exit for workarounds before the pKVM + * handling, as the latter could decide to UNDEF. */ return (kvm_hyp_handle_sysreg(vcpu, exit_code) || kvm_handle_pvm_sysreg(vcpu, exit_code)); diff --git a/arch/arm64/kvm/hyp/vhe/Makefile b/arch/arm64/kvm/hyp/vhe/Makefile index 3b9e5464b5b3..afc4aed9231a 100644 --- a/arch/arm64/kvm/hyp/vhe/Makefile +++ b/arch/arm64/kvm/hyp/vhe/Makefile @@ -6,6 +6,8 @@ asflags-y := -D__KVM_VHE_HYPERVISOR__ ccflags-y := -D__KVM_VHE_HYPERVISOR__ +CFLAGS_switch.o += -Wno-override-init + obj-y := timer-sr.o sysreg-sr.o debug-sr.o switch.o tlb.o obj-y += ../vgic-v3-sr.o ../aarch32.o ../vgic-v2-cpuif-proxy.o ../entry.o \ ../fpsimd.o ../hyp-entry.o ../exception.o diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c index de789e0f1ae9..bab27f9d8cc6 100644 --- a/arch/arm64/kvm/nested.c +++ b/arch/arm64/kvm/nested.c @@ -786,7 +786,7 @@ void kvm_arch_flush_shadow_all(struct kvm *kvm) if (!WARN_ON(atomic_read(&mmu->refcnt))) kvm_free_stage2_pgd(mmu); } - kfree(kvm->arch.nested_mmus); + kvfree(kvm->arch.nested_mmus); kvm->arch.nested_mmus = NULL; kvm->arch.nested_mmus_size = 0; kvm_uninit_stage2_mmu(kvm); diff --git a/arch/arm64/kvm/vgic/vgic-debug.c b/arch/arm64/kvm/vgic/vgic-debug.c index bcbc8c986b1d..bc74d06398ef 100644 --- a/arch/arm64/kvm/vgic/vgic-debug.c +++ b/arch/arm64/kvm/vgic/vgic-debug.c @@ -45,7 +45,8 @@ static void iter_next(struct kvm *kvm, struct vgic_state_iter *iter) * Let the xarray drive the iterator after the last SPI, as the iterator * has exhausted the sequentially-allocated INTID space. */ - if (iter->intid >= (iter->nr_spis + VGIC_NR_PRIVATE_IRQS - 1)) { + if (iter->intid >= (iter->nr_spis + VGIC_NR_PRIVATE_IRQS - 1) && + iter->nr_lpis) { if (iter->lpi_idx < iter->nr_lpis) xa_find_after(&dist->lpi_xa, &iter->intid, VGIC_LPI_MAX_INTID, @@ -112,7 +113,7 @@ static bool end_of_vgic(struct vgic_state_iter *iter) return iter->dist_id > 0 && iter->vcpu_id == iter->nr_cpus && iter->intid >= (iter->nr_spis + VGIC_NR_PRIVATE_IRQS) && - iter->lpi_idx > iter->nr_lpis; + (!iter->nr_lpis || iter->lpi_idx > iter->nr_lpis); } static void *vgic_debug_start(struct seq_file *s, loff_t *pos) diff --git a/arch/arm64/kvm/vgic/vgic-init.c b/arch/arm64/kvm/vgic/vgic-init.c index 7f68cf58b978..41feb858ff9a 100644 --- a/arch/arm64/kvm/vgic/vgic-init.c +++ b/arch/arm64/kvm/vgic/vgic-init.c @@ -438,14 +438,13 @@ void kvm_vgic_destroy(struct kvm *kvm) unsigned long i; mutex_lock(&kvm->slots_lock); + mutex_lock(&kvm->arch.config_lock); vgic_debug_destroy(kvm); kvm_for_each_vcpu(i, vcpu, kvm) __kvm_vgic_vcpu_destroy(vcpu); - mutex_lock(&kvm->arch.config_lock); - kvm_vgic_dist_destroy(kvm); mutex_unlock(&kvm->arch.config_lock); diff --git a/arch/arm64/kvm/vgic/vgic-irqfd.c b/arch/arm64/kvm/vgic/vgic-irqfd.c index 8c711deb25aa..c314c016659a 100644 --- a/arch/arm64/kvm/vgic/vgic-irqfd.c +++ b/arch/arm64/kvm/vgic/vgic-irqfd.c @@ -9,7 +9,7 @@ #include <kvm/arm_vgic.h> #include "vgic.h" -/** +/* * vgic_irqfd_set_irq: inject the IRQ corresponding to the * irqchip routing entry * @@ -75,7 +75,8 @@ static void kvm_populate_msi(struct kvm_kernel_irq_routing_entry *e, msi->flags = e->msi.flags; msi->devid = e->msi.devid; } -/** + +/* * kvm_set_msi: inject the MSI corresponding to the * MSI routing entry * @@ -98,7 +99,7 @@ int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e, return vgic_its_inject_msi(kvm, &msi); } -/** +/* * kvm_arch_set_irq_inatomic: fast-path for irqfd injection */ int kvm_arch_set_irq_inatomic(struct kvm_kernel_irq_routing_entry *e, diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c index 40bb43f20bf3..ba945ba78cc7 100644 --- a/arch/arm64/kvm/vgic/vgic-its.c +++ b/arch/arm64/kvm/vgic/vgic-its.c @@ -2040,6 +2040,7 @@ typedef int (*entry_fn_t)(struct vgic_its *its, u32 id, void *entry, * @start_id: the ID of the first entry in the table * (non zero for 2d level tables) * @fn: function to apply on each entry + * @opaque: pointer to opaque data * * Return: < 0 on error, 0 if last element was identified, 1 otherwise * (the last element may not be found on second level tables) @@ -2079,7 +2080,7 @@ static int scan_its_table(struct vgic_its *its, gpa_t base, int size, u32 esz, return 1; } -/** +/* * vgic_its_save_ite - Save an interrupt translation entry at @gpa */ static int vgic_its_save_ite(struct vgic_its *its, struct its_device *dev, @@ -2099,6 +2100,8 @@ static int vgic_its_save_ite(struct vgic_its *its, struct its_device *dev, /** * vgic_its_restore_ite - restore an interrupt translation entry + * + * @its: its handle * @event_id: id used for indexing * @ptr: pointer to the ITE entry * @opaque: pointer to the its_device @@ -2231,6 +2234,7 @@ static int vgic_its_restore_itt(struct vgic_its *its, struct its_device *dev) * @its: ITS handle * @dev: ITS device * @ptr: GPA + * @dte_esz: device table entry size */ static int vgic_its_save_dte(struct vgic_its *its, struct its_device *dev, gpa_t ptr, int dte_esz) @@ -2313,7 +2317,7 @@ static int vgic_its_device_cmp(void *priv, const struct list_head *a, return 1; } -/** +/* * vgic_its_save_device_tables - Save the device table and all ITT * into guest RAM * @@ -2386,7 +2390,7 @@ static int handle_l1_dte(struct vgic_its *its, u32 id, void *addr, return ret; } -/** +/* * vgic_its_restore_device_tables - Restore the device table and all ITT * from guest RAM to internal data structs */ @@ -2478,7 +2482,7 @@ static int vgic_its_restore_cte(struct vgic_its *its, gpa_t gpa, int esz) return 1; } -/** +/* * vgic_its_save_collection_table - Save the collection table into * guest RAM */ @@ -2518,7 +2522,7 @@ static int vgic_its_save_collection_table(struct vgic_its *its) return ret; } -/** +/* * vgic_its_restore_collection_table - reads the collection table * in guest memory and restores the ITS internal state. Requires the * BASER registers to be restored before. @@ -2556,7 +2560,7 @@ static int vgic_its_restore_collection_table(struct vgic_its *its) return ret; } -/** +/* * vgic_its_save_tables_v0 - Save the ITS tables into guest ARM * according to v0 ABI */ @@ -2571,7 +2575,7 @@ static int vgic_its_save_tables_v0(struct vgic_its *its) return vgic_its_save_collection_table(its); } -/** +/* * vgic_its_restore_tables_v0 - Restore the ITS tables from guest RAM * to internal data structs according to V0 ABI * diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c index ed6e412cd74b..3eecdd2f4b8f 100644 --- a/arch/arm64/kvm/vgic/vgic-v3.c +++ b/arch/arm64/kvm/vgic/vgic-v3.c @@ -370,7 +370,7 @@ static void map_all_vpes(struct kvm *kvm) dist->its_vm.vpes[i]->irq)); } -/** +/* * vgic_v3_save_pending_tables - Save the pending tables into guest RAM * kvm lock and all vcpu lock must be held */ diff --git a/arch/arm64/kvm/vgic/vgic.c b/arch/arm64/kvm/vgic/vgic.c index f07b3ddff7d4..974849ea7101 100644 --- a/arch/arm64/kvm/vgic/vgic.c +++ b/arch/arm64/kvm/vgic/vgic.c @@ -313,7 +313,7 @@ static bool vgic_validate_injection(struct vgic_irq *irq, bool level, void *owne * with all locks dropped. */ bool vgic_queue_irq_unlock(struct kvm *kvm, struct vgic_irq *irq, - unsigned long flags) + unsigned long flags) __releases(&irq->irq_lock) { struct kvm_vcpu *vcpu; diff --git a/arch/arm64/kvm/vgic/vgic.h b/arch/arm64/kvm/vgic/vgic.h index 03d356a12377..ba8f790431bd 100644 --- a/arch/arm64/kvm/vgic/vgic.h +++ b/arch/arm64/kvm/vgic/vgic.h @@ -186,7 +186,7 @@ bool vgic_get_phys_line_level(struct vgic_irq *irq); void vgic_irq_set_phys_pending(struct vgic_irq *irq, bool pending); void vgic_irq_set_phys_active(struct vgic_irq *irq, bool active); bool vgic_queue_irq_unlock(struct kvm *kvm, struct vgic_irq *irq, - unsigned long flags); + unsigned long flags) __releases(&irq->irq_lock); void vgic_kick_vcpus(struct kvm *kvm); void vgic_irq_handle_resampling(struct vgic_irq *irq, bool lr_deactivated, bool lr_pending); diff --git a/arch/loongarch/include/asm/hugetlb.h b/arch/loongarch/include/asm/hugetlb.h index aa44b3fe43dd..5da32c00d483 100644 --- a/arch/loongarch/include/asm/hugetlb.h +++ b/arch/loongarch/include/asm/hugetlb.h @@ -34,7 +34,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { pte_t clear; - pte_t pte = *ptep; + pte_t pte = ptep_get(ptep); pte_val(clear) = (unsigned long)invalid_pte_table; set_pte_at(mm, addr, ptep, clear); @@ -65,7 +65,7 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, pte_t *ptep, pte_t pte, int dirty) { - int changed = !pte_same(*ptep, pte); + int changed = !pte_same(ptep_get(ptep), pte); if (changed) { set_pte_at(vma->vm_mm, addr, ptep, pte); diff --git a/arch/loongarch/include/asm/kfence.h b/arch/loongarch/include/asm/kfence.h index 92636e82957c..da9e93024626 100644 --- a/arch/loongarch/include/asm/kfence.h +++ b/arch/loongarch/include/asm/kfence.h @@ -53,13 +53,13 @@ static inline bool kfence_protect_page(unsigned long addr, bool protect) { pte_t *pte = virt_to_kpte(addr); - if (WARN_ON(!pte) || pte_none(*pte)) + if (WARN_ON(!pte) || pte_none(ptep_get(pte))) return false; if (protect) - set_pte(pte, __pte(pte_val(*pte) & ~(_PAGE_VALID | _PAGE_PRESENT))); + set_pte(pte, __pte(pte_val(ptep_get(pte)) & ~(_PAGE_VALID | _PAGE_PRESENT))); else - set_pte(pte, __pte(pte_val(*pte) | (_PAGE_VALID | _PAGE_PRESENT))); + set_pte(pte, __pte(pte_val(ptep_get(pte)) | (_PAGE_VALID | _PAGE_PRESENT))); preempt_disable(); local_flush_tlb_one(addr); diff --git a/arch/loongarch/include/asm/kvm_host.h b/arch/loongarch/include/asm/kvm_host.h index 44b54965f5b4..5f0677e03817 100644 --- a/arch/loongarch/include/asm/kvm_host.h +++ b/arch/loongarch/include/asm/kvm_host.h @@ -26,8 +26,6 @@ #define KVM_MAX_VCPUS 256 #define KVM_MAX_CPUCFG_REGS 21 -/* memory slots that does not exposed to userspace */ -#define KVM_PRIVATE_MEM_SLOTS 0 #define KVM_HALT_POLL_NS_DEFAULT 500000 #define KVM_REQ_TLB_FLUSH_GPA KVM_ARCH_REQ(0) diff --git a/arch/loongarch/include/asm/kvm_para.h b/arch/loongarch/include/asm/kvm_para.h index 335fb86778e2..43ec61589e6c 100644 --- a/arch/loongarch/include/asm/kvm_para.h +++ b/arch/loongarch/include/asm/kvm_para.h @@ -39,9 +39,9 @@ struct kvm_steal_time { * Hypercall interface for KVM hypervisor * * a0: function identifier - * a1-a6: args + * a1-a5: args * Return value will be placed in a0. - * Up to 6 arguments are passed in a1, a2, a3, a4, a5, a6. + * Up to 5 arguments are passed in a1, a2, a3, a4, a5. */ static __always_inline long kvm_hypercall0(u64 fid) { diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h index 3fbf1f37c58e..85431f20a14d 100644 --- a/arch/loongarch/include/asm/pgtable.h +++ b/arch/loongarch/include/asm/pgtable.h @@ -106,6 +106,9 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]; #define KFENCE_AREA_START (VMEMMAP_END + 1) #define KFENCE_AREA_END (KFENCE_AREA_START + KFENCE_AREA_SIZE - 1) +#define ptep_get(ptep) READ_ONCE(*(ptep)) +#define pmdp_get(pmdp) READ_ONCE(*(pmdp)) + #define pte_ERROR(e) \ pr_err("%s:%d: bad pte %016lx.\n", __FILE__, __LINE__, pte_val(e)) #ifndef __PAGETABLE_PMD_FOLDED @@ -147,11 +150,6 @@ static inline int p4d_present(p4d_t p4d) return p4d_val(p4d) != (unsigned long)invalid_pud_table; } -static inline void p4d_clear(p4d_t *p4dp) -{ - p4d_val(*p4dp) = (unsigned long)invalid_pud_table; -} - static inline pud_t *p4d_pgtable(p4d_t p4d) { return (pud_t *)p4d_val(p4d); @@ -159,7 +157,12 @@ static inline pud_t *p4d_pgtable(p4d_t p4d) static inline void set_p4d(p4d_t *p4d, p4d_t p4dval) { - *p4d = p4dval; + WRITE_ONCE(*p4d, p4dval); +} + +static inline void p4d_clear(p4d_t *p4dp) +{ + set_p4d(p4dp, __p4d((unsigned long)invalid_pud_table)); } #define p4d_phys(p4d) PHYSADDR(p4d_val(p4d)) @@ -193,17 +196,20 @@ static inline int pud_present(pud_t pud) return pud_val(pud) != (unsigned long)invalid_pmd_table; } -static inline void pud_clear(pud_t *pudp) +static inline pmd_t *pud_pgtable(pud_t pud) { - pud_val(*pudp) = ((unsigned long)invalid_pmd_table); + return (pmd_t *)pud_val(pud); } -static inline pmd_t *pud_pgtable(pud_t pud) +static inline void set_pud(pud_t *pud, pud_t pudval) { - return (pmd_t *)pud_val(pud); + WRITE_ONCE(*pud, pudval); } -#define set_pud(pudptr, pudval) do { *(pudptr) = (pudval); } while (0) +static inline void pud_clear(pud_t *pudp) +{ + set_pud(pudp, __pud((unsigned long)invalid_pmd_table)); +} #define pud_phys(pud) PHYSADDR(pud_val(pud)) #define pud_page(pud) (pfn_to_page(pud_phys(pud) >> PAGE_SHIFT)) @@ -231,12 +237,15 @@ static inline int pmd_present(pmd_t pmd) return pmd_val(pmd) != (unsigned long)invalid_pte_table; } -static inline void pmd_clear(pmd_t *pmdp) +static inline void set_pmd(pmd_t *pmd, pmd_t pmdval) { - pmd_val(*pmdp) = ((unsigned long)invalid_pte_table); + WRITE_ONCE(*pmd, pmdval); } -#define set_pmd(pmdptr, pmdval) do { *(pmdptr) = (pmdval); } while (0) +static inline void pmd_clear(pmd_t *pmdp) +{ + set_pmd(pmdp, __pmd((unsigned long)invalid_pte_table)); +} #define pmd_phys(pmd) PHYSADDR(pmd_val(pmd)) @@ -314,7 +323,8 @@ extern void paging_init(void); static inline void set_pte(pte_t *ptep, pte_t pteval) { - *ptep = pteval; + WRITE_ONCE(*ptep, pteval); + if (pte_val(pteval) & _PAGE_GLOBAL) { pte_t *buddy = ptep_buddy(ptep); /* @@ -341,8 +351,8 @@ static inline void set_pte(pte_t *ptep, pte_t pteval) : [buddy] "+m" (buddy->pte), [tmp] "=&r" (tmp) : [global] "r" (page_global)); #else /* !CONFIG_SMP */ - if (pte_none(*buddy)) - pte_val(*buddy) = pte_val(*buddy) | _PAGE_GLOBAL; + if (pte_none(ptep_get(buddy))) + WRITE_ONCE(*buddy, __pte(pte_val(ptep_get(buddy)) | _PAGE_GLOBAL)); #endif /* CONFIG_SMP */ } } @@ -350,7 +360,7 @@ static inline void set_pte(pte_t *ptep, pte_t pteval) static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { /* Preserve global status for the pair */ - if (pte_val(*ptep_buddy(ptep)) & _PAGE_GLOBAL) + if (pte_val(ptep_get(ptep_buddy(ptep))) & _PAGE_GLOBAL) set_pte(ptep, __pte(_PAGE_GLOBAL)); else set_pte(ptep, __pte(0)); @@ -603,7 +613,7 @@ static inline pmd_t pmd_mkinvalid(pmd_t pmd) static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm, unsigned long address, pmd_t *pmdp) { - pmd_t old = *pmdp; + pmd_t old = pmdp_get(pmdp); pmd_clear(pmdp); diff --git a/arch/loongarch/kernel/efi.c b/arch/loongarch/kernel/efi.c index 000825406c1f..2bf86aeda874 100644 --- a/arch/loongarch/kernel/efi.c +++ b/arch/loongarch/kernel/efi.c @@ -66,6 +66,12 @@ void __init efi_runtime_init(void) set_bit(EFI_RUNTIME_SERVICES, &efi.flags); } +bool efi_poweroff_required(void) +{ + return efi_enabled(EFI_RUNTIME_SERVICES) && + (acpi_gbl_reduced_hardware || acpi_no_s5); +} + unsigned long __initdata screen_info_table = EFI_INVALID_TABLE_ADDR; #if defined(CONFIG_SYSFB) || defined(CONFIG_EFI_EARLYCON) diff --git a/arch/loongarch/kvm/mmu.c b/arch/loongarch/kvm/mmu.c index 2634a9e8d82c..28681dfb4b85 100644 --- a/arch/loongarch/kvm/mmu.c +++ b/arch/loongarch/kvm/mmu.c @@ -714,19 +714,19 @@ static int host_pfn_mapping_level(struct kvm *kvm, gfn_t gfn, * value) and then p*d_offset() walks into the target huge page instead * of the old page table (sees the new value). */ - pgd = READ_ONCE(*pgd_offset(kvm->mm, hva)); + pgd = pgdp_get(pgd_offset(kvm->mm, hva)); if (pgd_none(pgd)) goto out; - p4d = READ_ONCE(*p4d_offset(&pgd, hva)); + p4d = p4dp_get(p4d_offset(&pgd, hva)); if (p4d_none(p4d) || !p4d_present(p4d)) goto out; - pud = READ_ONCE(*pud_offset(&p4d, hva)); + pud = pudp_get(pud_offset(&p4d, hva)); if (pud_none(pud) || !pud_present(pud)) goto out; - pmd = READ_ONCE(*pmd_offset(&pud, hva)); + pmd = pmdp_get(pmd_offset(&pud, hva)); if (pmd_none(pmd) || !pmd_present(pmd)) goto out; diff --git a/arch/loongarch/mm/hugetlbpage.c b/arch/loongarch/mm/hugetlbpage.c index 12222c56cb59..e4068906143b 100644 --- a/arch/loongarch/mm/hugetlbpage.c +++ b/arch/loongarch/mm/hugetlbpage.c @@ -39,11 +39,11 @@ pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr, pmd_t *pmd = NULL; pgd = pgd_offset(mm, addr); - if (pgd_present(*pgd)) { + if (pgd_present(pgdp_get(pgd))) { p4d = p4d_offset(pgd, addr); - if (p4d_present(*p4d)) { + if (p4d_present(p4dp_get(p4d))) { pud = pud_offset(p4d, addr); - if (pud_present(*pud)) + if (pud_present(pudp_get(pud))) pmd = pmd_offset(pud, addr); } } diff --git a/arch/loongarch/mm/init.c b/arch/loongarch/mm/init.c index bf789d114c2d..8a87a482c8f4 100644 --- a/arch/loongarch/mm/init.c +++ b/arch/loongarch/mm/init.c @@ -141,7 +141,7 @@ void __meminit vmemmap_set_pmd(pmd_t *pmd, void *p, int node, int __meminit vmemmap_check_pmd(pmd_t *pmd, int node, unsigned long addr, unsigned long next) { - int huge = pmd_val(*pmd) & _PAGE_HUGE; + int huge = pmd_val(pmdp_get(pmd)) & _PAGE_HUGE; if (huge) vmemmap_verify((pte_t *)pmd, node, addr, next); @@ -173,7 +173,7 @@ pte_t * __init populate_kernel_pte(unsigned long addr) pud_t *pud; pmd_t *pmd; - if (p4d_none(*p4d)) { + if (p4d_none(p4dp_get(p4d))) { pud = memblock_alloc(PAGE_SIZE, PAGE_SIZE); if (!pud) panic("%s: Failed to allocate memory\n", __func__); @@ -184,7 +184,7 @@ pte_t * __init populate_kernel_pte(unsigned long addr) } pud = pud_offset(p4d, addr); - if (pud_none(*pud)) { + if (pud_none(pudp_get(pud))) { pmd = memblock_alloc(PAGE_SIZE, PAGE_SIZE); if (!pmd) panic("%s: Failed to allocate memory\n", __func__); @@ -195,7 +195,7 @@ pte_t * __init populate_kernel_pte(unsigned long addr) } pmd = pmd_offset(pud, addr); - if (!pmd_present(*pmd)) { + if (!pmd_present(pmdp_get(pmd))) { pte_t *pte; pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE); @@ -216,7 +216,7 @@ void __init __set_fixmap(enum fixed_addresses idx, BUG_ON(idx <= FIX_HOLE || idx >= __end_of_fixed_addresses); ptep = populate_kernel_pte(addr); - if (!pte_none(*ptep)) { + if (!pte_none(ptep_get(ptep))) { pte_ERROR(*ptep); return; } diff --git a/arch/loongarch/mm/kasan_init.c b/arch/loongarch/mm/kasan_init.c index c608adc99845..427d6b1aec09 100644 --- a/arch/loongarch/mm/kasan_init.c +++ b/arch/loongarch/mm/kasan_init.c @@ -105,7 +105,7 @@ static phys_addr_t __init kasan_alloc_zeroed_page(int node) static pte_t *__init kasan_pte_offset(pmd_t *pmdp, unsigned long addr, int node, bool early) { - if (__pmd_none(early, READ_ONCE(*pmdp))) { + if (__pmd_none(early, pmdp_get(pmdp))) { phys_addr_t pte_phys = early ? __pa_symbol(kasan_early_shadow_pte) : kasan_alloc_zeroed_page(node); if (!early) @@ -118,7 +118,7 @@ static pte_t *__init kasan_pte_offset(pmd_t *pmdp, unsigned long addr, int node, static pmd_t *__init kasan_pmd_offset(pud_t *pudp, unsigned long addr, int node, bool early) { - if (__pud_none(early, READ_ONCE(*pudp))) { + if (__pud_none(early, pudp_get(pudp))) { phys_addr_t pmd_phys = early ? __pa_symbol(kasan_early_shadow_pmd) : kasan_alloc_zeroed_page(node); if (!early) @@ -131,7 +131,7 @@ static pmd_t *__init kasan_pmd_offset(pud_t *pudp, unsigned long addr, int node, static pud_t *__init kasan_pud_offset(p4d_t *p4dp, unsigned long addr, int node, bool early) { - if (__p4d_none(early, READ_ONCE(*p4dp))) { + if (__p4d_none(early, p4dp_get(p4dp))) { phys_addr_t pud_phys = early ? __pa_symbol(kasan_early_shadow_pud) : kasan_alloc_zeroed_page(node); if (!early) @@ -154,7 +154,7 @@ static void __init kasan_pte_populate(pmd_t *pmdp, unsigned long addr, : kasan_alloc_zeroed_page(node); next = addr + PAGE_SIZE; set_pte(ptep, pfn_pte(__phys_to_pfn(page_phys), PAGE_KERNEL)); - } while (ptep++, addr = next, addr != end && __pte_none(early, READ_ONCE(*ptep))); + } while (ptep++, addr = next, addr != end && __pte_none(early, ptep_get(ptep))); } static void __init kasan_pmd_populate(pud_t *pudp, unsigned long addr, @@ -166,7 +166,7 @@ static void __init kasan_pmd_populate(pud_t *pudp, unsigned long addr, do { next = pmd_addr_end(addr, end); kasan_pte_populate(pmdp, addr, next, node, early); - } while (pmdp++, addr = next, addr != end && __pmd_none(early, READ_ONCE(*pmdp))); + } while (pmdp++, addr = next, addr != end && __pmd_none(early, pmdp_get(pmdp))); } static void __init kasan_pud_populate(p4d_t *p4dp, unsigned long addr, diff --git a/arch/loongarch/mm/pgtable.c b/arch/loongarch/mm/pgtable.c index bda018150000..eb6a29b491a7 100644 --- a/arch/loongarch/mm/pgtable.c +++ b/arch/loongarch/mm/pgtable.c @@ -128,7 +128,7 @@ pmd_t mk_pmd(struct page *page, pgprot_t prot) void set_pmd_at(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp, pmd_t pmd) { - *pmdp = pmd; + WRITE_ONCE(*pmdp, pmd); flush_tlb_all(); } diff --git a/arch/riscv/include/asm/hwprobe.h b/arch/riscv/include/asm/hwprobe.h index ef01c182af2b..ffb9484531af 100644 --- a/arch/riscv/include/asm/hwprobe.h +++ b/arch/riscv/include/asm/hwprobe.h @@ -8,7 +8,7 @@ #include <uapi/asm/hwprobe.h> -#define RISCV_HWPROBE_MAX_KEY 8 +#define RISCV_HWPROBE_MAX_KEY 9 static inline bool riscv_hwprobe_key_is_valid(__s64 key) { diff --git a/arch/riscv/include/uapi/asm/hwprobe.h b/arch/riscv/include/uapi/asm/hwprobe.h index b706c8e47b02..1e153cda57db 100644 --- a/arch/riscv/include/uapi/asm/hwprobe.h +++ b/arch/riscv/include/uapi/asm/hwprobe.h @@ -82,6 +82,12 @@ struct riscv_hwprobe { #define RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE 6 #define RISCV_HWPROBE_KEY_HIGHEST_VIRT_ADDRESS 7 #define RISCV_HWPROBE_KEY_TIME_CSR_FREQ 8 +#define RISCV_HWPROBE_KEY_MISALIGNED_SCALAR_PERF 9 +#define RISCV_HWPROBE_MISALIGNED_SCALAR_UNKNOWN 0 +#define RISCV_HWPROBE_MISALIGNED_SCALAR_EMULATED 1 +#define RISCV_HWPROBE_MISALIGNED_SCALAR_SLOW 2 +#define RISCV_HWPROBE_MISALIGNED_SCALAR_FAST 3 +#define RISCV_HWPROBE_MISALIGNED_SCALAR_UNSUPPORTED 4 /* Increase RISCV_HWPROBE_MAX_KEY when adding items. */ /* Flags */ diff --git a/arch/riscv/kernel/acpi_numa.c b/arch/riscv/kernel/acpi_numa.c index 0231482d6946..ff95aeebee3e 100644 --- a/arch/riscv/kernel/acpi_numa.c +++ b/arch/riscv/kernel/acpi_numa.c @@ -28,7 +28,7 @@ #include <asm/numa.h> -static int acpi_early_node_map[NR_CPUS] __initdata = { NUMA_NO_NODE }; +static int acpi_early_node_map[NR_CPUS] __initdata = { [0 ... NR_CPUS - 1] = NUMA_NO_NODE }; int __init acpi_numa_get_nid(unsigned int cpu) { diff --git a/arch/riscv/kernel/patch.c b/arch/riscv/kernel/patch.c index 69e5796fc51f..34ef522f07a8 100644 --- a/arch/riscv/kernel/patch.c +++ b/arch/riscv/kernel/patch.c @@ -205,6 +205,8 @@ int patch_text_set_nosync(void *addr, u8 c, size_t len) int ret; ret = patch_insn_set(addr, c, len); + if (!ret) + flush_icache_range((uintptr_t)addr, (uintptr_t)addr + len); return ret; } @@ -239,6 +241,8 @@ int patch_text_nosync(void *addr, const void *insns, size_t len) int ret; ret = patch_insn_write(addr, insns, len); + if (!ret) + flush_icache_range((uintptr_t)addr, (uintptr_t)addr + len); return ret; } diff --git a/arch/riscv/kernel/sys_hwprobe.c b/arch/riscv/kernel/sys_hwprobe.c index 8d1b5c35d2a7..cea0ca2bf2a2 100644 --- a/arch/riscv/kernel/sys_hwprobe.c +++ b/arch/riscv/kernel/sys_hwprobe.c @@ -178,13 +178,13 @@ static u64 hwprobe_misaligned(const struct cpumask *cpus) perf = this_perf; if (perf != this_perf) { - perf = RISCV_HWPROBE_MISALIGNED_UNKNOWN; + perf = RISCV_HWPROBE_MISALIGNED_SCALAR_UNKNOWN; break; } } if (perf == -1ULL) - return RISCV_HWPROBE_MISALIGNED_UNKNOWN; + return RISCV_HWPROBE_MISALIGNED_SCALAR_UNKNOWN; return perf; } @@ -192,12 +192,12 @@ static u64 hwprobe_misaligned(const struct cpumask *cpus) static u64 hwprobe_misaligned(const struct cpumask *cpus) { if (IS_ENABLED(CONFIG_RISCV_EFFICIENT_UNALIGNED_ACCESS)) - return RISCV_HWPROBE_MISALIGNED_FAST; + return RISCV_HWPROBE_MISALIGNED_SCALAR_FAST; if (IS_ENABLED(CONFIG_RISCV_EMULATED_UNALIGNED_ACCESS) && unaligned_ctl_available()) - return RISCV_HWPROBE_MISALIGNED_EMULATED; + return RISCV_HWPROBE_MISALIGNED_SCALAR_EMULATED; - return RISCV_HWPROBE_MISALIGNED_SLOW; + return RISCV_HWPROBE_MISALIGNED_SCALAR_SLOW; } #endif @@ -225,6 +225,7 @@ static void hwprobe_one_pair(struct riscv_hwprobe *pair, break; case RISCV_HWPROBE_KEY_CPUPERF_0: + case RISCV_HWPROBE_KEY_MISALIGNED_SCALAR_PERF: pair->value = hwprobe_misaligned(cpus); break; diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c index 05a16b1f0aee..51ebfd23e007 100644 --- a/arch/riscv/kernel/traps.c +++ b/arch/riscv/kernel/traps.c @@ -319,6 +319,7 @@ void do_trap_ecall_u(struct pt_regs *regs) regs->epc += 4; regs->orig_a0 = regs->a0; + regs->a0 = -ENOSYS; riscv_v_vstate_discard(regs); @@ -328,8 +329,7 @@ void do_trap_ecall_u(struct pt_regs *regs) if (syscall >= 0 && syscall < NR_syscalls) syscall_handler(regs, syscall); - else if (syscall != -1) - regs->a0 = -ENOSYS; + /* * Ultimately, this value will get limited by KSTACK_OFFSET_MAX(), * so the maximum stack offset is 1k bytes (10 bits). diff --git a/arch/riscv/kernel/traps_misaligned.c b/arch/riscv/kernel/traps_misaligned.c index b62d5a2f4541..192cd5603e95 100644 --- a/arch/riscv/kernel/traps_misaligned.c +++ b/arch/riscv/kernel/traps_misaligned.c @@ -338,7 +338,7 @@ int handle_misaligned_load(struct pt_regs *regs) perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, addr); #ifdef CONFIG_RISCV_PROBE_UNALIGNED_ACCESS - *this_cpu_ptr(&misaligned_access_speed) = RISCV_HWPROBE_MISALIGNED_EMULATED; + *this_cpu_ptr(&misaligned_access_speed) = RISCV_HWPROBE_MISALIGNED_SCALAR_EMULATED; #endif if (!unaligned_enabled) @@ -532,13 +532,13 @@ static bool check_unaligned_access_emulated(int cpu) unsigned long tmp_var, tmp_val; bool misaligned_emu_detected; - *mas_ptr = RISCV_HWPROBE_MISALIGNED_UNKNOWN; + *mas_ptr = RISCV_HWPROBE_MISALIGNED_SCALAR_UNKNOWN; __asm__ __volatile__ ( " "REG_L" %[tmp], 1(%[ptr])\n" : [tmp] "=r" (tmp_val) : [ptr] "r" (&tmp_var) : "memory"); - misaligned_emu_detected = (*mas_ptr == RISCV_HWPROBE_MISALIGNED_EMULATED); + misaligned_emu_detected = (*mas_ptr == RISCV_HWPROBE_MISALIGNED_SCALAR_EMULATED); /* * If unaligned_ctl is already set, this means that we detected that all * CPUS uses emulated misaligned access at boot time. If that changed diff --git a/arch/riscv/kernel/unaligned_access_speed.c b/arch/riscv/kernel/unaligned_access_speed.c index a9a6bcb02acf..160628a2116d 100644 --- a/arch/riscv/kernel/unaligned_access_speed.c +++ b/arch/riscv/kernel/unaligned_access_speed.c @@ -34,9 +34,9 @@ static int check_unaligned_access(void *param) struct page *page = param; void *dst; void *src; - long speed = RISCV_HWPROBE_MISALIGNED_SLOW; + long speed = RISCV_HWPROBE_MISALIGNED_SCALAR_SLOW; - if (per_cpu(misaligned_access_speed, cpu) != RISCV_HWPROBE_MISALIGNED_UNKNOWN) + if (per_cpu(misaligned_access_speed, cpu) != RISCV_HWPROBE_MISALIGNED_SCALAR_UNKNOWN) return 0; /* Make an unaligned destination buffer. */ @@ -95,14 +95,14 @@ static int check_unaligned_access(void *param) } if (word_cycles < byte_cycles) - speed = RISCV_HWPROBE_MISALIGNED_FAST; + speed = RISCV_HWPROBE_MISALIGNED_SCALAR_FAST; ratio = div_u64((byte_cycles * 100), word_cycles); pr_info("cpu%d: Ratio of byte access time to unaligned word access is %d.%02d, unaligned accesses are %s\n", cpu, ratio / 100, ratio % 100, - (speed == RISCV_HWPROBE_MISALIGNED_FAST) ? "fast" : "slow"); + (speed == RISCV_HWPROBE_MISALIGNED_SCALAR_FAST) ? "fast" : "slow"); per_cpu(misaligned_access_speed, cpu) = speed; @@ -110,7 +110,7 @@ static int check_unaligned_access(void *param) * Set the value of fast_misaligned_access of a CPU. These operations * are atomic to avoid race conditions. */ - if (speed == RISCV_HWPROBE_MISALIGNED_FAST) + if (speed == RISCV_HWPROBE_MISALIGNED_SCALAR_FAST) cpumask_set_cpu(cpu, &fast_misaligned_access); else cpumask_clear_cpu(cpu, &fast_misaligned_access); @@ -188,7 +188,7 @@ static int riscv_online_cpu(unsigned int cpu) static struct page *buf; /* We are already set since the last check */ - if (per_cpu(misaligned_access_speed, cpu) != RISCV_HWPROBE_MISALIGNED_UNKNOWN) + if (per_cpu(misaligned_access_speed, cpu) != RISCV_HWPROBE_MISALIGNED_SCALAR_UNKNOWN) goto exit; buf = alloc_pages(GFP_KERNEL, MISALIGNED_BUFFER_ORDER); diff --git a/arch/riscv/kernel/vendor_extensions.c b/arch/riscv/kernel/vendor_extensions.c index b6c1e7b5d34b..a8126d118341 100644 --- a/arch/riscv/kernel/vendor_extensions.c +++ b/arch/riscv/kernel/vendor_extensions.c @@ -38,7 +38,7 @@ bool __riscv_isa_vendor_extension_available(int cpu, unsigned long vendor, unsig #ifdef CONFIG_RISCV_ISA_VENDOR_EXT_ANDES case ANDES_VENDOR_ID: bmap = &riscv_isa_vendor_ext_list_andes.all_harts_isa_bitmap; - cpu_bmap = &riscv_isa_vendor_ext_list_andes.per_hart_isa_bitmap[cpu]; + cpu_bmap = riscv_isa_vendor_ext_list_andes.per_hart_isa_bitmap; break; #endif default: diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 8b698d9609e7..eb0649a61b4c 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -927,7 +927,7 @@ static void __init create_kernel_page_table(pgd_t *pgdir, PMD_SIZE, PAGE_KERNEL_EXEC); /* Map the data in RAM */ - end_va = kernel_map.virt_addr + XIP_OFFSET + kernel_map.size; + end_va = kernel_map.virt_addr + kernel_map.size; for (va = kernel_map.virt_addr + XIP_OFFSET; va < end_va; va += PMD_SIZE) create_pgd_mapping(pgdir, va, kernel_map.phys_addr + (va - (kernel_map.virt_addr + XIP_OFFSET)), @@ -1096,7 +1096,7 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa) phys_ram_base = CONFIG_PHYS_RAM_BASE; kernel_map.phys_addr = (uintptr_t)CONFIG_PHYS_RAM_BASE; - kernel_map.size = (uintptr_t)(&_end) - (uintptr_t)(&_sdata); + kernel_map.size = (uintptr_t)(&_end) - (uintptr_t)(&_start); kernel_map.va_kernel_xip_pa_offset = kernel_map.virt_addr - kernel_map.xiprom; #else diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h index 0b5f8f3e84f1..153d93468b77 100644 --- a/arch/s390/include/asm/uv.h +++ b/arch/s390/include/asm/uv.h @@ -441,7 +441,10 @@ static inline int share(unsigned long addr, u16 cmd) if (!uv_call(0, (u64)&uvcb)) return 0; - return -EINVAL; + pr_err("%s UVC failed (rc: 0x%x, rrc: 0x%x), possible hypervisor bug.\n", + uvcb.header.cmd == UVC_CMD_SET_SHARED_ACCESS ? "Share" : "Unshare", + uvcb.header.rc, uvcb.header.rrc); + panic("System security cannot be guaranteed unless the system panics now.\n"); } /* diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index bf8534218af3..e680c6bf0c9d 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -267,7 +267,12 @@ static inline unsigned long kvm_s390_get_gfn_end(struct kvm_memslots *slots) static inline u32 kvm_s390_get_gisa_desc(struct kvm *kvm) { - u32 gd = virt_to_phys(kvm->arch.gisa_int.origin); + u32 gd; + + if (!kvm->arch.gisa_int.origin) + return 0; + + gd = virt_to_phys(kvm->arch.gisa_int.origin); if (gd && sclp.has_gisaf) gd |= GISA_FORMAT1; diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 94e7b5a4fafe..4a68cb3eba78 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -2192,6 +2192,8 @@ void kvm_configure_mmu(bool enable_tdp, int tdp_forced_root_level, #define kvm_arch_has_private_mem(kvm) false #endif +#define kvm_arch_has_readonly_mem(kvm) (!(kvm)->arch.has_protected_state) + static inline u16 kvm_read_ldt(void) { u16 ldt; diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h index a053c1293975..68da67df304d 100644 --- a/arch/x86/include/asm/qspinlock.h +++ b/arch/x86/include/asm/qspinlock.h @@ -66,13 +66,15 @@ static inline bool vcpu_is_preempted(long cpu) #ifdef CONFIG_PARAVIRT /* - * virt_spin_lock_key - enables (by default) the virt_spin_lock() hijack. + * virt_spin_lock_key - disables by default the virt_spin_lock() hijack. * - * Native (and PV wanting native due to vCPU pinning) should disable this key. - * It is done in this backwards fashion to only have a single direction change, - * which removes ordering between native_pv_spin_init() and HV setup. + * Native (and PV wanting native due to vCPU pinning) should keep this key + * disabled. Native does not touch the key. + * + * When in a guest then native_pv_lock_init() enables the key first and + * KVM/XEN might conditionally disable it later in the boot process again. */ -DECLARE_STATIC_KEY_TRUE(virt_spin_lock_key); +DECLARE_STATIC_KEY_FALSE(virt_spin_lock_key); /* * Shortcut for the queued_spin_lock_slowpath() function that allows diff --git a/arch/x86/kernel/acpi/madt_wakeup.c b/arch/x86/kernel/acpi/madt_wakeup.c index 6cfe762be28b..d5ef6215583b 100644 --- a/arch/x86/kernel/acpi/madt_wakeup.c +++ b/arch/x86/kernel/acpi/madt_wakeup.c @@ -19,7 +19,7 @@ static u64 acpi_mp_wake_mailbox_paddr __ro_after_init; /* Virtual address of the Multiprocessor Wakeup Structure mailbox */ -static struct acpi_madt_multiproc_wakeup_mailbox *acpi_mp_wake_mailbox __ro_after_init; +static struct acpi_madt_multiproc_wakeup_mailbox *acpi_mp_wake_mailbox; static u64 acpi_mp_pgd __ro_after_init; static u64 acpi_mp_reset_vector_paddr __ro_after_init; diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.c b/arch/x86/kernel/cpu/mtrr/mtrr.c index 767bf1c71aad..2a2fc14955cd 100644 --- a/arch/x86/kernel/cpu/mtrr/mtrr.c +++ b/arch/x86/kernel/cpu/mtrr/mtrr.c @@ -609,7 +609,7 @@ void mtrr_save_state(void) { int first_cpu; - if (!mtrr_enabled()) + if (!mtrr_enabled() || !mtrr_state.have_fixed) return; first_cpu = cpumask_first(cpu_online_mask); diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 5358d43886ad..fec381533555 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -51,13 +51,12 @@ DEFINE_ASM_FUNC(pv_native_irq_enable, "sti", .noinstr.text); DEFINE_ASM_FUNC(pv_native_read_cr2, "mov %cr2, %rax", .noinstr.text); #endif -DEFINE_STATIC_KEY_TRUE(virt_spin_lock_key); +DEFINE_STATIC_KEY_FALSE(virt_spin_lock_key); void __init native_pv_lock_init(void) { - if (IS_ENABLED(CONFIG_PARAVIRT_SPINLOCKS) && - !boot_cpu_has(X86_FEATURE_HYPERVISOR)) - static_branch_disable(&virt_spin_lock_key); + if (boot_cpu_has(X86_FEATURE_HYPERVISOR)) + static_branch_enable(&virt_spin_lock_key); } static void native_tlb_remove_table(struct mmu_gather *tlb, void *table) diff --git a/arch/x86/kvm/hyperv.h b/arch/x86/kvm/hyperv.h index 923e64903da9..913bfc96959c 100644 --- a/arch/x86/kvm/hyperv.h +++ b/arch/x86/kvm/hyperv.h @@ -286,7 +286,6 @@ static inline int kvm_hv_hypercall(struct kvm_vcpu *vcpu) return HV_STATUS_ACCESS_DENIED; } static inline void kvm_hv_vcpu_purge_flush_tlb(struct kvm_vcpu *vcpu) {} -static inline void kvm_hv_free_pa_page(struct kvm *kvm) {} static inline bool kvm_hv_synic_has_vector(struct kvm_vcpu *vcpu, int vector) { return false; diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 4915acdbfcd8..5bb481aefcbc 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -351,10 +351,8 @@ static void kvm_recalculate_logical_map(struct kvm_apic_map *new, * reversing the LDR calculation to get cluster of APICs, i.e. no * additional work is required. */ - if (apic_x2apic_mode(apic)) { - WARN_ON_ONCE(ldr != kvm_apic_calc_x2apic_ldr(kvm_x2apic_id(apic))); + if (apic_x2apic_mode(apic)) return; - } if (WARN_ON_ONCE(!kvm_apic_map_get_logical_dest(new, ldr, &cluster, &mask))) { @@ -2966,18 +2964,28 @@ static int kvm_apic_state_fixup(struct kvm_vcpu *vcpu, struct kvm_lapic_state *s, bool set) { if (apic_x2apic_mode(vcpu->arch.apic)) { + u32 x2apic_id = kvm_x2apic_id(vcpu->arch.apic); u32 *id = (u32 *)(s->regs + APIC_ID); u32 *ldr = (u32 *)(s->regs + APIC_LDR); u64 icr; if (vcpu->kvm->arch.x2apic_format) { - if (*id != vcpu->vcpu_id) + if (*id != x2apic_id) return -EINVAL; } else { + /* + * Ignore the userspace value when setting APIC state. + * KVM's model is that the x2APIC ID is readonly, e.g. + * KVM only supports delivering interrupts to KVM's + * version of the x2APIC ID. However, for backwards + * compatibility, don't reject attempts to set a + * mismatched ID for userspace that hasn't opted into + * x2apic_format. + */ if (set) - *id >>= 24; + *id = x2apic_id; else - *id <<= 24; + *id = x2apic_id << 24; } /* @@ -2986,7 +2994,7 @@ static int kvm_apic_state_fixup(struct kvm_vcpu *vcpu, * split to ICR+ICR2 in userspace for backwards compatibility. */ if (set) { - *ldr = kvm_apic_calc_x2apic_ldr(*id); + *ldr = kvm_apic_calc_x2apic_ldr(x2apic_id); icr = __kvm_lapic_get_reg(s->regs, APIC_ICR) | (u64)__kvm_lapic_get_reg(s->regs, APIC_ICR2) << 32; diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index 532df12b43c5..714c517dd4b7 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -2276,7 +2276,7 @@ static int sev_gmem_post_populate(struct kvm *kvm, gfn_t gfn_start, kvm_pfn_t pf for (gfn = gfn_start, i = 0; gfn < gfn_start + npages; gfn++, i++) { struct sev_data_snp_launch_update fw_args = {0}; - bool assigned; + bool assigned = false; int level; ret = snp_lookup_rmpentry((u64)pfn + i, &assigned, &level); @@ -2290,9 +2290,10 @@ static int sev_gmem_post_populate(struct kvm *kvm, gfn_t gfn_start, kvm_pfn_t pf if (src) { void *vaddr = kmap_local_pfn(pfn + i); - ret = copy_from_user(vaddr, src + i * PAGE_SIZE, PAGE_SIZE); - if (ret) + if (copy_from_user(vaddr, src + i * PAGE_SIZE, PAGE_SIZE)) { + ret = -EFAULT; goto err; + } kunmap_local(vaddr); } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index ef3d3511e4af..70219e406987 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -427,8 +427,7 @@ static void kvm_user_return_msr_cpu_online(void) int kvm_set_user_return_msr(unsigned slot, u64 value, u64 mask) { - unsigned int cpu = smp_processor_id(); - struct kvm_user_return_msrs *msrs = per_cpu_ptr(user_return_msrs, cpu); + struct kvm_user_return_msrs *msrs = this_cpu_ptr(user_return_msrs); int err; value = (value & mask) | (msrs->values[slot].host & ~mask); @@ -450,8 +449,7 @@ EXPORT_SYMBOL_GPL(kvm_set_user_return_msr); static void drop_user_return_notifiers(void) { - unsigned int cpu = smp_processor_id(); - struct kvm_user_return_msrs *msrs = per_cpu_ptr(user_return_msrs, cpu); + struct kvm_user_return_msrs *msrs = this_cpu_ptr(user_return_msrs); if (msrs->registered) kvm_on_user_return(&msrs->urn); diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c index bfdf5f45b137..851ec8f1363a 100644 --- a/arch/x86/mm/pti.c +++ b/arch/x86/mm/pti.c @@ -241,7 +241,7 @@ static pmd_t *pti_user_pagetable_walk_pmd(unsigned long address) * * Returns a pointer to a PTE on success, or NULL on failure. */ -static pte_t *pti_user_pagetable_walk_pte(unsigned long address) +static pte_t *pti_user_pagetable_walk_pte(unsigned long address, bool late_text) { gfp_t gfp = (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO); pmd_t *pmd; @@ -251,10 +251,15 @@ static pte_t *pti_user_pagetable_walk_pte(unsigned long address) if (!pmd) return NULL; - /* We can't do anything sensible if we hit a large mapping. */ + /* Large PMD mapping found */ if (pmd_leaf(*pmd)) { - WARN_ON(1); - return NULL; + /* Clear the PMD if we hit a large mapping from the first round */ + if (late_text) { + set_pmd(pmd, __pmd(0)); + } else { + WARN_ON_ONCE(1); + return NULL; + } } if (pmd_none(*pmd)) { @@ -283,7 +288,7 @@ static void __init pti_setup_vsyscall(void) if (!pte || WARN_ON(level != PG_LEVEL_4K) || pte_none(*pte)) return; - target_pte = pti_user_pagetable_walk_pte(VSYSCALL_ADDR); + target_pte = pti_user_pagetable_walk_pte(VSYSCALL_ADDR, false); if (WARN_ON(!target_pte)) return; @@ -301,7 +306,7 @@ enum pti_clone_level { static void pti_clone_pgtable(unsigned long start, unsigned long end, - enum pti_clone_level level) + enum pti_clone_level level, bool late_text) { unsigned long addr; @@ -390,7 +395,7 @@ pti_clone_pgtable(unsigned long start, unsigned long end, return; /* Allocate PTE in the user page-table */ - target_pte = pti_user_pagetable_walk_pte(addr); + target_pte = pti_user_pagetable_walk_pte(addr, late_text); if (WARN_ON(!target_pte)) return; @@ -452,7 +457,7 @@ static void __init pti_clone_user_shared(void) phys_addr_t pa = per_cpu_ptr_to_phys((void *)va); pte_t *target_pte; - target_pte = pti_user_pagetable_walk_pte(va); + target_pte = pti_user_pagetable_walk_pte(va, false); if (WARN_ON(!target_pte)) return; @@ -475,7 +480,7 @@ static void __init pti_clone_user_shared(void) start = CPU_ENTRY_AREA_BASE; end = start + (PAGE_SIZE * CPU_ENTRY_AREA_PAGES); - pti_clone_pgtable(start, end, PTI_CLONE_PMD); + pti_clone_pgtable(start, end, PTI_CLONE_PMD, false); } #endif /* CONFIG_X86_64 */ @@ -492,11 +497,11 @@ static void __init pti_setup_espfix64(void) /* * Clone the populated PMDs of the entry text and force it RO. */ -static void pti_clone_entry_text(void) +static void pti_clone_entry_text(bool late) { pti_clone_pgtable((unsigned long) __entry_text_start, (unsigned long) __entry_text_end, - PTI_LEVEL_KERNEL_IMAGE); + PTI_LEVEL_KERNEL_IMAGE, late); } /* @@ -571,7 +576,7 @@ static void pti_clone_kernel_text(void) * pti_set_kernel_image_nonglobal() did to clear the * global bit. */ - pti_clone_pgtable(start, end_clone, PTI_LEVEL_KERNEL_IMAGE); + pti_clone_pgtable(start, end_clone, PTI_LEVEL_KERNEL_IMAGE, false); /* * pti_clone_pgtable() will set the global bit in any PMDs @@ -638,8 +643,15 @@ void __init pti_init(void) /* Undo all global bits from the init pagetables in head_64.S: */ pti_set_kernel_image_nonglobal(); + /* Replace some of the global bits just for shared entry text: */ - pti_clone_entry_text(); + /* + * This is very early in boot. Device and Late initcalls can do + * modprobe before free_initmem() and mark_readonly(). This + * pti_clone_entry_text() allows those user-mode-helpers to function, + * but notably the text is still RW. + */ + pti_clone_entry_text(false); pti_setup_espfix64(); pti_setup_vsyscall(); } @@ -656,10 +668,11 @@ void pti_finalize(void) if (!boot_cpu_has(X86_FEATURE_PTI)) return; /* - * We need to clone everything (again) that maps parts of the - * kernel image. + * This is after free_initmem() (all initcalls are done) and we've done + * mark_readonly(). Text is now NX which might've split some PMDs + * relative to the early clone. */ - pti_clone_entry_text(); + pti_clone_entry_text(true); pti_clone_kernel_text(); debug_checkwx_user(); |