diff options
Diffstat (limited to 'arch/arm64')
31 files changed, 143 insertions, 73 deletions
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms index 1aa8b7073218..54e3910e8b9b 100644 --- a/arch/arm64/Kconfig.platforms +++ b/arch/arm64/Kconfig.platforms @@ -161,7 +161,6 @@ config ARCH_MEDIATEK config ARCH_MESON bool "Amlogic Platforms" - select COMMON_CLK help This enables support for the arm64 based Amlogic SoCs such as the s905, S905X/D, S912, A113X/D or S905X/D2 diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts index d13980ed7a79..7ec5ac850a0d 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts @@ -69,7 +69,7 @@ pinctrl-0 = <&emac_rgmii_pins>; phy-supply = <®_gmac_3v3>; phy-handle = <&ext_rgmii_phy>; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; status = "okay"; }; diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts b/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts index 52ebe371df26..561eec21b4de 100644 --- a/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts +++ b/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts @@ -134,23 +134,23 @@ type = "critical"; }; }; - }; - cpu_cooling_maps: cooling-maps { - map0 { - trip = <&cpu_passive>; - cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; + cpu_cooling_maps: cooling-maps { + map0 { + trip = <&cpu_passive>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; - map1 { - trip = <&cpu_hot>; - cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + map1 { + trip = <&cpu_hot>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; }; }; }; diff --git a/arch/arm64/boot/dts/apple/t8103-j274.dts b/arch/arm64/boot/dts/apple/t8103-j274.dts index 33a80f9501dc..02c36301e985 100644 --- a/arch/arm64/boot/dts/apple/t8103-j274.dts +++ b/arch/arm64/boot/dts/apple/t8103-j274.dts @@ -60,7 +60,7 @@ &port02 { bus-range = <3 3>; - ethernet0: pci@0,0 { + ethernet0: ethernet@0,0 { reg = <0x30000 0x0 0x0 0x0 0x0>; /* To be filled by the loader */ local-mac-address = [00 10 18 00 00 00]; diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi index fc8b2bb06ffe..8b61e7fd3e9c 100644 --- a/arch/arm64/boot/dts/apple/t8103.dtsi +++ b/arch/arm64/boot/dts/apple/t8103.dtsi @@ -7,6 +7,7 @@ * Copyright The Asahi Linux Contributors */ +#include <dt-bindings/gpio/gpio.h> #include <dt-bindings/interrupt-controller/apple-aic.h> #include <dt-bindings/interrupt-controller/irq.h> #include <dt-bindings/pinctrl/apple.h> @@ -143,6 +144,7 @@ apple,npins = <212>; interrupt-controller; + #interrupt-cells = <2>; interrupt-parent = <&aic>; interrupts = <AIC_IRQ 190 IRQ_TYPE_LEVEL_HIGH>, <AIC_IRQ 191 IRQ_TYPE_LEVEL_HIGH>, @@ -169,6 +171,7 @@ apple,npins = <42>; interrupt-controller; + #interrupt-cells = <2>; interrupt-parent = <&aic>; interrupts = <AIC_IRQ 268 IRQ_TYPE_LEVEL_HIGH>, <AIC_IRQ 269 IRQ_TYPE_LEVEL_HIGH>, @@ -189,6 +192,7 @@ apple,npins = <23>; interrupt-controller; + #interrupt-cells = <2>; interrupt-parent = <&aic>; interrupts = <AIC_IRQ 330 IRQ_TYPE_LEVEL_HIGH>, <AIC_IRQ 331 IRQ_TYPE_LEVEL_HIGH>, @@ -209,6 +213,7 @@ apple,npins = <16>; interrupt-controller; + #interrupt-cells = <2>; interrupt-parent = <&aic>; interrupts = <AIC_IRQ 391 IRQ_TYPE_LEVEL_HIGH>, <AIC_IRQ 392 IRQ_TYPE_LEVEL_HIGH>, @@ -281,7 +286,7 @@ port00: pci@0,0 { device_type = "pci"; reg = <0x0 0x0 0x0 0x0 0x0>; - reset-gpios = <&pinctrl_ap 152 0>; + reset-gpios = <&pinctrl_ap 152 GPIO_ACTIVE_LOW>; max-link-speed = <2>; #address-cells = <3>; @@ -301,7 +306,7 @@ port01: pci@1,0 { device_type = "pci"; reg = <0x800 0x0 0x0 0x0 0x0>; - reset-gpios = <&pinctrl_ap 153 0>; + reset-gpios = <&pinctrl_ap 153 GPIO_ACTIVE_LOW>; max-link-speed = <2>; #address-cells = <3>; @@ -321,7 +326,7 @@ port02: pci@2,0 { device_type = "pci"; reg = <0x1000 0x0 0x0 0x0 0x0>; - reset-gpios = <&pinctrl_ap 33 0>; + reset-gpios = <&pinctrl_ap 33 GPIO_ACTIVE_LOW>; max-link-speed = <1>; #address-cells = <3>; diff --git a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi index 3e4727344b4a..a960c0bc2dba 100644 --- a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi +++ b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi @@ -296,8 +296,7 @@ pinctrl-0 = <&ufs_rst_n &ufs_refclk_out>; phys = <&ufs_0_phy>; phy-names = "ufs-phy"; - samsung,sysreg = <&syscon_fsys2>; - samsung,ufs-shareability-reg-offset = <0x710>; + samsung,sysreg = <&syscon_fsys2 0x710>; status = "disabled"; }; }; diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a-ten64.dts b/arch/arm64/boot/dts/freescale/fsl-ls1088a-ten64.dts index 3063851c2fb9..d3f03dcbb8c3 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-ten64.dts +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-ten64.dts @@ -38,7 +38,6 @@ powerdn { label = "External Power Down"; gpios = <&gpio1 17 GPIO_ACTIVE_LOW>; - interrupts = <&gpio1 17 IRQ_TYPE_EDGE_FALLING>; linux,code = <KEY_POWER>; }; @@ -46,7 +45,6 @@ admin { label = "ADMIN button"; gpios = <&gpio3 8 GPIO_ACTIVE_HIGH>; - interrupts = <&gpio3 8 IRQ_TYPE_EDGE_RISING>; linux,code = <KEY_WPS_BUTTON>; }; }; diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a-bluebox3.dts b/arch/arm64/boot/dts/freescale/fsl-lx2160a-bluebox3.dts index b21be03da0af..042c486bdda2 100644 --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a-bluebox3.dts +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-bluebox3.dts @@ -386,6 +386,8 @@ reg = <2>; ethernet = <&dpmac17>; phy-mode = "rgmii-id"; + rx-internal-delay-ps = <2000>; + tx-internal-delay-ps = <2000>; fixed-link { speed = <1000>; @@ -529,6 +531,8 @@ reg = <2>; ethernet = <&dpmac18>; phy-mode = "rgmii-id"; + rx-internal-delay-ps = <2000>; + tx-internal-delay-ps = <2000>; fixed-link { speed = <1000>; diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi index dc8661ebd1f6..2433e6f2eda8 100644 --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi @@ -719,7 +719,7 @@ clock-names = "i2c"; clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(16)>; - scl-gpio = <&gpio2 15 GPIO_ACTIVE_HIGH>; + scl-gpios = <&gpio2 15 GPIO_ACTIVE_HIGH>; status = "disabled"; }; @@ -768,7 +768,7 @@ clock-names = "i2c"; clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(16)>; - scl-gpio = <&gpio2 16 GPIO_ACTIVE_HIGH>; + scl-gpios = <&gpio2 16 GPIO_ACTIVE_HIGH>; status = "disabled"; }; diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi index 972766b67a15..71bf497f99c2 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi @@ -524,8 +524,6 @@ <&clk IMX8MQ_VIDEO_PLL1>, <&clk IMX8MQ_VIDEO_PLL1_OUT>; assigned-clock-rates = <0>, <0>, <0>, <594000000>; - interconnects = <&noc IMX8MQ_ICM_LCDIF &noc IMX8MQ_ICS_DRAM>; - interconnect-names = "dram"; status = "disabled"; port@0 { diff --git a/arch/arm64/boot/dts/rockchip/rk3308-roc-cc.dts b/arch/arm64/boot/dts/rockchip/rk3308-roc-cc.dts index 665b2e69455d..ea6820902ede 100644 --- a/arch/arm64/boot/dts/rockchip/rk3308-roc-cc.dts +++ b/arch/arm64/boot/dts/rockchip/rk3308-roc-cc.dts @@ -97,7 +97,7 @@ regulator-max-microvolt = <3300000>; regulator-always-on; regulator-boot-on; - vim-supply = <&vcc_io>; + vin-supply = <&vcc_io>; }; vdd_core: vdd-core { diff --git a/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi index d5c7648c841d..f1fcc6b5b402 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi @@ -705,7 +705,6 @@ &sdhci { bus-width = <8>; mmc-hs400-1_8v; - mmc-hs400-enhanced-strobe; non-removable; status = "okay"; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts b/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts index 63c7681843da..b6ac00f64613 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts @@ -276,6 +276,7 @@ clock-output-names = "xin32k", "rk808-clkout2"; pinctrl-names = "default"; pinctrl-0 = <&pmic_int_l>; + rockchip,system-power-controller; vcc1-supply = <&vcc5v0_sys>; vcc2-supply = <&vcc5v0_sys>; vcc3-supply = <&vcc5v0_sys>; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts b/arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts index 7c93f840bc64..e890166e7fd4 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts @@ -55,7 +55,7 @@ regulator-boot-on; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; - vim-supply = <&vcc3v3_sys>; + vin-supply = <&vcc3v3_sys>; }; vcc3v3_sys: vcc3v3-sys { diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi index 98136c88fa49..6a434be62819 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi @@ -502,7 +502,7 @@ status = "okay"; bt656-supply = <&vcc_3v0>; - audio-supply = <&vcc_3v0>; + audio-supply = <&vcc1v8_codec>; sdmmc-supply = <&vcc_sdio>; gpio1830-supply = <&vcc_3v0>; }; diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h index d3e1825337be..ad55079abe47 100644 --- a/arch/arm64/include/asm/efi.h +++ b/arch/arm64/include/asm/efi.h @@ -14,7 +14,6 @@ #ifdef CONFIG_EFI extern void efi_init(void); -extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt); #else #define efi_init() #endif diff --git a/arch/arm64/include/asm/ftrace.h b/arch/arm64/include/asm/ftrace.h index 347b0cc68f07..1494cfa8639b 100644 --- a/arch/arm64/include/asm/ftrace.h +++ b/arch/arm64/include/asm/ftrace.h @@ -12,6 +12,17 @@ #define HAVE_FUNCTION_GRAPH_FP_TEST +/* + * HAVE_FUNCTION_GRAPH_RET_ADDR_PTR means that the architecture can provide a + * "return address pointer" which can be used to uniquely identify a return + * address which has been overwritten. + * + * On arm64 we use the address of the caller's frame record, which remains the + * same for the lifetime of the instrumented function, unlike the return + * address in the LR. + */ +#define HAVE_FUNCTION_GRAPH_RET_ADDR_PTR + #ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS #define ARCH_SUPPORTS_FTRACE_OPS 1 #else diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h index a39fcf318c77..01d47c5886dc 100644 --- a/arch/arm64/include/asm/kvm_arm.h +++ b/arch/arm64/include/asm/kvm_arm.h @@ -91,7 +91,7 @@ #define HCR_HOST_VHE_FLAGS (HCR_RW | HCR_TGE | HCR_E2H) /* TCR_EL2 Registers bits */ -#define TCR_EL2_RES1 ((1 << 31) | (1 << 23)) +#define TCR_EL2_RES1 ((1U << 31) | (1 << 23)) #define TCR_EL2_TBI (1 << 20) #define TCR_EL2_PS_SHIFT 16 #define TCR_EL2_PS_MASK (7 << TCR_EL2_PS_SHIFT) @@ -276,7 +276,7 @@ #define CPTR_EL2_TFP_SHIFT 10 /* Hyp Coprocessor Trap Register */ -#define CPTR_EL2_TCPAC (1 << 31) +#define CPTR_EL2_TCPAC (1U << 31) #define CPTR_EL2_TAM (1 << 30) #define CPTR_EL2_TTA (1 << 20) #define CPTR_EL2_TFP (1 << CPTR_EL2_TFP_SHIFT) diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h index 8433a2058eb1..237224484d0f 100644 --- a/arch/arm64/include/asm/pgalloc.h +++ b/arch/arm64/include/asm/pgalloc.h @@ -76,7 +76,7 @@ static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t ptep, static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, pte_t *ptep) { - VM_BUG_ON(mm != &init_mm); + VM_BUG_ON(mm && mm != &init_mm); __pmd_populate(pmdp, __pa(ptep), PMD_TYPE_TABLE | PMD_TABLE_UXN); } diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h index a4e046ef4568..6564a01cc085 100644 --- a/arch/arm64/include/asm/stacktrace.h +++ b/arch/arm64/include/asm/stacktrace.h @@ -47,9 +47,6 @@ struct stack_info { * @prev_type: The type of stack this frame record was on, or a synthetic * value of STACK_TYPE_UNKNOWN. This is used to detect a * transition from one stack to another. - * - * @graph: When FUNCTION_GRAPH_TRACER is selected, holds the index of a - * replacement lr value in the ftrace graph stack. */ struct stackframe { unsigned long fp; @@ -57,9 +54,6 @@ struct stackframe { DECLARE_BITMAP(stacks_done, __NR_STACK_TYPES); unsigned long prev_fp; enum stack_type prev_type; -#ifdef CONFIG_FUNCTION_GRAPH_TRACER - int graph; -#endif #ifdef CONFIG_KRETPROBES struct llist_node *kr_cur; #endif diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h index 6e2e0b7031ab..3a5ff5e20586 100644 --- a/arch/arm64/include/asm/uaccess.h +++ b/arch/arm64/include/asm/uaccess.h @@ -281,12 +281,22 @@ do { \ (x) = (__force __typeof__(*(ptr)))__gu_val; \ } while (0) +/* + * We must not call into the scheduler between uaccess_ttbr0_enable() and + * uaccess_ttbr0_disable(). As `x` and `ptr` could contain blocking functions, + * we must evaluate these outside of the critical section. + */ #define __raw_get_user(x, ptr, err) \ do { \ + __typeof__(*(ptr)) __user *__rgu_ptr = (ptr); \ + __typeof__(x) __rgu_val; \ __chk_user_ptr(ptr); \ + \ uaccess_ttbr0_enable(); \ - __raw_get_mem("ldtr", x, ptr, err); \ + __raw_get_mem("ldtr", __rgu_val, __rgu_ptr, err); \ uaccess_ttbr0_disable(); \ + \ + (x) = __rgu_val; \ } while (0) #define __get_user_error(x, ptr, err) \ @@ -310,14 +320,22 @@ do { \ #define get_user __get_user +/* + * We must not call into the scheduler between __uaccess_enable_tco_async() and + * __uaccess_disable_tco_async(). As `dst` and `src` may contain blocking + * functions, we must evaluate these outside of the critical section. + */ #define __get_kernel_nofault(dst, src, type, err_label) \ do { \ + __typeof__(dst) __gkn_dst = (dst); \ + __typeof__(src) __gkn_src = (src); \ int __gkn_err = 0; \ \ __uaccess_enable_tco_async(); \ - __raw_get_mem("ldr", *((type *)(dst)), \ - (__force type *)(src), __gkn_err); \ + __raw_get_mem("ldr", *((type *)(__gkn_dst)), \ + (__force type *)(__gkn_src), __gkn_err); \ __uaccess_disable_tco_async(); \ + \ if (unlikely(__gkn_err)) \ goto err_label; \ } while (0) @@ -351,11 +369,19 @@ do { \ } \ } while (0) +/* + * We must not call into the scheduler between uaccess_ttbr0_enable() and + * uaccess_ttbr0_disable(). As `x` and `ptr` could contain blocking functions, + * we must evaluate these outside of the critical section. + */ #define __raw_put_user(x, ptr, err) \ do { \ - __chk_user_ptr(ptr); \ + __typeof__(*(ptr)) __user *__rpu_ptr = (ptr); \ + __typeof__(*(ptr)) __rpu_val = (x); \ + __chk_user_ptr(__rpu_ptr); \ + \ uaccess_ttbr0_enable(); \ - __raw_put_mem("sttr", x, ptr, err); \ + __raw_put_mem("sttr", __rpu_val, __rpu_ptr, err); \ uaccess_ttbr0_disable(); \ } while (0) @@ -380,14 +406,22 @@ do { \ #define put_user __put_user +/* + * We must not call into the scheduler between __uaccess_enable_tco_async() and + * __uaccess_disable_tco_async(). As `dst` and `src` may contain blocking + * functions, we must evaluate these outside of the critical section. + */ #define __put_kernel_nofault(dst, src, type, err_label) \ do { \ + __typeof__(dst) __pkn_dst = (dst); \ + __typeof__(src) __pkn_src = (src); \ int __pkn_err = 0; \ \ __uaccess_enable_tco_async(); \ - __raw_put_mem("str", *((type *)(src)), \ - (__force type *)(dst), __pkn_err); \ + __raw_put_mem("str", *((type *)(__pkn_src)), \ + (__force type *)(__pkn_dst), __pkn_err); \ __uaccess_disable_tco_async(); \ + \ if (unlikely(__pkn_err)) \ goto err_label; \ } while(0) diff --git a/arch/arm64/kernel/entry-ftrace.S b/arch/arm64/kernel/entry-ftrace.S index b3e4f9a088b1..8cf970d219f5 100644 --- a/arch/arm64/kernel/entry-ftrace.S +++ b/arch/arm64/kernel/entry-ftrace.S @@ -77,11 +77,17 @@ .endm SYM_CODE_START(ftrace_regs_caller) +#ifdef BTI_C + BTI_C +#endif ftrace_regs_entry 1 b ftrace_common SYM_CODE_END(ftrace_regs_caller) SYM_CODE_START(ftrace_caller) +#ifdef BTI_C + BTI_C +#endif ftrace_regs_entry 0 b ftrace_common SYM_CODE_END(ftrace_caller) diff --git a/arch/arm64/kernel/ftrace.c b/arch/arm64/kernel/ftrace.c index fc62dfe73f93..4506c4a90ac1 100644 --- a/arch/arm64/kernel/ftrace.c +++ b/arch/arm64/kernel/ftrace.c @@ -244,8 +244,6 @@ void arch_ftrace_update_code(int command) * on the way back to parent. For this purpose, this function is called * in _mcount() or ftrace_caller() to replace return address (*parent) on * the call stack to return_to_handler. - * - * Note that @frame_pointer is used only for sanity check later. */ void prepare_ftrace_return(unsigned long self_addr, unsigned long *parent, unsigned long frame_pointer) @@ -263,8 +261,10 @@ void prepare_ftrace_return(unsigned long self_addr, unsigned long *parent, */ old = *parent; - if (!function_graph_enter(old, self_addr, frame_pointer, NULL)) + if (!function_graph_enter(old, self_addr, frame_pointer, + (void *)frame_pointer)) { *parent = return_hooker; + } } #ifdef CONFIG_DYNAMIC_FTRACE diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c index 1038494135c8..6fb31c117ebe 100644 --- a/arch/arm64/kernel/machine_kexec.c +++ b/arch/arm64/kernel/machine_kexec.c @@ -147,7 +147,7 @@ int machine_kexec_post_load(struct kimage *kimage) if (rc) return rc; kimage->arch.ttbr1 = __pa(trans_pgd); - kimage->arch.zero_page = __pa(empty_zero_page); + kimage->arch.zero_page = __pa_symbol(empty_zero_page); reloc_size = __relocate_new_kernel_end - __relocate_new_kernel_start; memcpy(reloc_code, __relocate_new_kernel_start, reloc_size); diff --git a/arch/arm64/kernel/machine_kexec_file.c b/arch/arm64/kernel/machine_kexec_file.c index 63634b4d72c1..59c648d51848 100644 --- a/arch/arm64/kernel/machine_kexec_file.c +++ b/arch/arm64/kernel/machine_kexec_file.c @@ -149,6 +149,7 @@ int load_other_segments(struct kimage *image, initrd_len, cmdline, 0); if (!dtb) { pr_err("Preparing for new dtb failed\n"); + ret = -EINVAL; goto out_err; } diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c index c30624fff6ac..94f83cd44e50 100644 --- a/arch/arm64/kernel/stacktrace.c +++ b/arch/arm64/kernel/stacktrace.c @@ -38,9 +38,6 @@ void start_backtrace(struct stackframe *frame, unsigned long fp, { frame->fp = fp; frame->pc = pc; -#ifdef CONFIG_FUNCTION_GRAPH_TRACER - frame->graph = 0; -#endif #ifdef CONFIG_KRETPROBES frame->kr_cur = NULL; #endif @@ -116,20 +113,23 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame) frame->prev_fp = fp; frame->prev_type = info.type; + frame->pc = ptrauth_strip_insn_pac(frame->pc); + #ifdef CONFIG_FUNCTION_GRAPH_TRACER if (tsk->ret_stack && - (ptrauth_strip_insn_pac(frame->pc) == (unsigned long)return_to_handler)) { - struct ftrace_ret_stack *ret_stack; + (frame->pc == (unsigned long)return_to_handler)) { + unsigned long orig_pc; /* * This is a case where function graph tracer has * modified a return address (LR) in a stack frame * to hook a function return. * So replace it to an original value. */ - ret_stack = ftrace_graph_get_ret_stack(tsk, frame->graph++); - if (WARN_ON_ONCE(!ret_stack)) + orig_pc = ftrace_graph_ret_addr(tsk, NULL, frame->pc, + (void *)frame->fp); + if (WARN_ON_ONCE(frame->pc == orig_pc)) return -EINVAL; - frame->pc = ret_stack->ret; + frame->pc = orig_pc; } #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ #ifdef CONFIG_KRETPROBES @@ -137,8 +137,6 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame) frame->pc = kretprobe_find_ret_addr(tsk, (void *)frame->fp, &frame->kr_cur); #endif - frame->pc = ptrauth_strip_insn_pac(frame->pc); - return 0; } NOKPROBE_SYMBOL(unwind_frame); diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 2f03cbfefe67..e4727dc771bf 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -223,7 +223,14 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) r = 1; break; case KVM_CAP_NR_VCPUS: - r = num_online_cpus(); + /* + * ARM64 treats KVM_CAP_NR_CPUS differently from all other + * architectures, as it does not always bound it to + * KVM_CAP_MAX_VCPUS. It should not matter much because + * this is just an advisory value. + */ + r = min_t(unsigned int, num_online_cpus(), + kvm_arm_default_max_vcpus()); break; case KVM_CAP_MAX_VCPUS: case KVM_CAP_MAX_VCPU_ID: diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h index 7a0af1d39303..96c5f3fb7838 100644 --- a/arch/arm64/kvm/hyp/include/hyp/switch.h +++ b/arch/arm64/kvm/hyp/include/hyp/switch.h @@ -403,6 +403,8 @@ typedef bool (*exit_handler_fn)(struct kvm_vcpu *, u64 *); static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu); +static void early_exit_filter(struct kvm_vcpu *vcpu, u64 *exit_code); + /* * Allow the hypervisor to handle the exit with an exit handler if it has one. * @@ -429,6 +431,18 @@ static inline bool kvm_hyp_handle_exit(struct kvm_vcpu *vcpu, u64 *exit_code) */ static inline bool fixup_guest_exit(struct kvm_vcpu *vcpu, u64 *exit_code) { + /* + * Save PSTATE early so that we can evaluate the vcpu mode + * early on. + */ + vcpu->arch.ctxt.regs.pstate = read_sysreg_el2(SYS_SPSR); + + /* + * Check whether we want to repaint the state one way or + * another. + */ + early_exit_filter(vcpu, exit_code); + if (ARM_EXCEPTION_CODE(*exit_code) != ARM_EXCEPTION_IRQ) vcpu->arch.fault.esr_el2 = read_sysreg_el2(SYS_ESR); diff --git a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h index de7e14c862e6..7ecca8b07851 100644 --- a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h +++ b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h @@ -70,7 +70,12 @@ static inline void __sysreg_save_el1_state(struct kvm_cpu_context *ctxt) static inline void __sysreg_save_el2_return_state(struct kvm_cpu_context *ctxt) { ctxt->regs.pc = read_sysreg_el2(SYS_ELR); - ctxt->regs.pstate = read_sysreg_el2(SYS_SPSR); + /* + * Guest PSTATE gets saved at guest fixup time in all + * cases. We still need to handle the nVHE host side here. + */ + if (!has_vhe() && ctxt->__hyp_running_vcpu) + ctxt->regs.pstate = read_sysreg_el2(SYS_SPSR); if (cpus_have_final_cap(ARM64_HAS_RAS_EXTN)) ctxt_sys_reg(ctxt, DISR_EL1) = read_sysreg_s(SYS_VDISR_EL2); diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c index c0e3fed26d93..d13115a12434 100644 --- a/arch/arm64/kvm/hyp/nvhe/switch.c +++ b/arch/arm64/kvm/hyp/nvhe/switch.c @@ -233,7 +233,7 @@ static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu) * Returns false if the guest ran in AArch32 when it shouldn't have, and * thus should exit to the host, or true if a the guest run loop can continue. */ -static bool handle_aarch32_guest(struct kvm_vcpu *vcpu, u64 *exit_code) +static void early_exit_filter(struct kvm_vcpu *vcpu, u64 *exit_code) { struct kvm *kvm = kern_hyp_va(vcpu->kvm); @@ -248,10 +248,7 @@ static bool handle_aarch32_guest(struct kvm_vcpu *vcpu, u64 *exit_code) vcpu->arch.target = -1; *exit_code &= BIT(ARM_EXIT_WITH_SERROR_BIT); *exit_code |= ARM_EXCEPTION_IL; - return false; } - - return true; } /* Switch to the guest for legacy non-VHE systems */ @@ -316,9 +313,6 @@ int __kvm_vcpu_run(struct kvm_vcpu *vcpu) /* Jump in the fire! */ exit_code = __guest_enter(vcpu); - if (unlikely(!handle_aarch32_guest(vcpu, &exit_code))) - break; - /* And we're baaack! */ } while (fixup_guest_exit(vcpu, &exit_code)); diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c index 5a2cb5d9bc4b..fbb26b93c347 100644 --- a/arch/arm64/kvm/hyp/vhe/switch.c +++ b/arch/arm64/kvm/hyp/vhe/switch.c @@ -112,6 +112,10 @@ static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu) return hyp_exit_handlers; } +static void early_exit_filter(struct kvm_vcpu *vcpu, u64 *exit_code) +{ +} + /* Switch to the guest for VHE systems running in EL2 */ static int __kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu) { |