diff options
Diffstat (limited to 'arch/x86/platform')
| -rw-r--r-- | arch/x86/platform/efi/Makefile | 1 | ||||
| -rw-r--r-- | arch/x86/platform/efi/efi.c | 3 | ||||
| -rw-r--r-- | arch/x86/platform/efi/efi_32.c | 9 | ||||
| -rw-r--r-- | arch/x86/platform/efi/efi_64.c | 9 | ||||
| -rw-r--r-- | arch/x86/platform/efi/quirks.c | 137 | ||||
| -rw-r--r-- | arch/x86/platform/intel-mid/device_libs/platform_max7315.c | 6 | ||||
| -rw-r--r-- | arch/x86/platform/olpc/olpc-xo1-pm.c | 2 | ||||
| -rw-r--r-- | arch/x86/platform/uv/tlb_uv.c | 84 | ||||
| -rw-r--r-- | arch/x86/platform/uv/uv_irq.c | 18 |
9 files changed, 210 insertions, 59 deletions
diff --git a/arch/x86/platform/efi/Makefile b/arch/x86/platform/efi/Makefile index f1d83b3..2f56e1e 100644 --- a/arch/x86/platform/efi/Makefile +++ b/arch/x86/platform/efi/Makefile @@ -1,4 +1,5 @@ OBJECT_FILES_NON_STANDARD_efi_thunk_$(BITS).o := y +OBJECT_FILES_NON_STANDARD_efi_stub_$(BITS).o := y obj-$(CONFIG_EFI) += quirks.o efi.o efi_$(BITS).o efi_stub_$(BITS).o obj-$(CONFIG_EARLY_PRINTK_EFI) += early_printk.o diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 43b96f5..f084d87 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -1014,7 +1014,6 @@ static void __init __efi_enter_virtual_mode(void) * necessary relocation fixups for the new virtual addresses. */ efi_runtime_update_mappings(); - efi_dump_pagetable(); /* clean DUMMY object */ efi_delete_dummy_variable(); @@ -1029,6 +1028,8 @@ void __init efi_enter_virtual_mode(void) kexec_enter_virtual_mode(); else __efi_enter_virtual_mode(); + + efi_dump_pagetable(); } /* diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c index 3481268..52f7faa 100644 --- a/arch/x86/platform/efi/efi_32.c +++ b/arch/x86/platform/efi/efi_32.c @@ -44,7 +44,14 @@ int __init efi_alloc_page_tables(void) } void efi_sync_low_kernel_mappings(void) {} -void __init efi_dump_pagetable(void) {} + +void __init efi_dump_pagetable(void) +{ +#ifdef CONFIG_EFI_PGT_DUMP + ptdump_walk_pgd_level(NULL, swapper_pg_dir); +#endif +} + int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages) { return 0; diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index eb8dff1..9bf72f5 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -80,7 +80,7 @@ pgd_t * __init efi_call_phys_prolog(void) int n_pgds, i, j; if (!efi_enabled(EFI_OLD_MEMMAP)) { - save_pgd = (pgd_t *)read_cr3(); + save_pgd = (pgd_t *)__read_cr3(); write_cr3((unsigned long)efi_scratch.efi_pgt); goto out; } @@ -589,7 +589,10 @@ void __init efi_runtime_update_mappings(void) void __init efi_dump_pagetable(void) { #ifdef CONFIG_EFI_PGT_DUMP - ptdump_walk_pgd_level(NULL, efi_pgd); + if (efi_enabled(EFI_OLD_MEMMAP)) + ptdump_walk_pgd_level(NULL, swapper_pg_dir); + else + ptdump_walk_pgd_level(NULL, efi_pgd); #endif } @@ -646,7 +649,7 @@ efi_status_t efi_thunk_set_virtual_address_map( efi_sync_low_kernel_mappings(); local_irq_save(flags); - efi_scratch.prev_cr3 = read_cr3(); + efi_scratch.prev_cr3 = __read_cr3(); write_cr3((unsigned long)efi_scratch.efi_pgt); __flush_tlb_all(); diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c index e0cf95a..8a99a2e 100644 --- a/arch/x86/platform/efi/quirks.c +++ b/arch/x86/platform/efi/quirks.c @@ -15,12 +15,66 @@ #include <asm/e820/api.h> #include <asm/efi.h> #include <asm/uv/uv.h> +#include <asm/cpu_device_id.h> #define EFI_MIN_RESERVE 5120 #define EFI_DUMMY_GUID \ EFI_GUID(0x4424ac57, 0xbe4b, 0x47dd, 0x9e, 0x97, 0xed, 0x50, 0xf0, 0x9f, 0x92, 0xa9) +#define QUARK_CSH_SIGNATURE 0x5f435348 /* _CSH */ +#define QUARK_SECURITY_HEADER_SIZE 0x400 + +/* + * Header prepended to the standard EFI capsule on Quark systems the are based + * on Intel firmware BSP. + * @csh_signature: Unique identifier to sanity check signed module + * presence ("_CSH"). + * @version: Current version of CSH used. Should be one for Quark A0. + * @modulesize: Size of the entire module including the module header + * and payload. + * @security_version_number_index: Index of SVN to use for validation of signed + * module. + * @security_version_number: Used to prevent against roll back of modules. + * @rsvd_module_id: Currently unused for Clanton (Quark). + * @rsvd_module_vendor: Vendor Identifier. For Intel products value is + * 0x00008086. + * @rsvd_date: BCD representation of build date as yyyymmdd, where + * yyyy=4 digit year, mm=1-12, dd=1-31. + * @headersize: Total length of the header including including any + * padding optionally added by the signing tool. + * @hash_algo: What Hash is used in the module signing. + * @cryp_algo: What Crypto is used in the module signing. + * @keysize: Total length of the key data including including any + * padding optionally added by the signing tool. + * @signaturesize: Total length of the signature including including any + * padding optionally added by the signing tool. + * @rsvd_next_header: 32-bit pointer to the next Secure Boot Module in the + * chain, if there is a next header. + * @rsvd: Reserved, padding structure to required size. + * + * See also QuartSecurityHeader_t in + * Quark_EDKII_v1.2.1.1/QuarkPlatformPkg/Include/QuarkBootRom.h + * from https://downloadcenter.intel.com/download/23197/Intel-Quark-SoC-X1000-Board-Support-Package-BSP + */ +struct quark_security_header { + u32 csh_signature; + u32 version; + u32 modulesize; + u32 security_version_number_index; + u32 security_version_number; + u32 rsvd_module_id; + u32 rsvd_module_vendor; + u32 rsvd_date; + u32 headersize; + u32 hash_algo; + u32 cryp_algo; + u32 keysize; + u32 signaturesize; + u32 rsvd_next_header; + u32 rsvd[2]; +}; + static efi_char16_t efi_dummy_name[6] = { 'D', 'U', 'M', 'M', 'Y', 0 }; static bool efi_no_storage_paranoia; @@ -504,3 +558,86 @@ bool efi_poweroff_required(void) { return acpi_gbl_reduced_hardware || acpi_no_s5; } + +#ifdef CONFIG_EFI_CAPSULE_QUIRK_QUARK_CSH + +static int qrk_capsule_setup_info(struct capsule_info *cap_info, void **pkbuff, + size_t hdr_bytes) +{ + struct quark_security_header *csh = *pkbuff; + + /* Only process data block that is larger than the security header */ + if (hdr_bytes < sizeof(struct quark_security_header)) + return 0; + + if (csh->csh_signature != QUARK_CSH_SIGNATURE || + csh->headersize != QUARK_SECURITY_HEADER_SIZE) + return 1; + + /* Only process data block if EFI header is included */ + if (hdr_bytes < QUARK_SECURITY_HEADER_SIZE + + sizeof(efi_capsule_header_t)) + return 0; + + pr_debug("Quark security header detected\n"); + + if (csh->rsvd_next_header != 0) { + pr_err("multiple Quark security headers not supported\n"); + return -EINVAL; + } + + *pkbuff += csh->headersize; + cap_info->total_size = csh->headersize; + + /* + * Update the first page pointer to skip over the CSH header. + */ + cap_info->pages[0] += csh->headersize; + + return 1; +} + +#define ICPU(family, model, quirk_handler) \ + { X86_VENDOR_INTEL, family, model, X86_FEATURE_ANY, \ + (unsigned long)&quirk_handler } + +static const struct x86_cpu_id efi_capsule_quirk_ids[] = { + ICPU(5, 9, qrk_capsule_setup_info), /* Intel Quark X1000 */ + { } +}; + +int efi_capsule_setup_info(struct capsule_info *cap_info, void *kbuff, + size_t hdr_bytes) +{ + int (*quirk_handler)(struct capsule_info *, void **, size_t); + const struct x86_cpu_id *id; + int ret; + + if (hdr_bytes < sizeof(efi_capsule_header_t)) + return 0; + + cap_info->total_size = 0; + + id = x86_match_cpu(efi_capsule_quirk_ids); + if (id) { + /* + * The quirk handler is supposed to return + * - a value > 0 if the setup should continue, after advancing + * kbuff as needed + * - 0 if not enough hdr_bytes are available yet + * - a negative error code otherwise + */ + quirk_handler = (typeof(quirk_handler))id->driver_data; + ret = quirk_handler(cap_info, &kbuff, hdr_bytes); + if (ret <= 0) + return ret; + } + + memcpy(&cap_info->header, kbuff, sizeof(cap_info->header)); + + cap_info->total_size += cap_info->header.imagesize; + + return __efi_capsule_setup_info(cap_info); +} + +#endif diff --git a/arch/x86/platform/intel-mid/device_libs/platform_max7315.c b/arch/x86/platform/intel-mid/device_libs/platform_max7315.c index 6e075af..58337b2 100644 --- a/arch/x86/platform/intel-mid/device_libs/platform_max7315.c +++ b/arch/x86/platform/intel-mid/device_libs/platform_max7315.c @@ -38,8 +38,10 @@ static void __init *max7315_platform_data(void *info) */ strcpy(i2c_info->type, "max7315"); if (nr++) { - sprintf(base_pin_name, "max7315_%d_base", nr); - sprintf(intr_pin_name, "max7315_%d_int", nr); + snprintf(base_pin_name, sizeof(base_pin_name), + "max7315_%d_base", nr); + snprintf(intr_pin_name, sizeof(intr_pin_name), + "max7315_%d_int", nr); } else { strcpy(base_pin_name, "max7315_base"); strcpy(intr_pin_name, "max7315_int"); diff --git a/arch/x86/platform/olpc/olpc-xo1-pm.c b/arch/x86/platform/olpc/olpc-xo1-pm.c index c5350fd..0668aaf 100644 --- a/arch/x86/platform/olpc/olpc-xo1-pm.c +++ b/arch/x86/platform/olpc/olpc-xo1-pm.c @@ -77,7 +77,7 @@ static int xo1_power_state_enter(suspend_state_t pm_state) asmlinkage __visible int xo1_do_sleep(u8 sleep_state) { - void *pgd_addr = __va(read_cr3()); + void *pgd_addr = __va(read_cr3_pa()); /* Program wakeup mask (using dword access to CS5536_PM1_EN) */ outl(wakeup_mask << 16, acpi_base + CS5536_PM1_STS); diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c index 42e65fe..3e4bdb4 100644 --- a/arch/x86/platform/uv/tlb_uv.c +++ b/arch/x86/platform/uv/tlb_uv.c @@ -40,7 +40,6 @@ static int timeout_base_ns[] = { static int timeout_us; static bool nobau = true; static int nobau_perm; -static cycles_t congested_cycles; /* tunables: */ static int max_concurr = MAX_BAU_CONCURRENT; @@ -456,12 +455,13 @@ static void reset_with_ipi(struct pnmask *distribution, struct bau_control *bcp) */ static inline unsigned long long cycles_2_ns(unsigned long long cyc) { - struct cyc2ns_data *data = cyc2ns_read_begin(); + struct cyc2ns_data data; unsigned long long ns; - ns = mul_u64_u32_shr(cyc, data->cyc2ns_mul, data->cyc2ns_shift); + cyc2ns_read_begin(&data); + ns = mul_u64_u32_shr(cyc, data.cyc2ns_mul, data.cyc2ns_shift); + cyc2ns_read_end(); - cyc2ns_read_end(data); return ns; } @@ -470,12 +470,13 @@ static inline unsigned long long cycles_2_ns(unsigned long long cyc) */ static inline unsigned long long ns_2_cycles(unsigned long long ns) { - struct cyc2ns_data *data = cyc2ns_read_begin(); + struct cyc2ns_data data; unsigned long long cyc; - cyc = (ns << data->cyc2ns_shift) / data->cyc2ns_mul; + cyc2ns_read_begin(&data); + cyc = (ns << data.cyc2ns_shift) / data.cyc2ns_mul; + cyc2ns_read_end(); - cyc2ns_read_end(data); return cyc; } @@ -586,31 +587,11 @@ static unsigned long uv2_3_read_status(unsigned long offset, int rshft, int desc } /* - * Return whether the status of the descriptor that is normally used for this - * cpu (the one indexed by its hub-relative cpu number) is busy. - * The status of the original 32 descriptors is always reflected in the 64 - * bits of UVH_LB_BAU_SB_ACTIVATION_STATUS_0. - * The bit provided by the activation_status_2 register is irrelevant to - * the status if it is only being tested for busy or not busy. - */ -int normal_busy(struct bau_control *bcp) -{ - int cpu = bcp->uvhub_cpu; - int mmr_offset; - int right_shift; - - mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_0; - right_shift = cpu * UV_ACT_STATUS_SIZE; - return (((((read_lmmr(mmr_offset) >> right_shift) & - UV_ACT_STATUS_MASK)) << 1) == UV2H_DESC_BUSY); -} - -/* * Entered when a bau descriptor has gone into a permanent busy wait because * of a hardware bug. * Workaround the bug. */ -int handle_uv2_busy(struct bau_control *bcp) +static int handle_uv2_busy(struct bau_control *bcp) { struct ptc_stats *stat = bcp->statp; @@ -847,10 +828,10 @@ static void record_send_stats(cycles_t time1, cycles_t time2, if ((completion_status == FLUSH_COMPLETE) && (try == 1)) { bcp->period_requests++; bcp->period_time += elapsed; - if ((elapsed > congested_cycles) && + if ((elapsed > usec_2_cycles(bcp->cong_response_us)) && (bcp->period_requests > bcp->cong_reps) && ((bcp->period_time / bcp->period_requests) > - congested_cycles)) { + usec_2_cycles(bcp->cong_response_us))) { stat->s_congested++; disable_for_period(bcp, stat); } @@ -915,8 +896,9 @@ static void handle_cmplt(int completion_status, struct bau_desc *bau_desc, * Returns 1 if it gives up entirely and the original cpu mask is to be * returned to the kernel. */ -int uv_flush_send_and_wait(struct cpumask *flush_mask, struct bau_control *bcp, - struct bau_desc *bau_desc) +static int uv_flush_send_and_wait(struct cpumask *flush_mask, + struct bau_control *bcp, + struct bau_desc *bau_desc) { int seq_number = 0; int completion_stat = 0; @@ -1121,11 +1103,9 @@ static int set_distrib_bits(struct cpumask *flush_mask, struct bau_control *bcp, * done. The returned pointer is valid till preemption is re-enabled. */ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, - struct mm_struct *mm, - unsigned long start, - unsigned long end, - unsigned int cpu) + const struct flush_tlb_info *info) { + unsigned int cpu = smp_processor_id(); int locals = 0, remotes = 0, hubs = 0; struct bau_desc *bau_desc; struct cpumask *flush_mask; @@ -1179,8 +1159,8 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, record_send_statistics(stat, locals, hubs, remotes, bau_desc); - if (!end || (end - start) <= PAGE_SIZE) - address = start; + if (!info->end || (info->end - info->start) <= PAGE_SIZE) + address = info->start; else address = TLB_FLUSH_ALL; @@ -1212,8 +1192,8 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, * Search the message queue for any 'other' unprocessed message with the * same software acknowledge resource bit vector as the 'msg' message. */ -struct bau_pq_entry *find_another_by_swack(struct bau_pq_entry *msg, - struct bau_control *bcp) +static struct bau_pq_entry *find_another_by_swack(struct bau_pq_entry *msg, + struct bau_control *bcp) { struct bau_pq_entry *msg_next = msg + 1; unsigned char swack_vec = msg->swack_vec; @@ -2241,14 +2221,17 @@ static int __init uv_bau_init(void) else if (is_uv1_hub()) ops = uv1_bau_ops; + nuvhubs = uv_num_possible_blades(); + if (nuvhubs < 2) { + pr_crit("UV: BAU disabled - insufficient hub count\n"); + goto err_bau_disable; + } + for_each_possible_cpu(cur_cpu) { mask = &per_cpu(uv_flush_tlb_mask, cur_cpu); zalloc_cpumask_var_node(mask, GFP_KERNEL, cpu_to_node(cur_cpu)); } - nuvhubs = uv_num_possible_blades(); - congested_cycles = usec_2_cycles(congested_respns_us); - uv_base_pnode = 0x7fffffff; for (uvhub = 0; uvhub < nuvhubs; uvhub++) { cpus = uv_blade_nr_possible_cpus(uvhub); @@ -2261,9 +2244,8 @@ static int __init uv_bau_init(void) enable_timeouts(); if (init_per_cpu(nuvhubs, uv_base_pnode)) { - set_bau_off(); - nobau_perm = 1; - return 0; + pr_crit("UV: BAU disabled - per CPU init failed\n"); + goto err_bau_disable; } vector = UV_BAU_MESSAGE; @@ -2289,6 +2271,16 @@ static int __init uv_bau_init(void) } return 0; + +err_bau_disable: + + for_each_possible_cpu(cur_cpu) + free_cpumask_var(per_cpu(uv_flush_tlb_mask, cur_cpu)); + + set_bau_off(); + nobau_perm = 1; + + return -EINVAL; } core_initcall(uv_bau_init); fs_initcall(uv_ptc_init); diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c index 776c659..03fc397 100644 --- a/arch/x86/platform/uv/uv_irq.c +++ b/arch/x86/platform/uv/uv_irq.c @@ -160,13 +160,21 @@ static struct irq_domain *uv_get_irq_domain(void) { static struct irq_domain *uv_domain; static DEFINE_MUTEX(uv_lock); + struct fwnode_handle *fn; mutex_lock(&uv_lock); - if (uv_domain == NULL) { - uv_domain = irq_domain_add_tree(NULL, &uv_domain_ops, NULL); - if (uv_domain) - uv_domain->parent = x86_vector_domain; - } + if (uv_domain) + goto out; + + fn = irq_domain_alloc_named_fwnode("UV-CORE"); + if (!fn) + goto out; + + uv_domain = irq_domain_create_tree(fn, &uv_domain_ops, NULL); + irq_domain_free_fwnode(fn); + if (uv_domain) + uv_domain->parent = x86_vector_domain; +out: mutex_unlock(&uv_lock); return uv_domain; |
