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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-05 17:09:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-05 17:09:27 -0700
commit55a7b2125cf4739a8478d2d7223310ae7393408c (patch)
tree8beb7d6a335d744998f559745de8fb9702871a51 /drivers/firmware
parente5f76a2e0e84ca2a215ecbf6feae88780d055c56 (diff)
parent425e1ed73e6574e4fe186ec82fd37213cbd47df0 (diff)
downloadlinux-55a7b2125cf4739a8478d2d7223310ae7393408c.tar.bz2
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon: - RAS reporting via GHES/APEI (ACPI) - Indirect ftrace trampolines for modules - Improvements to kernel fault reporting - Page poisoning - Sigframe cleanups and preparation for SVE context - Core dump fixes - Sparse fixes (mainly relating to endianness) - xgene SoC PMU v3 driver - Misc cleanups and non-critical fixes * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (75 commits) arm64: fix endianness annotation for 'struct jit_ctx' and friends arm64: cpuinfo: constify attribute_group structures. arm64: ptrace: Fix incorrect get_user() use in compat_vfp_set() arm64: ptrace: Remove redundant overrun check from compat_vfp_set() arm64: ptrace: Avoid setting compat FP[SC]R to garbage if get_user fails arm64: fix endianness annotation for __apply_alternatives()/get_alt_insn() arm64: fix endianness annotation in get_kaslr_seed() arm64: add missing conversion to __wsum in ip_fast_csum() arm64: fix endianness annotation in acpi_parking_protocol.c arm64: use readq() instead of readl() to read 64bit entry_point arm64: fix endianness annotation for reloc_insn_movw() & reloc_insn_imm() arm64: fix endianness annotation for aarch64_insn_write() arm64: fix endianness annotation in aarch64_insn_read() arm64: fix endianness annotation in call_undef_hook() arm64: fix endianness annotation for debug-monitors.c ras: mark stub functions as 'inline' arm64: pass endianness info to sparse arm64: ftrace: fix !CONFIG_ARM64_MODULE_PLTS kernels arm64: signal: Allow expansion of the signal frame acpi: apei: check for pending errors when probing GHES entries ...
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/efi/cper.c204
1 files changed, 187 insertions, 17 deletions
diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
index d42537425438..48a8f69da42a 100644
--- a/drivers/firmware/efi/cper.c
+++ b/drivers/firmware/efi/cper.c
@@ -32,6 +32,10 @@
#include <linux/acpi.h>
#include <linux/pci.h>
#include <linux/aer.h>
+#include <linux/printk.h>
+#include <linux/bcd.h>
+#include <acpi/ghes.h>
+#include <ras/ras_event.h>
#define INDENT_SP " "
@@ -107,12 +111,15 @@ void cper_print_bits(const char *pfx, unsigned int bits,
static const char * const proc_type_strs[] = {
"IA32/X64",
"IA64",
+ "ARM",
};
static const char * const proc_isa_strs[] = {
"IA32",
"IA64",
"X64",
+ "ARM A32/T32",
+ "ARM A64",
};
static const char * const proc_error_type_strs[] = {
@@ -181,6 +188,122 @@ static void cper_print_proc_generic(const char *pfx,
printk("%s""IP: 0x%016llx\n", pfx, proc->ip);
}
+#if defined(CONFIG_ARM64) || defined(CONFIG_ARM)
+static const char * const arm_reg_ctx_strs[] = {
+ "AArch32 general purpose registers",
+ "AArch32 EL1 context registers",
+ "AArch32 EL2 context registers",
+ "AArch32 secure context registers",
+ "AArch64 general purpose registers",
+ "AArch64 EL1 context registers",
+ "AArch64 EL2 context registers",
+ "AArch64 EL3 context registers",
+ "Misc. system register structure",
+};
+
+static void cper_print_proc_arm(const char *pfx,
+ const struct cper_sec_proc_arm *proc)
+{
+ int i, len, max_ctx_type;
+ struct cper_arm_err_info *err_info;
+ struct cper_arm_ctx_info *ctx_info;
+ char newpfx[64];
+
+ printk("%sMIDR: 0x%016llx\n", pfx, proc->midr);
+
+ len = proc->section_length - (sizeof(*proc) +
+ proc->err_info_num * (sizeof(*err_info)));
+ if (len < 0) {
+ printk("%ssection length: %d\n", pfx, proc->section_length);
+ printk("%ssection length is too small\n", pfx);
+ printk("%sfirmware-generated error record is incorrect\n", pfx);
+ printk("%sERR_INFO_NUM is %d\n", pfx, proc->err_info_num);
+ return;
+ }
+
+ if (proc->validation_bits & CPER_ARM_VALID_MPIDR)
+ printk("%sMultiprocessor Affinity Register (MPIDR): 0x%016llx\n",
+ pfx, proc->mpidr);
+
+ if (proc->validation_bits & CPER_ARM_VALID_AFFINITY_LEVEL)
+ printk("%serror affinity level: %d\n", pfx,
+ proc->affinity_level);
+
+ if (proc->validation_bits & CPER_ARM_VALID_RUNNING_STATE) {
+ printk("%srunning state: 0x%x\n", pfx, proc->running_state);
+ printk("%sPower State Coordination Interface state: %d\n",
+ pfx, proc->psci_state);
+ }
+
+ snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
+
+ err_info = (struct cper_arm_err_info *)(proc + 1);
+ for (i = 0; i < proc->err_info_num; i++) {
+ printk("%sError info structure %d:\n", pfx, i);
+
+ printk("%snum errors: %d\n", pfx, err_info->multiple_error + 1);
+
+ if (err_info->validation_bits & CPER_ARM_INFO_VALID_FLAGS) {
+ if (err_info->flags & CPER_ARM_INFO_FLAGS_FIRST)
+ printk("%sfirst error captured\n", newpfx);
+ if (err_info->flags & CPER_ARM_INFO_FLAGS_LAST)
+ printk("%slast error captured\n", newpfx);
+ if (err_info->flags & CPER_ARM_INFO_FLAGS_PROPAGATED)
+ printk("%spropagated error captured\n",
+ newpfx);
+ if (err_info->flags & CPER_ARM_INFO_FLAGS_OVERFLOW)
+ printk("%soverflow occurred, error info is incomplete\n",
+ newpfx);
+ }
+
+ printk("%serror_type: %d, %s\n", newpfx, err_info->type,
+ err_info->type < ARRAY_SIZE(proc_error_type_strs) ?
+ proc_error_type_strs[err_info->type] : "unknown");
+ if (err_info->validation_bits & CPER_ARM_INFO_VALID_ERR_INFO)
+ printk("%serror_info: 0x%016llx\n", newpfx,
+ err_info->error_info);
+ if (err_info->validation_bits & CPER_ARM_INFO_VALID_VIRT_ADDR)
+ printk("%svirtual fault address: 0x%016llx\n",
+ newpfx, err_info->virt_fault_addr);
+ if (err_info->validation_bits & CPER_ARM_INFO_VALID_PHYSICAL_ADDR)
+ printk("%sphysical fault address: 0x%016llx\n",
+ newpfx, err_info->physical_fault_addr);
+ err_info += 1;
+ }
+
+ ctx_info = (struct cper_arm_ctx_info *)err_info;
+ max_ctx_type = ARRAY_SIZE(arm_reg_ctx_strs) - 1;
+ for (i = 0; i < proc->context_info_num; i++) {
+ int size = sizeof(*ctx_info) + ctx_info->size;
+
+ printk("%sContext info structure %d:\n", pfx, i);
+ if (len < size) {
+ printk("%ssection length is too small\n", newpfx);
+ printk("%sfirmware-generated error record is incorrect\n", pfx);
+ return;
+ }
+ if (ctx_info->type > max_ctx_type) {
+ printk("%sInvalid context type: %d (max: %d)\n",
+ newpfx, ctx_info->type, max_ctx_type);
+ return;
+ }
+ printk("%sregister context type: %s\n", newpfx,
+ arm_reg_ctx_strs[ctx_info->type]);
+ print_hex_dump(newpfx, "", DUMP_PREFIX_OFFSET, 16, 4,
+ (ctx_info + 1), ctx_info->size, 0);
+ len -= size;
+ ctx_info = (struct cper_arm_ctx_info *)((long)ctx_info + size);
+ }
+
+ if (len > 0) {
+ printk("%sVendor specific error info has %u bytes:\n", pfx,
+ len);
+ print_hex_dump(newpfx, "", DUMP_PREFIX_OFFSET, 16, 4, ctx_info,
+ len, true);
+ }
+}
+#endif
+
static const char * const mem_err_type_strs[] = {
"unknown",
"no error",
@@ -386,13 +509,38 @@ static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
pfx, pcie->bridge.secondary_status, pcie->bridge.control);
}
-static void cper_estatus_print_section(
- const char *pfx, const struct acpi_hest_generic_data *gdata, int sec_no)
+static void cper_print_tstamp(const char *pfx,
+ struct acpi_hest_generic_data_v300 *gdata)
+{
+ __u8 hour, min, sec, day, mon, year, century, *timestamp;
+
+ if (gdata->validation_bits & ACPI_HEST_GEN_VALID_TIMESTAMP) {
+ timestamp = (__u8 *)&(gdata->time_stamp);
+ sec = bcd2bin(timestamp[0]);
+ min = bcd2bin(timestamp[1]);
+ hour = bcd2bin(timestamp[2]);
+ day = bcd2bin(timestamp[4]);
+ mon = bcd2bin(timestamp[5]);
+ year = bcd2bin(timestamp[6]);
+ century = bcd2bin(timestamp[7]);
+
+ printk("%s%ststamp: %02d%02d-%02d-%02d %02d:%02d:%02d\n", pfx,
+ (timestamp[3] & 0x1 ? "precise " : "imprecise "),
+ century, year, mon, day, hour, min, sec);
+ }
+}
+
+static void
+cper_estatus_print_section(const char *pfx, struct acpi_hest_generic_data *gdata,
+ int sec_no)
{
uuid_le *sec_type = (uuid_le *)gdata->section_type;
__u16 severity;
char newpfx[64];
+ if (acpi_hest_get_version(gdata) >= 3)
+ cper_print_tstamp(pfx, (struct acpi_hest_generic_data_v300 *)gdata);
+
severity = gdata->error_severity;
printk("%s""Error %d, type: %s\n", pfx, sec_no,
cper_severity_str(severity));
@@ -403,14 +551,16 @@ static void cper_estatus_print_section(
snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
if (!uuid_le_cmp(*sec_type, CPER_SEC_PROC_GENERIC)) {
- struct cper_sec_proc_generic *proc_err = (void *)(gdata + 1);
+ struct cper_sec_proc_generic *proc_err = acpi_hest_get_payload(gdata);
+
printk("%s""section_type: general processor error\n", newpfx);
if (gdata->error_data_length >= sizeof(*proc_err))
cper_print_proc_generic(newpfx, proc_err);
else
goto err_section_too_small;
} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) {
- struct cper_sec_mem_err *mem_err = (void *)(gdata + 1);
+ struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata);
+
printk("%s""section_type: memory error\n", newpfx);
if (gdata->error_data_length >=
sizeof(struct cper_sec_mem_err_old))
@@ -419,14 +569,32 @@ static void cper_estatus_print_section(
else
goto err_section_too_small;
} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PCIE)) {
- struct cper_sec_pcie *pcie = (void *)(gdata + 1);
+ struct cper_sec_pcie *pcie = acpi_hest_get_payload(gdata);
+
printk("%s""section_type: PCIe error\n", newpfx);
if (gdata->error_data_length >= sizeof(*pcie))
cper_print_pcie(newpfx, pcie, gdata);
else
goto err_section_too_small;
- } else
- printk("%s""section type: unknown, %pUl\n", newpfx, sec_type);
+#if defined(CONFIG_ARM64) || defined(CONFIG_ARM)
+ } else if (!uuid_le_cmp(*sec_type, CPER_SEC_PROC_ARM)) {
+ struct cper_sec_proc_arm *arm_err = acpi_hest_get_payload(gdata);
+
+ printk("%ssection_type: ARM processor error\n", newpfx);
+ if (gdata->error_data_length >= sizeof(*arm_err))
+ cper_print_proc_arm(newpfx, arm_err);
+ else
+ goto err_section_too_small;
+#endif
+ } else {
+ const void *err = acpi_hest_get_payload(gdata);
+
+ printk("%ssection type: unknown, %pUl\n", newpfx, sec_type);
+ printk("%ssection length: %#x\n", newpfx,
+ gdata->error_data_length);
+ print_hex_dump(newpfx, "", DUMP_PREFIX_OFFSET, 16, 4, err,
+ gdata->error_data_length, true);
+ }
return;
@@ -438,7 +606,7 @@ void cper_estatus_print(const char *pfx,
const struct acpi_hest_generic_status *estatus)
{
struct acpi_hest_generic_data *gdata;
- unsigned int data_len, gedata_len;
+ unsigned int data_len;
int sec_no = 0;
char newpfx[64];
__u16 severity;
@@ -452,11 +620,11 @@ void cper_estatus_print(const char *pfx,
data_len = estatus->data_length;
gdata = (struct acpi_hest_generic_data *)(estatus + 1);
snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
- while (data_len >= sizeof(*gdata)) {
- gedata_len = gdata->error_data_length;
+
+ while (data_len >= acpi_hest_get_size(gdata)) {
cper_estatus_print_section(newpfx, gdata, sec_no);
- data_len -= gedata_len + sizeof(*gdata);
- gdata = (void *)(gdata + 1) + gedata_len;
+ data_len -= acpi_hest_get_record_size(gdata);
+ gdata = acpi_hest_get_next(gdata);
sec_no++;
}
}
@@ -486,12 +654,14 @@ int cper_estatus_check(const struct acpi_hest_generic_status *estatus)
return rc;
data_len = estatus->data_length;
gdata = (struct acpi_hest_generic_data *)(estatus + 1);
- while (data_len >= sizeof(*gdata)) {
- gedata_len = gdata->error_data_length;
- if (gedata_len > data_len - sizeof(*gdata))
+
+ while (data_len >= acpi_hest_get_size(gdata)) {
+ gedata_len = acpi_hest_get_error_length(gdata);
+ if (gedata_len > data_len - acpi_hest_get_size(gdata))
return -EINVAL;
- data_len -= gedata_len + sizeof(*gdata);
- gdata = (void *)(gdata + 1) + gedata_len;
+
+ data_len -= acpi_hest_get_record_size(gdata);
+ gdata = acpi_hest_get_next(gdata);
}
if (data_len)
return -EINVAL;