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efi: Move ARM CPER code to new file

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The ARM CPER code is currently mixed in with the other CPER code. Move it
to a new file to separate it from the rest of the CPER code.

Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Arvind Yadav <arvind.yadav.cs@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasyl Gomonovych <gomonovych@gmail.com>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20180102181042.19074-5-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Tyler Baicar 2018-01-02 18:10:41 +00:00 committed by Ingo Molnar
parent 50342b2e49
commit c6d8c8ef1d
5 changed files with 160 additions and 119 deletions
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5
drivers/firmware/efi/Kconfig
View File

@ -166,6 +166,11 @@ endmenu
config UEFI_CPER
bool
config UEFI_CPER_ARM
bool
depends on UEFI_CPER && ( ARM || ARM64 )
default y
config EFI_DEV_PATH_PARSER
bool
depends on ACPI

1
drivers/firmware/efi/Makefile
View File

@ -30,3 +30,4 @@ arm-obj-$(CONFIG_EFI) := arm-init.o arm-runtime.o
obj-$(CONFIG_ARM) += $(arm-obj-y)
obj-$(CONFIG_ARM64) += $(arm-obj-y)
obj-$(CONFIG_EFI_CAPSULE_LOADER) += capsule-loader.o
obj-$(CONFIG_UEFI_CPER_ARM) += cper-arm.o

147
drivers/firmware/efi/cper-arm.c Normal file
View File

@ -0,0 +1,147 @@
/*
* UEFI Common Platform Error Record (CPER) support
*
* Copyright (C) 2017, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/time.h>
#include <linux/cper.h>
#include <linux/dmi.h>
#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 " "
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",
};
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(cper_proc_error_type_strs) ?
cper_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);
}
}

122
drivers/firmware/efi/cper.c
View File

@ -122,7 +122,7 @@ static const char * const proc_isa_strs[] = {
"ARM A64",
};
static const char * const proc_error_type_strs[] = {
const char * const cper_proc_error_type_strs[] = {
"cache error",
"TLB error",
"bus error",
@ -157,8 +157,8 @@ static void cper_print_proc_generic(const char *pfx,
if (proc->validation_bits & CPER_PROC_VALID_ERROR_TYPE) {
printk("%s""error_type: 0x%02x\n", pfx, proc->proc_error_type);
cper_print_bits(pfx, proc->proc_error_type,
proc_error_type_strs,
ARRAY_SIZE(proc_error_type_strs));
cper_proc_error_type_strs,
ARRAY_SIZE(cper_proc_error_type_strs));
}
if (proc->validation_bits & CPER_PROC_VALID_OPERATION)
printk("%s""operation: %d, %s\n", pfx, proc->operation,
@ -188,122 +188,6 @@ 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",

4
include/linux/cper.h
View File

@ -494,6 +494,8 @@ struct cper_sec_pcie {
/* Reset to default packing */
#pragma pack()
extern const char * const cper_proc_error_type_strs[4];
u64 cper_next_record_id(void);
const char *cper_severity_str(unsigned int);
const char *cper_mem_err_type_str(unsigned int);
@ -503,5 +505,7 @@ void cper_mem_err_pack(const struct cper_sec_mem_err *,
struct cper_mem_err_compact *);
const char *cper_mem_err_unpack(struct trace_seq *,
struct cper_mem_err_compact *);
void cper_print_proc_arm(const char *pfx,
const struct cper_sec_proc_arm *proc);
#endif