static struct ghes *ghes_new(struct acpi_hest_generic *generic)
{
struct ghes *ghes;
unsigned int error_block_length;
int rc;
ghes = kzalloc(sizeof(*ghes), GFP_KERNEL);
if (!ghes)
return ERR_PTR(-ENOMEM);
ghes->generic = generic;
rc = apei_map_generic_address(&generic->error_status_address);
if (rc)
goto err_free;
error_block_length = generic->error_block_length;
if (error_block_length > GHES_ESTATUS_MAX_SIZE) {
pr_warning(FW_WARN GHES_PFX
"Error status block length is too long: %u for "
"generic hardware error source: %d.\n",
error_block_length, generic->header.source_id);
error_block_length = GHES_ESTATUS_MAX_SIZE;
}
ghes->estatus = kmalloc(error_block_length, GFP_KERNEL);
if (!ghes->estatus) {
rc = -ENOMEM;
goto err_unmap;
}
return ghes;
err_unmap:
apei_unmap_generic_address(&generic->error_status_address);
err_free:
kfree(ghes);
return ERR_PTR(rc);
}
static int post_unmap_gar_callback(struct apei_exec_context *ctx,
struct acpi_whea_header *entry,
void *data)
{
u8 ins = entry->instruction;
if (ctx->ins_table[ins].flags & APEI_EXEC_INS_ACCESS_REGISTER)
apei_unmap_generic_address(&entry->register_region);
return 0;
}
static void ghes_fini(struct ghes *ghes)
{
kfree(ghes->estatus);
apei_unmap_generic_address(&ghes->generic->error_status_address);
}