diff options
Diffstat (limited to 'src/arch/x86/boot/acpi.c')
| -rw-r--r-- | src/arch/x86/boot/acpi.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/arch/x86/boot/acpi.c b/src/arch/x86/boot/acpi.c index 3859bc1854..c3c946deaa 100644 --- a/src/arch/x86/boot/acpi.c +++ b/src/arch/x86/boot/acpi.c @@ -878,6 +878,23 @@ void acpi_fail_wakeup(void) acpi_slp_type = 0; } +void acpi_prepare_resume_backup(void) +{ + if (!acpi_s3_resume_allowed()) + return; + + /* Let's prepare the ACPI S3 Resume area now already, so we can rely on + * it being there during reboot time. We don't need the pointer, nor + * the result right now. If it fails, ACPI resume will be disabled. + */ + + if (HIGH_MEMORY_SAVE) + cbmem_add(CBMEM_ID_RESUME, HIGH_MEMORY_SAVE); + + if (HIGH_MEMORY_SCRATCH) + cbmem_add(CBMEM_ID_RESUME_SCRATCH, HIGH_MEMORY_SCRATCH); +} + static acpi_rsdp_t *valid_rsdp(acpi_rsdp_t *rsdp) { if (strncmp((char *)rsdp, RSDP_SIG, sizeof(RSDP_SIG) - 1) != 0) |