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| author | Sam Eiderman <shmuel.eiderman@oracle.com> | 2019-06-12 12:37:03 +0300 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2019-11-06 10:56:00 +0100 |
| commit | cb56f61c109985ad71078b1fb2e65bd4d6ed1a59 (patch) | |
| tree | 722865fe87a430be7906fc4e20c6dda1bc29780e | |
| parent | ad2910949b1886deba24f574cee76cdc75e7cabe (diff) | |
| download | seabios-cb56f61c109985ad71078b1fb2e65bd4d6ed1a59.tar.gz | |
config: Add toggle for bootdevice information
Add the "BOOTDEVICES" toggle to remove boot device information received
through fw_cfg.
We will use this toggle in QEMU to reduce the size of the 128k SeaBIOS
rom, which is only used in old compat versions, where this boot device
information does not exist.
Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
Message-Id: <20190612093704.47175-5-shmuel.eiderman@oracle.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| -rw-r--r-- | src/Kconfig | 7 | ||||
| -rw-r--r-- | src/boot.c | 9 |
2 files changed, 16 insertions, 0 deletions
diff --git a/src/Kconfig b/src/Kconfig index 55a87cb7..b3645b33 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -72,6 +72,13 @@ endchoice help Support controlling of the boot order via the fw_cfg/CBFS "bootorder" file. + config BOOTDEVICES + depends on BOOT + bool "Boot device information" + default y + help + Support boot device information via the fw_cfg/CBFS + "bootdevices" file. config COREBOOT_FLASH depends on COREBOOT @@ -95,6 +95,9 @@ static int BootDeviceCount; static void loadBootDevices(void) { + if (!CONFIG_BOOTDEVICES) + return; + BootDeviceCount = 0; int fsize; char *f = romfile_loadfile("bootdevices", &fsize); @@ -172,6 +175,8 @@ bootdevice_find(const char *glob) static BootDevice * bootdevice_find_pci_device(struct pci_device *pci) { + if (!CONFIG_BOOTDEVICES) + return NULL; // Find pci device - for example: /pci@i0cf8/ethernet@5 char desc[256]; build_pci_path(desc, sizeof(desc), "*", pci); @@ -181,6 +186,8 @@ bootdevice_find_pci_device(struct pci_device *pci) static BootDevice * bootdevice_find_scsi_device(struct pci_device *pci, int target, int lun) { + if (!CONFIG_BOOTDEVICES) + return NULL; if (!pci) // support only pci machine for now return NULL; @@ -194,6 +201,8 @@ bootdevice_find_scsi_device(struct pci_device *pci, int target, int lun) static BootDevice * bootdevice_find_ata_device(struct pci_device *pci, int chanid, int slave) { + if (!CONFIG_BOOTDEVICES) + return NULL; if (!pci) // support only pci machine for now return NULL; |