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[efi] Make EFI_HII_DATABASE_PROTOCOL optional

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Some UEFI systems (observed with a Mac Pro) do not provide
EFI_HII_DATABASE_PROTOCOL.  We can continue to function without
providing access to network device settings via HII, so make this
protocol optional and fall back to simply not providing any HII
protocols.

Reported-by: Matt Woodward <pxematt@woodwardcc.com>
Tested-by: Matt Woodward <pxematt@woodwardcc.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2014-05-19 20:29:01 +01:00
parent 21c43e44cb
commit 81df95e8ae
1 changed files with 10 additions and 1 deletions
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11
src/interface/efi/efi_snp_hii.c
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@ -75,7 +75,7 @@ static EFI_GUID efi_hii_ibm_ucm_compliant_formset_guid
/** EFI HII database protocol */
static EFI_HII_DATABASE_PROTOCOL *efihii;
EFI_REQUIRE_PROTOCOL ( EFI_HII_DATABASE_PROTOCOL, &efihii );
EFI_REQUEST_PROTOCOL ( EFI_HII_DATABASE_PROTOCOL, &efihii );
/**
* Identify settings to be exposed via HII
@ -649,6 +649,10 @@ int efi_snp_hii_install ( struct efi_snp_device *snpdev ) {
int efirc;
int rc;
/* Do nothing if HII database protocol is not supported */
if ( ! efihii )
return 0;
/* Initialise HII protocol */
memcpy ( &snpdev->hii, &efi_snp_device_hii, sizeof ( snpdev->hii ) );
@ -705,6 +709,11 @@ int efi_snp_hii_install ( struct efi_snp_device *snpdev ) {
void efi_snp_hii_uninstall ( struct efi_snp_device *snpdev ) {
EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
/* Do nothing if HII database protocol is not supported */
if ( ! efihii )
return;
/* Uninstall protocols and remove package list */
bs->UninstallMultipleProtocolInterfaces (
snpdev->handle,
&efi_hii_config_access_protocol_guid, &snpdev->hii,