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authorAndre Müller <andre.muller@web.de>2014-09-10 01:00:22 +0200
committerMatt Fleming <matt.fleming@intel.com>2014-10-03 18:41:03 +0100
commit77e21e87acec8c857df4bfbc647ea21d0a87364d (patch)
tree46ab040024983bb6ba250e6096fd1c7db3d483d4 /arch/x86
parent4e78eb056136b002ecdfbbf61436fedfb8a3c76b (diff)
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x86/efi: Adding efi_printks on memory allocationa and pci.reads
All other calls to allocate memory seem to make some noise already, with the exception of two calls (for gop, uga) in the setup_graphics path. The purpose is to be noisy on worrysome errors immediately. commit fb86b2440de0 ("x86/efi: Add better error logging to EFI boot stub") introduces printing false alarms for lots of hardware. Rather than playing Whack a Mole with non-fatal exit conditions, try the other way round. This is per Matt Fleming's suggestion: > Where I think we could improve things > is by adding efi_printk() message in certain error paths. Clearly, not > all error paths need such messages, e.g. the EFI_INVALID_PARAMETER path > you highlighted above, but it makes sense for memory allocation and PCI > read failures. Link: http://article.gmane.org/gmane.linux.kernel.efi/4628 Signed-off-by: Andre Müller <andre.muller@web.de> Cc: Ulf Winkelvos <ulf@winkelvos.de> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/boot/compressed/eboot.c28
1 files changed, 21 insertions, 7 deletions
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index f4bdab1dbf66..ed8e06c59a4c 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -323,8 +323,10 @@ __setup_efi_pci32(efi_pci_io_protocol_32 *pci, struct pci_setup_rom **__rom)
size = pci->romsize + sizeof(*rom);
status = efi_call_early(allocate_pool, EFI_LOADER_DATA, size, &rom);
- if (status != EFI_SUCCESS)
+ if (status != EFI_SUCCESS) {
+ efi_printk(sys_table, "Failed to alloc mem for rom\n");
return status;
+ }
memset(rom, 0, sizeof(*rom));
@@ -337,14 +339,18 @@ __setup_efi_pci32(efi_pci_io_protocol_32 *pci, struct pci_setup_rom **__rom)
status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16,
PCI_VENDOR_ID, 1, &(rom->vendor));
- if (status != EFI_SUCCESS)
+ if (status != EFI_SUCCESS) {
+ efi_printk(sys_table, "Failed to read rom->vendor\n");
goto free_struct;
+ }
status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16,
PCI_DEVICE_ID, 1, &(rom->devid));
- if (status != EFI_SUCCESS)
+ if (status != EFI_SUCCESS) {
+ efi_printk(sys_table, "Failed to read rom->devid\n");
goto free_struct;
+ }
status = efi_early->call(pci->get_location, pci, &(rom->segment),
&(rom->bus), &(rom->device), &(rom->function));
@@ -427,8 +433,10 @@ __setup_efi_pci64(efi_pci_io_protocol_64 *pci, struct pci_setup_rom **__rom)
size = pci->romsize + sizeof(*rom);
status = efi_call_early(allocate_pool, EFI_LOADER_DATA, size, &rom);
- if (status != EFI_SUCCESS)
+ if (status != EFI_SUCCESS) {
+ efi_printk(sys_table, "Failed to alloc mem for rom\n");
return status;
+ }
rom->data.type = SETUP_PCI;
rom->data.len = size - sizeof(struct setup_data);
@@ -439,14 +447,18 @@ __setup_efi_pci64(efi_pci_io_protocol_64 *pci, struct pci_setup_rom **__rom)
status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16,
PCI_VENDOR_ID, 1, &(rom->vendor));
- if (status != EFI_SUCCESS)
+ if (status != EFI_SUCCESS) {
+ efi_printk(sys_table, "Failed to read rom->vendor\n");
goto free_struct;
+ }
status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16,
PCI_DEVICE_ID, 1, &(rom->devid));
- if (status != EFI_SUCCESS)
+ if (status != EFI_SUCCESS) {
+ efi_printk(sys_table, "Failed to read rom->devid\n");
goto free_struct;
+ }
status = efi_early->call(pci->get_location, pci, &(rom->segment),
&(rom->bus), &(rom->device), &(rom->function));
@@ -526,8 +538,10 @@ static efi_status_t setup_efi_pci(struct boot_params *params)
EFI_LOADER_DATA,
size, (void **)&pci_handle);
- if (status != EFI_SUCCESS)
+ if (status != EFI_SUCCESS) {
+ efi_printk(sys_table, "Failed to alloc mem for pci_handle\n");
return status;
+ }
status = efi_call_early(locate_handle,
EFI_LOCATE_BY_PROTOCOL, &pci_proto,