From: David Woodhouse <David.Woodhouse@xxxxxxxxx> The 'Attributes' argument to pci->Attributes() function is 64-bit. So when invoking in 32-bit mode it takes two registers, not just one. This fixes memory corruption when booting via the 32-bit EFI boot stub. Signed-off-by: David Woodhouse <David.Woodhouse@xxxxxxxxx> --- arch/x86/boot/compressed/eboot.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c index 03d8c9b..685d0b9 100644 --- a/arch/x86/boot/compressed/eboot.c +++ b/arch/x86/boot/compressed/eboot.c @@ -295,10 +295,15 @@ static efi_status_t setup_efi_pci(struct boot_params *params) if (!pci) continue; +#ifdef CONFIG_X86_64 status = efi_call_phys4(pci->attributes, pci, EfiPciIoAttributeOperationGet, 0, &attributes); - +#else + status = efi_call_phys5(pci->attributes, pci, + EfiPciIoAttributeOperationGet, 0, 0, + &attributes); +#endif if (status != EFI_SUCCESS) continue; -- 1.8.0.1 -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
