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openSUSE:12.2:ARM
xen
23774-x86_64-EFI-EDD.patch
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File 23774-x86_64-EFI-EDD.patch of Package xen
# HG changeset patch # User Jan Beulich <jbeulich@novell.com> # Date 1313744120 -3600 # Node ID e35c5202625ef5534561f84352833ad9467d986c # Parent dd90b59cb11c60c48e174c899190e2967341fe32 x86-64/EFI: construct EDD data from device path protocol information In the absence of a BIOS to handle INT13 requests, this information must be constructed artificially instead when booted from EFI. Signed-off-by: Jan Beulich <jbeulich@novell.com> Index: xen-4.1.2-testing/xen/arch/x86/boot/edd.S =================================================================== --- xen-4.1.2-testing.orig/xen/arch/x86/boot/edd.S +++ xen-4.1.2-testing/xen/arch/x86/boot/edd.S @@ -16,21 +16,13 @@ * Updated and ported for Xen by Keir Fraser <keir@xensource.com> June 2007 */ +#include <asm/edd.h> + .code16 /* Offset of disc signature in the MBR. */ #define EDD_MBR_SIG_OFFSET 0x1B8 -/* Maximum number of EDD information structures at boot_edd_info. */ -#define EDD_INFO_MAX 6 - -/* Maximum number of MBR signatures at boot_mbr_signature. */ -#define EDD_MBR_SIG_MAX 16 - -/* Size of components of EDD information structure. */ -#define EDDEXTSIZE 8 -#define EDDPARMSIZE 74 - get_edd: cmpb $2, bootsym(opt_edd) # edd=off ? je edd_done Index: xen-4.1.2-testing/xen/arch/x86/efi/boot.c =================================================================== --- xen-4.1.2-testing.orig/xen/arch/x86/efi/boot.c +++ xen-4.1.2-testing/xen/arch/x86/efi/boot.c @@ -16,6 +16,7 @@ #include <xen/stringify.h> #include <xen/vga.h> #include <asm/e820.h> +#include <asm/edd.h> #include <asm/mm.h> #include <asm/msr.h> #include <asm/processor.h> @@ -539,6 +540,18 @@ static void __init split_value(char *s) *s = 0; } +static void __init edd_put_string(u8 *dst, size_t n, const char *src) +{ + while ( n-- && *src ) + *dst++ = *src++; + if ( *src ) + PrintErrMesg(L"Internal error populating EDD info", + EFI_BUFFER_TOO_SMALL); + while ( n-- ) + *dst++ = ' '; +} +#define edd_put_string(d, s) edd_put_string(d, ARRAY_SIZE(d), s) + static int __init set_color(u32 mask, int bpp, u8 *pos, u8 *sz) { if ( bpp < 0 ) @@ -607,6 +620,8 @@ efi_start(EFI_HANDLE ImageHandle, EFI_SY { static EFI_GUID __initdata loaded_image_guid = LOADED_IMAGE_PROTOCOL; static EFI_GUID __initdata gop_guid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID; + static EFI_GUID __initdata bio_guid = BLOCK_IO_PROTOCOL; + static EFI_GUID __initdata devp_guid = DEVICE_PATH_PROTOCOL; EFI_LOADED_IMAGE *loaded_image; EFI_STATUS status; unsigned int i, argc; @@ -887,7 +902,148 @@ efi_start(EFI_HANDLE ImageHandle, EFI_SY place_string(&mbi.mem_upper, NULL); - /* XXX Collect EDD info. */ + /* Collect EDD info. */ + BUILD_BUG_ON(offsetof(struct edd_info, edd_device_params) != EDDEXTSIZE); + BUILD_BUG_ON(sizeof(struct edd_device_params) != EDDPARMSIZE); + size = 0; + status = efi_bs->LocateHandle(ByProtocol, &bio_guid, NULL, &size, NULL); + if ( status == EFI_BUFFER_TOO_SMALL ) + status = efi_bs->AllocatePool(EfiLoaderData, size, (void **)&handles); + if ( !EFI_ERROR(status) ) + status = efi_bs->LocateHandle(ByProtocol, &bio_guid, NULL, &size, + handles); + if ( EFI_ERROR(status) ) + size = 0; + for ( i = 0; i < size / sizeof(*handles); ++i ) + { + EFI_BLOCK_IO *bio; + EFI_DEV_PATH_PTR devp; + struct edd_info *info = boot_edd_info + boot_edd_info_nr; + struct edd_device_params *params = &info->edd_device_params; + enum { root, acpi, pci, ctrlr } state = root; + + status = efi_bs->HandleProtocol(handles[i], &bio_guid, (void **)&bio); + if ( EFI_ERROR(status) || + bio->Media->RemovableMedia || + bio->Media->LogicalPartition ) + continue; + if ( boot_edd_info_nr < EDD_INFO_MAX ) + { + info->device = 0x80 + boot_edd_info_nr; /* fake */ + info->version = 0x11; + params->length = offsetof(struct edd_device_params, dpte_ptr); + params->number_of_sectors = bio->Media->LastBlock + 1; + params->bytes_per_sector = bio->Media->BlockSize; + params->dpte_ptr = ~0; + } + ++boot_edd_info_nr; + status = efi_bs->HandleProtocol(handles[i], &devp_guid, + (void **)&devp); + if ( EFI_ERROR(status) ) + continue; + for ( ; !IsDevicePathEnd(devp.DevPath); + devp.DevPath = NextDevicePathNode(devp.DevPath) ) + { + switch ( DevicePathType(devp.DevPath) ) + { + const u8 *p; + + case ACPI_DEVICE_PATH: + if ( state != root || boot_edd_info_nr > EDD_INFO_MAX ) + break; + switch ( DevicePathSubType(devp.DevPath) ) + { + case ACPI_DP: + if ( devp.Acpi->HID != EISA_PNP_ID(0xA03) && + devp.Acpi->HID != EISA_PNP_ID(0xA08) ) + break; + params->interface_path.pci.bus = devp.Acpi->UID; + state = acpi; + break; + case EXPANDED_ACPI_DP: + /* XXX */ + break; + } + break; + case HARDWARE_DEVICE_PATH: + if ( state != acpi || + DevicePathSubType(devp.DevPath) != HW_PCI_DP || + boot_edd_info_nr > EDD_INFO_MAX ) + break; + state = pci; + edd_put_string(params->host_bus_type, "PCI"); + params->interface_path.pci.slot = devp.Pci->Device; + params->interface_path.pci.function = devp.Pci->Function; + break; + case MESSAGING_DEVICE_PATH: + if ( state != pci || boot_edd_info_nr > EDD_INFO_MAX ) + break; + state = ctrlr; + switch ( DevicePathSubType(devp.DevPath) ) + { + case MSG_ATAPI_DP: + edd_put_string(params->interface_type, "ATAPI"); + params->interface_path.pci.channel = + devp.Atapi->PrimarySecondary; + params->device_path.atapi.device = devp.Atapi->SlaveMaster; + params->device_path.atapi.lun = devp.Atapi->Lun; + break; + case MSG_SCSI_DP: + edd_put_string(params->interface_type, "SCSI"); + params->device_path.scsi.id = devp.Scsi->Pun; + params->device_path.scsi.lun = devp.Scsi->Lun; + break; + case MSG_FIBRECHANNEL_DP: + edd_put_string(params->interface_type, "FIBRE"); + params->device_path.fibre.wwid = devp.FibreChannel->WWN; + params->device_path.fibre.lun = devp.FibreChannel->Lun; + break; + case MSG_1394_DP: + edd_put_string(params->interface_type, "1394"); + params->device_path.i1394.eui = devp.F1394->Guid; + break; + case MSG_USB_DP: + case MSG_USB_CLASS_DP: + edd_put_string(params->interface_type, "USB"); + break; + case MSG_I2O_DP: + edd_put_string(params->interface_type, "I2O"); + params->device_path.i2o.identity_tag = devp.I2O->Tid; + break; + default: + continue; + } + info->version = 0x30; + params->length = sizeof(struct edd_device_params); + params->key = 0xbedd; + params->device_path_info_length = + sizeof(struct edd_device_params) - + offsetof(struct edd_device_params, key); + for ( p = (const u8 *)¶ms->key; p < ¶ms->checksum; ++p ) + params->checksum -= *p; + break; + case MEDIA_DEVICE_PATH: + if ( DevicePathSubType(devp.DevPath) == MEDIA_HARDDRIVE_DP && + devp.HardDrive->MBRType == MBR_TYPE_PCAT && + boot_mbr_signature_nr < EDD_MBR_SIG_MAX ) + { + struct mbr_signature *sig = boot_mbr_signature + + boot_mbr_signature_nr; + + sig->device = 0x80 + boot_edd_info_nr; /* fake */ + memcpy(&sig->signature, devp.HardDrive->Signature, + sizeof(sig->signature)); + ++boot_mbr_signature_nr; + } + break; + } + } + } + if ( handles ) + efi_bs->FreePool(handles); + if ( boot_edd_info_nr > EDD_INFO_MAX ) + boot_edd_info_nr = EDD_INFO_MAX; + /* XXX Collect EDID info. */ if ( cpuid_eax(0x80000000) > 0x80000000 ) Index: xen-4.1.2-testing/xen/include/asm-x86/edd.h =================================================================== --- xen-4.1.2-testing.orig/xen/include/asm-x86/edd.h +++ xen-4.1.2-testing/xen/include/asm-x86/edd.h @@ -23,6 +23,8 @@ #ifndef __XEN_EDD_H__ #define __XEN_EDD_H__ +#ifndef __ASSEMBLY__ + struct edd_info { /* Int13, Fn48: Check Extensions Present. */ u8 device; /* %dl: device */ @@ -33,10 +35,106 @@ struct edd_info { u8 legacy_max_head; /* %dh: maximum head number */ u8 legacy_sectors_per_track; /* %cl[5:0]: maximum sector number */ /* Int13, Fn41: Get Device Parameters (as filled into %ds:%esi). */ - struct { + struct edd_device_params { u16 length; - u8 data[72]; - } edd_device_params; + u16 info_flags; + u32 num_default_cylinders; + u32 num_default_heads; + u32 sectors_per_track; + u64 number_of_sectors; + u16 bytes_per_sector; + u32 dpte_ptr; /* 0xFFFFFFFF for our purposes */ + u16 key; /* = 0xBEDD */ + u8 device_path_info_length; + u8 reserved2; + u16 reserved3; + u8 host_bus_type[4]; + u8 interface_type[8]; + union { + struct { + u16 base_address; + u16 reserved1; + u32 reserved2; + } __attribute__ ((packed)) isa; + struct { + u8 bus; + u8 slot; + u8 function; + u8 channel; + u32 reserved; + } __attribute__ ((packed)) pci; + /* pcix is same as pci */ + struct { + u64 reserved; + } __attribute__ ((packed)) ibnd; + struct { + u64 reserved; + } __attribute__ ((packed)) xprs; + struct { + u64 reserved; + } __attribute__ ((packed)) htpt; + struct { + u64 reserved; + } __attribute__ ((packed)) unknown; + } interface_path; + union { + struct { + u8 device; + u8 reserved1; + u16 reserved2; + u32 reserved3; + u64 reserved4; + } __attribute__ ((packed)) ata; + struct { + u8 device; + u8 lun; + u8 reserved1; + u8 reserved2; + u32 reserved3; + u64 reserved4; + } __attribute__ ((packed)) atapi; + struct { + u16 id; + u64 lun; + u16 reserved1; + u32 reserved2; + } __attribute__ ((packed)) scsi; + struct { + u64 serial_number; + u64 reserved; + } __attribute__ ((packed)) usb; + struct { + u64 eui; + u64 reserved; + } __attribute__ ((packed)) i1394; + struct { + u64 wwid; + u64 lun; + } __attribute__ ((packed)) fibre; + struct { + u64 identity_tag; + u64 reserved; + } __attribute__ ((packed)) i2o; + struct { + u32 array_number; + u32 reserved1; + u64 reserved2; + } __attribute__ ((packed)) raid; + struct { + u8 device; + u8 reserved1; + u16 reserved2; + u32 reserved3; + u64 reserved4; + } __attribute__ ((packed)) sata; + struct { + u64 reserved1; + u64 reserved2; + } __attribute__ ((packed)) unknown; + } device_path; + u8 reserved4; + u8 checksum; + } __attribute__ ((packed)) edd_device_params; } __attribute__ ((packed)); struct mbr_signature { @@ -51,4 +149,16 @@ extern u8 boot_mbr_signature_nr; extern struct edd_info boot_edd_info[]; extern u8 boot_edd_info_nr; +#endif /* __ASSEMBLY__ */ + +/* Maximum number of EDD information structures at boot_edd_info. */ +#define EDD_INFO_MAX 6 + +/* Maximum number of MBR signatures at boot_mbr_signature. */ +#define EDD_MBR_SIG_MAX 16 + +/* Size of components of EDD information structure. */ +#define EDDEXTSIZE 8 +#define EDDPARMSIZE 74 + #endif /* __XEN_EDD_H__ */
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