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Re: [Qemu-devel] [RFC 42/47] acpi: make tables linker-loader available t
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From: |
Michael S. Tsirkin |
|
Subject: |
Re: [Qemu-devel] [RFC 42/47] acpi: make tables linker-loader available to other targets |
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Date: |
Tue, 20 Jan 2015 00:05:15 +0200 |
On Fri, Dec 19, 2014 at 02:02:37AM +0000, Igor Mammedov wrote:
> keeping bios-linker-loader.c i386 specific would break build
> of mips target which is built with CONFIG_ACPI which would
> dependend on it in following patch that adds acpi_def_block()
> term. Also UEFI for ARM target is going to use linker as well
> so it makes sense to move it into generic target independent
> ACPI part.
>
> Signed-off-by: Igor Mammedov <address@hidden>
I reworked this one to avoid the huge diffs.
Pls check the pci branch.
> ---
> hw/acpi/Makefile.objs | 2 +-
> hw/acpi/acpi_gen_utils.c | 1 +
> hw/acpi/bios-linker-loader.c | 157
> +++++++++++++++++++++++++++++++++++
> hw/i386/Makefile.objs | 1 -
> hw/i386/acpi-build.c | 2 +-
> hw/i386/bios-linker-loader.c | 157
> -----------------------------------
> hw/i386/bios-linker-loader.h | 27 ------
> include/hw/acpi/bios-linker-loader.h | 27 ++++++
> 8 files changed, 187 insertions(+), 187 deletions(-)
> create mode 100644 hw/acpi/bios-linker-loader.c
> delete mode 100644 hw/i386/bios-linker-loader.c
> delete mode 100644 hw/i386/bios-linker-loader.h
> create mode 100644 include/hw/acpi/bios-linker-loader.h
>
> diff --git a/hw/acpi/Makefile.objs b/hw/acpi/Makefile.objs
> index 4237232..02ca4ed 100644
> --- a/hw/acpi/Makefile.objs
> +++ b/hw/acpi/Makefile.objs
> @@ -1,4 +1,4 @@
> common-obj-$(CONFIG_ACPI) += core.o piix4.o ich9.o pcihp.o cpu_hotplug.o
> common-obj-$(CONFIG_ACPI) += memory_hotplug.o
> common-obj-$(CONFIG_ACPI) += acpi_interface.o
> -common-obj-$(CONFIG_ACPI) += acpi_gen_utils.o
> +common-obj-$(CONFIG_ACPI) += acpi_gen_utils.o bios-linker-loader.o
> diff --git a/hw/acpi/acpi_gen_utils.c b/hw/acpi/acpi_gen_utils.c
> index 39cbab7..cc2fa03 100644
> --- a/hw/acpi/acpi_gen_utils.c
> +++ b/hw/acpi/acpi_gen_utils.c
> @@ -5,6 +5,7 @@
> #include <string.h>
> #include "hw/acpi/acpi_gen_utils.h"
> #include "qemu/bswap.h"
> +#include "hw/acpi/bios-linker-loader.h"
>
> GArray *build_alloc_array(void)
> {
> diff --git a/hw/acpi/bios-linker-loader.c b/hw/acpi/bios-linker-loader.c
> new file mode 100644
> index 0000000..5cc4d90
> --- /dev/null
> +++ b/hw/acpi/bios-linker-loader.c
> @@ -0,0 +1,157 @@
> +/* Dynamic linker/loader of ACPI tables
> + *
> + * Copyright (C) 2013 Red Hat Inc
> + *
> + * Author: Michael S. Tsirkin <address@hidden>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> +
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> +
> + * You should have received a copy of the GNU General Public License along
> + * with this program; if not, see <http://www.gnu.org/licenses/>.
> + */
> +
> +#include "qemu-common.h"
> +#include "hw/acpi/bios-linker-loader.h"
> +#include "hw/nvram/fw_cfg.h"
> +
> +#include "qemu/bswap.h"
> +
> +#define BIOS_LINKER_LOADER_FILESZ FW_CFG_MAX_FILE_PATH
> +
> +struct BiosLinkerLoaderEntry {
> + uint32_t command;
> + union {
> + /*
> + * COMMAND_ALLOCATE - allocate a table from @alloc.file
> + * subject to @alloc.align alignment (must be power of 2)
> + * and @alloc.zone (can be HIGH or FSEG) requirements.
> + *
> + * Must appear exactly once for each file, and before
> + * this file is referenced by any other command.
> + */
> + struct {
> + char file[BIOS_LINKER_LOADER_FILESZ];
> + uint32_t align;
> + uint8_t zone;
> + } alloc;
> +
> + /*
> + * COMMAND_ADD_POINTER - patch the table (originating from
> + * @dest_file) at @pointer.offset, by adding a pointer to the table
> + * originating from @src_file. 1,2,4 or 8 byte unsigned
> + * addition is used depending on @pointer.size.
> + */
> + struct {
> + char dest_file[BIOS_LINKER_LOADER_FILESZ];
> + char src_file[BIOS_LINKER_LOADER_FILESZ];
> + uint32_t offset;
> + uint8_t size;
> + } pointer;
> +
> + /*
> + * COMMAND_ADD_CHECKSUM - calculate checksum of the range specified
> by
> + * @cksum_start and @cksum_length fields,
> + * and then add the value at @cksum.offset.
> + * Checksum simply sums -X for each byte X in the range
> + * using 8-bit math.
> + */
> + struct {
> + char file[BIOS_LINKER_LOADER_FILESZ];
> + uint32_t offset;
> + uint32_t start;
> + uint32_t length;
> + } cksum;
> +
> + /* padding */
> + char pad[124];
> + };
> +} QEMU_PACKED;
> +typedef struct BiosLinkerLoaderEntry BiosLinkerLoaderEntry;
> +
> +enum {
> + BIOS_LINKER_LOADER_COMMAND_ALLOCATE = 0x1,
> + BIOS_LINKER_LOADER_COMMAND_ADD_POINTER = 0x2,
> + BIOS_LINKER_LOADER_COMMAND_ADD_CHECKSUM = 0x3,
> +};
> +
> +enum {
> + BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH = 0x1,
> + BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG = 0x2,
> +};
> +
> +GArray *bios_linker_loader_init(void)
> +{
> + return g_array_new(false, true /* clear */, 1);
> +}
> +
> +/* Free linker wrapper and return the linker array. */
> +void *bios_linker_loader_cleanup(GArray *linker)
> +{
> + return g_array_free(linker, false);
> +}
> +
> +void bios_linker_loader_alloc(GArray *linker,
> + const char *file,
> + uint32_t alloc_align,
> + bool alloc_fseg)
> +{
> + BiosLinkerLoaderEntry entry;
> +
> + memset(&entry, 0, sizeof entry);
> + strncpy(entry.alloc.file, file, sizeof entry.alloc.file - 1);
> + entry.command = cpu_to_le32(BIOS_LINKER_LOADER_COMMAND_ALLOCATE);
> + entry.alloc.align = cpu_to_le32(alloc_align);
> + entry.alloc.zone = cpu_to_le32(alloc_fseg ?
> + BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG :
> + BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH);
> +
> + /* Alloc entries must come first, so prepend them */
> + g_array_prepend_vals(linker, &entry, sizeof entry);
> +}
> +
> +void bios_linker_loader_add_checksum(GArray *linker, const char *file,
> + void *table,
> + void *start, unsigned size,
> + uint8_t *checksum)
> +{
> + BiosLinkerLoaderEntry entry;
> +
> + memset(&entry, 0, sizeof entry);
> + strncpy(entry.cksum.file, file, sizeof entry.cksum.file - 1);
> + entry.command = cpu_to_le32(BIOS_LINKER_LOADER_COMMAND_ADD_CHECKSUM);
> + entry.cksum.offset = cpu_to_le32(checksum - (uint8_t *)table);
> + entry.cksum.start = cpu_to_le32((uint8_t *)start - (uint8_t *)table);
> + entry.cksum.length = cpu_to_le32(size);
> +
> + g_array_append_vals(linker, &entry, sizeof entry);
> +}
> +
> +void bios_linker_loader_add_pointer(GArray *linker,
> + const char *dest_file,
> + const char *src_file,
> + GArray *table, void *pointer,
> + uint8_t pointer_size)
> +{
> + BiosLinkerLoaderEntry entry;
> +
> + memset(&entry, 0, sizeof entry);
> + strncpy(entry.pointer.dest_file, dest_file,
> + sizeof entry.pointer.dest_file - 1);
> + strncpy(entry.pointer.src_file, src_file,
> + sizeof entry.pointer.src_file - 1);
> + entry.command = cpu_to_le32(BIOS_LINKER_LOADER_COMMAND_ADD_POINTER);
> + entry.pointer.offset = cpu_to_le32((gchar *)pointer - table->data);
> + entry.pointer.size = pointer_size;
> + assert(pointer_size == 1 || pointer_size == 2 ||
> + pointer_size == 4 || pointer_size == 8);
> +
> + g_array_append_vals(linker, &entry, sizeof entry);
> +}
> diff --git a/hw/i386/Makefile.objs b/hw/i386/Makefile.objs
> index 790a56c..6c8705d 100644
> --- a/hw/i386/Makefile.objs
> +++ b/hw/i386/Makefile.objs
> @@ -7,7 +7,6 @@ obj-$(CONFIG_XEN) += ../xenpv/ xen/
>
> obj-y += kvmvapic.o
> obj-y += acpi-build.o
> -obj-y += bios-linker-loader.o
> hw/i386/acpi-build.o: hw/i386/acpi-build.c hw/i386/acpi-dsdt.hex \
> hw/i386/ssdt-misc.hex hw/i386/q35-acpi-dsdt.hex \
> hw/i386/ssdt-tpm.hex
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index b425156..e0fa30a 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -36,7 +36,7 @@
> #include "hw/i386/acpi-defs.h"
> #include "hw/acpi/acpi.h"
> #include "hw/nvram/fw_cfg.h"
> -#include "bios-linker-loader.h"
> +#include "hw/acpi/bios-linker-loader.h"
> #include "hw/loader.h"
> #include "hw/isa/isa.h"
> #include "hw/acpi/memory_hotplug.h"
> diff --git a/hw/i386/bios-linker-loader.c b/hw/i386/bios-linker-loader.c
> deleted file mode 100644
> index aa56184..0000000
> --- a/hw/i386/bios-linker-loader.c
> +++ /dev/null
> @@ -1,157 +0,0 @@
> -/* Dynamic linker/loader of ACPI tables
> - *
> - * Copyright (C) 2013 Red Hat Inc
> - *
> - * Author: Michael S. Tsirkin <address@hidden>
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation; either version 2 of the License, or
> - * (at your option) any later version.
> -
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> - * GNU General Public License for more details.
> -
> - * You should have received a copy of the GNU General Public License along
> - * with this program; if not, see <http://www.gnu.org/licenses/>.
> - */
> -
> -#include "qemu-common.h"
> -#include "bios-linker-loader.h"
> -#include "hw/nvram/fw_cfg.h"
> -
> -#include "qemu/bswap.h"
> -
> -#define BIOS_LINKER_LOADER_FILESZ FW_CFG_MAX_FILE_PATH
> -
> -struct BiosLinkerLoaderEntry {
> - uint32_t command;
> - union {
> - /*
> - * COMMAND_ALLOCATE - allocate a table from @alloc.file
> - * subject to @alloc.align alignment (must be power of 2)
> - * and @alloc.zone (can be HIGH or FSEG) requirements.
> - *
> - * Must appear exactly once for each file, and before
> - * this file is referenced by any other command.
> - */
> - struct {
> - char file[BIOS_LINKER_LOADER_FILESZ];
> - uint32_t align;
> - uint8_t zone;
> - } alloc;
> -
> - /*
> - * COMMAND_ADD_POINTER - patch the table (originating from
> - * @dest_file) at @pointer.offset, by adding a pointer to the table
> - * originating from @src_file. 1,2,4 or 8 byte unsigned
> - * addition is used depending on @pointer.size.
> - */
> - struct {
> - char dest_file[BIOS_LINKER_LOADER_FILESZ];
> - char src_file[BIOS_LINKER_LOADER_FILESZ];
> - uint32_t offset;
> - uint8_t size;
> - } pointer;
> -
> - /*
> - * COMMAND_ADD_CHECKSUM - calculate checksum of the range specified
> by
> - * @cksum_start and @cksum_length fields,
> - * and then add the value at @cksum.offset.
> - * Checksum simply sums -X for each byte X in the range
> - * using 8-bit math.
> - */
> - struct {
> - char file[BIOS_LINKER_LOADER_FILESZ];
> - uint32_t offset;
> - uint32_t start;
> - uint32_t length;
> - } cksum;
> -
> - /* padding */
> - char pad[124];
> - };
> -} QEMU_PACKED;
> -typedef struct BiosLinkerLoaderEntry BiosLinkerLoaderEntry;
> -
> -enum {
> - BIOS_LINKER_LOADER_COMMAND_ALLOCATE = 0x1,
> - BIOS_LINKER_LOADER_COMMAND_ADD_POINTER = 0x2,
> - BIOS_LINKER_LOADER_COMMAND_ADD_CHECKSUM = 0x3,
> -};
> -
> -enum {
> - BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH = 0x1,
> - BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG = 0x2,
> -};
> -
> -GArray *bios_linker_loader_init(void)
> -{
> - return g_array_new(false, true /* clear */, 1);
> -}
> -
> -/* Free linker wrapper and return the linker array. */
> -void *bios_linker_loader_cleanup(GArray *linker)
> -{
> - return g_array_free(linker, false);
> -}
> -
> -void bios_linker_loader_alloc(GArray *linker,
> - const char *file,
> - uint32_t alloc_align,
> - bool alloc_fseg)
> -{
> - BiosLinkerLoaderEntry entry;
> -
> - memset(&entry, 0, sizeof entry);
> - strncpy(entry.alloc.file, file, sizeof entry.alloc.file - 1);
> - entry.command = cpu_to_le32(BIOS_LINKER_LOADER_COMMAND_ALLOCATE);
> - entry.alloc.align = cpu_to_le32(alloc_align);
> - entry.alloc.zone = cpu_to_le32(alloc_fseg ?
> - BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG :
> - BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH);
> -
> - /* Alloc entries must come first, so prepend them */
> - g_array_prepend_vals(linker, &entry, sizeof entry);
> -}
> -
> -void bios_linker_loader_add_checksum(GArray *linker, const char *file,
> - void *table,
> - void *start, unsigned size,
> - uint8_t *checksum)
> -{
> - BiosLinkerLoaderEntry entry;
> -
> - memset(&entry, 0, sizeof entry);
> - strncpy(entry.cksum.file, file, sizeof entry.cksum.file - 1);
> - entry.command = cpu_to_le32(BIOS_LINKER_LOADER_COMMAND_ADD_CHECKSUM);
> - entry.cksum.offset = cpu_to_le32(checksum - (uint8_t *)table);
> - entry.cksum.start = cpu_to_le32((uint8_t *)start - (uint8_t *)table);
> - entry.cksum.length = cpu_to_le32(size);
> -
> - g_array_append_vals(linker, &entry, sizeof entry);
> -}
> -
> -void bios_linker_loader_add_pointer(GArray *linker,
> - const char *dest_file,
> - const char *src_file,
> - GArray *table, void *pointer,
> - uint8_t pointer_size)
> -{
> - BiosLinkerLoaderEntry entry;
> -
> - memset(&entry, 0, sizeof entry);
> - strncpy(entry.pointer.dest_file, dest_file,
> - sizeof entry.pointer.dest_file - 1);
> - strncpy(entry.pointer.src_file, src_file,
> - sizeof entry.pointer.src_file - 1);
> - entry.command = cpu_to_le32(BIOS_LINKER_LOADER_COMMAND_ADD_POINTER);
> - entry.pointer.offset = cpu_to_le32((gchar *)pointer - table->data);
> - entry.pointer.size = pointer_size;
> - assert(pointer_size == 1 || pointer_size == 2 ||
> - pointer_size == 4 || pointer_size == 8);
> -
> - g_array_append_vals(linker, &entry, sizeof entry);
> -}
> diff --git a/hw/i386/bios-linker-loader.h b/hw/i386/bios-linker-loader.h
> deleted file mode 100644
> index 498c0af..0000000
> --- a/hw/i386/bios-linker-loader.h
> +++ /dev/null
> @@ -1,27 +0,0 @@
> -#ifndef BIOS_LINKER_LOADER_H
> -#define BIOS_LINKER_LOADER_H
> -
> -#include <glib.h>
> -#include <stdbool.h>
> -#include <inttypes.h>
> -
> -GArray *bios_linker_loader_init(void);
> -
> -void bios_linker_loader_alloc(GArray *linker,
> - const char *file,
> - uint32_t alloc_align,
> - bool alloc_fseg);
> -
> -void bios_linker_loader_add_checksum(GArray *linker, const char *file,
> - void *table,
> - void *start, unsigned size,
> - uint8_t *checksum);
> -
> -void bios_linker_loader_add_pointer(GArray *linker,
> - const char *dest_file,
> - const char *src_file,
> - GArray *table, void *pointer,
> - uint8_t pointer_size);
> -
> -void *bios_linker_loader_cleanup(GArray *linker);
> -#endif
> diff --git a/include/hw/acpi/bios-linker-loader.h
> b/include/hw/acpi/bios-linker-loader.h
> new file mode 100644
> index 0000000..498c0af
> --- /dev/null
> +++ b/include/hw/acpi/bios-linker-loader.h
> @@ -0,0 +1,27 @@
> +#ifndef BIOS_LINKER_LOADER_H
> +#define BIOS_LINKER_LOADER_H
> +
> +#include <glib.h>
> +#include <stdbool.h>
> +#include <inttypes.h>
> +
> +GArray *bios_linker_loader_init(void);
> +
> +void bios_linker_loader_alloc(GArray *linker,
> + const char *file,
> + uint32_t alloc_align,
> + bool alloc_fseg);
> +
> +void bios_linker_loader_add_checksum(GArray *linker, const char *file,
> + void *table,
> + void *start, unsigned size,
> + uint8_t *checksum);
> +
> +void bios_linker_loader_add_pointer(GArray *linker,
> + const char *dest_file,
> + const char *src_file,
> + GArray *table, void *pointer,
> + uint8_t pointer_size);
> +
> +void *bios_linker_loader_cleanup(GArray *linker);
> +#endif
> --
> 1.8.3.1