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Re: [Qemu-devel] [PATCH v4] hw/acpi: extract acpi_add_rom_blob()
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From: |
Igor Mammedov |
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Subject: |
Re: [Qemu-devel] [PATCH v4] hw/acpi: extract acpi_add_rom_blob() |
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Date: |
Fri, 22 Mar 2019 11:03:34 +0100 |
On Fri, 22 Mar 2019 08:20:27 +0800
Wei Yang <address@hidden> wrote:
> On Thu, Mar 21, 2019 at 02:50:42PM +0100, Igor Mammedov wrote:
> >On Thu, 21 Mar 2019 08:21:53 +0800
> >Wei Yang <address@hidden> wrote:
> >
> >> arm and i386 has almost the same function acpi_add_rom_blob(), except
> >> giving different FWCfgCallback function.
> >>
> >> This patch moves acpi_add_rom_blob() to utils.c by passing
> >> FWCfgCallback to it.
> >>
> >> Signed-off-by: Wei Yang <address@hidden>
> >>
> >> ---
> >> v4:
> >> * extract -> moves
> >> * adjust comment in source to make checkpatch happy
> >> v3:
> >> * put acpi_add_rom_blob() to hw/acpi/utils.c
> >> v2:
> >> * remove unused header in original source file
> >> ---
> >> hw/acpi/Makefile.objs | 2 +-
> >> hw/acpi/utils.c | 36 ++++++++++++++++++++++++++++++++++++
> >> hw/arm/virt-acpi-build.c | 26 ++++++++++----------------
> >> hw/i386/acpi-build.c | 26 ++++++++++----------------
> >> include/hw/acpi/utils.h | 9 +++++++++
> >> 5 files changed, 66 insertions(+), 33 deletions(-)
> >> create mode 100644 hw/acpi/utils.c
> >> create mode 100644 include/hw/acpi/utils.h
> >>
> >> diff --git a/hw/acpi/Makefile.objs b/hw/acpi/Makefile.objs
> >> index 2d46e3789a..ba93c5b64a 100644
> >> --- a/hw/acpi/Makefile.objs
> >> +++ b/hw/acpi/Makefile.objs
> >> @@ -10,7 +10,7 @@ common-obj-$(call lnot,$(CONFIG_ACPI_X86)) += acpi-stub.o
> >>
> >> common-obj-y += acpi_interface.o
> >> common-obj-y += bios-linker-loader.o
> >> -common-obj-y += aml-build.o
> >> +common-obj-y += aml-build.o utils.o
> >> common-obj-$(CONFIG_TPM) += tpm.o
> >>
> >> common-obj-$(CONFIG_IPMI) += ipmi.o
> >> diff --git a/hw/acpi/utils.c b/hw/acpi/utils.c
> >> new file mode 100644
> >> index 0000000000..9747996c8c
> >> --- /dev/null
> >> +++ b/hw/acpi/utils.c
> >> @@ -0,0 +1,36 @@
> >> +/*
> >> + * Utilities for generating ACPI tables and passing them to Guests
> >> + *
> >> + * Copyright (C) 2019 Intel Corporation
> >> + * Copyright (C) 2019 Red Hat Inc
> >> + *
> >> + * Author: Wei Yang <address@hidden>
> >> + * Author: Igor Mammedov <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/osdep.h"
> >
> >> +#include <glib/gprintf.h>
> >is it necessary?
> >
>
> Will remove this.
>
> >> +#include "hw/acpi/aml-build.h"
> >> +#include "hw/acpi/utils.h"
> >
> >
> >> +
> >> +MemoryRegion *acpi_add_rom_blob(FWCfgCallback update, void *opaque,
> >> + GArray *blob, const char *name,
> >> + uint64_t max_size)
> >> +{
> >> + return rom_add_blob(name, blob->data, acpi_data_len(blob), max_size,
> >> -1,
> >> + name, update, opaque, NULL, true);
> >> +}
> >> +
> >> diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
> >> index 57679a89bf..a846f74a14 100644
> >> --- a/hw/arm/virt-acpi-build.c
> >> +++ b/hw/arm/virt-acpi-build.c
> >> @@ -37,9 +37,9 @@
> >> #include "hw/acpi/acpi.h"
> >> #include "hw/nvram/fw_cfg.h"
> >> #include "hw/acpi/bios-linker-loader.h"
> >> -#include "hw/loader.h"
> >> #include "hw/hw.h"
> >> #include "hw/acpi/aml-build.h"
> >> +#include "hw/acpi/utils.h"
> >> #include "hw/pci/pcie_host.h"
> >> #include "hw/pci/pci.h"
> >> #include "hw/arm/virt.h"
> >> @@ -881,14 +881,6 @@ static void virt_acpi_build_reset(void *build_opaque)
> >> build_state->patched = false;
> >> }
> >>
> >> -static MemoryRegion *acpi_add_rom_blob(AcpiBuildState *build_state,
> >> - GArray *blob, const char *name,
> >> - uint64_t max_size)
> >> -{
> >> - return rom_add_blob(name, blob->data, acpi_data_len(blob), max_size,
> >> -1,
> >> - name, virt_acpi_build_update, build_state, NULL,
> >> true);
> >> -}
> >> -
> >> static const VMStateDescription vmstate_virt_acpi_build = {
> >> .name = "virt_acpi_build",
> >> .version_id = 1,
> >> @@ -920,20 +912,22 @@ void virt_acpi_setup(VirtMachineState *vms)
> >> virt_acpi_build(vms, &tables);
> >>
> >> /* Now expose it all to Guest */
> >> - build_state->table_mr = acpi_add_rom_blob(build_state,
> >> tables.table_data,
> >> - ACPI_BUILD_TABLE_FILE,
> >> - ACPI_BUILD_TABLE_MAX_SIZE);
> >> + build_state->table_mr = acpi_add_rom_blob(virt_acpi_build_update,
> >> + build_state,
> >> tables.table_data,
> >> + ACPI_BUILD_TABLE_FILE,
> >> + ACPI_BUILD_TABLE_MAX_SIZE);
> >> assert(build_state->table_mr != NULL);
> >>
> >> build_state->linker_mr =
> >> - acpi_add_rom_blob(build_state, tables.linker->cmd_blob,
> >> - "etc/table-loader", 0);
> >> + acpi_add_rom_blob(virt_acpi_build_update, build_state,
> >> + tables.linker->cmd_blob, "etc/table-loader", 0);
> >>
> >> fw_cfg_add_file(vms->fw_cfg, ACPI_BUILD_TPMLOG_FILE,
> >> tables.tcpalog->data,
> >> acpi_data_len(tables.tcpalog));
> >>
> >> - build_state->rsdp_mr = acpi_add_rom_blob(build_state, tables.rsdp,
> >> - ACPI_BUILD_RSDP_FILE, 0);
> >> + build_state->rsdp_mr = acpi_add_rom_blob(virt_acpi_build_update,
> >> + build_state, tables.rsdp,
> >> + ACPI_BUILD_RSDP_FILE, 0);
> >>
> >> qemu_register_reset(virt_acpi_build_reset, build_state);
> >> virt_acpi_build_reset(build_state);
> >> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> >> index 416da318ae..b17d4a711d 100644
> >> --- a/hw/i386/acpi-build.c
> >> +++ b/hw/i386/acpi-build.c
> >> @@ -37,7 +37,6 @@
> >> #include "hw/acpi/cpu.h"
> >> #include "hw/nvram/fw_cfg.h"
> >> #include "hw/acpi/bios-linker-loader.h"
> >> -#include "hw/loader.h"
> >> #include "hw/isa/isa.h"
> >> #include "hw/block/fdc.h"
> >> #include "hw/acpi/memory_hotplug.h"
> >> @@ -58,6 +57,7 @@
> >> #include "hw/i386/x86-iommu.h"
> >>
> >> #include "hw/acpi/aml-build.h"
> >> +#include "hw/acpi/utils.h"
> >>
> >> #include "qom/qom-qobject.h"
> >> #include "hw/i386/amd_iommu.h"
> >> @@ -2842,14 +2842,6 @@ static void acpi_build_reset(void *build_opaque)
> >> build_state->patched = 0;
> >> }
> >>
> >> -static MemoryRegion *acpi_add_rom_blob(AcpiBuildState *build_state,
> >> - GArray *blob, const char *name,
> >> - uint64_t max_size)
> >> -{
> >> - return rom_add_blob(name, blob->data, acpi_data_len(blob), max_size,
> >> -1,
> >> - name, acpi_build_update, build_state, NULL, true);
> >> -}
> >> -
> >> static const VMStateDescription vmstate_acpi_build = {
> >> .name = "acpi_build",
> >> .version_id = 1,
> >> @@ -2891,14 +2883,15 @@ void acpi_setup(void)
> >> acpi_build(&tables, MACHINE(pcms));
> >>
> >> /* Now expose it all to Guest */
> >> - build_state->table_mr = acpi_add_rom_blob(build_state,
> >> tables.table_data,
> >> - ACPI_BUILD_TABLE_FILE,
> >> - ACPI_BUILD_TABLE_MAX_SIZE);
> >> + build_state->table_mr = acpi_add_rom_blob(acpi_build_update,
> >> + build_state,
> >> tables.table_data,
> >> + ACPI_BUILD_TABLE_FILE,
> >> + ACPI_BUILD_TABLE_MAX_SIZE);
> >> assert(build_state->table_mr != NULL);
> >>
> >> build_state->linker_mr =
> >> - acpi_add_rom_blob(build_state, tables.linker->cmd_blob,
> >> - "etc/table-loader", 0);
> >> + acpi_add_rom_blob(acpi_build_update, build_state,
> >> + tables.linker->cmd_blob, "etc/table-loader", 0);
> >>
> >> fw_cfg_add_file(pcms->fw_cfg, ACPI_BUILD_TPMLOG_FILE,
> >> tables.tcpalog->data, acpi_data_len(tables.tcpalog));
> >> @@ -2935,8 +2928,9 @@ void acpi_setup(void)
> >> build_state->rsdp_mr = NULL;
> >> } else {
> >> build_state->rsdp = NULL;
> >> - build_state->rsdp_mr = acpi_add_rom_blob(build_state, tables.rsdp,
> >> - ACPI_BUILD_RSDP_FILE,
> >> 0);
> >> + build_state->rsdp_mr = acpi_add_rom_blob(acpi_build_update,
> >> + build_state, tables.rsdp,
> >> + ACPI_BUILD_RSDP_FILE, 0);
> >> }
> >>
> >> qemu_register_reset(acpi_build_reset, build_state);
> >> diff --git a/include/hw/acpi/utils.h b/include/hw/acpi/utils.h
> >> new file mode 100644
> >> index 0000000000..5212113b7d
> >> --- /dev/null
> >> +++ b/include/hw/acpi/utils.h
> >> @@ -0,0 +1,9 @@
> >> +#ifndef HW_ACPI_UTILS_H
> >> +#define HW_ACPI_UTILS_H
> >> +
> >> +#include "hw/loader.h"
> >
> >why loader.h and not fw_cfg.h?
> >
>
> Which fw_cfg.h? There is only two fw_cfg.h in qemu.
>
> $ find . -name fw_cfg.h
> ./include/hw/nvram/fw_cfg.h
> ./tests/libqos/fw_cfg.h
>
> Replace hw/loader.h with hw/nvram/fw_cfg.h will fail.
Point here is to not to put in header a dependency that symbols in this header
do not need so you need a header that declares FWCfgCallback and that's all.
loader.h should go into utils.c file
>
> Do get your point here.
>
> >> +
> >> +MemoryRegion *acpi_add_rom_blob(FWCfgCallback update, void *opaque,
> >> + GArray *blob, const char *name,
> >> + uint64_t max_size);
> >> +#endif
>