From: "Jan Beulich" <JBeulich@suse.com>
To: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Wei Liu <wei.liu2@citrix.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>,
xen-devel@lists.xen.org, Keir Fraser <keir@xen.org>,
roger.pau@citrix.com
Subject: Re: [PATCH RFC 12/20] acpi/hvmloader: Link ACPI object files directly
Date: Mon, 06 Jun 2016 05:04:49 -0600 [thread overview]
Message-ID: <575574F102000078000F1F89@prv-mh.provo.novell.com> (raw)
In-Reply-To: <1459905949-10358-13-git-send-email-boris.ostrovsky@oracle.com>
>>> On 06.04.16 at 03:25, <boris.ostrovsky@oracle.com> wrote:
> ACPI sources will be available to various component which will build
> them according to their own rules. ACPI directory will only build
> sources.
"build sources" is kind of contradictory. How about "build intermediate
files"?
> --- a/tools/firmware/hvmloader/Makefile
> +++ b/tools/firmware/hvmloader/Makefile
> @@ -20,8 +20,6 @@
> XEN_ROOT = $(CURDIR)/../../..
> include $(XEN_ROOT)/tools/firmware/Rules.mk
>
> -SUBDIRS := acpi
> -
> # The HVM loader is started in 32-bit mode at the address below:
> LOADADDR = 0x100000
>
> @@ -33,10 +31,18 @@ CFLAGS += $(CFLAGS_xeninclude)
> # We mustn't use tools-only public interfaces.
> CFLAGS += -D__XEN_INTERFACE_VERSION__=__XEN_LATEST_INTERFACE_VERSION__
>
> +# ACPI table builder
> +ACPI_PATH = $(XEN_ROOT)/tools/firmware/hvmloader/acpi
> +vpath %.c $(ACPI_PATH)
Please don't - this would preclude having files with the same names
in hvmloader/ and (the future) libacpi/.
> @@ -95,7 +101,11 @@ all: subdirs-all
> ovmf.o rombios.o seabios.o hvmloader.o: roms.inc
> smbios.o: CFLAGS += -D__SMBIOS_DATE__="\"$(SMBIOS_REL_DATE)\""
>
> -hvmloader: $(OBJS) acpi/acpi.a
> +.NOTPARALLEL: $(ACPI_SRC)
And very clearly we will want to avoid the use of .NOTPARALLEL
anywhere in our trees.
> +$(ACPI_SRC):
> + $(MAKE) -C $(ACPI_PATH)
The more that you can't do this from multiple points in the tree. Did
you consider e.g. symlinking the subtree into the multiple parent
trees?
> --- a/tools/firmware/hvmloader/acpi/Makefile
> +++ b/tools/firmware/hvmloader/acpi/Makefile
> @@ -23,7 +23,7 @@ OBJS = $(patsubst %.c,%.o,$(C_SRC))
> CFLAGS += $(CFLAGS_xeninclude)
>
> vpath iasl $(PATH)
> -all: acpi.a
> +all: $(C_SRC) ssdt_s3.h ssdt_s4.h ssdt_pm.h ssdt_tpm.h
Why $(C_CRC)? Clearly build.c and static_tables.c don't need
listing here.
> --- a/tools/firmware/rombios/32bit/Makefile
> +++ b/tools/firmware/rombios/32bit/Makefile
> @@ -3,7 +3,7 @@ include $(XEN_ROOT)/tools/firmware/Rules.mk
>
> TARGET = 32bitbios_flat.h
>
> -CFLAGS += $(CFLAGS_xeninclude) -I..
> +CFLAGS += $(CFLAGS_xeninclude) -I.. -I$(XEN_ROOT)/tools/firmware/hvmloader/acpi/
As long as nothing speaks against doing so, I think such references
are better done in a relative manner. That way moving the entire
build tree won't affect the command lines passed to build tools.
Jan
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next prev parent reply other threads:[~2016-06-06 11:04 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-06 1:25 [PATCH RFC 00/20] Make ACPI builder available to components other than hvmloader Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 01/20] hvmloader: Provide hvmloader_acpi_build_tables() Boris Ostrovsky
2016-06-02 12:42 ` Jan Beulich
2016-06-02 16:39 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 02/20] acpi/hvmloader: Move acpi_info initialization out of ACPI code Boris Ostrovsky
2016-06-02 12:54 ` Jan Beulich
2016-06-02 16:54 ` Boris Ostrovsky
2016-06-03 12:13 ` Jan Beulich
2016-06-03 14:42 ` Boris Ostrovsky
2016-06-03 14:55 ` Jan Beulich
2016-06-03 15:29 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 03/20] acpi/hvmloader: Initialize vm_gid data outside " Boris Ostrovsky
2016-06-02 13:03 ` Jan Beulich
2016-06-02 17:01 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 04/20] acpi/hvmloader: Decide which SSDTs to build in hvmloader Boris Ostrovsky
2016-06-02 13:07 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 05/20] acpi/hvmloader: Move passthrough initialization from ACPI code Boris Ostrovsky
2016-06-02 13:52 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 06/20] acpi/hvmloader: Collect processor and NUMA info in hvmloader Boris Ostrovsky
2016-06-02 14:05 ` Jan Beulich
2016-06-02 17:18 ` Boris Ostrovsky
2016-06-03 12:16 ` Jan Beulich
2016-06-03 14:49 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 07/20] acpi/hvmloader: Set TIS header address " Boris Ostrovsky
2016-06-02 14:09 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 08/20] acpi/hvmloader: Make providing IOAPIC in MADT optional Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 09/20] acpi/hvmloader: Build WAET optionally Boris Ostrovsky
2016-06-02 14:32 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 10/20] acpi/hvmloader: Provide address of acpi_info as an argument to ACPI code Boris Ostrovsky
2016-06-03 16:03 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 11/20] acpi/hvmloader: Translate all addresses when assigning addresses in ACPI tables Boris Ostrovsky
2016-06-06 10:48 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 12/20] acpi/hvmloader: Link ACPI object files directly Boris Ostrovsky
2016-06-06 11:04 ` Jan Beulich [this message]
2016-06-06 14:20 ` Boris Ostrovsky
2016-06-06 14:29 ` Jan Beulich
2016-06-06 14:49 ` Boris Ostrovsky
2016-06-06 14:57 ` Jan Beulich
2016-06-06 15:31 ` Andrew Cooper
2016-06-06 15:41 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 13/20] acpi/hvmloader: Add stdio.h, string.h and x86.h Boris Ostrovsky
2016-06-06 11:31 ` Jan Beulich
2016-06-06 15:08 ` Boris Ostrovsky
2016-06-06 15:22 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 14/20] acpi/hvmloader: Replace mem_alloc() and virt_to_phys() with memory ops Boris Ostrovsky
2016-06-06 12:58 ` Jan Beulich
2016-06-06 15:46 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 15/20] acpi: Move ACPI code to xen/common/libacpi Boris Ostrovsky
2016-06-06 13:05 ` Jan Beulich
2016-06-06 16:09 ` Boris Ostrovsky
2016-06-07 6:20 ` Jan Beulich
2016-06-07 12:24 ` Roger Pau Monné
2016-06-07 14:32 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 16/20] x86/vlapic: Don't try to accept 8259 interrupt if !has_vpic() Boris Ostrovsky
2016-06-03 16:14 ` Jan Beulich
2016-06-03 17:50 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 17/20] x86: Allow LAPIC-only emulation_flags for HVM guests Boris Ostrovsky
2016-06-03 16:18 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 18/20] libxc/acpi: Build ACPI tables for HVMlite guests Boris Ostrovsky
2016-06-02 16:26 ` Roger Pau Monné
2016-06-06 12:03 ` Wei Liu
2016-06-06 15:15 ` Boris Ostrovsky
2016-06-16 8:54 ` Wei Liu
2016-06-16 13:07 ` Boris Ostrovsky
2016-06-06 13:29 ` Jan Beulich
2016-06-06 16:59 ` Boris Ostrovsky
2016-06-07 6:17 ` Jan Beulich
2016-06-07 13:59 ` Boris Ostrovsky
2016-06-07 14:10 ` Jan Beulich
2016-06-07 14:47 ` Boris Ostrovsky
2016-06-07 15:00 ` Jan Beulich
2016-04-06 1:25 ` [PATCH RFC 19/20] acpi: Set HW_REDUCED_ACPI in FADT if IOAPIC is not supported Boris Ostrovsky
2016-06-06 13:38 ` Jan Beulich
2016-06-06 17:31 ` Boris Ostrovsky
2016-06-07 6:06 ` Jan Beulich
2016-06-07 14:02 ` Boris Ostrovsky
2016-06-07 14:12 ` Jan Beulich
2016-06-07 15:17 ` Boris Ostrovsky
2016-06-07 15:41 ` Jan Beulich
2016-06-08 22:04 ` Boris Ostrovsky
2016-06-09 8:13 ` Roger Pau Monné
2016-06-09 8:41 ` Jan Beulich
2016-06-09 14:09 ` Boris Ostrovsky
2016-04-06 1:25 ` [PATCH RFC 20/20] acpi: Make ACPI builder available to hypervisor code Boris Ostrovsky
2016-06-06 13:48 ` Jan Beulich
2016-05-09 20:10 ` [PATCH RFC 00/20] Make ACPI builder available to components other than hvmloader Boris Ostrovsky
2016-05-10 7:25 ` Jan Beulich
2016-06-02 12:40 ` Jan Beulich
2016-06-02 16:37 ` Boris Ostrovsky
2016-06-03 7:18 ` Roger Pau Monné
2016-06-03 10:08 ` Jan Beulich
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