Re: [Xen-devel] [PATCH v3 05/17] libxl/arm: Generate static ACPI DSDT table

[Shannon Zhao <zhaoshenglong@xxxxxxxxxx>]

On 2016/7/7 23:52, Wei Liu wrote:
> On Tue, Jul 05, 2016 at 11:12:35AM +0800, Shannon Zhao wrote:
>> > From: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
>> > 
>> > It uses static DSDT table like the way x86 uses. Currently the DSDT
>> > table only contains processor device objects and it generates the
>> > maximal objects which so far is 128.
>> > 
>> > Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
>> > ---
>> >  tools/libacpi/Makefile        | 15 ++++++++++++-
>> >  tools/libacpi/mk_dsdt.c       | 51 
>> > ++++++++++++++++++++++++++++++++-----------
>> >  tools/libxl/Makefile          |  5 ++++-
>> >  tools/libxl/libxl_arm_acpi.c  |  5 +++++
>> >  xen/include/public/arch-arm.h |  3 +++
>> >  5 files changed, 64 insertions(+), 15 deletions(-)
>> > 
>> > diff --git a/tools/libacpi/Makefile b/tools/libacpi/Makefile
>> > index 4068d9a..0401810 100644
>> > --- a/tools/libacpi/Makefile
>> > +++ b/tools/libacpi/Makefile
>> > @@ -22,6 +22,7 @@ MK_DSDT = $(ACPI_BUILD_DIR)/mk_dsdt
>> >  # Sources to be generated
>> >  C_SRC = $(ACPI_BUILD_DIR)/dsdt_anycpu.c $(ACPI_BUILD_DIR)/dsdt_15cpu.c 
>> >  C_SRC += $(ACPI_BUILD_DIR)/dsdt_anycpu_qemu_xen.c 
>> > $(ACPI_BUILD_DIR)/dsdt_pvh.c
>> > +C_SRC += $(ACPI_BUILD_DIR)/dsdt_anycpu_arm.c
>> >  H_SRC = $(ACPI_BUILD_DIR)/ssdt_s3.h $(ACPI_BUILD_DIR)/ssdt_s4.h 
>> > $(ACPI_BUILD_DIR)/ssdt_pm.h $(ACPI_BUILD_DIR)/ssdt_tpm.h
>> >  
>> >  vpath iasl $(PATH)
>> > @@ -35,7 +36,7 @@ $(H_SRC): $(ACPI_BUILD_DIR)/%.h: %.asl iasl
>> >    cd $(CURDIR)
>> >  
>> >  $(MK_DSDT): mk_dsdt.c
>> > -  $(HOSTCC) $(HOSTCFLAGS) $(CFLAGS_xeninclude) -o $@ mk_dsdt.c
>> > +  $(HOSTCC) $(HOSTCFLAGS) $(CFLAGS_xeninclude) -D__XEN_TOOLS__ -o $@ 
>> > mk_dsdt.c
> Why is this needed? Which unstable hypervisor interface you need in
> order to build this?
It needs GUEST_MAX_VCPUS in mk_dsdt.c while the GUEST_MAX_VCPUS is
defined under #if defined(__XEN__) || defined(__XEN_TOOLS__) in
xen/include/public/arch-arm.h

Thanks,
-- 
Shannon


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