| Message ID | 20200917032033.2020-8-fangying1@huawei.com |
|---|---|
| State | New |
| Headers | show |
| Series | hw/arm/virt: Introduce cpu and cache topology support | expand |
On Thu, Sep 17, 2020 at 11:20:28AM +0800, Ying Fang wrote: > Add the processor hierarchy node structures to build ACPI information > for CPU topology. Three helpers are introduced: > > (1) build_socket_hierarchy for socket description structure > (2) build_processor_hierarchy for processor description structure > (3) build_smt_hierarchy for thread (logic processor) description structure > > Signed-off-by: Ying Fang <fangying1@huawei.com> > Signed-off-by: Henglong Fan <fanhenglong@huawei.com> > --- > hw/acpi/aml-build.c | 37 +++++++++++++++++++++++++++++++++++++ > include/hw/acpi/aml-build.h | 7 +++++++ > 2 files changed, 44 insertions(+) > > diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c > index f6fbc9b95d..13eb6e1345 100644 > --- a/hw/acpi/aml-build.c > +++ b/hw/acpi/aml-build.c > @@ -1754,6 +1754,43 @@ void build_slit(GArray *table_data, BIOSLinker *linker, MachineState *ms) > table_data->len - slit_start, 1, NULL, NULL); > } > > +/* > + * ACPI 6.3: 5.2.29.1 Processor hierarchy node structure (Type 0) > + */ > +void build_socket_hierarchy(GArray *tbl, uint32_t parent, uint32_t id) > +{ > + build_append_byte(tbl, 0); /* Type 0 - processor */ > + build_append_byte(tbl, 20); /* Length, no private resources */ > + build_append_int_noprefix(tbl, 0, 2); /* Reserved */ > + build_append_int_noprefix(tbl, 1, 4); /* Flags: Physical package */ > + build_append_int_noprefix(tbl, parent, 4); /* Parent */ > + build_append_int_noprefix(tbl, id, 4); /* ACPI processor ID */ > + build_append_int_noprefix(tbl, 0, 4); /* Number of private resources */ > +} > + > +void build_processor_hierarchy(GArray *tbl, uint32_t flags, > + uint32_t parent, uint32_t id) > +{ > + build_append_byte(tbl, 0); /* Type 0 - processor */ > + build_append_byte(tbl, 20); /* Length, no private resources */ > + build_append_int_noprefix(tbl, 0, 2); /* Reserved */ > + build_append_int_noprefix(tbl, flags, 4); /* Flags */ > + build_append_int_noprefix(tbl, parent, 4); /* Parent */ > + build_append_int_noprefix(tbl, id, 4); /* ACPI processor ID */ > + build_append_int_noprefix(tbl, 0, 4); /* Number of private resources */ > +} I see you took this from https://patchwork.ozlabs.org/project/qemu-devel/patch/20180704124923.32483-6-drjones@redhat.com/ (even though you neglected to mention that) I've tweaked my implementation of it slightly per Igor's comments for the refresh. See build_processor_hierarchy_node() in https://github.com/rhdrjones/qemu/commit/439b38d67ca1f2cbfa5b9892a822b651ebd05c11 > + > +void build_smt_hierarchy(GArray *tbl, uint32_t parent, uint32_t id) > +{ > + build_append_byte(tbl, 0); /* Type 0 - processor */ > + build_append_byte(tbl, 20); /* Length, add private resources */ > + build_append_int_noprefix(tbl, 0, 2); /* Reserved */ > + build_append_int_noprefix(tbl, 0x0e, 4); /* Processor is a thread */ > + build_append_int_noprefix(tbl, parent , 4); /* parent */ > + build_append_int_noprefix(tbl, id, 4); /* ACPI processor ID */ > + build_append_int_noprefix(tbl, 0, 4); /* Num of private resources */ > +} > + > /* build rev1/rev3/rev5.1 FADT */ > void build_fadt(GArray *tbl, BIOSLinker *linker, const AcpiFadtData *f, > const char *oem_id, const char *oem_table_id) > diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h > index d27da03d64..ff4c6a38f3 100644 > --- a/include/hw/acpi/aml-build.h > +++ b/include/hw/acpi/aml-build.h > @@ -435,6 +435,13 @@ void build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base, > > void build_slit(GArray *table_data, BIOSLinker *linker, MachineState *ms); > > +void build_socket_hierarchy(GArray *tbl, uint32_t parent, uint32_t id); > + > +void build_processor_hierarchy(GArray *tbl, uint32_t flags, > + uint32_t parent, uint32_t id); > + > +void build_smt_hierarchy(GArray *tbl, uint32_t parent, uint32_t id); Why add build_socket_hierarchy() and build_smt_hierarchy() ? > + > void build_fadt(GArray *tbl, BIOSLinker *linker, const AcpiFadtData *f, > const char *oem_id, const char *oem_table_id); > > -- > 2.23.0 > Thanks, drew
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index f6fbc9b95d..13eb6e1345 100644 --- a/hw/acpi/aml-build.c +++ b/hw/acpi/aml-build.c @@ -1754,6 +1754,43 @@ void build_slit(GArray *table_data, BIOSLinker *linker, MachineState *ms) table_data->len - slit_start, 1, NULL, NULL); } +/* + * ACPI 6.3: 5.2.29.1 Processor hierarchy node structure (Type 0) + */ +void build_socket_hierarchy(GArray *tbl, uint32_t parent, uint32_t id) +{ + build_append_byte(tbl, 0); /* Type 0 - processor */ + build_append_byte(tbl, 20); /* Length, no private resources */ + build_append_int_noprefix(tbl, 0, 2); /* Reserved */ + build_append_int_noprefix(tbl, 1, 4); /* Flags: Physical package */ + build_append_int_noprefix(tbl, parent, 4); /* Parent */ + build_append_int_noprefix(tbl, id, 4); /* ACPI processor ID */ + build_append_int_noprefix(tbl, 0, 4); /* Number of private resources */ +} + +void build_processor_hierarchy(GArray *tbl, uint32_t flags, + uint32_t parent, uint32_t id) +{ + build_append_byte(tbl, 0); /* Type 0 - processor */ + build_append_byte(tbl, 20); /* Length, no private resources */ + build_append_int_noprefix(tbl, 0, 2); /* Reserved */ + build_append_int_noprefix(tbl, flags, 4); /* Flags */ + build_append_int_noprefix(tbl, parent, 4); /* Parent */ + build_append_int_noprefix(tbl, id, 4); /* ACPI processor ID */ + build_append_int_noprefix(tbl, 0, 4); /* Number of private resources */ +} + +void build_smt_hierarchy(GArray *tbl, uint32_t parent, uint32_t id) +{ + build_append_byte(tbl, 0); /* Type 0 - processor */ + build_append_byte(tbl, 20); /* Length, add private resources */ + build_append_int_noprefix(tbl, 0, 2); /* Reserved */ + build_append_int_noprefix(tbl, 0x0e, 4); /* Processor is a thread */ + build_append_int_noprefix(tbl, parent , 4); /* parent */ + build_append_int_noprefix(tbl, id, 4); /* ACPI processor ID */ + build_append_int_noprefix(tbl, 0, 4); /* Num of private resources */ +} + /* build rev1/rev3/rev5.1 FADT */ void build_fadt(GArray *tbl, BIOSLinker *linker, const AcpiFadtData *f, const char *oem_id, const char *oem_table_id) diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h index d27da03d64..ff4c6a38f3 100644 --- a/include/hw/acpi/aml-build.h +++ b/include/hw/acpi/aml-build.h @@ -435,6 +435,13 @@ void build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base, void build_slit(GArray *table_data, BIOSLinker *linker, MachineState *ms); +void build_socket_hierarchy(GArray *tbl, uint32_t parent, uint32_t id); + +void build_processor_hierarchy(GArray *tbl, uint32_t flags, + uint32_t parent, uint32_t id); + +void build_smt_hierarchy(GArray *tbl, uint32_t parent, uint32_t id); + void build_fadt(GArray *tbl, BIOSLinker *linker, const AcpiFadtData *f, const char *oem_id, const char *oem_table_id);