| Message ID | 1452735417-5461-5-git-send-email-lersek@redhat.com |
|---|---|
| State | New |
| Headers | show |
On 01/14/16 11:24, Michael S. Tsirkin wrote: > On Thu, Jan 14, 2016 at 02:36:57AM +0100, Laszlo Ersek wrote: >> The Microsoft spec about the SLIC and MSDM ACPI tables at >> <http://go.microsoft.com/fwlink/p/?LinkId=234834> requires the OEM ID and >> OEM Table ID fields to be consistent between the SLIC and the RSDT/XSDT. >> That further affects the FADT, because a similar match between the FADT >> and the RSDT/XSDT is required by the ACPI spec in general. >> >> The stashed SLIC OEM identifiers can be ignored with the new >> >> -machine heed-slic-oem=no >> >> option. > > I'd prefer "use-slic-oem". That is, an option with the opposite meaning. Sounds doable. Would you like me to give that option a default value that had the equivalent effect? (That is, use-slic-oem=on by default?) If not, that might cause further trouble for users (they would have to figure out one more option). > But do we really expect people to use this? > Less knobs would be better ... I don't disagree; I only did this because you had suggested it in the earlier discussion: http://thread.gmane.org/gmane.comp.emulators.qemu/358854/focus=359239 Perhaps I misunderstood. FWIW, the SLIC spec from Microsoft is unambiguous about the OEM identity between SLIC and RSDT/XSDT (and consequently the FADT): that requirement is not optional. Turning off the OEM matching is therefore arguably useless, if the user provides a SLIC. I can certainly drop this knob if you think that's best. Thanks! Laszlo > >> Cc: "Michael S. Tsirkin" <mst@redhat.com> (supporter:ACPI/SMBIOS) >> Cc: Igor Mammedov <imammedo@redhat.com> (supporter:ACPI/SMBIOS) >> Cc: Paolo Bonzini <pbonzini@redhat.com> (maintainer:X86) >> Cc: Richard W.M. Jones <rjones@redhat.com> >> Cc: Aleksei Kovura <alex3kov@zoho.com> >> Cc: Michael Tokarev <mjt@tls.msk.ru> >> RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1248758 >> Signed-off-by: Laszlo Ersek <lersek@redhat.com> >> --- >> include/hw/i386/pc.h | 2 ++ >> hw/i386/acpi-build.c | 22 ++++++++++++++++++---- >> hw/i386/pc.c | 19 +++++++++++++++++++ >> qemu-options.hx | 10 +++++++++- >> 4 files changed, 48 insertions(+), 5 deletions(-) >> >> diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h >> index 588a33c..a762c29 100644 >> --- a/include/hw/i386/pc.h >> +++ b/include/hw/i386/pc.h >> @@ -56,6 +56,7 @@ struct PCMachineState { >> OnOffAuto vmport; >> OnOffAuto smm; >> bool nvdimm; >> + bool heed_slic_oem; >> >> /* RAM information (sizes, addresses, configuration): */ >> ram_addr_t below_4g_mem_size, above_4g_mem_size; >> @@ -67,6 +68,7 @@ struct PCMachineState { >> #define PC_MACHINE_VMPORT "vmport" >> #define PC_MACHINE_SMM "smm" >> #define PC_MACHINE_NVDIMM "nvdimm" >> +#define PC_MACHINE_HEED_SLIC_OEM "heed-slic-oem" >> >> /** >> * PCMachineClass: >> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c >> index 6408362..cf2aafc 100644 >> --- a/hw/i386/acpi-build.c >> +++ b/hw/i386/acpi-build.c >> @@ -337,7 +337,8 @@ static void fadt_setup(AcpiFadtDescriptorRev1 *fadt, AcpiPmInfo *pm) >> /* FADT */ >> static void >> build_fadt(GArray *table_data, GArray *linker, AcpiPmInfo *pm, >> - unsigned facs, unsigned dsdt) >> + unsigned facs, unsigned dsdt, >> + const char *oem_id, const char *oem_table_id) >> { >> AcpiFadtDescriptorRev1 *fadt = acpi_data_push(table_data, sizeof(*fadt)); >> >> @@ -358,7 +359,7 @@ build_fadt(GArray *table_data, GArray *linker, AcpiPmInfo *pm, >> fadt_setup(fadt, pm); >> >> build_header(linker, table_data, >> - (void *)fadt, "FACP", sizeof(*fadt), 1, NULL, NULL); >> + (void *)fadt, "FACP", sizeof(*fadt), 1, oem_id, oem_table_id); >> } >> >> static void >> @@ -2621,6 +2622,17 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables) >> uint8_t *u; >> size_t aml_len = 0; >> GArray *tables_blob = tables->table_data; >> + char *slic_oem_id = NULL; >> + char *slic_oem_table_id = NULL; >> + PCMachineState *pcms = PC_MACHINE(qdev_get_machine()); >> + bool heed_slic_oem = object_property_get_bool(OBJECT(pcms), >> + PC_MACHINE_HEED_SLIC_OEM, >> + &error_abort); >> + >> + if (heed_slic_oem) { >> + slic_oem_id = acpi_slic_oem_id; >> + slic_oem_table_id = acpi_slic_oem_table_id; >> + } >> >> acpi_get_cpu_info(&cpu); >> acpi_get_pm_info(&pm); >> @@ -2654,7 +2666,8 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables) >> >> /* ACPI tables pointed to by RSDT */ >> acpi_add_table(table_offsets, tables_blob); >> - build_fadt(tables_blob, tables->linker, &pm, facs, dsdt); >> + build_fadt(tables_blob, tables->linker, &pm, facs, dsdt, >> + slic_oem_id, slic_oem_table_id); >> >> ssdt = tables_blob->len; >> acpi_add_table(table_offsets, tables_blob); >> @@ -2705,7 +2718,8 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables) >> >> /* RSDT is pointed to by RSDP */ >> rsdt = tables_blob->len; >> - build_rsdt(tables_blob, tables->linker, table_offsets, NULL, NULL); >> + build_rsdt(tables_blob, tables->linker, table_offsets, >> + slic_oem_id, slic_oem_table_id); >> >> /* RSDP is in FSEG memory, so allocate it separately */ >> build_rsdp(tables->rsdp, tables->linker, rsdt); >> diff --git a/hw/i386/pc.c b/hw/i386/pc.c >> index c36b8cf..3e7a72a 100644 >> --- a/hw/i386/pc.c >> +++ b/hw/i386/pc.c >> @@ -1887,6 +1887,20 @@ static void pc_machine_set_nvdimm(Object *obj, bool value, Error **errp) >> pcms->nvdimm = value; >> } >> >> +static bool pc_machine_get_heed_slic_oem(Object *obj, Error **errp) >> +{ >> + PCMachineState *pcms = PC_MACHINE(obj); >> + >> + return pcms->heed_slic_oem; >> +} >> + >> +static void pc_machine_set_heed_slic_oem(Object *obj, bool value, Error **errp) >> +{ >> + PCMachineState *pcms = PC_MACHINE(obj); >> + >> + pcms->heed_slic_oem = value; >> +} >> + >> static void pc_machine_initfn(Object *obj) >> { >> PCMachineState *pcms = PC_MACHINE(obj); >> @@ -1926,6 +1940,11 @@ static void pc_machine_initfn(Object *obj) >> pcms->nvdimm = false; >> object_property_add_bool(obj, PC_MACHINE_NVDIMM, pc_machine_get_nvdimm, >> pc_machine_set_nvdimm, &error_abort); >> + >> + pcms->heed_slic_oem = true; >> + object_property_add_bool(obj, PC_MACHINE_HEED_SLIC_OEM, >> + pc_machine_get_heed_slic_oem, >> + pc_machine_set_heed_slic_oem, &error_abort); >> } >> >> static void pc_machine_reset(void) >> diff --git a/qemu-options.hx b/qemu-options.hx >> index 215d00d..e49964c 100644 >> --- a/qemu-options.hx >> +++ b/qemu-options.hx >> @@ -43,7 +43,8 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \ >> " aes-key-wrap=on|off controls support for AES key wrapping (default=on)\n" >> " dea-key-wrap=on|off controls support for DEA key wrapping (default=on)\n" >> " suppress-vmdesc=on|off disables self-describing migration (default=off)\n" >> - " nvdimm=on|off controls NVDIMM support (default=off)\n", >> + " nvdimm=on|off controls NVDIMM support (default=off)\n" >> + " heed_slic_oem=on|off adapts RSDT and FADT OEM identifiers to external SLIC (default=on)\n", >> QEMU_ARCH_ALL) >> STEXI >> @item -machine [type=]@var{name}[,prop=@var{value}[,...]] >> @@ -84,6 +85,13 @@ controls whether DEA wrapping keys will be created to allow >> execution of DEA cryptographic functions. The default is on. >> @item nvdimm=on|off >> Enables or disables NVDIMM support. The default is off. >> +@item heed_slic_oem=on|off >> +If the user provides an external SLIC ACPI table with the -acpitable option, >> +then heed_slic_oem=on will adapt the OEM ID and OEM Table ID fields of the >> +auto-generated RSDT and FADT tables to the same fields in the external SLIC. >> +When heed_slic_oem is turned off, the RSDT and FADT tables will have general, >> +QEMU-branded OEM ID and OEM Table ID values. The default is on. heed_slic_oem >> +makes no difference if no SLIC table is provided by the user. >> @end table >> ETEXI >> >> -- >> 1.8.3.1
On 01/14/16 17:44, Laszlo Ersek wrote: > On 01/14/16 11:24, Michael S. Tsirkin wrote: >> On Thu, Jan 14, 2016 at 02:36:57AM +0100, Laszlo Ersek wrote: >>> The Microsoft spec about the SLIC and MSDM ACPI tables at >>> <http://go.microsoft.com/fwlink/p/?LinkId=234834> requires the OEM ID and >>> OEM Table ID fields to be consistent between the SLIC and the RSDT/XSDT. >>> That further affects the FADT, because a similar match between the FADT >>> and the RSDT/XSDT is required by the ACPI spec in general. >>> >>> The stashed SLIC OEM identifiers can be ignored with the new >>> >>> -machine heed-slic-oem=no >>> >>> option. >> >> I'd prefer "use-slic-oem". > > That is, an option with the opposite meaning. Sounds doable. > > Would you like me to give that option a default value that had the > equivalent effect? (That is, use-slic-oem=on by default?) If not, that > might cause further trouble for users (they would have to figure out one > more option). Ugh, nevermind. You suggested another option name, but with the *same* meaning. Okay, that's really easy to change. But the more foundational question below remains open. Thanks Laszlo >> But do we really expect people to use this? >> Less knobs would be better ... > > I don't disagree; I only did this because you had suggested it in the > earlier discussion: > > http://thread.gmane.org/gmane.comp.emulators.qemu/358854/focus=359239 > > Perhaps I misunderstood. FWIW, the SLIC spec from Microsoft is > unambiguous about the OEM identity between SLIC and RSDT/XSDT (and > consequently the FADT): that requirement is not optional. Turning off > the OEM matching is therefore arguably useless, if the user provides a SLIC. > > I can certainly drop this knob if you think that's best. > > Thanks! > Laszlo > >> >>> Cc: "Michael S. Tsirkin" <mst@redhat.com> (supporter:ACPI/SMBIOS) >>> Cc: Igor Mammedov <imammedo@redhat.com> (supporter:ACPI/SMBIOS) >>> Cc: Paolo Bonzini <pbonzini@redhat.com> (maintainer:X86) >>> Cc: Richard W.M. Jones <rjones@redhat.com> >>> Cc: Aleksei Kovura <alex3kov@zoho.com> >>> Cc: Michael Tokarev <mjt@tls.msk.ru> >>> RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1248758 >>> Signed-off-by: Laszlo Ersek <lersek@redhat.com> >>> --- >>> include/hw/i386/pc.h | 2 ++ >>> hw/i386/acpi-build.c | 22 ++++++++++++++++++---- >>> hw/i386/pc.c | 19 +++++++++++++++++++ >>> qemu-options.hx | 10 +++++++++- >>> 4 files changed, 48 insertions(+), 5 deletions(-) >>> >>> diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h >>> index 588a33c..a762c29 100644 >>> --- a/include/hw/i386/pc.h >>> +++ b/include/hw/i386/pc.h >>> @@ -56,6 +56,7 @@ struct PCMachineState { >>> OnOffAuto vmport; >>> OnOffAuto smm; >>> bool nvdimm; >>> + bool heed_slic_oem; >>> >>> /* RAM information (sizes, addresses, configuration): */ >>> ram_addr_t below_4g_mem_size, above_4g_mem_size; >>> @@ -67,6 +68,7 @@ struct PCMachineState { >>> #define PC_MACHINE_VMPORT "vmport" >>> #define PC_MACHINE_SMM "smm" >>> #define PC_MACHINE_NVDIMM "nvdimm" >>> +#define PC_MACHINE_HEED_SLIC_OEM "heed-slic-oem" >>> >>> /** >>> * PCMachineClass: >>> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c >>> index 6408362..cf2aafc 100644 >>> --- a/hw/i386/acpi-build.c >>> +++ b/hw/i386/acpi-build.c >>> @@ -337,7 +337,8 @@ static void fadt_setup(AcpiFadtDescriptorRev1 *fadt, AcpiPmInfo *pm) >>> /* FADT */ >>> static void >>> build_fadt(GArray *table_data, GArray *linker, AcpiPmInfo *pm, >>> - unsigned facs, unsigned dsdt) >>> + unsigned facs, unsigned dsdt, >>> + const char *oem_id, const char *oem_table_id) >>> { >>> AcpiFadtDescriptorRev1 *fadt = acpi_data_push(table_data, sizeof(*fadt)); >>> >>> @@ -358,7 +359,7 @@ build_fadt(GArray *table_data, GArray *linker, AcpiPmInfo *pm, >>> fadt_setup(fadt, pm); >>> >>> build_header(linker, table_data, >>> - (void *)fadt, "FACP", sizeof(*fadt), 1, NULL, NULL); >>> + (void *)fadt, "FACP", sizeof(*fadt), 1, oem_id, oem_table_id); >>> } >>> >>> static void >>> @@ -2621,6 +2622,17 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables) >>> uint8_t *u; >>> size_t aml_len = 0; >>> GArray *tables_blob = tables->table_data; >>> + char *slic_oem_id = NULL; >>> + char *slic_oem_table_id = NULL; >>> + PCMachineState *pcms = PC_MACHINE(qdev_get_machine()); >>> + bool heed_slic_oem = object_property_get_bool(OBJECT(pcms), >>> + PC_MACHINE_HEED_SLIC_OEM, >>> + &error_abort); >>> + >>> + if (heed_slic_oem) { >>> + slic_oem_id = acpi_slic_oem_id; >>> + slic_oem_table_id = acpi_slic_oem_table_id; >>> + } >>> >>> acpi_get_cpu_info(&cpu); >>> acpi_get_pm_info(&pm); >>> @@ -2654,7 +2666,8 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables) >>> >>> /* ACPI tables pointed to by RSDT */ >>> acpi_add_table(table_offsets, tables_blob); >>> - build_fadt(tables_blob, tables->linker, &pm, facs, dsdt); >>> + build_fadt(tables_blob, tables->linker, &pm, facs, dsdt, >>> + slic_oem_id, slic_oem_table_id); >>> >>> ssdt = tables_blob->len; >>> acpi_add_table(table_offsets, tables_blob); >>> @@ -2705,7 +2718,8 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables) >>> >>> /* RSDT is pointed to by RSDP */ >>> rsdt = tables_blob->len; >>> - build_rsdt(tables_blob, tables->linker, table_offsets, NULL, NULL); >>> + build_rsdt(tables_blob, tables->linker, table_offsets, >>> + slic_oem_id, slic_oem_table_id); >>> >>> /* RSDP is in FSEG memory, so allocate it separately */ >>> build_rsdp(tables->rsdp, tables->linker, rsdt); >>> diff --git a/hw/i386/pc.c b/hw/i386/pc.c >>> index c36b8cf..3e7a72a 100644 >>> --- a/hw/i386/pc.c >>> +++ b/hw/i386/pc.c >>> @@ -1887,6 +1887,20 @@ static void pc_machine_set_nvdimm(Object *obj, bool value, Error **errp) >>> pcms->nvdimm = value; >>> } >>> >>> +static bool pc_machine_get_heed_slic_oem(Object *obj, Error **errp) >>> +{ >>> + PCMachineState *pcms = PC_MACHINE(obj); >>> + >>> + return pcms->heed_slic_oem; >>> +} >>> + >>> +static void pc_machine_set_heed_slic_oem(Object *obj, bool value, Error **errp) >>> +{ >>> + PCMachineState *pcms = PC_MACHINE(obj); >>> + >>> + pcms->heed_slic_oem = value; >>> +} >>> + >>> static void pc_machine_initfn(Object *obj) >>> { >>> PCMachineState *pcms = PC_MACHINE(obj); >>> @@ -1926,6 +1940,11 @@ static void pc_machine_initfn(Object *obj) >>> pcms->nvdimm = false; >>> object_property_add_bool(obj, PC_MACHINE_NVDIMM, pc_machine_get_nvdimm, >>> pc_machine_set_nvdimm, &error_abort); >>> + >>> + pcms->heed_slic_oem = true; >>> + object_property_add_bool(obj, PC_MACHINE_HEED_SLIC_OEM, >>> + pc_machine_get_heed_slic_oem, >>> + pc_machine_set_heed_slic_oem, &error_abort); >>> } >>> >>> static void pc_machine_reset(void) >>> diff --git a/qemu-options.hx b/qemu-options.hx >>> index 215d00d..e49964c 100644 >>> --- a/qemu-options.hx >>> +++ b/qemu-options.hx >>> @@ -43,7 +43,8 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \ >>> " aes-key-wrap=on|off controls support for AES key wrapping (default=on)\n" >>> " dea-key-wrap=on|off controls support for DEA key wrapping (default=on)\n" >>> " suppress-vmdesc=on|off disables self-describing migration (default=off)\n" >>> - " nvdimm=on|off controls NVDIMM support (default=off)\n", >>> + " nvdimm=on|off controls NVDIMM support (default=off)\n" >>> + " heed_slic_oem=on|off adapts RSDT and FADT OEM identifiers to external SLIC (default=on)\n", >>> QEMU_ARCH_ALL) >>> STEXI >>> @item -machine [type=]@var{name}[,prop=@var{value}[,...]] >>> @@ -84,6 +85,13 @@ controls whether DEA wrapping keys will be created to allow >>> execution of DEA cryptographic functions. The default is on. >>> @item nvdimm=on|off >>> Enables or disables NVDIMM support. The default is off. >>> +@item heed_slic_oem=on|off >>> +If the user provides an external SLIC ACPI table with the -acpitable option, >>> +then heed_slic_oem=on will adapt the OEM ID and OEM Table ID fields of the >>> +auto-generated RSDT and FADT tables to the same fields in the external SLIC. >>> +When heed_slic_oem is turned off, the RSDT and FADT tables will have general, >>> +QEMU-branded OEM ID and OEM Table ID values. The default is on. heed_slic_oem >>> +makes no difference if no SLIC table is provided by the user. >>> @end table >>> ETEXI >>> >>> -- >>> 1.8.3.1 > >
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 588a33c..a762c29 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -56,6 +56,7 @@ struct PCMachineState { OnOffAuto vmport; OnOffAuto smm; bool nvdimm; + bool heed_slic_oem; /* RAM information (sizes, addresses, configuration): */ ram_addr_t below_4g_mem_size, above_4g_mem_size; @@ -67,6 +68,7 @@ struct PCMachineState { #define PC_MACHINE_VMPORT "vmport" #define PC_MACHINE_SMM "smm" #define PC_MACHINE_NVDIMM "nvdimm" +#define PC_MACHINE_HEED_SLIC_OEM "heed-slic-oem" /** * PCMachineClass: diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 6408362..cf2aafc 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -337,7 +337,8 @@ static void fadt_setup(AcpiFadtDescriptorRev1 *fadt, AcpiPmInfo *pm) /* FADT */ static void build_fadt(GArray *table_data, GArray *linker, AcpiPmInfo *pm, - unsigned facs, unsigned dsdt) + unsigned facs, unsigned dsdt, + const char *oem_id, const char *oem_table_id) { AcpiFadtDescriptorRev1 *fadt = acpi_data_push(table_data, sizeof(*fadt)); @@ -358,7 +359,7 @@ build_fadt(GArray *table_data, GArray *linker, AcpiPmInfo *pm, fadt_setup(fadt, pm); build_header(linker, table_data, - (void *)fadt, "FACP", sizeof(*fadt), 1, NULL, NULL); + (void *)fadt, "FACP", sizeof(*fadt), 1, oem_id, oem_table_id); } static void @@ -2621,6 +2622,17 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables) uint8_t *u; size_t aml_len = 0; GArray *tables_blob = tables->table_data; + char *slic_oem_id = NULL; + char *slic_oem_table_id = NULL; + PCMachineState *pcms = PC_MACHINE(qdev_get_machine()); + bool heed_slic_oem = object_property_get_bool(OBJECT(pcms), + PC_MACHINE_HEED_SLIC_OEM, + &error_abort); + + if (heed_slic_oem) { + slic_oem_id = acpi_slic_oem_id; + slic_oem_table_id = acpi_slic_oem_table_id; + } acpi_get_cpu_info(&cpu); acpi_get_pm_info(&pm); @@ -2654,7 +2666,8 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables) /* ACPI tables pointed to by RSDT */ acpi_add_table(table_offsets, tables_blob); - build_fadt(tables_blob, tables->linker, &pm, facs, dsdt); + build_fadt(tables_blob, tables->linker, &pm, facs, dsdt, + slic_oem_id, slic_oem_table_id); ssdt = tables_blob->len; acpi_add_table(table_offsets, tables_blob); @@ -2705,7 +2718,8 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables) /* RSDT is pointed to by RSDP */ rsdt = tables_blob->len; - build_rsdt(tables_blob, tables->linker, table_offsets, NULL, NULL); + build_rsdt(tables_blob, tables->linker, table_offsets, + slic_oem_id, slic_oem_table_id); /* RSDP is in FSEG memory, so allocate it separately */ build_rsdp(tables->rsdp, tables->linker, rsdt); diff --git a/hw/i386/pc.c b/hw/i386/pc.c index c36b8cf..3e7a72a 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1887,6 +1887,20 @@ static void pc_machine_set_nvdimm(Object *obj, bool value, Error **errp) pcms->nvdimm = value; } +static bool pc_machine_get_heed_slic_oem(Object *obj, Error **errp) +{ + PCMachineState *pcms = PC_MACHINE(obj); + + return pcms->heed_slic_oem; +} + +static void pc_machine_set_heed_slic_oem(Object *obj, bool value, Error **errp) +{ + PCMachineState *pcms = PC_MACHINE(obj); + + pcms->heed_slic_oem = value; +} + static void pc_machine_initfn(Object *obj) { PCMachineState *pcms = PC_MACHINE(obj); @@ -1926,6 +1940,11 @@ static void pc_machine_initfn(Object *obj) pcms->nvdimm = false; object_property_add_bool(obj, PC_MACHINE_NVDIMM, pc_machine_get_nvdimm, pc_machine_set_nvdimm, &error_abort); + + pcms->heed_slic_oem = true; + object_property_add_bool(obj, PC_MACHINE_HEED_SLIC_OEM, + pc_machine_get_heed_slic_oem, + pc_machine_set_heed_slic_oem, &error_abort); } static void pc_machine_reset(void) diff --git a/qemu-options.hx b/qemu-options.hx index 215d00d..e49964c 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -43,7 +43,8 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \ " aes-key-wrap=on|off controls support for AES key wrapping (default=on)\n" " dea-key-wrap=on|off controls support for DEA key wrapping (default=on)\n" " suppress-vmdesc=on|off disables self-describing migration (default=off)\n" - " nvdimm=on|off controls NVDIMM support (default=off)\n", + " nvdimm=on|off controls NVDIMM support (default=off)\n" + " heed_slic_oem=on|off adapts RSDT and FADT OEM identifiers to external SLIC (default=on)\n", QEMU_ARCH_ALL) STEXI @item -machine [type=]@var{name}[,prop=@var{value}[,...]] @@ -84,6 +85,13 @@ controls whether DEA wrapping keys will be created to allow execution of DEA cryptographic functions. The default is on. @item nvdimm=on|off Enables or disables NVDIMM support. The default is off. +@item heed_slic_oem=on|off +If the user provides an external SLIC ACPI table with the -acpitable option, +then heed_slic_oem=on will adapt the OEM ID and OEM Table ID fields of the +auto-generated RSDT and FADT tables to the same fields in the external SLIC. +When heed_slic_oem is turned off, the RSDT and FADT tables will have general, +QEMU-branded OEM ID and OEM Table ID values. The default is on. heed_slic_oem +makes no difference if no SLIC table is provided by the user. @end table ETEXI
The Microsoft spec about the SLIC and MSDM ACPI tables at <http://go.microsoft.com/fwlink/p/?LinkId=234834> requires the OEM ID and OEM Table ID fields to be consistent between the SLIC and the RSDT/XSDT. That further affects the FADT, because a similar match between the FADT and the RSDT/XSDT is required by the ACPI spec in general. The stashed SLIC OEM identifiers can be ignored with the new -machine heed-slic-oem=no option. Cc: "Michael S. Tsirkin" <mst@redhat.com> (supporter:ACPI/SMBIOS) Cc: Igor Mammedov <imammedo@redhat.com> (supporter:ACPI/SMBIOS) Cc: Paolo Bonzini <pbonzini@redhat.com> (maintainer:X86) Cc: Richard W.M. Jones <rjones@redhat.com> Cc: Aleksei Kovura <alex3kov@zoho.com> Cc: Michael Tokarev <mjt@tls.msk.ru> RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1248758 Signed-off-by: Laszlo Ersek <lersek@redhat.com> --- include/hw/i386/pc.h | 2 ++ hw/i386/acpi-build.c | 22 ++++++++++++++++++---- hw/i386/pc.c | 19 +++++++++++++++++++ qemu-options.hx | 10 +++++++++- 4 files changed, 48 insertions(+), 5 deletions(-) -- 1.8.3.1