[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v6 2/3] ACPI: add config for BIOS table scan
On 1/30/16 3:47 AM, Shannon Zhao wrote: > From: Graeme Gregory <graeme.gregory@xxxxxxxxxx> > > With the addition of ARM64 that does not have a traditional BIOS to > scan, add a config option which is selected on x86 (ia64 doesn't need > it either, it is EFI/UEFI based system) to do the traditional BIOS > scanning for tables. > > Signed-off-by: Graeme Gregory <graeme.gregory@xxxxxxxxxx> > Signed-off-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > [Linux commit 8a1664be0b922dd6afd60eca96a992ef5ec22c40] > [Include <xen/kconfig.h> in osl.c so that it could use IS_ENABLED] > Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx> Reviewed-by: Doug Goldstein <cardoe@xxxxxxxxxx> [for Kconfig bits] > --- > xen/arch/x86/Kconfig | 1 + > xen/drivers/acpi/Kconfig | 3 +++ > xen/drivers/acpi/osl.c | 5 ++++- > 3 files changed, 8 insertions(+), 1 deletion(-) > > diff --git a/xen/arch/x86/Kconfig b/xen/arch/x86/Kconfig > index 7d2ed96..9fdd3b1 100644 > --- a/xen/arch/x86/Kconfig > +++ b/xen/arch/x86/Kconfig > @@ -3,6 +3,7 @@ config X86_64 > > config X86 > def_bool y > + select ACPI_LEGACY_TABLES_LOOKUP > select COMPAT > select HAS_ACPI > select HAS_CPUFREQ > diff --git a/xen/drivers/acpi/Kconfig b/xen/drivers/acpi/Kconfig > index 11ab5e4..82d73ca 100644 > --- a/xen/drivers/acpi/Kconfig > +++ b/xen/drivers/acpi/Kconfig > @@ -2,3 +2,6 @@ > # Select HAS_ACPI if ACPI is supported > config HAS_ACPI > bool > + > +config ACPI_LEGACY_TABLES_LOOKUP > + bool > diff --git a/xen/drivers/acpi/osl.c b/xen/drivers/acpi/osl.c > index ce15470..2f1d723 100644 > --- a/xen/drivers/acpi/osl.c > +++ b/xen/drivers/acpi/osl.c > @@ -38,6 +38,7 @@ > #include <xen/domain_page.h> > #include <xen/efi.h> > #include <xen/vmap.h> > +#include <xen/kconfig.h> Committer should alphabetize. > > #define _COMPONENT ACPI_OS_SERVICES > ACPI_MODULE_NAME("osl") > @@ -75,12 +76,14 @@ acpi_physical_address __init > acpi_os_get_root_pointer(void) > "System description tables not found\n"); > return 0; > } > - } else { > + } else if (IS_ENABLED(CONFIG_ACPI_LEGACY_TABLES_LOOKUP)) { > acpi_physical_address pa = 0; > > acpi_find_root_pointer(&pa); > return pa; > } > + > + return 0; > } > > void __iomem * > -- Doug Goldstein Attachment:
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