[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v3 39/62] arm/acpi: Read acpi memory info from uefi
On Tue, 17 Nov 2015, shannon.zhao@xxxxxxxxxx wrote: > From: Parth Dixit <parth.dixit@xxxxxxxxxx> > > ACPI memory is seperate from conventional memory and should be marked > as reserved while passing to DOM0. Create a new meminfo structure to > store all the acpi tables listed in uefi. > > Signed-off-by: Parth Dixit <parth.dixit@xxxxxxxxxx> > Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx> Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> > xen/arch/arm/efi/efi-boot.h | 23 +++++++++++++++++++++++ > 1 file changed, 23 insertions(+) > > diff --git a/xen/arch/arm/efi/efi-boot.h b/xen/arch/arm/efi/efi-boot.h > index e427e5f..c58caca 100644 > --- a/xen/arch/arm/efi/efi-boot.h > +++ b/xen/arch/arm/efi/efi-boot.h > @@ -17,6 +17,9 @@ void __flush_dcache_area(const void *vaddr, unsigned long > size); > static struct file __initdata dtbfile; > static void __initdata *fdt; > static void __initdata *memmap; > +#ifdef CONFIG_ACPI > +static struct meminfo __initdata acpi_mem; > +#endif > > static int __init setup_chosen_node(void *fdt, int *addr_cells, int > *size_cells) > { > @@ -129,6 +132,9 @@ static EFI_STATUS __init > efi_process_memory_map_bootinfo(EFI_MEMORY_DESCRIPTOR * > { > int Index; > int i = 0; > +#ifdef CONFIG_ACPI > + int j = 0; > +#endif > EFI_MEMORY_DESCRIPTOR *desc_ptr = map; > > for ( Index = 0; Index < (mmap_size / desc_size); Index++ ) > @@ -148,10 +154,27 @@ static EFI_STATUS __init > efi_process_memory_map_bootinfo(EFI_MEMORY_DESCRIPTOR * > bootinfo.mem.bank[i].size = desc_ptr->NumberOfPages * > EFI_PAGE_SIZE; > ++i; > } > +#ifdef CONFIG_ACPI > + else if ( desc_ptr->Type == EfiACPIReclaimMemory ) > + { > + if ( j >= NR_MEM_BANKS ) > + { > + PrintStr(L"Error: All " __stringify(NR_MEM_BANKS) > + " acpi meminfo mem banks exhausted.\r\n"); > + return EFI_LOAD_ERROR; > + } > + acpi_mem.bank[j].start = desc_ptr->PhysicalStart; > + acpi_mem.bank[j].size = desc_ptr->NumberOfPages * EFI_PAGE_SIZE; > + ++j; > + } > +#endif > desc_ptr = NextMemoryDescriptor(desc_ptr, desc_size); > } > > bootinfo.mem.nr_banks = i; > +#ifdef CONFIG_ACPI > + acpi_mem.nr_banks = j; > +#endif > return EFI_SUCCESS; > } > > -- > 2.1.0 > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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