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/******************************************************************************
* config.h
*
* A Linux-style configuration list.
*/
#ifndef __ARM_CONFIG_H__
#define __ARM_CONFIG_H__
#if defined(CONFIG_ARM_64)
# define LONG_BYTEORDER 3
# define ELFSIZE 64
#else
# define LONG_BYTEORDER 2
# define ELFSIZE 32
#endif
#define BYTES_PER_LONG (1 << LONG_BYTEORDER)
#define BITS_PER_LONG (BYTES_PER_LONG << 3)
#define POINTER_ALIGN BYTES_PER_LONG
#define BITS_PER_LLONG 64
/* xen_ulong_t is always 64 bits */
#define BITS_PER_XEN_ULONG 64
#define CONFIG_PAGING_LEVELS 3
#define CONFIG_ARM 1
#define CONFIG_ARM_L1_CACHE_SHIFT 7 /* XXX */
#define CONFIG_SMP 1
#define CONFIG_IRQ_HAS_MULTIPLE_ACTION 1
#define CONFIG_PAGEALLOC_MAX_ORDER 18
#define CONFIG_DOMU_MAX_ORDER 9
#define CONFIG_HWDOM_MAX_ORDER 10
#define OPT_CONSOLE_STR "dtuart"
#ifdef CONFIG_ARM_64
#define MAX_VIRT_CPUS 128u
#else
#define MAX_VIRT_CPUS 8u
#endif
#define INVALID_VCPU_ID MAX_VIRT_CPUS
#define __LINUX_ARM_ARCH__ 7
#define CONFIG_AEABI
/* Linkage for ARM */
#ifdef __ASSEMBLY__
#define ALIGN .align 2
#define ENTRY(name) \
.globl name; \
ALIGN; \
name:
#define GLOBAL(name) \
.globl name; \
name:
#define END(name) \
.size name, .-name
#define ENDPROC(name) \
.type name, %function; \
END(name)
#endif
#include <xen/const.h>
#include <xen/page-size.h>
/*
* ARM32 layout:
* 0 - 2M Unmapped
* 2M - 4M Xen text, data, bss
* 4M - 6M Fixmap: special-purpose 4K mapping slots
* 6M - 10M Early boot mapping of FDT
* 10M - 12M Livepatch vmap (if compiled in)
*
* 32M - 128M Frametable: 32 bytes per page for 12GB of RAM
* 256M - 1G VMAP: ioremap and early_ioremap use this virtual address
* space
*
* 1G - 2G Xenheap: always-mapped memory
* 2G - 4G Domheap: on-demand-mapped
*
* ARM64 layout:
* 0x0000000000000000 - 0x000001ffffffffff (2TB, L0 slots [0..3])
*
* Reserved to identity map Xen
*
* 0x0000020000000000 - 0x0000027fffffffff (512GB, L0 slot [4])
* (Relative offsets)
* 0 - 2M Unmapped
* 2M - 4M Xen text, data, bss
* 4M - 6M Fixmap: special-purpose 4K mapping slots
* 6M - 10M Early boot mapping of FDT
* 10M - 12M Livepatch vmap (if compiled in)
*
* 1G - 2G VMAP: ioremap and early_ioremap
*
* 32G - 64G Frametable: 56 bytes per page for 2TB of RAM
*
* 0x0000028000000000 - 0x00007fffffffffff (125TB, L0 slots [5..255])
* Unused
*
* 0x0000800000000000 - 0x000084ffffffffff (5TB, L0 slots [256..265])
* 1:1 mapping of RAM
*
* 0x0000850000000000 - 0x0000ffffffffffff (123TB, L0 slots [266..511])
* Unused
*/
#ifdef CONFIG_ARM_32
#define XEN_VIRT_START _AT(vaddr_t, MB(2))
#else
#define SLOT0_ENTRY_BITS 39
#define SLOT0(slot) (_AT(vaddr_t,slot) << SLOT0_ENTRY_BITS)
#define SLOT0_ENTRY_SIZE SLOT0(1)
#define XEN_VIRT_START (SLOT0(4) + _AT(vaddr_t, MB(2)))
#endif
#define XEN_VIRT_SIZE _AT(vaddr_t, MB(2))
#define FIXMAP_VIRT_START (XEN_VIRT_START + XEN_VIRT_SIZE)
#define FIXMAP_VIRT_SIZE _AT(vaddr_t, MB(2))
#define FIXMAP_ADDR(n) (FIXMAP_VIRT_START + (n) * PAGE_SIZE)
#define BOOT_FDT_VIRT_START (FIXMAP_VIRT_START + FIXMAP_VIRT_SIZE)
#define BOOT_FDT_VIRT_SIZE _AT(vaddr_t, MB(4))
#ifdef CONFIG_LIVEPATCH
#define LIVEPATCH_VMAP_START (BOOT_FDT_VIRT_START + BOOT_FDT_VIRT_SIZE)
#define LIVEPATCH_VMAP_SIZE _AT(vaddr_t, MB(2))
#endif
#define HYPERVISOR_VIRT_START XEN_VIRT_START
#ifdef CONFIG_ARM_32
#define CONFIG_SEPARATE_XENHEAP 1
#define FRAMETABLE_VIRT_START _AT(vaddr_t, MB(32))
#define FRAMETABLE_SIZE MB(128-32)
#define FRAMETABLE_NR (FRAMETABLE_SIZE / sizeof(*frame_table))
#define VMAP_VIRT_START _AT(vaddr_t, MB(256))
#define VMAP_VIRT_SIZE _AT(vaddr_t, GB(1) - MB(256))
#define XENHEAP_VIRT_START _AT(vaddr_t, GB(1))
#define XENHEAP_VIRT_SIZE _AT(vaddr_t, GB(1))
#define DOMHEAP_VIRT_START _AT(vaddr_t, GB(2))
#define DOMHEAP_VIRT_SIZE _AT(vaddr_t, GB(2))
#define DOMHEAP_ENTRIES 1024 /* 1024 2MB mapping slots */
/* Number of domheap pagetable pages required at the second level (2MB mappings) */
#define DOMHEAP_SECOND_PAGES (DOMHEAP_VIRT_SIZE >> FIRST_SHIFT)
/*
* The temporary area is overlapping with the domheap area. This may
* be used to create an alias of the first slot containing Xen mappings
* when turning on/off the MMU.
*/
#define TEMPORARY_AREA_FIRST_SLOT (first_table_offset(DOMHEAP_VIRT_START))
/* Calculate the address in the temporary area */
#define TEMPORARY_AREA_ADDR(addr) \
(((addr) & ~XEN_PT_LEVEL_MASK(1)) | \
(TEMPORARY_AREA_FIRST_SLOT << XEN_PT_LEVEL_SHIFT(1)))
#define TEMPORARY_XEN_VIRT_START TEMPORARY_AREA_ADDR(XEN_VIRT_START)
#else /* ARM_64 */
#define IDENTITY_MAPPING_AREA_NR_L0 4
#define VMAP_VIRT_START (SLOT0(4) + GB(1))
#define VMAP_VIRT_SIZE GB(1)
#define FRAMETABLE_VIRT_START (SLOT0(4) + GB(32))
#define FRAMETABLE_SIZE GB(32)
#define FRAMETABLE_NR (FRAMETABLE_SIZE / sizeof(*frame_table))
#define DIRECTMAP_VIRT_START SLOT0(256)
#define DIRECTMAP_SIZE (SLOT0_ENTRY_SIZE * (266 - 256))
#define DIRECTMAP_VIRT_END (DIRECTMAP_VIRT_START + DIRECTMAP_SIZE - 1)
#define XENHEAP_VIRT_START directmap_virt_start
#define HYPERVISOR_VIRT_END DIRECTMAP_VIRT_END
#endif
#define NR_hypercalls 64
#define STACK_ORDER 3
#define STACK_SIZE (PAGE_SIZE << STACK_ORDER)
#ifndef __ASSEMBLY__
extern unsigned long xen_phys_start;
extern unsigned long xenheap_phys_end;
extern unsigned long frametable_virt_end;
#endif
#define watchdog_disable() ((void)0)
#define watchdog_enable() ((void)0)
#if defined(__ASSEMBLY__) && !defined(LINKER_SCRIPT)
#include <asm/asm_defns.h>
#include <asm/macros.h>
#endif
#endif /* __ARM_CONFIG_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
*/
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