arm: header files

A simple implementation of everything under asm-arm and arch-arm.h; some
of these files are shamelessly taken from Linux.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>

1 files changed, 122 insertions, 0 deletions

diff --git a/xen/include/asm-arm/config.h b/xen/include/asm-arm/config.h
new file mode 100644
index 0000000000..12285dd19c
--- /dev/null
+++ b/xen/include/asm-arm/config.h
@@ -0,0 +1,122 @@
+/******************************************************************************
+ * config.h
+ *
+ * A Linux-style configuration list.
+ */
+
+#ifndef __ARM_CONFIG_H__
+#define __ARM_CONFIG_H__
+
+#define CONFIG_PAGING_LEVELS 3
+
+#define CONFIG_ARM 1
+
+#define CONFIG_ARM_L1_CACHE_SHIFT 7 /* XXX */
+
+#define CONFIG_SMP 1
+
+#define CONFIG_DOMAIN_PAGE 1
+
+#define OPT_CONSOLE_STR "com1"
+
+#ifdef MAX_PHYS_CPUS
+#define NR_CPUS MAX_PHYS_CPUS
+#else
+#define NR_CPUS 128
+#endif
+
+#define MAX_VIRT_CPUS 128 /* XXX */
+#define MAX_HVM_VCPUS MAX_VIRT_CPUS
+
+#define asmlinkage /* Nothing needed */
+
+/* Linkage for ARM */
+#define __ALIGN .align 2
+#define __ALIGN_STR ".align 2"
+#ifdef __ASSEMBLY__
+#define ALIGN __ALIGN
+#define ALIGN_STR __ALIGN_STR
+#define ENTRY(name)                             \
+  .globl name;                                  \
+  ALIGN;                                        \
+  name:
+#define END(name) \
+  .size name, .-name
+#define ENDPROC(name) \
+  .type name, %function; \
+  END(name)
+#endif
+
+/*
+ * Memory layout:
+ *  0  -   2M   Unmapped
+ *  2M -   4M   Xen text, data, bss
+ *  4M -   6M   Fixmap: special-purpose 4K mapping slots
+ *
+ * 32M - 128M   Frametable: 24 bytes per page for 16GB of RAM
+ *
+ *  1G -   2G   Xenheap: always-mapped memory
+ *  2G -   4G   Domheap: on-demand-mapped
+ */
+
+#define XEN_VIRT_START         0x00200000
+#define FIXMAP_ADDR(n)        (0x00400000 + (n) * PAGE_SIZE)
+#define FRAMETABLE_VIRT_START  0x02000000
+#define XENHEAP_VIRT_START     0x40000000
+#define DOMHEAP_VIRT_START     0x80000000
+
+#define HYPERVISOR_VIRT_START mk_unsigned_long(XEN_VIRT_START)
+
+#define DOMHEAP_ENTRIES        1024  /* 1024 2MB mapping slots */
+
+/* Fixmap slots */
+#define FIXMAP_CONSOLE  0  /* The primary UART */
+#define FIXMAP_PT       1  /* Temporary mappings of pagetable pages */
+#define FIXMAP_MISC     2  /* Ephemeral mappings of hardware */
+#define FIXMAP_GICD     3  /* Interrupt controller: distributor registers */
+#define FIXMAP_GICC1    4  /* Interrupt controller: CPU registers (first page) */
+#define FIXMAP_GICC2    5  /* Interrupt controller: CPU registers (second page) */
+#define FIXMAP_GICH     6  /* Interrupt controller: virtual interface control registers */
+
+#define PAGE_SHIFT              12
+
+#ifndef __ASSEMBLY__
+#define PAGE_SIZE           (1L << PAGE_SHIFT)
+#else
+#define PAGE_SIZE           (1 << PAGE_SHIFT)
+#endif
+#define PAGE_MASK           (~(PAGE_SIZE-1))
+#define PAGE_FLAG_MASK      (~0)
+
+#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 supervisor_mode_kernel (0)
+
+#define watchdog_disable() ((void)0)
+#define watchdog_enable()  ((void)0)
+
+/* Board-specific: base address of PL011 UART */
+#define EARLY_UART_ADDRESS 0x1c090000
+/* Board-specific: base address of GIC + its regs */
+#define GIC_BASE_ADDRESS 0x2c000000
+#define GIC_DR_OFFSET 0x1000
+#define GIC_CR_OFFSET 0x2000
+#define GIC_HR_OFFSET 0x4000 /* Guess work http://lists.infradead.org/pipermail/linux-arm-kernel/2011-September/064219.html */
+#define GIC_VR_OFFSET 0x6000 /* Virtual Machine CPU interface) */
+
+#endif /* __ARM_CONFIG_H__ */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */