[PATCH v2 30/39] xen/riscv: define an address of frame table

[Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>]

Also the patchs adds some helpful macros.

Signed-off-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
---
Changes in V2:
 - Nothing changed. Only rebase.
---
 xen/arch/riscv/include/asm/config.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/xen/arch/riscv/include/asm/config.h 
b/xen/arch/riscv/include/asm/config.h
index f0544c6a20..8d2103b3ce 100644
--- a/xen/arch/riscv/include/asm/config.h
+++ b/xen/arch/riscv/include/asm/config.h
@@ -77,12 +77,31 @@
   name:
 #endif
 
+#define VPN_BITS    (9)
+#define OFFSET_BITS (12)
+
 #ifdef CONFIG_RISCV_64
+
+#define SLOTN_ENTRY_BITS        (HYP_PT_ROOT_LEVEL * VPN_BITS + OFFSET_BITS)
+#define SLOTN(slot)             (_AT(vaddr_t,slot) << SLOTN_ENTRY_BITS)
+#define SLOTN_ENTRY_SIZE        SLOTN(1)
+
 #define XEN_VIRT_START 0xFFFFFFFFC0000000 /* (_AC(-1, UL) + 1 - GB(1)) */
+
+#define FRAMETABLE_VIRT_START   SLOTN(196)
+#define FRAMETABLE_SIZE         GB(3)
+#define FRAMETABLE_NR           (FRAMETABLE_SIZE / sizeof(*frame_table))
+#define FRAMETABLE_VIRT_END     (FRAMETABLE_VIRT_START + FRAMETABLE_SIZE - 1)
+
+#define VMAP_VIRT_START         SLOTN(194)
+#define VMAP_VIRT_SIZE          GB(1)
+
 #else
 #error "RV32 isn't supported"
 #endif
 
+#define HYPERVISOR_VIRT_START XEN_VIRT_START
+
 #define SMP_CACHE_BYTES (1 << 6)
 
 #define STACK_SIZE PAGE_SIZE
@@ -95,6 +114,8 @@
 #define RV_STAGE1_MODE SATP_MODE_SV32
 #endif
 
+#define HYP_PT_ROOT_LEVEL (CONFIG_PAGING_LEVELS - 1)
+
 #define IDENT_AREA_SIZE 64
 
 #endif /* __RISCV_CONFIG_H__ */
-- 
2.42.0