[OpenBIOS] [PATCH 4/5] SPARC64: mark kernel memory as mapped and in use before booting kernel

[Mark Cave-Ayland]

Signed-off-by: Mark Cave-Ayland 
---
 arch/sparc64/openbios.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/sparc64/openbios.c b/arch/sparc64/openbios.c
index b2e79d0..61610d1 100644
--- a/arch/sparc64/openbios.c
+++ b/arch/sparc64/openbios.c
@@ -560,9 +560,15 @@ void arch_nvram_get(char *data)
     }

kernel_size = fw_cfg_read_i32(FW_CFG_KERNEL_SIZE);
-    if (kernel_size)
+    if (kernel_size) {
         kernel_image = fw_cfg_read_i64(FW_CFG_KERNEL_ADDR);

+        /* Mark the kernel memory as mapped 1:1 and in use */
+        ofmem_claim_phys(PAGE_ALIGN(kernel_image), PAGE_ALIGN(kernel_size), 0);
+        ofmem_claim_virt(PAGE_ALIGN(kernel_image), PAGE_ALIGN(kernel_size), 0);
+        ofmem_map(PAGE_ALIGN(kernel_image), PAGE_ALIGN(kernel_image), kernel_size, -1);
+    }
+
     size = fw_cfg_read_i32(FW_CFG_CMDLINE_SIZE);
     if (size) {
    obio_cmdline = (char *)malloc(size + 1);