[coreboot-gerrit] New patch to review for coreboot: riscv-virtual-memory: move page tables into virtual address space

[Thaminda Edirisooriya (thaminda@google.com)]

Thaminda Edirisooriya (thaminda at google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/11621

-gerrit

commit 7128feece369b2b8a7e59b73b049ad5a55d8817b
Author: Thaminda Edirisooriya <thaminda at google.com>
Date:   Thu Sep 10 10:58:58 2015 -0700

    riscv-virtual-memory: move page tables into virtual address space
    
    If we use a linux payload/any payload that wants to manage virtual
    memory, and the payload is a supervisor (thus requiring virtual
    addressing before being started), we need to make sure that the page
    table is mapped into the virtual address space. Move the start address
    of the tables so the payload can manage virtual memory.
    
    Change-Id: I1d99e46f38a38a163fb1c7c517b1abca80cde0dc
    Signed-off-by: Thaminda Edirisooriya <thaminda at google.com>
---
 src/arch/riscv/virtual_memory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/arch/riscv/virtual_memory.c b/src/arch/riscv/virtual_memory.c
index 2095bfa..0163a45 100644
--- a/src/arch/riscv/virtual_memory.c
+++ b/src/arch/riscv/virtual_memory.c
@@ -107,7 +107,7 @@ void initVirtualMemory(void) {
 	printk(BIOS_DEBUG, "Initializing virtual memory...\n");
 	uintptr_t physicalStart = 0x1000000; // TODO: Figure out how to grab this from cbfs
 	uintptr_t virtualStart = 0xffffffff81000000;
-	uintptr_t pageTableStart = 0x1f0000;
+	uintptr_t pageTableStart = 0x1400000;
 	init_vm(virtualStart, physicalStart, pageTableStart);
 	mb();
 	printk(BIOS_DEBUG, "Finished initializing virtual memory, starting walk...\n");