From: Gleb Natapov <[email protected]>
Signed-off-by: Gleb Natapov <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
diff --git a/lib/x86/vm.c b/lib/x86/vm.c
index 4d0a955..1ca8a05 100644
--- a/lib/x86/vm.c
+++ b/lib/x86/vm.c
@@ -9,6 +9,7 @@
#endif
#define X86_CR0_PE 0x00000001
+#define X86_CR0_WP 0x00010000
#define X86_CR0_PG 0x80000000
#define X86_CR4_PSE 0x00000010
static void *free = 0;
@@ -176,7 +177,7 @@ static void setup_mmu(unsigned long len)
#ifndef __x86_64__
write_cr4(X86_CR4_PSE);
#endif
- write_cr0(X86_CR0_PG |X86_CR0_PE);
+ write_cr0(X86_CR0_PG |X86_CR0_PE | X86_CR0_WP);
printf("paging enabled\n");
printf("cr0 = %x\n", read_cr0());
--
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