There's no way to enable paging mode on per-task basis. So, Check
for per-task is redundant. Remove the x86_64_task_uses_5level()
Signed-off-by: Dou Liyang <douly.fnst@xxxxxxxxxxxxxx>
---
x86_64.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)
diff --git a/x86_64.c b/x86_64.c
index b07d6f2..96f685b 100644
--- a/x86_64.c
+++ b/x86_64.c
@@ -24,7 +24,6 @@ static int x86_64_uvtop(struct task_context *, ulong, physaddr_t *, int);
static int x86_64_uvtop_level4(struct task_context *, ulong, physaddr_t *, int);
static int x86_64_uvtop_level4_xen_wpt(struct task_context *, ulong, physaddr_t *, int);
static int x86_64_uvtop_level4_rhel4_xen_wpt(struct task_context *, ulong, physaddr_t *, int);
-static int x86_64_task_uses_5level(struct task_context *);
static ulong x86_64_vmalloc_start(void);
static int x86_64_is_task_addr(ulong);
static int x86_64_verify_symbol(const char *, ulong, char);
@@ -341,6 +340,7 @@ x86_64_init(int when)
if (l5_enabled)
machdep->flags |= VM_5LEVEL;
}
+
if (machdep->flags & VM_5LEVEL) {
machdep->machspec->userspace_top = USERSPACE_TOP_5LEVEL;
machdep->machspec->page_offset = PAGE_OFFSET_5LEVEL;
@@ -361,7 +361,6 @@ x86_64_init(int when)
machdep->uvtop = x86_64_uvtop_level4; /* 5-level is optional per-task */
machdep->kvbase = (ulong)PAGE_OFFSET;
machdep->identity_map_base = (ulong)PAGE_OFFSET;
-
}
/*
@@ -1915,7 +1914,7 @@ x86_64_uvtop_level4(struct task_context *tc, ulong uvaddr, physaddr_t *paddr, in
goto no_upage;
/* If the VM is in 5-level page table */
- if (machdep->flags & VM_5LEVEL && x86_64_task_uses_5level(tc)) {
+ if (machdep->flags & VM_5LEVEL) {
ulong p4d_pte;
/*
* p4d = p4d_offset(pgd, address);
@@ -1986,12 +1985,6 @@ no_upage:
return FALSE;
}
-static int
-x86_64_task_uses_5level(struct task_context *tc)
-{
- return FALSE;
-}
-
static int
x86_64_uvtop_level4_xen_wpt(struct task_context *tc, ulong uvaddr, physaddr_t *paddr, int verbose)
{
--
2.14.3
--
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