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authorRusty Russell <rusty@rustcorp.com.au>2013-04-22 14:10:41 +0930
committerRusty Russell <rusty@rustcorp.com.au>2013-04-22 15:45:02 +0930
commit86935fc4ee4d95efe01b6c91cd5143fa4c38c02b (patch)
treebac296987d1d5fbb756912e643e7faa23c663e1b /drivers/lguest/lg.h
parent3412b6ae2924e068f9932f841bdea0f2d8424502 (diff)
downloadlinux-86935fc4ee4d95efe01b6c91cd5143fa4c38c02b.tar.bz2
lguest: map Switcher text whenever we allocate a new pagetable.
It's always to same, so no need to put in the PTE every time we're about to run. Keep a flag to track whether the pagetable has the Switcher entries allocated, and when allocating always initialize the Switcher text PTE. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/lg.h')
-rw-r--r--drivers/lguest/lg.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h
index faac9fc6db22..005929a3fd52 100644
--- a/drivers/lguest/lg.h
+++ b/drivers/lguest/lg.h
@@ -16,6 +16,7 @@
struct pgdir {
unsigned long gpgdir;
+ bool switcher_mapped;
pgd_t *pgdir;
};