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| author | Rusty Russell <rusty@rustcorp.com.au> | 2015-02-11 15:15:09 +1030 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2015-02-11 16:47:31 +1030 |
| commit | c9e433e4b852b70ea267388cf9b5d8096b04c44c (patch) | |
| tree | e456fdc2a7b08ded02723f9235e6d6afd7991642 /drivers/lguest/lg.h | |
| parent | 8ed313001a892f240269dea05d4b925cbd150492 (diff) | |
| download | linux-stable-c9e433e4b852b70ea267388cf9b5d8096b04c44c.tar.gz linux-stable-c9e433e4b852b70ea267388cf9b5d8096b04c44c.tar.bz2 linux-stable-c9e433e4b852b70ea267388cf9b5d8096b04c44c.zip | |
lguest: add infrastructure to check mappings.
We normally abort the guest unconditionally when it gives us a bad address,
but in the next patch we want to copy some bytes which may not be mapped.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/lg.h')
| -rw-r--r-- | drivers/lguest/lg.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h index 020fec5bb072..9da4f351e077 100644 --- a/drivers/lguest/lg.h +++ b/drivers/lguest/lg.h @@ -202,6 +202,7 @@ void guest_set_pte(struct lg_cpu *cpu, unsigned long gpgdir, void map_switcher_in_guest(struct lg_cpu *cpu, struct lguest_pages *pages); bool demand_page(struct lg_cpu *cpu, unsigned long cr2, int errcode); void pin_page(struct lg_cpu *cpu, unsigned long vaddr); +bool __guest_pa(struct lg_cpu *cpu, unsigned long vaddr, unsigned long *paddr); unsigned long guest_pa(struct lg_cpu *cpu, unsigned long vaddr); void page_table_guest_data_init(struct lg_cpu *cpu); |