| Message ID | 1554281797-21368-1-git-send-email-rcojocaru@bitdefender.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | x86/altp2m: treat view 0 as the hostp2m in p2m_get_mem_access() | expand |
On Wed, Apr 3, 2019 at 2:56 AM Razvan Cojocaru <rcojocaru@bitdefender.com> wrote: > > p2m_set_mem_access() (and other places) treat view 0 as the > hostp2m, but p2m_get_mem_access() does not. Correct that > inconsistency. > > Signed-off-by: Razvan Cojocaru <rcojocaru@bitdefender.com> Acked-by: Tamas K Lengyel <tamas@tklengyel.com>
diff --git a/xen/arch/x86/mm/mem_access.c b/xen/arch/x86/mm/mem_access.c index 56c06a4..a144bb0 100644 --- a/xen/arch/x86/mm/mem_access.c +++ b/xen/arch/x86/mm/mem_access.c @@ -505,7 +505,7 @@ int p2m_get_mem_access(struct domain *d, gfn_t gfn, xenmem_access_t *access, if ( altp2m_idx ) return -EINVAL; } - else + else if ( altp2m_idx ) /* altp2m view 0 is treated as the hostp2m */ { if ( altp2m_idx >= MAX_ALTP2M || d->arch.altp2m_eptp[altp2m_idx] == mfn_x(INVALID_MFN) )
p2m_set_mem_access() (and other places) treat view 0 as the hostp2m, but p2m_get_mem_access() does not. Correct that inconsistency. Signed-off-by: Razvan Cojocaru <rcojocaru@bitdefender.com> --- xen/arch/x86/mm/mem_access.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)