From: Razvan Cojocaru Date: Wed, 3 Apr 2019 08:56:37 +0000 (+0300) Subject: x86/altp2m: treat view 0 as the hostp2m in p2m_get_mem_access() X-Git-Tag: archive/raspbian/4.14.0+80-gd101b417b7-1+rpi1^2~63^2~2411 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=44f3c3cdd315668fee2a336f659a580cc0279bf3;p=xen.git x86/altp2m: treat view 0 as the hostp2m in p2m_get_mem_access() 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 Acked-by: Tamas K Lengyel --- diff --git a/xen/arch/x86/mm/mem_access.c b/xen/arch/x86/mm/mem_access.c index 56c06a4fc6..a144bb0ce4 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) )