[PATCH] mini-os: fix do_map_frames() for pvh

From: Juergen Gross <jgross@suse.com>
To: minios-devel@lists.xenproject.org, xen-devel@lists.xenproject.org
Cc: samuel.thibault@ens-lyon.org, wl@xen.org,
	Juergen Gross <jgross@suse.com>
Subject: [PATCH] mini-os: fix do_map_frames() for pvh
Date: Sat, 15 Aug 2020 13:12:57 +0200	[thread overview]
Message-ID: <20200815111257.29302-1-jgross@suse.com> (raw)

In case ov PVH dom_map_frames() is missing to increment the virtual
address. This leads to writing only the first page table entry multiple
times.

Signed-off-by: Juergen Gross <jgross@suse.com>
---
 arch/x86/mm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/mm.c b/arch/x86/mm.c
index ea58444..8ba14a5 100644
--- a/arch/x86/mm.c
+++ b/arch/x86/mm.c
@@ -695,6 +695,7 @@ int do_map_frames(unsigned long va,
         pgt[l1_table_offset(va)] = (pgentry_t)
             (((mfns[done * stride] + done * incr) << PAGE_SHIFT) | prot);
         done++;
+        va += PAGE_SIZE;
 #endif
     }
 
-- 
2.26.2


