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[RFC QEMU PATCH 14/18] softmmu: Add ram block check to map the xen ram memory
- To: Gerd Hoffmann <kraxel@xxxxxxxxxx>, "Michael S . Tsirkin" <mst@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Antonio Caggiano <antonio.caggiano@xxxxxxxxxxxxx>, "Dr . David Alan Gilbert" <dgilbert@xxxxxxxxxx>, Robert Beckett <bob.beckett@xxxxxxxxxxxxx>, <qemu-devel@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Huang Rui <ray.huang@xxxxxxx>
- Date: Sun, 12 Mar 2023 17:22:40 +0800
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- Cc: Alex Deucher <alexander.deucher@xxxxxxx>, Christian König <christian.koenig@xxxxxxx>, "Stewart Hildebrand" <Stewart.Hildebrand@xxxxxxx>, Xenia Ragiadakou <burzalodowa@xxxxxxxxx>, Honglei Huang <honglei1.huang@xxxxxxx>, Julia Zhang <julia.zhang@xxxxxxx>, Chen Jiqian <Jiqian.Chen@xxxxxxx>, Huang Rui <ray.huang@xxxxxxx>
- Delivery-date: Sun, 12 Mar 2023 09:29:10 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
The xen ram memory should be mapped with addr instead of ramblock
offset. So we need to add a check to make sure current ramblock is xen
ram memory.
Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
---
softmmu/physmem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/softmmu/physmem.c b/softmmu/physmem.c
index 1b0bb35da9..e54561bace 100644
--- a/softmmu/physmem.c
+++ b/softmmu/physmem.c
@@ -2333,7 +2333,7 @@ static void *qemu_ram_ptr_length(RAMBlock *ram_block,
ram_addr_t addr,
* because we don't want to map the entire memory in QEMU.
* In that case just map the requested area.
*/
- if (block->offset == 0) {
+ if (block->offset == 0 || (!lock && xen_ram_block_check(block))) {
return xen_map_cache(addr, *size, lock, lock);
}
--
2.25.1
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