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[RFC QEMU PATCH 13/18] hw/i386/xen/xen-hvm: Introduce xen_ram_block_check function
- 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 17:22:39 +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>
Introduce xen_ram_block_check function to check whether current ramblock
is xen ram memory.
Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
---
hw/i386/xen/xen-hvm.c | 15 +++++++++++++++
include/hw/xen/xen.h | 1 +
2 files changed, 16 insertions(+)
diff --git a/hw/i386/xen/xen-hvm.c b/hw/i386/xen/xen-hvm.c
index e4293d6d66..a4f12aefce 100644
--- a/hw/i386/xen/xen-hvm.c
+++ b/hw/i386/xen/xen-hvm.c
@@ -32,6 +32,7 @@
#include "sysemu/xen.h"
#include "sysemu/xen-mapcache.h"
#include "trace.h"
+#include "include/exec/ramblock.h"
#include <xen/hvm/ioreq.h>
#include <xen/hvm/e820.h>
@@ -1564,6 +1565,20 @@ void xen_register_framebuffer(MemoryRegion *mr)
framebuffer = mr;
}
+bool xen_ram_block_check(RAMBlock *rb)
+{
+ bool ret;
+
+ if (!rb)
+ return false;
+
+ ret = (rb == ram_memory.ram_block);
+ if (ret)
+ rb->offset = 0;
+
+ return ret;
+}
+
void xen_shutdown_fatal_error(const char *fmt, ...)
{
va_list ap;
diff --git a/include/hw/xen/xen.h b/include/hw/xen/xen.h
index afdf9c436a..99a383eb17 100644
--- a/include/hw/xen/xen.h
+++ b/include/hw/xen/xen.h
@@ -31,5 +31,6 @@ qemu_irq *xen_interrupt_controller_init(void);
void xenstore_store_pv_console_info(int i, Chardev *chr);
void xen_register_framebuffer(struct MemoryRegion *mr);
+bool xen_ram_block_check(RAMBlock *rb);
#endif /* QEMU_HW_XEN_H */
--
2.25.1
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