commit 6d87a2a311fe4a8363143e6914d000697ea0cd83
author Edgar E. Iglesias <edgar.iglesias@amd.com> Thu Apr 18 16:40:58 2024 +0200
committer Edgar E. Iglesias <edgar.iglesias@amd.com> Sun Jun 09 20:16:14 2024 +0200
tree 5b46d0dfb746e742ce85bb84262cfd1e62e989c3
parent 9ecdd4bf08dfe4a37e16b8a8b228575aff641468

hw/arm: xen: Enable use of grant mappings

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>

hw/arm/xen_arm.c

diff --git a/hw/arm/xen_arm.c b/hw/arm/xen_arm.c
index 15fa7df..6fad829e 100644
--- a/hw/arm/xen_arm.c
+++ b/hw/arm/xen_arm.c
@@ -125,6 +125,11 @@
                                  GUEST_RAM1_BASE, ram_size[1]);
         memory_region_add_subregion(sysmem, GUEST_RAM1_BASE, &ram_hi);
     }
+
+    /* Setup support for grants.  */
+    memory_region_init_ram(&xen_grants, NULL, "xen.grants", block_len,
+                           &error_fatal);
+    memory_region_add_subregion(sysmem, XEN_GRANT_ADDR_OFF, &xen_grants);
 }
 
 void arch_handle_ioreq(XenIOState *state, ioreq_t *req)