From: Edgar E. Iglesias <edgar.iglesias@amd.com>
Date: Thu, 18 Apr 2024 14:40:58 +0000 (+0200)
Subject: hw/arm: xen: Enable use of grant mappings
X-Git-Tag: v9.1.0-rc0~71^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6d87a2a311fe4a8363143e6914d000697ea0cd83;p=thirdparty%2Fqemu.git

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>
---

diff --git a/hw/arm/xen_arm.c b/hw/arm/xen_arm.c
index 15fa7dfa84f..6fad829edea 100644
--- a/hw/arm/xen_arm.c
+++ b/hw/arm/xen_arm.c
@@ -125,6 +125,11 @@ static void xen_init_ram(MachineState *machine)
                                  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)