nova: use kernel branch r10

- Reordering and cleanup of commits to form a common branch shared by others
- Add right bit to deny portal usage for cross-core IPC
- avoid GP when switching on AMD SVM if disabled by UEFI/BIOS

Issue #2854

repos/base-nova/include/nova/syscall-generic.h

@@ -442,6 +442,7 @@ namespace Nova {
 				RIGHT_EC_RECALL = 0x1U,
 				RIGHT_PT_CALL   = 0x2U,
 				RIGHT_PT_CTRL   = 0x1U,
+				RIGHT_PT_XCPU   = 0x10U,
 				RIGHT_SM_UP     = 0x1U,
 				RIGHT_SM_DOWN   = 0x2U
 			};

repos/base-nova/ports/nova.hash

@@ -1 +1 @@
-0878c653b740359a4123ac0b9a79ce5df26f9251
+2d7d4d9f37444150bfe0b90b8f63f47b76940ff2

repos/base-nova/ports/nova.port

@@ -4,7 +4,7 @@ DOWNLOADS := nova.git
 
 # r9 branch - use r9_debug for more verbose kernel messages
 URL(nova) := https://github.com/alex-ab/NOVA.git
-REV(nova) := 9b24eb4fa7d45249ca409720164902ec483a3134
+REV(nova) := 84676254ad6d471cd7716d193e026ed47c517e41
 DIR(nova) := src/kernel/nova
 
 PATCHES   := $(sort $(wildcard $(REP_DIR)/patches/*.patch))

repos/base-nova/src/core/platform_thread.cc

@@ -48,7 +48,7 @@ static uint8_t map_thread_portals(Pager_object &pager,
 
 	/* xxx better map portals with solely pt_call and sm separately ? xxx */
 	addr_t const rights = Obj_crd::RIGHT_EC_RECALL |
-	                      Obj_crd::RIGHT_PT_CTRL | Obj_crd::RIGHT_PT_CALL |
+	                      Obj_crd::RIGHT_PT_CTRL | Obj_crd::RIGHT_PT_CALL | Obj_crd::RIGHT_PT_XCPU |
 	                      Obj_crd::RIGHT_SM_UP | Obj_crd::RIGHT_SM_DOWN;
 
 	Obj_crd const source_initial_caps(source_exc_base, NUM_INITIAL_PT_LOG2,