SPCI: Donate memory architected message.
The donate mechnism accepts a single memory region as per the spec but
restrics the number of constituents of this regions to 1.
Multiple constituents will be introduced in a later commit.
Change-Id: I7af9b80068060aedb953d3e204fa3e03c9ccc438
diff --git a/inc/hf/api.h b/inc/hf/api.h
index 43497bf..af21d00 100644
--- a/inc/hf/api.h
+++ b/inc/hf/api.h
@@ -52,9 +52,14 @@
spci_vcpu_index_t target_vcpu_idx, uint32_t intid,
struct vcpu *current, struct vcpu **next);
-int32_t api_spci_msg_send(uint32_t attributes, struct vcpu *current,
- struct vcpu **next);
+spci_return_t api_spci_msg_send(uint32_t attributes, struct vcpu *current,
+ struct vcpu **next);
int32_t api_spci_msg_recv(uint32_t attributes, struct vcpu *current,
struct vcpu **next);
int32_t api_spci_yield(struct vcpu *current, struct vcpu **next);
int32_t api_spci_version(void);
+spci_return_t api_spci_share_memory(struct vm_locked to_locked,
+ struct vm_locked from_locked,
+ struct spci_memory_region *memory_region,
+ uint32_t memory_to_attributes,
+ enum spci_memory_share share);
diff --git a/inc/hf/spci_internal.h b/inc/hf/spci_internal.h
index 441b424..78477a3 100644
--- a/inc/hf/spci_internal.h
+++ b/inc/hf/spci_internal.h
@@ -16,7 +16,31 @@
#pragma once
+#include "hf/addr.h"
+#include "hf/vm.h"
+
+#include "vmapi/hf/spci.h"
+
#define SPCI_VERSION_MAJOR 0x0
#define SPCI_VERSION_MINOR 0x9
#define SPCI_VERSION_MAJOR_OFFSET 16
+
+struct spci_mem_transitions {
+ int orig_from_mode;
+ int orig_to_mode;
+ int from_mode;
+ int to_mode;
+};
+
+spci_return_t spci_msg_handle_architected_message(
+ struct vm_locked to_locked, struct vm_locked from_locked,
+ const struct spci_architected_message_header
+ *architected_message_replica,
+ struct spci_message *from_msg_replica, struct spci_message *to_msg);
+
+bool spci_msg_check_transition(struct vm *to, struct vm *from,
+ enum spci_memory_share share,
+ int *orig_from_mode, ipaddr_t begin,
+ ipaddr_t end, uint32_t memory_to_attributes,
+ int *from_mode, int *to_mode);
diff --git a/inc/hf/vm.h b/inc/hf/vm.h
index c86da21..8930c11 100644
--- a/inc/hf/vm.h
+++ b/inc/hf/vm.h
@@ -24,7 +24,8 @@
#include "hf/list.h"
#include "hf/mm.h"
#include "hf/mpool.h"
-#include "hf/spci.h"
+
+#include "vmapi/hf/spci.h"
enum mailbox_state {
/** There is no message in the mailbox. */
@@ -97,10 +98,17 @@
struct vm *vm;
};
+/** Container for two vm_locked structures */
+struct two_vm_locked {
+ struct vm_locked vm1;
+ struct vm_locked vm2;
+};
+
bool vm_init(spci_vcpu_count_t vcpu_count, struct mpool *ppool,
struct vm **new_vm);
spci_vm_count_t vm_get_count(void);
struct vm *vm_find(spci_vm_id_t id);
struct vm_locked vm_lock(struct vm *vm);
+struct two_vm_locked vm_lock_both(struct vm *vm1, struct vm *vm2);
void vm_unlock(struct vm_locked *locked);
struct vcpu *vm_get_vcpu(struct vm *vm, spci_vcpu_index_t vcpu_index);