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[RFC PATCH 10/13] softmmu/physmem: Add private memory address space
From: |
Chao Peng |
Subject: |
[RFC PATCH 10/13] softmmu/physmem: Add private memory address space |
Date: |
Thu, 11 Nov 2021 22:13:49 +0800 |
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
---
include/exec/address-spaces.h | 2 ++
softmmu/physmem.c | 13 +++++++++++++
2 files changed, 15 insertions(+)
diff --git a/include/exec/address-spaces.h b/include/exec/address-spaces.h
index db8bfa9a92..b3f45001c0 100644
--- a/include/exec/address-spaces.h
+++ b/include/exec/address-spaces.h
@@ -27,6 +27,7 @@
* until a proper bus interface is available.
*/
MemoryRegion *get_system_memory(void);
+MemoryRegion *get_system_private_memory(void);
/* Get the root I/O port region. This interface should only be used
* temporarily until a proper bus interface is available.
@@ -34,6 +35,7 @@ MemoryRegion *get_system_memory(void);
MemoryRegion *get_system_io(void);
extern AddressSpace address_space_memory;
+extern AddressSpace address_space_private_memory;
extern AddressSpace address_space_io;
#endif
diff --git a/softmmu/physmem.c b/softmmu/physmem.c
index f4d6eeaa17..a2d339fd88 100644
--- a/softmmu/physmem.c
+++ b/softmmu/physmem.c
@@ -85,10 +85,13 @@
RAMList ram_list = { .blocks = QLIST_HEAD_INITIALIZER(ram_list.blocks) };
static MemoryRegion *system_memory;
+static MemoryRegion *system_private_memory;
static MemoryRegion *system_io;
AddressSpace address_space_io;
AddressSpace address_space_memory;
+AddressSpace address_space_private_memory;
+
static MemoryRegion io_mem_unassigned;
@@ -2669,6 +2672,11 @@ static void memory_map_init(void)
memory_region_init(system_memory, NULL, "system", UINT64_MAX);
address_space_init(&address_space_memory, system_memory, "memory");
+ system_private_memory = g_malloc(sizeof(*system_private_memory));
+
+ memory_region_init(system_private_memory, NULL, "system-private",
UINT64_MAX);
+ address_space_init(&address_space_private_memory, system_private_memory,
"private-memory");
+
system_io = g_malloc(sizeof(*system_io));
memory_region_init_io(system_io, NULL, &unassigned_io_ops, NULL, "io",
65536);
@@ -2680,6 +2688,11 @@ MemoryRegion *get_system_memory(void)
return system_memory;
}
+MemoryRegion *get_system_private_memory(void)
+{
+ return system_private_memory;
+}
+
MemoryRegion *get_system_io(void)
{
return system_io;
--
2.17.1
- [RFC PATCH 2/6] kvm: x86: Introduce guest private memory address space to memslot, (continued)
- [RFC PATCH 2/6] kvm: x86: Introduce guest private memory address space to memslot, Chao Peng, 2021/11/11
- [RFC PATCH 3/6] kvm: x86: add private_ops to memslot, Chao Peng, 2021/11/11
- [RFC PATCH 4/6] kvm: x86: implement private_ops for memfd backing store, Chao Peng, 2021/11/11
- [RFC PATCH 5/6] kvm: x86: add KVM_EXIT_MEMORY_ERROR exit, Chao Peng, 2021/11/11
- [RFC PATCH 6/6] KVM: add KVM_SPLIT_MEMORY_REGION, Chao Peng, 2021/11/11
- [RFC PATCH 07/13] linux-headers: Update, Chao Peng, 2021/11/11
- [RFC PATCH 08/13] hostmem: Add guest private memory to memory backend, Chao Peng, 2021/11/11
- [RFC PATCH 09/13] qmp: Include "guest-private" property for memory backends, Chao Peng, 2021/11/11
- [RFC PATCH 10/13] softmmu/physmem: Add private memory address space,
Chao Peng <=
- [RFC PATCH 11/13] kvm: register private memory slots, Chao Peng, 2021/11/11
- [RFC PATCH 12/13] kvm: handle private to shared memory conversion, Chao Peng, 2021/11/11
- [RFC PATCH 13/13] machine: Add 'private-memory-backend' property, Chao Peng, 2021/11/11