Introduce new KVM_SET_USER_MEMORY_REGION_LIST ioctl and
kvm_userspace_memory_region_list that will be used to pass
multiple memory region updates at once to KVM.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@xxxxxxxxxx>
---
linux-headers/linux/kvm.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
index f089349149..671cdfb8de 100644
--- a/linux-headers/linux/kvm.h
+++ b/linux-headers/linux/kvm.h
@@ -103,6 +103,24 @@ struct kvm_userspace_memory_region {
__u64 userspace_addr; /* start of the userspace allocated memory */
};
+/* for KVM_SET_USER_MEMORY_REGION_LIST */
+struct kvm_userspace_memory_region_entry {
+ __u32 slot;
+ __u32 flags;
+ __u64 guest_phys_addr;
+ __u64 memory_size; /* bytes */
+ __u64 userspace_addr; /* start of the userspace allocated memory */
+ __u8 invalidate_slot;
+ __u8 padding[31];
+};
+
+/* for KVM_SET_USER_MEMORY_REGION_LIST */
+struct kvm_userspace_memory_region_list {
+ __u32 nent;
+ __u32 flags;
+ struct kvm_userspace_memory_region_entry entries[0];
+};
+
/*
* The bit 0 ~ bit 15 of kvm_memory_region::flags are visible for userspace,
* other bits are reserved for kvm internal use which are defined in
@@ -1426,6 +1444,8 @@ struct kvm_vfio_spapr_tce {
struct kvm_userspace_memory_region)
#define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
#define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64)
+#define KVM_SET_USER_MEMORY_REGION_LIST _IOW(KVMIO, 0x49, \
+ struct kvm_userspace_memory_region_list)
/* enable ucontrol for s390 */
struct kvm_s390_ucas_mapping {
--
2.31.1
