[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH v7 07/10] KVM: Cache kvm slot dirty bitmap size
From: |
Peter Xu |
Subject: |
[PATCH v7 07/10] KVM: Cache kvm slot dirty bitmap size |
Date: |
Thu, 6 May 2021 12:05:46 -0400 |
Cache it too because we'll reference it more frequently in the future.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
---
accel/kvm/kvm-all.c | 1 +
include/sysemu/kvm_int.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 4b786240a04..4af61734e37 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -610,6 +610,7 @@ static void kvm_slot_init_dirty_bitmap(KVMSlot *mem)
hwaddr bitmap_size = ALIGN(mem->memory_size / qemu_real_host_page_size,
/*HOST_LONG_BITS*/ 64) / 8;
mem->dirty_bmap = g_malloc0(bitmap_size);
+ mem->dirty_bmap_size = bitmap_size;
}
/*
diff --git a/include/sysemu/kvm_int.h b/include/sysemu/kvm_int.h
index ab09a150e19..c788452cd96 100644
--- a/include/sysemu/kvm_int.h
+++ b/include/sysemu/kvm_int.h
@@ -23,6 +23,7 @@ typedef struct KVMSlot
int old_flags;
/* Dirty bitmap cache for the slot */
unsigned long *dirty_bmap;
+ unsigned long dirty_bmap_size;
/* Cache of the address space ID */
int as_id;
/* Cache of the offset in ram address space */
--
2.31.1
- [PATCH v7 00/10] KVM: Dirty ring support (QEMU part), Peter Xu, 2021/05/06
- [PATCH v7 01/10] memory: Introduce log_sync_global() to memory listener, Peter Xu, 2021/05/06
- [PATCH v7 02/10] KVM: Use a big lock to replace per-kml slots_lock, Peter Xu, 2021/05/06
- [PATCH v7 04/10] KVM: Provide helper to get kvm dirty log, Peter Xu, 2021/05/06
- [PATCH v7 05/10] KVM: Provide helper to sync dirty bitmap from slot to ramblock, Peter Xu, 2021/05/06
- [PATCH v7 03/10] KVM: Create the KVMSlot dirty bitmap on flag changes, Peter Xu, 2021/05/06
- [PATCH v7 06/10] KVM: Simplify dirty log sync in kvm_set_phys_mem, Peter Xu, 2021/05/06
- [PATCH v7 08/10] KVM: Add dirty-gfn-count property, Peter Xu, 2021/05/06
- [PATCH v7 07/10] KVM: Cache kvm slot dirty bitmap size,
Peter Xu <=
- [PATCH v7 09/10] KVM: Disable manual dirty log when dirty ring enabled, Peter Xu, 2021/05/06
- [PATCH v7 10/10] KVM: Dirty ring support, Peter Xu, 2021/05/06
- Re: [PATCH v7 00/10] KVM: Dirty ring support (QEMU part), Paolo Bonzini, 2021/05/14