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[PATCH v5 07/10] KVM: Cache kvm slot dirty bitmap size
From: |
Peter Xu |
Subject: |
[PATCH v5 07/10] KVM: Cache kvm slot dirty bitmap size |
Date: |
Wed, 10 Mar 2021 15:32:58 -0500 |
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 20f852a990b..a1e7b1332a1 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -612,6 +612,7 @@ 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 */
--
2.26.2
[PATCH v5 07/10] KVM: Cache kvm slot dirty bitmap size,
Peter Xu <=
Re: [PATCH v5 00/10] KVM: Dirty ring support (QEMU part), Peter Xu, 2021/03/19
Re: [PATCH v5 00/10] KVM: Dirty ring support (QEMU part), Keqian Zhu, 2021/03/22
- Re: [PATCH v5 00/10] KVM: Dirty ring support (QEMU part), Peter Xu, 2021/03/22
- Re: [PATCH v5 00/10] KVM: Dirty ring support (QEMU part), Keqian Zhu, 2021/03/23
- Re: [PATCH v5 00/10] KVM: Dirty ring support (QEMU part), Peter Xu, 2021/03/23
- Re: [PATCH v5 00/10] KVM: Dirty ring support (QEMU part), Keqian Zhu, 2021/03/23
- Re: [PATCH v5 00/10] KVM: Dirty ring support (QEMU part), Peter Xu, 2021/03/24
- Re: [PATCH v5 00/10] KVM: Dirty ring support (QEMU part), Keqian Zhu, 2021/03/24