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Re: [Qemu-devel] [PATCH v4 05/11] memory: Pass mr into snapshot_and_clea
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [Qemu-devel] [PATCH v4 05/11] memory: Pass mr into snapshot_and_clear_dirty |
Date: |
Mon, 3 Jun 2019 10:36:26 +0100 |
User-agent: |
Mutt/1.11.4 (2019-03-13) |
* Peter Xu (address@hidden) wrote:
> Also we change the 2nd parameter of it to be the relative offset
> within the memory region. This is to be used in follow up patches.
>
> Signed-off-by: Peter Xu <address@hidden>
Reviewed-by: Dr. David Alan Gilbert <address@hidden>
> ---
> exec.c | 3 ++-
> include/exec/ram_addr.h | 2 +-
> memory.c | 3 +--
> 3 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/exec.c b/exec.c
> index 4e734770c2..815e4f48b9 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -1387,9 +1387,10 @@ bool
> cpu_physical_memory_test_and_clear_dirty(ram_addr_t start,
> }
>
> DirtyBitmapSnapshot *cpu_physical_memory_snapshot_and_clear_dirty
> - (ram_addr_t start, ram_addr_t length, unsigned client)
> + (MemoryRegion *mr, hwaddr offset, hwaddr length, unsigned client)
> {
> DirtyMemoryBlocks *blocks;
> + ram_addr_t start = memory_region_get_ram_addr(mr) + offset;
> unsigned long align = 1UL << (TARGET_PAGE_BITS + BITS_PER_LEVEL);
> ram_addr_t first = QEMU_ALIGN_DOWN(start, align);
> ram_addr_t last = QEMU_ALIGN_UP(start + length, align);
> diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
> index 79e70a96ee..a4456f3615 100644
> --- a/include/exec/ram_addr.h
> +++ b/include/exec/ram_addr.h
> @@ -403,7 +403,7 @@ bool cpu_physical_memory_test_and_clear_dirty(ram_addr_t
> start,
> unsigned client);
>
> DirtyBitmapSnapshot *cpu_physical_memory_snapshot_and_clear_dirty
> - (ram_addr_t start, ram_addr_t length, unsigned client);
> + (MemoryRegion *mr, hwaddr offset, hwaddr length, unsigned client);
>
> bool cpu_physical_memory_snapshot_get_dirty(DirtyBitmapSnapshot *snap,
> ram_addr_t start,
> diff --git a/memory.c b/memory.c
> index cff0ea8f40..84bba7b65c 100644
> --- a/memory.c
> +++ b/memory.c
> @@ -2071,8 +2071,7 @@ DirtyBitmapSnapshot
> *memory_region_snapshot_and_clear_dirty(MemoryRegion *mr,
> {
> assert(mr->ram_block);
> memory_region_sync_dirty_bitmap(mr);
> - return cpu_physical_memory_snapshot_and_clear_dirty(
> - memory_region_get_ram_addr(mr) + addr, size, client);
> + return cpu_physical_memory_snapshot_and_clear_dirty(mr, addr, size,
> client);
> }
>
> bool memory_region_snapshot_get_dirty(MemoryRegion *mr, DirtyBitmapSnapshot
> *snap,
> --
> 2.17.1
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK
- [Qemu-devel] [PATCH v4 00/11] kvm/migration: support KVM_CLEAR_DIRTY_LOG, Peter Xu, 2019/06/03
- [Qemu-devel] [PATCH v4 01/11] migration: No need to take rcu during sync_dirty_bitmap, Peter Xu, 2019/06/03
- [Qemu-devel] [PATCH v4 02/11] memory: Remove memory_region_get_dirty(), Peter Xu, 2019/06/03
- [Qemu-devel] [PATCH v4 03/11] memory: Don't set migration bitmap when without migration, Peter Xu, 2019/06/03
- [Qemu-devel] [PATCH v4 04/11] bitmap: Add bitmap_copy_with_{src|dst}_offset(), Peter Xu, 2019/06/03
- [Qemu-devel] [PATCH v4 05/11] memory: Pass mr into snapshot_and_clear_dirty, Peter Xu, 2019/06/03
- Re: [Qemu-devel] [PATCH v4 05/11] memory: Pass mr into snapshot_and_clear_dirty,
Dr. David Alan Gilbert <=
- [Qemu-devel] [PATCH v4 06/11] memory: Introduce memory listener hook log_clear(), Peter Xu, 2019/06/03
- [Qemu-devel] [PATCH v4 07/11] kvm: Update comments for sync_dirty_bitmap, Peter Xu, 2019/06/03
- [Qemu-devel] [PATCH v4 08/11] kvm: Persistent per kvmslot dirty bitmap, Peter Xu, 2019/06/03
- [Qemu-devel] [PATCH v4 09/11] kvm: Introduce slots lock for memory listener, Peter Xu, 2019/06/03
- [Qemu-devel] [PATCH v4 10/11] kvm: Support KVM_CLEAR_DIRTY_LOG, Peter Xu, 2019/06/03
- [Qemu-devel] [PATCH v4 11/11] migration: Split log_clear() into smaller chunks, Peter Xu, 2019/06/03