65 lines
2.2 KiB
Diff
65 lines
2.2 KiB
Diff
From 1675d767aa9bd496178b4d74e01a40dbbd97eccb Mon Sep 17 00:00:00 2001
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From: Kunkun Jiang <jiangkunkun@huawei.com>
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Date: Tue, 11 May 2021 10:08:13 +0800
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Subject: [PATCH] vfio: Introduce helpers to mark dirty pages of a RAM section
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Extract part of the code from vfio_sync_dirty_bitmap to form a
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new helper, which allows to mark dirty pages of a RAM section.
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This helper will be called for nested stage.
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Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com>
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---
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hw/vfio/common.c | 22 ++++++++++++++--------
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1 file changed, 14 insertions(+), 8 deletions(-)
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diff --git a/hw/vfio/common.c b/hw/vfio/common.c
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index bdfcc854fe..6136b1ef61 100644
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--- a/hw/vfio/common.c
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+++ b/hw/vfio/common.c
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@@ -1566,6 +1566,19 @@ err_out:
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return ret;
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}
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+static int vfio_dma_sync_ram_section_dirty_bitmap(VFIOContainer *container,
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+ MemoryRegionSection *section)
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+{
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+ ram_addr_t ram_addr;
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+
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+ ram_addr = memory_region_get_ram_addr(section->mr) +
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+ section->offset_within_region;
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+
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+ return vfio_get_dirty_bitmap(container,
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+ REAL_HOST_PAGE_ALIGN(section->offset_within_address_space),
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+ int128_get64(section->size), ram_addr);
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+}
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+
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typedef struct {
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IOMMUNotifier n;
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VFIOGuestIOMMU *giommu;
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@@ -1650,8 +1663,6 @@ static int vfio_sync_ram_discard_listener_dirty_bitmap(VFIOContainer *container,
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static int vfio_sync_dirty_bitmap(VFIOContainer *container,
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MemoryRegionSection *section)
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{
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- ram_addr_t ram_addr;
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-
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if (memory_region_is_iommu(section->mr)) {
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VFIOGuestIOMMU *giommu;
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@@ -1682,12 +1693,7 @@ static int vfio_sync_dirty_bitmap(VFIOContainer *container,
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return vfio_sync_ram_discard_listener_dirty_bitmap(container, section);
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}
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- ram_addr = memory_region_get_ram_addr(section->mr) +
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- section->offset_within_region;
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-
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- return vfio_get_dirty_bitmap(container,
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- REAL_HOST_PAGE_ALIGN(section->offset_within_address_space),
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- int128_get64(section->size), ram_addr);
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+ return vfio_dma_sync_ram_section_dirty_bitmap(container, section);
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}
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static void vfio_listener_log_sync(MemoryListener *listener,
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--
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2.27.0
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