vboxguestdrivers: fix build against kernel v5.10+

We need to adjust the vboxguest drivers to build against kernels
5.10+.

These are backports from the virtual box SVN repository and can be
dropped in future uprevs.

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
(cherry picked from commit 22eaac640f80df44108a5565127181c94645a032)
Signed-off-by: Armin Kuster <akuster808@gmail.com>

4 files changed, 489 insertions, 0 deletions

diff --git a/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/0001-Additions-linux-drm-Adjustment-for-Linux-5.10.patch b/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/0001-Additions-linux-drm-Adjustment-for-Linux-5.10.patch
new file mode 100644
index 000000000..a444901f8
--- /dev/null
+++ b/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/0001-Additions-linux-drm-Adjustment-for-Linux-5.10.patch
@@ -0,0 +1,321 @@
+From b6c765d693a0833b94cb2e91b32842570c3458d2 Mon Sep 17 00:00:00 2001
+From: vboxsync <vboxsync@cfe28804-0f27-0410-a406-dd0f0b0b656f>
+Date: Tue, 15 Dec 2020 22:29:56 +0000
+Subject: [PATCH] Additions/linux/drm: Adjustment for Linux 5.10.
+
+Upstream-Status: Backport
+
+git-svn-id: http://www.virtualbox.org/svn/vbox@87092 cfe28804-0f27-0410-a406-dd0f0b0b656f
+
+Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
+
+---
+ src/VBox/Additions/linux/drm/vbox_drv.h | 10 +-
+ src/VBox/Additions/linux/drm/vbox_fb.c  |  2 +-
+ .../src/VBox/Additions/linux/drm/vbox_mode.c  |  2 +-
+ src/VBox/Additions/linux/drm/vbox_ttm.c | 99 +++++++++++++++++--
+ 4 files changed, 99 insertions(+), 14 deletions(-)
+
+diff --git a/src/VBox/Additions/linux/drm/vbox_drv.h b/src/VBox/Additions/linux/drm/vbox_drv.h
+index 8c85371749..7937f2f2d2 100644
+--- a/src/VBox/Additions/linux/drm/vbox_drv.h
++++ b/src/VBox/Additions/linux/drm/vbox_drv.h
+@@ -175,6 +175,9 @@
+ #include <drm/ttm/ttm_placement.h>
+ #include <drm/ttm/ttm_memory.h>
+ #include <drm/ttm/ttm_module.h>
++#if RTLNX_VER_MIN(5,10,0)
++# include <drm/ttm/ttm_resource.h>
++#endif
+ 
+ #include "vboxvideo_guest.h"
+ #include "vboxvideo_vbe.h"
+@@ -444,7 +447,10 @@ int vbox_bo_create(struct drm_device *dev, int size, int align,
+ int vbox_gem_create(struct drm_device *dev,
+                    u32 size, bool iskernel, struct drm_gem_object **obj);
+ 
+-int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag, u64 *gpu_addr);
++#define VBOX_MEM_TYPE_VRAM   0x1
++#define VBOX_MEM_TYPE_SYSTEM 0x2
++
++int vbox_bo_pin(struct vbox_bo *bo, u32 mem_type, u64 *gpu_addr);
+ int vbox_bo_unpin(struct vbox_bo *bo);
+ 
+ static inline int vbox_bo_reserve(struct vbox_bo *bo, bool no_wait)
+@@ -469,7 +475,7 @@ static inline void vbox_bo_unreserve(struct vbox_bo *bo)
+        ttm_bo_unreserve(&bo->bo);
+ }
+ 
+-void vbox_ttm_placement(struct vbox_bo *bo, int domain);
++void vbox_ttm_placement(struct vbox_bo *bo, u32 mem_type);
+ int vbox_bo_push_sysram(struct vbox_bo *bo);
+ int vbox_mmap(struct file *filp, struct vm_area_struct *vma);
+ 
+diff --git a/src/VBox/Additions/linux/drm/vbox_fb.c b/src/VBox/Additions/linux/drm/vbox_fb.c
+index adead98d3d..7182d9da1a 100644
+--- a/src/VBox/Additions/linux/drm/vbox_fb.c
++++ b/src/VBox/Additions/linux/drm/vbox_fb.c
+@@ -295,7 +295,7 @@ static int vboxfb_create(struct drm_fb_helper *helper,
+        if (ret)
+                return ret;
+ 
+-       ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM, NULL);
++       ret = vbox_bo_pin(bo, VBOX_MEM_TYPE_VRAM, NULL);
+        if (ret) {
+                vbox_bo_unreserve(bo);
+                return ret;
+diff --git a/src/VBox/Additions/linux/drm/vbox_mode.c b/src/VBox/Additions/linux/drm/vbox_mode.c
+index ce7d135cb6..5557db5ef8 100644
+--- a/src/VBox/Additions/linux/drm/vbox_mode.c
++++ b/src/VBox/Additions/linux/drm/vbox_mode.c
+@@ -227,7 +227,7 @@ static int vbox_crtc_set_base(struct drm_crtc *crtc,
+        if (ret)
+                return ret;
+ 
+-       ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
++       ret = vbox_bo_pin(bo, VBOX_MEM_TYPE_VRAM, &gpu_addr);
+        vbox_bo_unreserve(bo);
+        if (ret)
+                return ret;
+diff --git a/src/VBox/Additions/linux/drm/vbox_ttm.c b/src/VBox/Additions/linux/drm/vbox_ttm.c
+index bf87aabc05..5eac926a42 100644
+--- a/src/VBox/Additions/linux/drm/vbox_ttm.c
++++ b/src/VBox/Additions/linux/drm/vbox_ttm.c
+@@ -41,6 +41,7 @@
+ #define PLACEMENT_FLAGS(placement) ((placement).flags)
+ #endif
+ 
++
+ static inline struct vbox_private *vbox_bdev(struct ttm_bo_device *bd)
+ {
+        return container_of(bd, struct vbox_private, ttm.bdev);
+@@ -125,6 +126,7 @@ static bool vbox_ttm_bo_is_vbox_bo(struct ttm_buffer_object *bo)
+        return false;
+ }
+ 
++#if RTLNX_VER_MAX(5,10,0)
+ static int
+ vbox_bo_init_mem_type(struct ttm_bo_device *bdev, u32 type,
+                      struct ttm_mem_type_manager *man)
+@@ -148,6 +150,7 @@ vbox_bo_init_mem_type(struct ttm_bo_device *bdev, u32 type,
+ 
+        return 0;
+ }
++#endif
+ 
+ static void
+ vbox_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
+@@ -157,7 +160,7 @@ vbox_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
+        if (!vbox_ttm_bo_is_vbox_bo(bo))
+                return;
+ 
+-       vbox_ttm_placement(vboxbo, TTM_PL_FLAG_SYSTEM);
++       vbox_ttm_placement(vboxbo, VBOX_MEM_TYPE_SYSTEM);
+        *pl = vboxbo->placement;
+ }
+ 
+@@ -167,11 +170,12 @@ static int vbox_bo_verify_access(struct ttm_buffer_object *bo,
+        return 0;
+ }
+ 
++#if RTLNX_VER_MAX(5,10,0)
+ static int vbox_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
+                                   struct ttm_mem_reg *mem)
+ {
+-       struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
+        struct vbox_private *vbox = vbox_bdev(bdev);
++       struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
+ 
+        mem->bus.addr = NULL;
+        mem->bus.offset = 0;
+@@ -194,12 +198,53 @@ static int vbox_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
+        }
+        return 0;
+ }
++#else
++static int vbox_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
++                                  struct ttm_resource *mem)
++{
++       struct vbox_private *vbox = vbox_bdev(bdev);
++       mem->bus.addr = NULL;
++       mem->bus.offset = 0;
++       mem->size = mem->num_pages << PAGE_SHIFT;
++       mem->start = 0;
++       mem->bus.is_iomem = false;
++       switch (mem->mem_type) {
++       case TTM_PL_SYSTEM:
++               /* system memory */
++               return 0;
++       case TTM_PL_VRAM:
++               mem->bus.offset = mem->start << PAGE_SHIFT;
++               mem->start = pci_resource_start(vbox->dev->pdev, 0);
++               mem->bus.is_iomem = true;
++               break;
++       default:
++               return -EINVAL;
++       }
++       return 0;
++}
++#endif
+ 
++
++
++#if RTLNX_VER_MIN(5,10,0)
++static void vbox_ttm_io_mem_free(struct ttm_bo_device *bdev,
++                                struct ttm_resource *mem)
++{
++}
++#else
+ static void vbox_ttm_io_mem_free(struct ttm_bo_device *bdev,
+                                 struct ttm_mem_reg *mem)
+ {
+ }
++#endif
+ 
++#if RTLNX_VER_MIN(5,10,0)
++static void vbox_ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *tt)
++{
++       ttm_tt_fini(tt);
++       kfree(tt);
++}
++#else
+ static void vbox_ttm_backend_destroy(struct ttm_tt *tt)
+ {
+        ttm_tt_fini(tt);
+@@ -209,6 +254,7 @@ static void vbox_ttm_backend_destroy(struct ttm_tt *tt)
+ static struct ttm_backend_func vbox_tt_backend_func = {
+        .destroy = &vbox_ttm_backend_destroy,
+ };
++#endif
+ 
+ #if RTLNX_VER_MAX(4,17,0) && !RTLNX_RHEL_MAJ_PREREQ(7,6) && !RTLNX_SUSE_MAJ_PREREQ(15,1) && !RTLNX_SUSE_MAJ_PREREQ(12,5)
+ static struct ttm_tt *vbox_ttm_tt_create(struct ttm_bo_device *bdev,
+@@ -226,7 +272,9 @@ static struct ttm_tt *vbox_ttm_tt_create(struct ttm_buffer_object *bo,
+        if (!tt)
+                return NULL;
+ 
++#if RTLNX_VER_MAX(5,10,0)
+        tt->func = &vbox_tt_backend_func;
++#endif
+ #if RTLNX_VER_MAX(4,17,0) && !RTLNX_RHEL_MAJ_PREREQ(7,6) && !RTLNX_SUSE_MAJ_PREREQ(15,1) && !RTLNX_SUSE_MAJ_PREREQ(12,5)
+        if (ttm_tt_init(tt, bdev, size, page_flags, dummy_read_page)) {
+ #else
+@@ -261,11 +309,16 @@ static void vbox_ttm_tt_unpopulate(struct ttm_tt *ttm)
+ 
+ static struct ttm_bo_driver vbox_bo_driver = {
+        .ttm_tt_create = vbox_ttm_tt_create,
++#if RTLNX_VER_MIN(5,10,0)
++       .ttm_tt_destroy = vbox_ttm_tt_destroy,
++#endif
+ #if RTLNX_VER_MAX(4,17,0)
+        .ttm_tt_populate = vbox_ttm_tt_populate,
+        .ttm_tt_unpopulate = vbox_ttm_tt_unpopulate,
+ #endif
++#if RTLNX_VER_MAX(5,10,0)
+        .init_mem_type = vbox_bo_init_mem_type,
++#endif
+ #if RTLNX_VER_MIN(4,10,0) || RTLNX_RHEL_MAJ_PREREQ(7,4)
+        .eviction_valuable = ttm_bo_eviction_valuable,
+ #endif
+@@ -318,8 +371,13 @@ int vbox_mm_init(struct vbox_private *vbox)
+ #endif
+        }
+ 
++#if RTLNX_VER_MIN(5,10,0)
++       ret = ttm_range_man_init(bdev, TTM_PL_VRAM, false,
++                            vbox->available_vram_size >> PAGE_SHIFT);
++#else
+        ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM,
+                             vbox->available_vram_size >> PAGE_SHIFT);
++#endif
+        if (ret) {
+                DRM_ERROR("Failed ttm VRAM init: %d\n", ret);
+                goto err_device_release;
+@@ -359,7 +417,7 @@ void vbox_mm_fini(struct vbox_private *vbox)
+ #endif
+ }
+ 
+-void vbox_ttm_placement(struct vbox_bo *bo, int domain)
++void vbox_ttm_placement(struct vbox_bo *bo, u32 mem_type)
+ {
+        u32 c = 0;
+ #if RTLNX_VER_MAX(3,18,0) && !RTLNX_RHEL_MAJ_PREREQ(7,2)
+@@ -372,15 +430,36 @@ void vbox_ttm_placement(struct vbox_bo *bo, int domain)
+        bo->placement.placement = bo->placements;
+        bo->placement.busy_placement = bo->placements;
+ 
+-       if (domain & TTM_PL_FLAG_VRAM)
++       if (mem_type & VBOX_MEM_TYPE_VRAM) {
++#if RTLNX_VER_MIN(5,10,0)
++               bo->placements[c].mem_type = TTM_PL_VRAM;
++               PLACEMENT_FLAGS(bo->placements[c++]) =
++                   TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED;
++#else
+                PLACEMENT_FLAGS(bo->placements[c++]) =
+                    TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
+-       if (domain & TTM_PL_FLAG_SYSTEM)
++#endif
++       }
++       if (mem_type & VBOX_MEM_TYPE_SYSTEM) {
++#if RTLNX_VER_MIN(5,10,0)
++               bo->placements[c].mem_type = TTM_PL_SYSTEM;
++               PLACEMENT_FLAGS(bo->placements[c++]) =
++                   TTM_PL_MASK_CACHING;
++#else
+                PLACEMENT_FLAGS(bo->placements[c++]) =
+                    TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
+-       if (!c)
++#endif
++       }
++       if (!c) {
++#if RTLNX_VER_MIN(5,10,0)
++               bo->placements[c].mem_type = TTM_PL_SYSTEM;
++               PLACEMENT_FLAGS(bo->placements[c++]) =
++                   TTM_PL_MASK_CACHING;
++#else
+                PLACEMENT_FLAGS(bo->placements[c++]) =
+                    TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
++#endif
++       }
+ 
+        bo->placement.num_placement = c;
+        bo->placement.num_busy_placement = c;
+@@ -414,7 +493,7 @@ int vbox_bo_create(struct drm_device *dev, int size, int align,
+        vboxbo->bo.bdev->dev_mapping = dev->dev_mapping;
+ #endif
+ 
+-       vbox_ttm_placement(vboxbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
++       vbox_ttm_placement(vboxbo, VBOX_MEM_TYPE_VRAM | VBOX_MEM_TYPE_SYSTEM);
+ 
+        acc_size = ttm_bo_dma_acc_size(&vbox->ttm.bdev, size,
+                                       sizeof(struct vbox_bo));
+@@ -452,7 +531,7 @@ static inline u64 vbox_bo_gpu_offset(struct vbox_bo *bo)
+ #endif
+ }
+ 
+-int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag, u64 *gpu_addr)
++int vbox_bo_pin(struct vbox_bo *bo, u32 mem_type, u64 *gpu_addr)
+ {
+ #if RTLNX_VER_MIN(4,16,0) || RTLNX_RHEL_MAJ_PREREQ(7,6) || RTLNX_SUSE_MAJ_PREREQ(15,1) || RTLNX_SUSE_MAJ_PREREQ(12,5)
+        struct ttm_operation_ctx ctx = { false, false };
+@@ -467,7 +546,7 @@ int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag, u64 *gpu_addr)
+                return 0;
+        }
+ 
+-       vbox_ttm_placement(bo, pl_flag);
++       vbox_ttm_placement(bo, mem_type);
+ 
+        for (i = 0; i < bo->placement.num_placement; i++)
+                PLACEMENT_FLAGS(bo->placements[i]) |= TTM_PL_FLAG_NO_EVICT;
+@@ -540,7 +619,7 @@ int vbox_bo_push_sysram(struct vbox_bo *bo)
+        if (bo->kmap.virtual)
+                ttm_bo_kunmap(&bo->kmap);
+ 
+-       vbox_ttm_placement(bo, TTM_PL_FLAG_SYSTEM);
++       vbox_ttm_placement(bo, VBOX_MEM_TYPE_SYSTEM);
+ 
+        for (i = 0; i < bo->placement.num_placement; i++)
+                PLACEMENT_FLAGS(bo->placements[i]) |= TTM_PL_FLAG_NO_EVICT;
+-- 
+2.19.1
+
diff --git a/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/0001-Runtime-memobj-r0drv-linux.c-Changes-to-support-the-.patch b/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/0001-Runtime-memobj-r0drv-linux.c-Changes-to-support-the-.patch
new file mode 100644
index 000000000..db27cb883
--- /dev/null
+++ b/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/0001-Runtime-memobj-r0drv-linux.c-Changes-to-support-the-.patch
@@ -0,0 +1,119 @@
+From 2a6e3cf63f58e289802a11faad5fb495e2d04e97 Mon Sep 17 00:00:00 2001
+From: vboxsync <vboxsync@cfe28804-0f27-0410-a406-dd0f0b0b656f>
+Date: Wed, 9 Dec 2020 18:59:04 +0000
+Subject: [PATCH] Runtime/memobj-r0drv-linux.c: Changes to support the upcoming
+ 5.10 kernel, bugref:9879
+
+Upstream-Status: Backport
+
+git-svn-id: http://www.virtualbox.org/svn/vbox@87074 cfe28804-0f27-0410-a406-dd0f0b0b656f
+
+Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
+---
+ .../Runtime/r0drv/linux/memobj-r0drv-linux.c  | 68 ++++++++++++++++++-
+ 1 file changed, 67 insertions(+), 1 deletion(-)
+
+--- a/src/VBox/Runtime/r0drv/linux/memobj-r0drv-linux.c
++++ b/src/VBox/Runtime/r0drv/linux/memobj-r0drv-linux.c
+@@ -56,9 +56,19 @@
+  * Whether we use alloc_vm_area (3.2+) for executable memory.
+  * This is a must for 5.8+, but we enable it all the way back to 3.2.x for
+  * better W^R compliance (fExecutable flag). */
+-#if RTLNX_VER_MIN(3,2,0) || defined(DOXYGEN_RUNNING)
++#if RTLNX_VER_RANGE(3,2,0, 5,10,0) || defined(DOXYGEN_RUNNING)
+ # define IPRT_USE_ALLOC_VM_AREA_FOR_EXEC
+ #endif
++/** @def IPRT_USE_APPLY_TO_PAGE_RANGE_FOR_EXEC
++ * alloc_vm_area was removed with 5.10 so we have to resort to a different way
++ * to allocate executable memory.
++ * It would be possible to remove IPRT_USE_ALLOC_VM_AREA_FOR_EXEC and use
++ * this path execlusively for 3.2+ but no time to test it really works on every
++ * supported kernel, so better play safe for now.
++ */
++#if RTLNX_VER_MIN(5,10,0) || defined(DOXYGEN_RUNNING)
++# define IPRT_USE_APPLY_TO_PAGE_RANGE_FOR_EXEC
++#endif
+ 
+ /*
+  * 2.6.29+ kernels don't work with remap_pfn_range() anymore because
+@@ -502,6 +512,46 @@ static void rtR0MemObjLinuxFreePages(PRT
+ }
+ 
+ 
++#ifdef IPRT_USE_APPLY_TO_PAGE_RANGE_FOR_EXEC
++/**
++ * User data passed to the apply_to_page_range() callback.
++ */
++typedef struct LNXAPPLYPGRANGE
++{
++    /** Pointer to the memory object. */
++    PRTR0MEMOBJLNX pMemLnx;
++    /** The page protection flags to apply. */
++    pgprot_t       fPg;
++} LNXAPPLYPGRANGE;
++/** Pointer to the user data. */
++typedef LNXAPPLYPGRANGE *PLNXAPPLYPGRANGE;
++/** Pointer to the const user data. */
++typedef const LNXAPPLYPGRANGE *PCLNXAPPLYPGRANGE;
++
++/**
++ * Callback called in apply_to_page_range().
++ *
++ * @returns Linux status code.
++ * @param   pPte                Pointer to the page table entry for the given address.
++ * @param   uAddr               The address to apply the new protection to.
++ * @param   pvUser              The opaque user data.
++ */
++#ifdef __i386__
++static int rtR0MemObjLinuxApplyPageRange(pte_t *pPte, unsigned long uAddr, void *pvUser)
++#else
++static DECLCALLBACK(int) rtR0MemObjLinuxApplyPageRange(pte_t *pPte, unsigned long uAddr, void *pvUser)
++#endif
++{
++    PCLNXAPPLYPGRANGE pArgs = (PCLNXAPPLYPGRANGE)pvUser;
++    PRTR0MEMOBJLNX pMemLnx = pArgs->pMemLnx;
++    size_t idxPg = (uAddr - (unsigned long)pMemLnx->Core.pv) >> PAGE_SHIFT;
++
++    set_pte(pPte, mk_pte(pMemLnx->apPages[idxPg], pArgs->fPg));
++    return 0;
++}
++#endif
++
++
+ /**
+  * Maps the allocation into ring-0.
+  *
+@@ -584,6 +634,11 @@ static int rtR0MemObjLinuxVMap(PRTR0MEMO
+         else
+ # endif
+         {
++#  if defined(IPRT_USE_APPLY_TO_PAGE_RANGE_FOR_EXEC)
++            if (fExecutable)
++                pgprot_val(fPg) |= _PAGE_NX; /* Uses RTR0MemObjProtect to clear NX when memory ready, W^X fashion. */
++#  endif
++
+ # ifdef VM_MAP
+             pMemLnx->Core.pv = vmap(&pMemLnx->apPages[0], pMemLnx->cPages, VM_MAP, fPg);
+ # else
+@@ -1851,6 +1906,21 @@ DECLHIDDEN(int) rtR0MemObjNativeProtect(
+         preempt_enable();
+         return VINF_SUCCESS;
+     }
++# elif defined(IPRT_USE_APPLY_TO_PAGE_RANGE_FOR_EXEC)
++    PRTR0MEMOBJLNX pMemLnx = (PRTR0MEMOBJLNX)pMem;
++    if (   pMemLnx->fExecutable
++        && pMemLnx->fMappedToRing0)
++    {
++        LNXAPPLYPGRANGE Args;
++        Args.pMemLnx = pMemLnx;
++        Args.fPg = rtR0MemObjLinuxConvertProt(fProt, true /*fKernel*/);
++        int rcLnx = apply_to_page_range(current->active_mm, (unsigned long)pMemLnx->Core.pv + offSub, cbSub,
++                                        rtR0MemObjLinuxApplyPageRange, (void *)&Args);
++        if (rcLnx)
++            return VERR_NOT_SUPPORTED;
++
++        return VINF_SUCCESS;
++    }
+ # endif
+ 
+     NOREF(pMem);
diff --git a/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/0001-linser-vboxsf-Adjustment-for-linux-5.10-TASK_SIZE_MA.patch b/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/0001-linser-vboxsf-Adjustment-for-linux-5.10-TASK_SIZE_MA.patch
new file mode 100644
index 000000000..3cfe2e917
--- /dev/null
+++ b/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers/0001-linser-vboxsf-Adjustment-for-linux-5.10-TASK_SIZE_MA.patch
@@ -0,0 +1,46 @@
+From a276f8bc5e4515f7ea51e2c56e0e634a723ca104 Mon Sep 17 00:00:00 2001
+From: vboxsync <vboxsync@cfe28804-0f27-0410-a406-dd0f0b0b656f>
+Date: Tue, 8 Dec 2020 13:52:53 +0000
+Subject: [PATCH] linser/vboxsf: Adjustment for linux 5.10 - TASK_SIZE_MAX
+ replaces USER_DS.seg. bugref:9879
+
+Upstream-Status: Backport
+
+git-svn-id: http://www.virtualbox.org/svn/vbox@87053 cfe28804-0f27-0410-a406-dd0f0b0b656f
+
+Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
+---
+ src/VBox/Additions/linux/sharedfolders/regops.c | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/src/VBox/Additions/linux/sharedfolders/regops.c b/src/VBox/Additions/linux/sharedfolders/regops.c
+index e1fad3d820..401fd69930 100644
+--- a/src/VBox/Additions/linux/sharedfolders/regops.c
++++ b/src/VBox/Additions/linux/sharedfolders/regops.c
+@@ -147,7 +147,11 @@ static int vbsf_iov_iter_detect_type(struct iovec const *paIov, size_t cSegs)
+     while (cSegs-- > 0) {
+         if (paIov->iov_len > 0) {
+             if (access_ok(VERIFY_READ, paIov->iov_base, paIov->iov_len))
++#if RTLNX_VER_MIN(5,10,0)
++                return (uintptr_t)paIov->iov_base >= TASK_SIZE_MAX ? ITER_KVEC : 0;
++#else
+                 return (uintptr_t)paIov->iov_base >= USER_DS.seg ? ITER_KVEC : 0;
++#endif
+             AssertMsgFailed(("%p LB %#zx\n", paIov->iov_base, paIov->iov_len));
+             break;
+         }
+@@ -1401,7 +1405,10 @@ static int vbsf_lock_user_pages_failed_check_kernel(uintptr_t uPtrFrom, size_t c
+     /*
+      * Check that this is valid user memory that is actually in the kernel range.
+      */
+-#if RTLNX_VER_MIN(5,0,0) || RTLNX_RHEL_MIN(8,1)
++#if RTLNX_VER_MIN(5,10,0)
++    if (   access_ok((void *)uPtrFrom, cPages << PAGE_SHIFT)
++        && uPtrFrom >= TASK_SIZE_MAX)
++#elif RTLNX_VER_MIN(5,0,0) || RTLNX_RHEL_MIN(8,1)
+     if (   access_ok((void *)uPtrFrom, cPages << PAGE_SHIFT)
+         && uPtrFrom >= USER_DS.seg)
+ #else
+-- 
+2.19.1
+
diff --git a/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers_6.1.16.bb b/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers_6.1.16.bb
index 9282f663b..ff639c09f 100644
--- a/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers_6.1.16.bb
+++ b/meta-oe/recipes-support/vboxguestdrivers/vboxguestdrivers_6.1.16.bb
@@ -13,6 +13,9 @@ VBOX_NAME = "VirtualBox-${PV}"
 
 SRC_URI = "http://download.virtualbox.org/virtualbox/${PV}/${VBOX_NAME}.tar.bz2 \
     file://Makefile.utils \
+    file://0001-Additions-linux-drm-Adjustment-for-Linux-5.10.patch \
+    file://0001-Runtime-memobj-r0drv-linux.c-Changes-to-support-the-.patch \
+    file://0001-linser-vboxsf-Adjustment-for-linux-5.10-TASK_SIZE_MA.patch \
 "
 SRC_URI[md5sum] = "a12a647f6c114f2cb1571089b36841fe"
 SRC_URI[sha256sum] = "49c1990da16d8a3d5bda8cdb961ec8195a901e67e4c79aea44c1521a5fc2f9f1"