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Differential D36549

kmem_malloc/free: Use void * instead of vm_offset_t for kernel pointers.
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Authored by jhb on Sep 13 2022, 1:38 PM.

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Details

Reviewers

markj
kib
manu

Commits

rGf49fd63a6a13: kmem_malloc/free: Use void * instead of vm_offset_t for kernel pointers.

Summary

Sponsored by: DARPA

Diff Detail

Repository

rG FreeBSD src repository

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Build Status

Buildable 47363
Build 44250: arc lint + arc unit

Event Timeline

jhb created this revision.Sep 13 2022, 1:38 PM

Herald added a reviewer: manu. · View Herald TranscriptSep 13 2022, 1:38 PM

Herald added subscribers: linuxkpi, emaste, ae and 3 others. · View Herald Transcript

jhb requested review of this revision.Sep 13 2022, 1:38 PM

Harbormaster completed remote builds in B47363: Diff 110507.Sep 13 2022, 1:38 PM

jhb added a parent revision: D36548: pmap_unmapdev/bios: Accept a pointer instead of a vm_offset_t..Sep 13 2022, 1:38 PM

This will require a __FreeBSD_version bump and needs patches for the following ports (I already have them patched locally, but will need to finalize the patches once the real __FreeBSD_version value is known):

emulators/open-vm-tools
x11/nvidia-driver*

I should clarify that the motivation behind both this change and the pmap_unmapdev change is to reduce friction with CheriBSD for which vm_offset_t as a type doesn't work with these APIs in CHERI kernels (vm_offset_t is an address but not a pointer in CHERI kernels)

kib accepted this revision.Sep 13 2022, 2:01 PM

This revision is now accepted and ready to land.Sep 13 2022, 2:01 PM

\o/

jhb closed this revision.Sep 22 2022, 10:25 PM

jhb added a commit: rGf49fd63a6a13: kmem_malloc/free: Use void * instead of vm_offset_t for kernel pointers..

Revision Contents
Changeset List

Path

Size

sys/

amd64/

amd64/

12 lines

2 lines

11 lines

2 lines

arm/

arm/

busdma_machdep.c

6 lines

2 lines

8 lines

freescale/

imx/

8 lines

nvidia/

drm2/

3 lines

2 lines

2 lines

10 lines

arm64/

arm64/

busdma_bounce.c

6 lines

15 lines

4 lines

compat/

linuxkpi/

common/

include/

linux/

2 lines

src/

6 lines

4 lines

dev/

agp/

8 lines

12 lines

12 lines

4 lines

amd_ecc_inject/

4 lines

drm2/

2 lines

4 lines

16 lines

hyperv/

vmbus/

5 lines

iommu/

4 lines

kvm_clock/

2 lines

liquidio/

4 lines

mlx5/

mlx5_core/

21 lines

i386/

i386/

4 lines

2 lines

kern/

16 lines

subr_busdma_bufalloc.c

4 lines

powerpc/

aim/

2 lines

powerpc/

busdma_machdep.c

4 lines

2 lines

riscv/

riscv/

busdma_bounce.c

6 lines

6 lines

2 lines

vm/

4 lines

14 lines

27 lines

48 lines

x86/

iommu/

2 lines

intel_intrmap.c

9 lines

4 lines

x86/

busdma_bounce.c

6 lines

3 lines

Diff 110507

sys/amd64/amd64/mp_machdep.c

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sys/amd64/amd64/pmap.c

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sys/amd64/amd64/sys_machdep.c

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sys/amd64/amd64/vm_machdep.c

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sys/arm/arm/busdma_machdep.c

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sys/arm/arm/mp_machdep.c

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sys/arm/arm/pmap-v6.c

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sys/arm/freescale/imx/imx6_sdma.c

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sys/arm/nvidia/drm2/tegra_dc.c

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sys/arm/nvidia/drm2/tegra_drm.h

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sys/arm/nvidia/tegra_pcie.c

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sys/arm/nvidia/tegra_xhci.c

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sys/arm64/arm64/busdma_bounce.c

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sys/arm64/arm64/mp_machdep.c

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sys/arm64/arm64/pmap.c

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sys/compat/linuxkpi/common/include/linux/dma-mapping.h

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sys/compat/linuxkpi/common/src/linux_page.c

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sys/compat/linuxkpi/common/src/linux_pci.c

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sys/dev/agp/agp.c

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sys/dev/agp/agp_amd.c

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sys/dev/agp/agp_ati.c

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sys/dev/agp/agp_i810.c

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sys/dev/amd_ecc_inject/ecc_inject.c

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sys/dev/drm2/drmP.h

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sys/dev/drm2/drm_bufs.c

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sys/dev/drm2/drm_scatter.c

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sys/dev/hyperv/vmbus/hyperv.c

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sys/dev/iommu/busdma_iommu.c

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sys/dev/kvm_clock/kvm_clock.c

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sys/dev/liquidio/lio_network.h

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sys/dev/mlx5/mlx5_core/mlx5_fwdump.c

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sys/i386/i386/mp_machdep.c

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sys/i386/i386/pmap.c

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sys/kern/kern_malloc.c

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sys/kern/subr_busdma_bufalloc.c

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sys/powerpc/aim/mmu_radix.c

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sys/powerpc/powerpc/busdma_machdep.c

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sys/powerpc/powerpc/mp_machdep.c

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sys/riscv/riscv/busdma_bounce.c

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sys/riscv/riscv/mp_machdep.c

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sys/riscv/riscv/pmap.c

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sys/vm/uma_core.c

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sys/vm/vm_extern.h

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sys/vm/vm_init.c

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sys/vm/vm_kern.c

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sys/x86/iommu/intel_dmar.h

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sys/x86/iommu/intel_intrmap.c

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sys/x86/iommu/intel_qi.c

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sys/x86/x86/busdma_bounce.c

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sys/x86/x86/mp_x86.c

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