[GIT PULL] Hyper-V fixes for v7.0-rc5

From: Wei Liu

Date: Fri Mar 20 2026 - 01:15:34 EST


Hi Linus

The following changes since commit 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f:

Linux 7.0-rc1 (2026-02-22 13:18:59 -0800)

are available in the Git repository at:

ssh://git@xxxxxxxxxxxxxxxxxxx/pub/scm/linux/kernel/git/hyperv/linux.git tags/hyperv-fixes-signed-20260319

for you to fetch changes up to c0e296f257671ba10249630fe58026f29e4804d9:

mshv: Fix error handling in mshv_region_pin (2026-03-18 16:18:49 +0000)

----------------------------------------------------------------
hyperv-fixes for v7.0-rc5
- Fix ARM64 MSHV support (Anirudh Rayabharam)
- Fix MSHV driver memory handling issues (Stanislav Kinsburskii)
- Update maintainers for Hyper-V DRM driver (Saurabh Sengar)
- Misc clean up in MSHV crashdump code (Ard Biesheuvel, Uros Bizjak)
- Minor improvements to MSHV code (Mukesh R, Wei Liu)
- Revert not yet released MSHV scrub partition hypercall (Wei Liu)
----------------------------------------------------------------
Anirudh Rayabharam (Microsoft) (2):
mshv: refactor synic init and cleanup
mshv: add arm64 support for doorbell & intercept SINTs

Ard Biesheuvel (1):
x86/hyperv: Use __naked attribute to fix stackless C function

Mukesh R (1):
mshv: pass struct mshv_user_mem_region by reference

Saurabh Sengar (1):
MAINTAINERS: Update maintainers for Hyper-V DRM driver

Stanislav Kinsburskii (2):
mshv: Fix use-after-free in mshv_map_user_memory error path
mshv: Fix error handling in mshv_region_pin

Uros Bizjak (3):
x86/hyperv: Save segment registers directly to memory in hv_hvcrash_ctxt_save()
x86/hyperv: Use current_stack_pointer to avoid asm() in hv_hvcrash_ctxt_save()
x86/hyperv: Use any general-purpose register when saving %cr2 and %cr8

Wei Liu (2):
x86/hyperv: print out reserved vectors in hexadecimal
Revert "mshv: expose the scrub partition hypercall"

MAINTAINERS | 4 +-
arch/x86/hyperv/hv_crash.c | 118 +++++++++++++-------------
arch/x86/kernel/cpu/mshyperv.c | 5 +-
drivers/hv/mshv_regions.c | 6 +-
drivers/hv/mshv_root.h | 5 +-
drivers/hv/mshv_root_main.c | 93 +++++---------------
drivers/hv/mshv_synic.c | 188 +++++++++++++++++++++++++++++++++++++----
include/hyperv/hvgdk_mini.h | 3 +-
8 files changed, 270 insertions(+), 152 deletions(-)