[PATCH 0/6] VMware hypercalls enhancements

From: Alexey Makhalov
Date: Wed Nov 22 2023 - 18:32:00 EST


VMware hypercalls invocations were all spread out across the kernel
implementing same ABI as in-place asm-inline. With encrypted memory
and confidential computing it became harder to maintain every changes
in these hypercall implementations.

Intention of this patchset is to introduce arch independent VMware
hypercall API layer other subsystems such as device drivers can call
to, while hiding architecture specific implementation behind.

Second patch introduces the vmware_hypercall low and high bandwidth
families of functions, with little enhancements there.
Sixth patch adds tdx hypercall support

arm64 implementation of vmware_hypercalls is in drivers/gpu/drm/
vmwgfx/vmwgfx_msg_arm64.h and going to be moved to arch/arm64 with
a separate patchset with the introduction of VMware Linux guest
support for arm64.

No functional changes in drivers/input/mouse/vmmouse.c and
drivers/ptp/ptp_vmw.c

Alexey Makhalov (6):
x86/vmware: Move common macros to vmware.h
x86/vmware: Introduce vmware_hypercall API
ptp/vmware: Use vmware_hypercall API
input/vmmouse: Use vmware_hypercall API
drm/vmwgfx: Use vmware_hypercall API
x86/vmware: Add TDX hypercall support

arch/x86/include/asm/vmware.h | 327 ++++++++++++++++++++--
arch/x86/kernel/cpu/vmware.c | 101 ++-----
drivers/gpu/drm/vmwgfx/vmwgfx_msg.c | 173 ++++--------
drivers/gpu/drm/vmwgfx/vmwgfx_msg_arm64.h | 197 +++++++++----
drivers/gpu/drm/vmwgfx/vmwgfx_msg_x86.h | 185 ------------
drivers/input/mouse/vmmouse.c | 76 ++---
drivers/ptp/ptp_vmw.c | 12 +-
7 files changed, 551 insertions(+), 520 deletions(-)

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2.39.0