Am 11. Februar 2026 05:53:45 UTC schrieb Mohamed Mediouni
<[email protected]>:
>x86_64 WHPX updates:
>
>- fixing debug support, which was broken since around: "gdbstub: move guest
>debug support check to ops"
>a48e7d9e52f8fe8b47f4c74f3e99d9d677b87fe5
>- switch over from winhvemulation to common x86 VM exit emulation code
>- remove some log lines
Hi Mohamed,
I really like this series because it replaces proprietary code with already
existing open-source one. So I gave it a spin. Unfortunately I have to report
that I noticed some problematic performance regressions when booting x86_64
Linux with Grub: Before this series it takes ~20 seconds until the first Linux
output is visible, and with this series applied it takes a bit more than 2
minutes, i.e. about 6 times as slow. Also, when using a GUI, mouse button
presses easily take a second until reaction which is rather unusable. So I
think this series needs more work and I'm happy to help with testing.
Best regards,
Bernhard
>
>Mohamed Mediouni (7):
> whpx: re-enable guest debug support on x86
> whpx: preparatory changes before switching over from winhvemulation
> whpx: refactor whpx_destroy_vcpu to arch-specific function
> whpx: move whpx_get_reg/whpx_set_reg to generic code
> whpx: x86: switch over from winhvemulation to target/i386/emulate
> whpx: remove remaining winhvemulation support code
> whpx: x86: remove messages
>
> accel/whpx/whpx-accel-ops.c | 8 +
> accel/whpx/whpx-common.c | 62 ++++---
> include/system/whpx-all.h | 5 +
> include/system/whpx-common.h | 6 +-
> include/system/whpx-internal.h | 16 --
> meson.build | 3 +-
> target/arm/whpx/whpx-all.c | 33 +---
> target/i386/cpu.h | 2 +-
> target/i386/emulate/meson.build | 1 +
> target/i386/mshv/meson.build | 4 +
> target/i386/whpx/whpx-all.c | 308 ++++++++++++++++++++------------
> 11 files changed, 252 insertions(+), 196 deletions(-)
>
