Re: [PATCH v4 0/4] x86/pvh: fix unbootable VMs again (PVH + KASAN)

From: Borislav Petkov

Date: Wed May 27 2026 - 16:50:32 EST


On Tue, May 26, 2026 at 11:52:32AM -0300, Mauricio Faria de Oliveira wrote:
> The issue of unbootable VMs with CONFIG_PVH due to CONFIG_KASAN is back.

... and we care about that particular configuration because...?

> arch/x86/boot/string.c | 6 ++----
> arch/x86/include/asm/cpuid/api.h | 2 +-
> arch/x86/include/asm/string.h | 21 +-------------------
> arch/x86/include/asm/string_inline.h | 37 ++++++++++++++++++++++++++++++++++++
> arch/x86/platform/pvh/enlighten.c | 3 ++-
> 5 files changed, 43 insertions(+), 26 deletions(-)

I fail to see justification for those gymnastics.

--
Regards/Gruss,
Boris.

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