KVM: arm64: Sign-extend VA for range-based TLBI invalidation

Browse source

When the decode_range_tlbi() helper was moved to be used for S1 TLBIs,
the required sign extension was omitted. Add it.

As a result, special care must be taken to not overflow PA bits when
this is used for S2 invalidation.

Fixes: 85bba00425 ("KVM: arm64: nv: Move TLBI range decoding to a helper")
Reported-by: sashiko-bot@kernel.org
Link: https://lore.kernel.org/r/20260801130337.EB2BA1F00AC4@smtp.kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260806091026.620700-7-maz@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>

...

This commit is contained in:

Marc Zyngier 2026-08-06 10:10:24 +01:00 • committed by Oliver Upton

parent 38640bc32b

commit 2393470085

2 changed files with 18 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

7

arch/arm64/include/asm/kvm_nested.h

View file

11

arch/arm64/kvm/sys_regs.c

View file