linux/arch/arm64
Oliver Upton 82affc97af Revert "KVM: arm64: Snapshot all non-zero RES0/RES1 sysreg fields for later checking"
This reverts commits 99101dda29 and
b80b701d5a.

Linus reports that the sysreg reserved bit checks in KVM have led to
build failures, arising from commit fdd867fe9b ("arm64/sysreg: Add
register fields for ID_AA64DFR1_EL1") giving meaning to fields that were
previously RES0.

Of course, this is a genuine issue, since KVM's sysreg emulation depends
heavily on the definition of reserved fields. But at this point the
build breakage is far more offensive, and the right course of action is
to revert and retry later.

All of these build-time assertions were on by default before
commit 99101dda29 ("KVM: arm64: Make build-time check of RES0/RES1
bits optional"), so deliberately revert it all atomically to avoid
introducing further breakage of bisection.

Link: https://lore.kernel.org/all/CAHk-=whCvkhc8BbFOUf1ddOsgSGgEjwoKv77=HEY1UiVCydGqw@mail.gmail.com/
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-03-15 17:50:22 -07:00
..
boot MTD 2024-03-15 12:29:57 -07:00
configs arm64 updates for 6.9: 2024-03-14 15:35:42 -07:00
crypto This update includes the following changes: 2024-03-15 14:46:54 -07:00
hyperv
include S390: 2024-03-15 13:03:13 -07:00
kernel S390: 2024-03-15 13:03:13 -07:00
kvm Revert "KVM: arm64: Snapshot all non-zero RES0/RES1 sysreg fields for later checking" 2024-03-15 17:50:22 -07:00
lib arm64: Get rid of ARM64_HAS_NO_HW_PREFETCH 2023-12-05 12:02:52 +00:00
mm - Sumanth Korikkar has taught s390 to allocate hotplug-time page frames 2024-03-14 17:43:30 -07:00
net arm64, bpf: Use bpf_prog_pack for arm64 bpf trampoline 2024-03-09 08:39:55 -08:00
tools S390: 2024-03-15 13:03:13 -07:00
xen
Kbuild
Kconfig S390: 2024-03-15 13:03:13 -07:00
Kconfig.debug
Kconfig.platforms
Makefile arm64: rust: Enable Rust support for AArch64 2024-02-09 16:12:36 +00:00