github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-04 12:35:52 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

KVM: arm64: Make ID_AA64MMFR4_EL1.NV_frac writable

Browse Source 
We want to make sure that it is possible for userspace to configure
whether recursive NV is possible. Make NV_frac writable for that
purpose.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Link: https://lore.kernel.org/r/20250220134907.554085-12-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
This commit is contained in:
Marc Zyngier 2025-02-20 13:49:04 +00:00 committed by Oliver Upton
parent f83c41fb3d
commit 642c23ea8b
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm64/kvm/sys_regs.c
View File

@ -2683,7 +2683,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
ID_WRITABLE(ID_AA64MMFR3_EL1, (ID_AA64MMFR3_EL1_TCRX |
ID_AA64MMFR3_EL1_S1PIE |
ID_AA64MMFR3_EL1_S1POE)),
ID_SANITISED(ID_AA64MMFR4_EL1),
ID_WRITABLE(ID_AA64MMFR4_EL1, ID_AA64MMFR4_EL1_NV_frac),
ID_UNALLOCATED(7,5),
ID_UNALLOCATED(7,6),
ID_UNALLOCATED(7,7),