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KVM: arm64: Plumb HCRX_EL2.SRMASKEn in HCRX_EL2 sanitisation

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HCRX_EL2.SRMASKEn is a new bit enabling FEAT_SRMASK for a guest.
We don't plan to support it any time soon, but it doesn't hurt to
actively document it, specially as we are going to add more bits
we actually care about.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://patch.msgid.link/20260730071022.296811-6-maz@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>
This commit is contained in:
Marc Zyngier 2026-07-30 08:09:58 +01:00 committed by Oliver Upton
parent 34a7514b87
commit fed0a1e87c
2 changed files with 4 additions and 1 deletions
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1
arch/arm64/kvm/config.c
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@ -904,6 +904,7 @@ static const DECLARE_FEAT_MAP_FGT(hdfgwtr2_desc, hdfgwtr2_masks,
static const struct reg_bits_to_feat_map hcrx_feat_map[] = {
NEEDS_FEAT(HCRX_EL2_SRMASKEn, FEAT_SRMASK),
NEEDS_FEAT(HCRX_EL2_PACMEn, feat_pauth_lr),
NEEDS_FEAT(HCRX_EL2_EnFPM, FEAT_FPMR),
NEEDS_FEAT(HCRX_EL2_GCSEn, FEAT_GCS),

4
arch/arm64/tools/sysreg
View File

@ -4545,7 +4545,9 @@ Fields ZCR_ELx
EndSysreg
Sysreg HCRX_EL2 3 4 1 2 2
Res0 63:25
Res0 63:27
Field 26 SRMASKEn
Res0 25
Field 24 PACMEn
Field 23 EnFPM
Field 22 GCSEn