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KVM: arm64: Fix writeable mask for ID_AA64PFR2_EL1

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The writeable mask for fields in ID_AA64PFR2_EL1 has been accidentally
inverted, which isn't a very good idea.

Restore the expected polarity.

Reviewed-by: Sascha Bischoff <sascha.bischoff@arm.com>
Fixes: a258a383b9 ("KVM: arm64: gic-v5: Sanitize ID_AA64PFR2_EL1.GCIE")
Link: https://sashiko.dev/#/patchset/20260319154937.3619520-1-sascha.bischoff%40arm.com
Link: https://patch.msgid.link/20260401103611.357092-5-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Marc Zyngier 2026-04-01 11:35:59 +01:00
parent 77acae60be
commit 76efe94b1c
1 changed files with 4 additions and 4 deletions
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8
arch/arm64/kvm/sys_regs.c
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@ -3304,10 +3304,10 @@ static const struct sys_reg_desc sys_reg_descs[] = {
ID_AA64PFR1_EL1_MPAM_frac |
ID_AA64PFR1_EL1_MTE)),
ID_FILTERED(ID_AA64PFR2_EL1, id_aa64pfr2_el1,
~(ID_AA64PFR2_EL1_FPMR |
ID_AA64PFR2_EL1_MTEFAR |
ID_AA64PFR2_EL1_MTESTOREONLY |
ID_AA64PFR2_EL1_GCIE)),
(ID_AA64PFR2_EL1_FPMR |
ID_AA64PFR2_EL1_MTEFAR |
ID_AA64PFR2_EL1_MTESTOREONLY |
ID_AA64PFR2_EL1_GCIE)),
ID_UNALLOCATED(4,3),
ID_WRITABLE(ID_AA64ZFR0_EL1, ~ID_AA64ZFR0_EL1_RES0),
ID_HIDDEN(ID_AA64SMFR0_EL1),