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KVM: arm64: nv: Honor MDCR_EL2.{TPM, TPMCR} in Host EL0

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TPM and TPMCR trap bits also affect Host EL0. How fun.

Mark these two trap bits as such and take advantage of the new
infrastructure for dealing w/ EL0 traps.

Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20241025182354.3364124-10-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
This commit is contained in:
Oliver Upton 2024-10-25 18:23:44 +00:00
parent d97e66fbcb
commit 4ee5d5ff4b
1 changed files with 4 additions and 2 deletions
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6
arch/arm64/kvm/emulate-nested.c
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@ -304,13 +304,15 @@ static const struct trap_bits coarse_trap_bits[] = {
.index = MDCR_EL2,
.value = MDCR_EL2_TPMCR,
.mask = MDCR_EL2_TPMCR,
.behaviour = BEHAVE_FORWARD_RW,
.behaviour = BEHAVE_FORWARD_RW |
BEHAVE_FORWARD_IN_HOST_EL0,
},
[CGT_MDCR_TPM] = {
.index = MDCR_EL2,
.value = MDCR_EL2_TPM,
.mask = MDCR_EL2_TPM,
.behaviour = BEHAVE_FORWARD_RW,
.behaviour = BEHAVE_FORWARD_RW |
BEHAVE_FORWARD_IN_HOST_EL0,
},
[CGT_MDCR_TDE] = {
.index = MDCR_EL2,