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| author | Joey Gouly <joey.gouly@arm.com> | 2023-10-12 13:34:58 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2023-10-12 16:38:50 +0100 |
| commit | 0fd76865006dfdc3cdc6dade538ca2257a847364 (patch) | |
| tree | d8fe85d750e6a5530f198e86d39463a80791f627 /arch/arm64/kvm/emulate-nested.c | |
| parent | 60197a4631b907b30343e25af702257d92f359cf (diff) | |
| download | linux-0fd76865006dfdc3cdc6dade538ca2257a847364.tar.gz linux-0fd76865006dfdc3cdc6dade538ca2257a847364.tar.bz2 linux-0fd76865006dfdc3cdc6dade538ca2257a847364.zip | |
KVM: arm64: Add nPIR{E0}_EL1 to HFG traps
nPIR_EL1 and nPIREO_EL1 are part of the 'reverse polarity' set of bits, set
them so that we disable the traps for a guest. Unfortunately, these bits
are not yet described in the ARM ARM, but only live in the XML description.
Also add them to the NV FGT forwarding infrastructure.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Fixes: e930694e6145 ("KVM: arm64: Restructure FGT register switching")
Cc: Oliver Upton <oliver.upton@linux.dev>
[maz: add entries to the NV FGT array, commit message update]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231012123459.2820835-2-joey.gouly@arm.com
Diffstat (limited to 'arch/arm64/kvm/emulate-nested.c')
| -rw-r--r-- | arch/arm64/kvm/emulate-nested.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/kvm/emulate-nested.c b/arch/arm64/kvm/emulate-nested.c index 9ced1bf0c2b7..ee902ff2a50f 100644 --- a/arch/arm64/kvm/emulate-nested.c +++ b/arch/arm64/kvm/emulate-nested.c @@ -977,6 +977,8 @@ enum fg_filter_id { static const struct encoding_to_trap_config encoding_to_fgt[] __initconst = { /* HFGRTR_EL2, HFGWTR_EL2 */ + SR_FGT(SYS_PIR_EL1, HFGxTR, nPIR_EL1, 0), + SR_FGT(SYS_PIRE0_EL1, HFGxTR, nPIRE0_EL1, 0), SR_FGT(SYS_TPIDR2_EL0, HFGxTR, nTPIDR2_EL0, 0), SR_FGT(SYS_SMPRI_EL1, HFGxTR, nSMPRI_EL1, 0), SR_FGT(SYS_ACCDATA_EL1, HFGxTR, nACCDATA_EL1, 0), |