diff options
| author | Fuad Tabba <tabba@google.com> | 2023-12-14 13:01:49 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2023-12-18 14:25:50 +0300 |
| commit | 676f482354886caa9b0cfa9236f5d20ac78f8c6a (patch) | |
| tree | 5491d08a8d5b8be445a6fda44af7380e3812f084 /arch/arm64/kvm/sys_regs.c | |
| parent | f9d6ed0213021ea00af30efbfa33e9a06c0610f2 (diff) | |
| download | linux-676f482354886caa9b0cfa9236f5d20ac78f8c6a.tar.xz | |
KVM: arm64: Handle HAFGRTR_EL2 trapping in nested virt
Add the encodings to fine grain trapping fields for HAFGRTR_EL2
and add the associated handling code in nested virt. Based on
DDI0601 2023-09. Add the missing field definitions as well,
both to generate the correct RES0 mask and to be able to toggle
their FGT bits.
Also add the code for handling FGT trapping, reading of the
register, to nested virt.
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231214100158.2305400-10-tabba@google.com
Diffstat (limited to 'arch/arm64/kvm/sys_regs.c')
| -rw-r--r-- | arch/arm64/kvm/sys_regs.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 4735e1b37fb3..8bb297a2df38 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -2532,6 +2532,7 @@ static const struct sys_reg_desc sys_reg_descs[] = { { SYS_DESC(SYS_DACR32_EL2), trap_undef, reset_unknown, DACR32_EL2 }, EL2_REG(HDFGRTR_EL2, access_rw, reset_val, 0), EL2_REG(HDFGWTR_EL2, access_rw, reset_val, 0), + EL2_REG(HAFGRTR_EL2, access_rw, reset_val, 0), EL2_REG(SPSR_EL2, access_rw, reset_val, 0), EL2_REG(ELR_EL2, access_rw, reset_val, 0), { SYS_DESC(SYS_SP_EL1), access_sp_el1}, |