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| author | David Brazdil <dbrazdil@google.com> | 2020-12-02 21:41:07 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-12-04 13:08:33 +0300 |
| commit | d3e1086c64528ee0b955326b4c0e947cde3b6923 (patch) | |
| tree | fb516f86a8d54ccb3847673e1e0d3319e63f9661 /arch/arm64/kernel/image-vars.h | |
| parent | 63fec24351e827021137a15b307bd1e64772b7fe (diff) | |
| download | linux-d3e1086c64528ee0b955326b4c0e947cde3b6923.tar.xz | |
KVM: arm64: Init MAIR/TCR_EL2 from params struct
MAIR_EL2 and TCR_EL2 are currently initialized from their _EL1 values.
This will not work once KVM starts intercepting PSCI ON/SUSPEND SMCs
and initializing EL2 state before EL1 state.
Obtain the EL1 values during KVM init and store them in the init params
struct. The struct will stay in memory and can be used when booting new
cores.
Take the opportunity to move copying the T0SZ value from idmap_t0sz in
KVM init rather than in .hyp.idmap.text. This avoids the need for the
idmap_t0sz symbol alias.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201202184122.26046-12-dbrazdil@google.com
Diffstat (limited to 'arch/arm64/kernel/image-vars.h')
| -rw-r--r-- | arch/arm64/kernel/image-vars.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h index 4b32588918d9..08e69faedf6c 100644 --- a/arch/arm64/kernel/image-vars.h +++ b/arch/arm64/kernel/image-vars.h @@ -77,9 +77,6 @@ KVM_NVHE_ALIAS(panic); /* Vectors installed by hyp-init on reset HVC. */ KVM_NVHE_ALIAS(__hyp_stub_vectors); -/* IDMAP TCR_EL1.T0SZ as computed by the EL1 init code */ -KVM_NVHE_ALIAS(idmap_t0sz); - /* Kernel symbol used by icache_is_vpipt(). */ KVM_NVHE_ALIAS(__icache_flags); |