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| author | Cornelia Huck <cohuck@redhat.com> | 2023-04-28 11:55:33 +0200 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2023-05-18 11:08:38 +0100 |
| commit | b320e21c48ce64853904bea6631c0158cc2ef227 (patch) | |
| tree | 7f39fb6746f308172e7fcc263c4b102ce7400690 /target/arm/cpu.h | |
| parent | 96e6d25fdd5f6cd0f9b8eef6c8ab1365509c4aa2 (diff) | |
| download | qemu-b320e21c48ce64853904bea6631c0158cc2ef227.zip qemu-b320e21c48ce64853904bea6631c0158cc2ef227.tar.gz qemu-b320e21c48ce64853904bea6631c0158cc2ef227.tar.bz2 | |
arm/kvm: add support for MTE
Extend the 'mte' property for the virt machine to cover KVM as
well. For KVM, we don't allocate tag memory, but instead enable the
capability.
If MTE has been enabled, we need to disable migration, as we do not
yet have a way to migrate the tags as well. Therefore, MTE will stay
off with KVM unless requested explicitly.
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230428095533.21747-2-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm/cpu.h')
| -rw-r--r-- | target/arm/cpu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h index d469a26..c3463e3 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -935,6 +935,9 @@ struct ArchCPU { */ uint32_t psci_conduit; + /* CPU has Memory Tag Extension */ + bool has_mte; + /* For v8M, initial value of the Secure VTOR */ uint32_t init_svtor; /* For v8M, initial value of the Non-secure VTOR */ @@ -1053,6 +1056,7 @@ struct ArchCPU { bool prop_pauth; bool prop_pauth_impdef; bool prop_lpa2; + OnOffAuto prop_mte; /* DCZ blocksize, in log_2(words), ie low 4 bits of DCZID_EL0 */ uint32_t dcz_blocksize; |