diff options
| author | Antonio Borneo <borneo.antonio@gmail.com> | 2019-06-25 16:01:38 +0200 |
|---|---|---|
| committer | Antonio Borneo <borneo.antonio@gmail.com> | 2020-03-12 10:11:19 +0000 |
| commit | b5d2b1224fed3909aa3314339611ac5ac7ab0f82 (patch) | |
| tree | 5e38e99cfe6dbdf131b4b452948b3b889b7eac23 /src/target/cortex_a.c | |
| parent | 6900c5af4ec3f6df52227169d7d897eb14a44bca (diff) | |
target/cortex_a: add hypervisor mode
Hypervisor mode is present only if the optional virtualization
extensions are available. Moreover, virtualization extensions
require that also security extensions are implemented.
Add the required infrastructure for the shadowed registers in
hypervisor mode.
Make monitor shadowed registers visible in hypervisor mode too.
Make hypervisor shadowed registers visible in hypervisor mode
only.
Check during cortex_a examine if virtualization extensions are
present and then conditionally enable the visibility of both
hypervisor and monitor modes shadowed registers.
Change-Id: I81dbb1ee8baf4c9f1a2226b77c10c8a2a7b34871
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5261
Tested-by: jenkins
Diffstat (limited to 'src/target/cortex_a.c')
| -rw-r--r-- | src/target/cortex_a.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/target/cortex_a.c b/src/target/cortex_a.c index 22cbc3d0..729a173e 100644 --- a/src/target/cortex_a.c +++ b/src/target/cortex_a.c @@ -2797,6 +2797,15 @@ static int cortex_a_examine_first(struct target *target) target->coreid); armv7a->arm.core_type = ARM_CORE_TYPE_SEC_EXT; } + if (dbg_idpfr1 & 0x0000f000) { + LOG_DEBUG("target->coreid %" PRId32 " has virtualization extensions", + target->coreid); + /* + * overwrite and simplify the checks. + * virtualization extensions require implementation of security extension + */ + armv7a->arm.core_type = ARM_CORE_TYPE_VIRT_EXT; + } /* Avoid recreating the registers cache */ if (!target_was_examined(target)) { |