diff options
| author | Fabian Vogt <fvogt@suse.de> | 2023-09-15 15:36:59 +0100 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2023-10-03 02:00:54 +0300 |
| commit | d0cd94e2b6eff0dbe3746da6b2c4c4643eecb101 (patch) | |
| tree | dd29a119595f0a451ea0d23855742c162ad2d021 /scripts/simpletrace.py | |
| parent | cb6ed2f7f73fbbfa321fdb47d058073bb02f1b41 (diff) | |
hw/arm/boot: Set SCR_EL3.FGTEn when booting kernel
Just like d7ef5e16a17c sets SCR_EL3.HXEn for FEAT_HCX, this commit
handles SCR_EL3.FGTEn for FEAT_FGT:
When we direct boot a kernel on a CPU which emulates EL3, we need to
set up the EL3 system registers as the Linux kernel documentation
specifies:
https://www.kernel.org/doc/Documentation/arm64/booting.rst
> For CPUs with the Fine Grained Traps (FEAT_FGT) extension present:
> - If EL3 is present and the kernel is entered at EL2:
> - SCR_EL3.FGTEn (bit 27) must be initialised to 0b1.
Cc: qemu-stable@nongnu.org
Signed-off-by: Fabian Vogt <fvogt@suse.de>
Message-id: 4831384.GXAFRqVoOG@linux-e202.suse.de
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit 32b214384e1e1472ddfa875196c57f6620172301)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'scripts/simpletrace.py')
0 files changed, 0 insertions, 0 deletions