From: Max Filippov <jcmvbkbc@gmail.com>
To: qemu-devel@nongnu.org
Cc: Max Filippov <jcmvbkbc@gmail.com>
Subject: [Qemu-devel] [PATCH 2.2 2/2] target-xtensa: add entry overflow test
Date: Fri, 7 Nov 2014 23:40:48 +0300 [thread overview]
Message-ID: <1415392848-19134-3-git-send-email-jcmvbkbc@gmail.com> (raw)
In-Reply-To: <1415392848-19134-1-git-send-email-jcmvbkbc@gmail.com>
Check that entry instruction raises window overflow exception when
PS.CALLINC points to live registers.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
tests/tcg/xtensa/test_windowed.S | 51 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 51 insertions(+)
diff --git a/tests/tcg/xtensa/test_windowed.S b/tests/tcg/xtensa/test_windowed.S
index 3de6d37..d851e8f 100644
--- a/tests/tcg/xtensa/test_windowed.S
+++ b/tests/tcg/xtensa/test_windowed.S
@@ -299,4 +299,55 @@ test entry
entry_test 12
test_end
+.macro entry_overflow_test window, free, next_window
+ set_vector window_overflow_4, 0
+ set_vector window_overflow_8, 0
+ set_vector window_overflow_12, 0
+ set_vector window_overflow_\next_window, 10f
+
+ movi a2, \window
+ movi a2, \free
+ movi a2, \next_window
+ reset_window %(1 | ((1 | (1 << ((\next_window) / 4))) << ((\free) / 4)))
+ reset_ps
+ movi a2, 0x4000f | ((\window) << 14)
+ wsr a2, ps
+ isync
+ movi a3, 0x12345678
+ j 1f
+ .align 4
+1:
+ entry a3, 0x5678
+ test_fail
+ .align 4
+10:
+ rsr a2, epc1
+ movi a3, 1b
+ assert eq, a2, a3
+ movi a2, 2f
+ wsr a2, epc1
+
+ rsr a2, windowbase
+ movi a3, (\free) / 4
+ assert eq, a2, a3
+ rfwo
+2:
+.endm
+
+.macro all_entry_overflow_tests
+ .irp window, 4, 8, 12
+ .irp next_window, 4, 8, 12
+ .irp free, 4, 8, 12
+ .if \free <= \window
+ entry_overflow_test \window, \free, \next_window
+ .endif
+ .endr
+ .endr
+ .endr
+.endm
+
+test entry_overflow
+ all_entry_overflow_tests
+test_end
+
test_suite_end
--
1.8.1.4
prev parent reply other threads:[~2014-11-07 20:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-07 20:40 [Qemu-devel] [PATCH 2.2 0/2] target-xtensa: fix missing window check in entry Max Filippov
2014-11-07 20:40 ` [Qemu-devel] [PATCH 2.2 1/2] target-xtensa: add missing window check for entry Max Filippov
2014-11-07 20:40 ` Max Filippov [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1415392848-19134-3-git-send-email-jcmvbkbc@gmail.com \
--to=jcmvbkbc@gmail.com \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).