From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: deller@gmx.de, svens@stackframe.org
Subject: [PATCH for-9.0 0/2] target/hppa: two more simple fixes
Date: Thu, 21 Mar 2024 09:28:11 -1000 [thread overview]
Message-ID: <20240321192813.371526-1-richard.henderson@linaro.org> (raw)
Using the correct space for BE,L linkage might make the difference
for a cpu stress test. I believe triggering this would require
something like
f=(seg,ofs), b=(seg,ofs+4)
be 0(sr1,r1) f=(seg,ofs+4), b=(sr1,r1)
be,l,n 0(sr2,r2),sr0,r31 f=(sr1,r1), b=(sr2,r2)
and then validating the contents of sr0 on return.
Linux only places B,GATE in the zero page, so amusingly there were
never any high bits to clobber. But I can imagine HP-UX making
more use of gateway pages, and certainly a cpu stress test would.
r~
Richard Henderson (2):
target/hppa: Fix BE,L set of sr0
target/hppa: Fix B,GATE for wide mode
target/hppa/translate.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--
2.34.1
next reply other threads:[~2024-03-21 19:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-21 19:28 Richard Henderson [this message]
2024-03-21 19:28 ` [PATCH 1/2] target/hppa: Fix BE,L set of sr0 Richard Henderson
2024-03-21 19:28 ` [PATCH 2/2] target/hppa: Fix B,GATE for wide mode Richard Henderson
2024-03-21 19:34 ` Philippe Mathieu-Daudé
2024-03-21 20:05 ` Richard Henderson
2024-03-22 6:57 ` Helge Deller
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