From: Sven Schnelle <svens@stackframe.org>
To: Richard Henderson <richard.henderson@linaro.org>
Cc: qemu-devel@nongnu.org, Helge Deller <deller@gmx.de>,
Sven Schnelle <svens@stackframe.org>
Subject: [PATCH 4/7] target/hppa: exit tb on flush cache instructions
Date: Sun, 17 Mar 2024 23:14:28 +0100 [thread overview]
Message-ID: <20240317221431.251515-5-svens@stackframe.org> (raw)
In-Reply-To: <20240317221431.251515-1-svens@stackframe.org>
When the guest modifies the tb it is currently executing from,
it executes a fic instruction. Exit the tb on such instruction,
otherwise we might execute stale code.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
---
target/hppa/translate.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/target/hppa/translate.c b/target/hppa/translate.c
index 8ba31567e8..58d7ec1ade 100644
--- a/target/hppa/translate.c
+++ b/target/hppa/translate.c
@@ -1940,6 +1940,7 @@ static void do_page_zero(DisasContext *ctx)
static bool trans_nop(DisasContext *ctx, arg_nop *a)
{
cond_free(&ctx->null_cond);
+ ctx->base.is_jmp = DISAS_IAQ_N_STALE;
return true;
}
@@ -2290,6 +2291,7 @@ static bool trans_nop_addrx(DisasContext *ctx, arg_ldst *a)
save_gpr(ctx, a->b, dest);
}
cond_free(&ctx->null_cond);
+ ctx->base.is_jmp = DISAS_IAQ_N_STALE;
return true;
}
--
2.43.2
next prev parent reply other threads:[~2024-03-17 22:16 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-17 22:14 [PATCH 0/7] few fixes for hppa target Sven Schnelle
2024-03-17 22:14 ` [PATCH 1/7] target/hppa: ldcw,s uses static shift of 3 Sven Schnelle
2024-03-18 20:31 ` Richard Henderson
2024-03-17 22:14 ` [PATCH 2/7] target/hppa: fix shrp for wide mode Sven Schnelle
2024-03-18 20:28 ` Helge Deller
2024-03-18 20:35 ` Richard Henderson
2024-03-17 22:14 ` [PATCH 3/7] target/hppa: fix access_id check Sven Schnelle
2024-03-18 20:37 ` Helge Deller
2024-03-18 21:12 ` Richard Henderson
2024-03-19 7:10 ` Sven Schnelle
2024-03-17 22:14 ` Sven Schnelle [this message]
2024-03-18 20:42 ` [PATCH 4/7] target/hppa: exit tb on flush cache instructions Helge Deller
2024-03-18 21:16 ` Richard Henderson
2024-03-17 22:14 ` [PATCH 5/7] target/hppa: copy new_spc to iasq_f on be,n instruction Sven Schnelle
2024-03-18 21:27 ` Richard Henderson
2024-03-19 7:08 ` Sven Schnelle
2024-03-17 22:14 ` [PATCH 6/7] target/hppa: mask privilege bits in mfia Sven Schnelle
2024-03-18 20:45 ` Helge Deller
2024-03-18 21:32 ` Richard Henderson
2024-03-17 22:14 ` [PATCH 7/7] target/hppa: fix do_stdby_e() Sven Schnelle
2024-03-18 21:38 ` Richard Henderson
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