OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

target/tricore: Honour privilege changes on PSW write 

the CPU can change the privilege level by writing the corresponding bits
in PSW. If this happens all instructions after this 'mtcr' in the TB are
translated with the wrong privilege level. So we have to exit to the
cpu_loop() and start translating again with the new privilege level.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20230621142302.1648383-8-kbastian@mail.uni-paderborn.de>
This commit is contained in:
Bastian Koppelmann 2023-06-21 16:23:01 +02:00
parent 57b9c589b6
commit 19a18edd88
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
target/tricore/translate.c
View File

@ -334,7 +334,6 @@ static void gen_swapmsk(DisasContext *ctx, int reg, TCGv ea)
tcg_gen_mov_tl(cpu_gpr_d[reg], temp);
}
/* We generate loads and store to core special function register (csfr) through
the function gen_mfcr and gen_mtcr. To handle access permissions, we use 3
makros R, A and E, which allow read-only, all and endinit protected access.
@ -382,6 +381,7 @@ static inline void gen_mtcr(DisasContext *ctx, TCGv r1,
/* since we're caching PSW make this a special case */
if (offset == 0xfe04) {
gen_helper_psw_write(cpu_env, r1);
ctx->base.is_jmp = DISAS_EXIT_UPDATE;
} else {
switch (offset) {
#include "csfr.h.inc"