Message ID | 20170502120350.3368.92338.stgit@PASHA-ISP |
---|---|
State | New |
Headers | show |
On 05/02/2017 09:03 AM, Pavel Dovgalyuk wrote: > From: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> > > This patch fixes setting DExcCode field of CP0 Debug register > when SDBBP instruction is executed. According to EJTAG specification, > this field must be set to the value 9 (Bp). > > Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> > --- > target/mips/helper.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/target/mips/helper.c b/target/mips/helper.c > index e359ca3b44..166f0d1243 100644 > --- a/target/mips/helper.c > +++ b/target/mips/helper.c > @@ -627,6 +627,8 @@ void mips_cpu_do_interrupt(CPUState *cs) > goto set_DEPC; > case EXCP_DBp: > env->CP0_Debug |= 1 << CP0DB_DBp; > + /* Setup DExcCode - SDBBP instruction */ > + env->CP0_Debug = (env->CP0_Debug & ~(0x1fULL << CP0DB_DEC)) | 9 << CP0DB_DEC; > goto set_DEPC; > case EXCP_DDBS: > env->CP0_Debug |= 1 << CP0DB_DDBS; > >
On 2017-05-02 15:03, Pavel Dovgalyuk wrote: > From: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> > > This patch fixes setting DExcCode field of CP0 Debug register > when SDBBP instruction is executed. According to EJTAG specification, > this field must be set to the value 9 (Bp). > > Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> > --- > target/mips/helper.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/target/mips/helper.c b/target/mips/helper.c > index e359ca3b44..166f0d1243 100644 > --- a/target/mips/helper.c > +++ b/target/mips/helper.c > @@ -627,6 +627,8 @@ void mips_cpu_do_interrupt(CPUState *cs) > goto set_DEPC; > case EXCP_DBp: > env->CP0_Debug |= 1 << CP0DB_DBp; > + /* Setup DExcCode - SDBBP instruction */ > + env->CP0_Debug = (env->CP0_Debug & ~(0x1fULL << CP0DB_DEC)) | 9 << CP0DB_DEC; > goto set_DEPC; > case EXCP_DDBS: > env->CP0_Debug |= 1 << CP0DB_DDBS; > Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
diff --git a/target/mips/helper.c b/target/mips/helper.c index e359ca3b44..166f0d1243 100644 --- a/target/mips/helper.c +++ b/target/mips/helper.c @@ -627,6 +627,8 @@ void mips_cpu_do_interrupt(CPUState *cs) goto set_DEPC; case EXCP_DBp: env->CP0_Debug |= 1 << CP0DB_DBp; + /* Setup DExcCode - SDBBP instruction */ + env->CP0_Debug = (env->CP0_Debug & ~(0x1fULL << CP0DB_DEC)) | 9 << CP0DB_DEC; goto set_DEPC; case EXCP_DDBS: env->CP0_Debug |= 1 << CP0DB_DDBS;