[PULL 12/30] target/ppc: fix PMU Group A register read/write exceptions

[Daniel Henrique Barboza]

From: Matheus Ferst <matheus.ferst@eldorado.org.br>

A call to "gen_(hv)priv_exception" should use POWERPC_EXCP_PRIV_* as the
'error' argument instead of POWERPC_EXCP_INVAL_*, and POWERPC_EXCP_FU is
an exception type, not an exception error code. To correctly set
FSCR[IC], we should raise Facility Unavailable with this exception type
and IC value as the error code.

Fixes: 565cb1096733 ("target/ppc: add user read/write functions for MMCR0")
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220627141104.669152-6-matheus.ferst@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
 target/ppc/power8-pmu-regs.c.inc | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/target/ppc/power8-pmu-regs.c.inc b/target/ppc/power8-pmu-regs.c.inc
index 2bab6cece7..c3cc919ee4 100644
--- a/target/ppc/power8-pmu-regs.c.inc
+++ b/target/ppc/power8-pmu-regs.c.inc
@@ -22,7 +22,7 @@
 static bool spr_groupA_read_allowed(DisasContext *ctx)
 {
     if (!ctx->mmcr0_pmcc0 && ctx->mmcr0_pmcc1) {
-        gen_hvpriv_exception(ctx, POWERPC_EXCP_FU);
+        gen_exception_err(ctx, POWERPC_EXCP_FU, FSCR_IC_PMU);
         return false;
     }
 
@@ -46,10 +46,10 @@ static bool spr_groupA_write_allowed(DisasContext *ctx)
 
     if (ctx->mmcr0_pmcc1) {
         /* PMCC = 0b01 */
-        gen_hvpriv_exception(ctx, POWERPC_EXCP_FU);
+        gen_exception_err(ctx, POWERPC_EXCP_FU, FSCR_IC_PMU);
     } else {
         /* PMCC = 0b00 */
-        gen_hvpriv_exception(ctx, POWERPC_EXCP_INVAL_SPR);
+        gen_hvpriv_exception(ctx, POWERPC_EXCP_PRIV_REG);
     }
 
     return false;
@@ -214,7 +214,7 @@ void spr_read_PMC56_ureg(DisasContext *ctx, int gprn, int 
sprn)
      * Interrupt.
      */
     if (ctx->mmcr0_pmcc0 && ctx->mmcr0_pmcc1) {
-        gen_hvpriv_exception(ctx, POWERPC_EXCP_FU);
+        gen_exception_err(ctx, POWERPC_EXCP_FU, FSCR_IC_PMU);
         return;
     }
 
@@ -249,7 +249,7 @@ void spr_write_PMC56_ureg(DisasContext *ctx, int sprn, int 
gprn)
      * Interrupt.
      */
     if (ctx->mmcr0_pmcc0 && ctx->mmcr0_pmcc1) {
-        gen_hvpriv_exception(ctx, POWERPC_EXCP_FU);
+        gen_exception_err(ctx, POWERPC_EXCP_FU, FSCR_IC_PMU);
         return;
     }
 
-- 
2.36.1