Everything is in place, add the last missing bits:
- Handle fault checking according to the actual PTW event and not the
the translation stage.
- Consolidate parsing of STE cfg and setting translation stage.
Advertise nesting if stage requested is "nested".
Signed-off-by: Mostafa Saleh <smost...@google.com>
---
hw/arm/smmuv3.c | 50 +++++++++++++++++++++++++++++++++----------------
1 file changed, 34 insertions(+), 16 deletions(-)
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index 85b3ac6a9c..da47411410 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -34,9 +34,10 @@
#include "smmuv3-internal.h"
#include "smmu-internal.h"
-#define PTW_RECORD_FAULT(cfg) (((cfg)->stage == SMMU_STAGE_1) ? \
- (cfg)->record_faults : \
- (cfg)->s2cfg.record_faults)
+#define PTW_RECORD_FAULT(ptw_info, cfg) (((ptw_info).stage == SMMU_STAGE_1 && \
+ (cfg)->record_faults) || \
+ ((ptw_info).stage == SMMU_STAGE_2 && \
+ (cfg)->s2cfg.record_faults))
/**
* smmuv3_trigger_irq - pulse @irq if enabled and update
@@ -260,6 +261,9 @@ static void smmuv3_init_regs(SMMUv3State *s)
/* Based on sys property, the stages supported in smmu will be
advertised.*/
if (s->stage && !strcmp("2", s->stage)) {
s->idr[0] = FIELD_DP32(s->idr[0], IDR0, S2P, 1);
+ } else if (s->stage && !strcmp("nested", s->stage)) {
+ s->idr[0] = FIELD_DP32(s->idr[0], IDR0, S1P, 1);
+ s->idr[0] = FIELD_DP32(s->idr[0], IDR0, S2P, 1);
} else {
s->idr[0] = FIELD_DP32(s->idr[0], IDR0, S1P, 1);
}
@@ -425,8 +429,6 @@ static bool s2_pgtable_config_valid(uint8_t sl0, uint8_t
t0sz, uint8_t gran)
static int decode_ste_s2_cfg(SMMUTransCfg *cfg, STE *ste)
{
- cfg->stage = SMMU_STAGE_2;
-
if (STE_S2AA64(ste) == 0x0) {
qemu_log_mask(LOG_UNIMP,
"SMMUv3 AArch32 tables not supported\n");
@@ -509,6 +511,27 @@ bad_ste:
return -EINVAL;
}
+static void decode_ste_config(SMMUTransCfg *cfg, uint32_t config)
+{
+
+ if (STE_CFG_ABORT(config)) {
+ cfg->aborted = true;
+ return;
+ }
+ if (STE_CFG_BYPASS(config)) {
+ cfg->bypassed = true;
+ return;
+ }
+
+ if (STE_CFG_S1_ENABLED(config)) {
+ cfg->stage = SMMU_STAGE_1;
+ }
+
+ if (STE_CFG_S2_ENABLED(config)) {
+ cfg->stage |= SMMU_STAGE_2;
+ }
+}
+
/* Returns < 0 in case of invalid STE, 0 otherwise */
static int decode_ste(SMMUv3State *s, SMMUTransCfg *cfg,
STE *ste, SMMUEventInfo *event)
@@ -525,13 +548,9 @@ static int decode_ste(SMMUv3State *s, SMMUTransCfg *cfg,
config = STE_CONFIG(ste);
- if (STE_CFG_ABORT(config)) {
- cfg->aborted = true;
- return 0;
- }
+ decode_ste_config(cfg, config);
- if (STE_CFG_BYPASS(config)) {
- cfg->bypassed = true;
+ if (cfg->aborted || cfg->bypassed) {
return 0;
}
@@ -704,7 +723,6 @@ static int decode_cd(SMMUv3State *s, SMMUTransCfg *cfg,
/* we support only those at the moment */
cfg->aa64 = true;
- cfg->stage = SMMU_STAGE_1;
cfg->oas = oas2bits(CD_IPS(cd));
cfg->oas = MIN(oas2bits(SMMU_IDR5_OAS), cfg->oas);
@@ -887,28 +905,28 @@ static SMMUTranslationStatus
smmuv3_do_translate(SMMUv3State *s, hwaddr addr,
event->u.f_walk_eabt.addr2 = ptw_info.addr;
break;
case SMMU_PTW_ERR_TRANSLATION:
- if (PTW_RECORD_FAULT(cfg)) {
+ if (PTW_RECORD_FAULT(ptw_info, cfg)) {
event->type = SMMU_EVT_F_TRANSLATION;
event->u.f_translation.addr = addr;
event->u.f_translation.rnw = flag & 0x1;
}
break;
case SMMU_PTW_ERR_ADDR_SIZE:
- if (PTW_RECORD_FAULT(cfg)) {
+ if (PTW_RECORD_FAULT(ptw_info, cfg)) {
event->type = SMMU_EVT_F_ADDR_SIZE;
event->u.f_addr_size.addr = addr;
event->u.f_addr_size.rnw = flag & 0x1;
}
break;
case SMMU_PTW_ERR_ACCESS:
- if (PTW_RECORD_FAULT(cfg)) {
+ if (PTW_RECORD_FAULT(ptw_info, cfg)) {
event->type = SMMU_EVT_F_ACCESS;
event->u.f_access.addr = addr;
event->u.f_access.rnw = flag & 0x1;
}
break;
case SMMU_PTW_ERR_PERMISSION:
- if (PTW_RECORD_FAULT(cfg)) {
+ if (PTW_RECORD_FAULT(ptw_info, cfg)) {
event->type = SMMU_EVT_F_PERMISSION;
event->u.f_permission.addr = addr;
event->u.f_permission.rnw = flag & 0x1;
--
2.44.0.478.gd926399ef9-goog
