On 2026/7/10 下午5:00, SignKirigami wrote:
Add LVZ CSR number and bit-field definitions for guest status,
configuration, interrupt, timer and guest TLB registers, preparing
the architectural constants needed by later LVZ CPU state, CSR and
TCG implementation patches.
Signed-off-by: SignKirigami <[email protected]>
Signed-off-by: Hengyu Yu <[email protected]>
---
target/loongarch/cpu-csr.h | 42 ++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/target/loongarch/cpu-csr.h b/target/loongarch/cpu-csr.h
index d860417af2..4b0bb4d2e5 100644
--- a/target/loongarch/cpu-csr.h
+++ b/target/loongarch/cpu-csr.h
@@ -180,11 +180,13 @@ FIELD(CSR_TLBREHI_64, VPPN, 13, 35)
#define LOONGARCH_CSR_TLBRPRMD 0x8f /* TLB refill mode info */
FIELD(CSR_TLBRPRMD, PPLV, 0, 2)
FIELD(CSR_TLBRPRMD, PIE, 2, 1)
+FIELD(CSR_TLBRPRMD, PGM, 3, 1)
FIELD(CSR_TLBRPRMD, PWE, 4, 1)
It seems that the bit PGM is not used in the patch set. If it is not
used now, it had better be removed, and add it when necessary.
/* Machine Error CSRs */
#define LOONGARCH_CSR_MERRCTL 0x90 /* ERRCTL */
FIELD(CSR_MERRCTL, ISMERR, 0, 1)
+FIELD(CSR_MERRCTL, PGM, 5, 1)
Ditto, it seems that the bit PGM is not used in the patch set.
#define LOONGARCH_CSR_MERRINFO1 0x91
#define LOONGARCH_CSR_MERRINFO2 0x92
#define LOONGARCH_CSR_MERRENTRY 0x93 /* MError exception base */
@@ -224,4 +226,44 @@ FIELD(CSR_DBG, ECODE, 16, 6)
#define LOONGARCH_CSR_DERA 0x501 /* Debug era */
#define LOONGARCH_CSR_DSAVE 0x502 /* Debug save */
+/* LVZ (LoongArch Virtualization) CSRs */
+#define LOONGARCH_CSR_GSTAT 0x50 /* Guest status */
+FIELD(CSR_GSTAT, VM, 0, 1)
+FIELD(CSR_GSTAT, PVM, 1, 1)
+FIELD(CSR_GSTAT, GIDBIT, 4, 6)
+FIELD(CSR_GSTAT, GID, 16, 8)
+
+#define LOONGARCH_CSR_GCFG 0x51 /* Guest config */
+FIELD(CSR_GCFG, MATP, 0, 4)
+FIELD(CSR_GCFG, MATC, 4, 2)
+FIELD(CSR_GCFG, TOPIP, 6, 1)
+FIELD(CSR_GCFG, TOPI, 7, 1)
+FIELD(CSR_GCFG, TOTIP, 8, 1)
+FIELD(CSR_GCFG, TOTI, 9, 1)
+FIELD(CSR_GCFG, TOEP, 10, 1)
+FIELD(CSR_GCFG, TOE, 11, 1)
+FIELD(CSR_GCFG, TOPP, 12, 1)
+FIELD(CSR_GCFG, TOP, 13, 1)
+FIELD(CSR_GCFG, TOHUP, 14, 1)
+FIELD(CSR_GCFG, TOHU, 15, 1)
+FIELD(CSR_GCFG, TOCIP, 16, 4)
+FIELD(CSR_GCFG, TOCI, 20, 2)
+FIELD(CSR_GCFG, GPMP, 23, 1)
+FIELD(CSR_GCFG, GPMNUM, 24, 3)
+
+#define LOONGARCH_CSR_GINTC 0x52 /* Guest interrupt config */
+FIELD(CSR_GINTC, HWIS, 0, 8)
+FIELD(CSR_GINTC, HWIP, 8, 8)
+FIELD(CSR_GINTC, HWIC, 16, 8)
+
+#define LOONGARCH_CSR_GCNTC 0x53 /* Guest counter compensation */
+
+#define LOONGARCH_CSR_GTLBC 0x15 /* Guest TLB control */
+FIELD(CSR_GTLBC, GMTLBSZ, 0, 6)
+FIELD(CSR_GTLBC, USETGID, 12, 1)
+FIELD(CSR_GTLBC, TOTI, 13, 1)
+FIELD(CSR_GTLBC, TGID, 16, 8)
+
+#define LOONGARCH_CSR_TRGP 0x16 /* Trapped guest physical address */
CSR register CSR_TRGP is not used in the patch set.
Regards
Bibo Mao
+
#endif /* LOONGARCH_CPU_CSR_H */
