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Fri, 30 Oct 2026 03:45:51 -0700 (PDT) Received: from localhost ([136.226.240.163]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3ae845df666sm3619811a91.14.2026.10.30.03.45.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 30 Oct 2026 03:45:49 -0700 (PDT) From: Yu-Chien Peter Lin To: opensbi@lists.infradead.org Cc: anup@brainfault.org, pawandeep.oza@oss.qualcomm.com, rkrcmar@qti.qualcomm.com, raymond.mao@riscstar.com, robin.randhawa@sifive.com, samuel.holland@sifive.com, zong.li@sifive.com, greentime.hu@sifive.com, Yu-Chien Peter Lin Subject: [PATCH v4 8/9] lib: sbi: display World ID configuration at boot Date: Fri, 30 Oct 2026 18:45:17 +0800 Message-Id: <20261030104518.3297875-9-peter.lin@sifive.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261030104518.3297875-1-peter.lin@sifive.com> References: <20261030104518.3297875-1-peter.lin@sifive.com> X-Archived-By: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261030_034552_777850_0AE7B1B8 X-CRM114-Status: GOOD ( 10.26 ) X-Spam-Score: -2.1 (--) X-BeenThere: opensbi@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "opensbi" X-Spam-Status: No, score=-16.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Print per-domain Wid/Widdeleg and boot HART's M-mode World ID (mwid/pmwid fallback). Signed-off-by: Yu-Chien Peter Lin Reviewed-by: Pawandeep Oza Reviewed-by: Anup Patel --- lib/sbi/sbi_domain.c | 18 ++++++++++++++++++ lib/sbi/sbi_init.c | 13 +++++++++++++ 2 files changed, 31 insertions(+) diff --git a/lib/sbi/sbi_domain.c b/lib/sbi/sbi_domain.c index be9020d0..f92ebc2f 100644 --- a/lib/sbi/sbi_domain.c +++ b/lib/sbi/sbi_domain.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -613,6 +614,7 @@ void sbi_domain_dump(const struct sbi_domain *dom, const char *suffix) u32 i, j, k; unsigned long rstart, rend; const struct sbi_domain_memregion *reg; + struct sbi_scratch *scratch = sbi_scratch_thishart_ptr(); sbi_printf("Domain%d Name %s: %s\n", dom->index, suffix, dom->name); @@ -691,6 +693,22 @@ void sbi_domain_dump(const struct sbi_domain *dom, const char *suffix) break; } + if (sbi_hart_has_extension(scratch, SBI_HART_EXT_SMLWID)) { + sbi_printf("Domain%d Wid %s: %u\n", + dom->index, suffix, dom->wid); + } else { + sbi_printf("Domain%d Wid %s: unsupported\n", + dom->index, suffix); + } + + if (sbi_hart_has_extension(scratch, SBI_HART_EXT_SMWIDDELEG)) { + sbi_printf("Domain%d Widdeleg %s: 0x%" PRIx64 "\n", + dom->index, suffix, dom->widdeleg); + } else { + sbi_printf("Domain%d Widdeleg %s: unsupported\n", + dom->index, suffix); + } + sbi_printf("Domain%d SysReset %s: %s\n", dom->index, suffix, (dom->system_reset_allowed) ? "yes" : "no"); diff --git a/lib/sbi/sbi_init.c b/lib/sbi/sbi_init.c index acd2f8b6..f771f548 100644 --- a/lib/sbi/sbi_init.c +++ b/lib/sbi/sbi_init.c @@ -167,6 +167,7 @@ static void sbi_boot_print_hart(struct sbi_scratch *scratch, u32 hartid) int xlen; char str[256]; const struct sbi_domain *dom = sbi_domain_thishart_ptr(); + struct sbi_hart_features *hf = sbi_hart_features_ptr(scratch); if (scratch->options & SBI_SCRATCH_NO_BOOT_PRINTS) return; @@ -199,6 +200,18 @@ static void sbi_boot_print_hart(struct sbi_scratch *scratch, u32 hartid) sbi_printf("Boot HART Debug Triggers : %d triggers\n", sbi_dbtr_get_total_triggers()); sbi_hart_delegation_dump(scratch, "Boot HART ", " "); + if (sbi_hart_has_extension(scratch, SBI_HART_EXT_SMWID)) { + ulong mwid = csr_read(CSR_MWID); + + sbi_printf("Boot HART M-mode World ID : %lu (%s)\n", + mwid & ~MWID_LOCK, + (mwid & MWID_LOCK) ? "locked" : "unlocked"); + } else if (hf->has_pmwid) { + sbi_printf("Boot HART M-mode World ID : %u (pmwid)\n", + hf->pmwid); + } else { + sbi_printf("Boot HART M-mode World ID : unsupported\n"); + } } static unsigned long coldboot_done; -- 2.43.7 -- opensbi mailing list opensbi@lists.infradead.org http://lists.infradead.org/mailman/listinfo/opensbi