From: Yu-Chien Peter Lin <peter.lin@sifive.com>
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 <peter.lin@sifive.com>
Subject: [PATCH v4 8/9] lib: sbi: display World ID configuration at boot
Date: Fri, 30 Oct 2026 18:45:17 +0800 [thread overview]
Message-ID: <20261030104518.3297875-9-peter.lin@sifive.com> (raw)
In-Reply-To: <20261030104518.3297875-1-peter.lin@sifive.com>
Print per-domain Wid/Widdeleg and boot HART's M-mode
World ID (mwid/pmwid fallback).
Signed-off-by: Yu-Chien Peter Lin <peter.lin@sifive.com>
Reviewed-by: Pawandeep Oza <pawandeep.oza@oss.qualcomm.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
---
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 <sbi/riscv_asm.h>
#include <sbi/sbi_console.h>
#include <sbi/sbi_domain.h>
+#include <sbi/sbi_hart.h>
#include <sbi/sbi_hartmask.h>
#include <sbi/sbi_heap.h>
#include <sbi/sbi_hsm.h>
@@ -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
next prev parent reply other threads:[~2026-10-30 10:45 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-30 10:45 [PATCH v4 0/9] Add RISC-V Worlds ISA support to OpenSBI Yu-Chien Peter Lin
2026-10-30 10:45 ` [PATCH v4 1/9] lib: sbi_hart: add RISC-V Worlds ISA extensions Yu-Chien Peter Lin
2026-10-31 12:48 ` Anup Patel
2026-10-30 10:45 ` [PATCH v4 2/9] lib: utils: fdt_helper: parse RISC-V Worlds per-hart WID properties Yu-Chien Peter Lin
2026-10-31 12:48 ` Anup Patel
2026-10-30 10:45 ` [PATCH v4 3/9] lib: fdt_domain: parse domain " Yu-Chien Peter Lin
2026-10-31 12:49 ` Anup Patel
2026-10-30 10:45 ` [PATCH v4 4/9] lib: sbi_hart: lock mwid CSR for RoT immutability Yu-Chien Peter Lin
2026-10-30 10:45 ` [PATCH v4 5/9] lib: sbi_domain_context: propagate error from sbi_hart_protection_reconfigure Yu-Chien Peter Lin
2026-10-30 10:45 ` [PATCH v4 6/9] lib: sbi_hart_worlds: Implement WID hart protection backend Yu-Chien Peter Lin
2026-11-10 3:36 ` Yu-Chien Peter Lin
2026-10-30 10:45 ` [PATCH v4 7/9] include: sbi_types: add PRIx64 format macro Yu-Chien Peter Lin
2026-10-30 10:45 ` Yu-Chien Peter Lin [this message]
2026-10-30 10:45 ` [PATCH v4 9/9] docs: document WID DT properties Yu-Chien Peter Lin
2026-10-31 12:49 ` Anup Patel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20261030104518.3297875-9-peter.lin@sifive.com \
--to=peter.lin@sifive.com \
--cc=anup@brainfault.org \
--cc=greentime.hu@sifive.com \
--cc=opensbi@lists.infradead.org \
--cc=pawandeep.oza@oss.qualcomm.com \
--cc=raymond.mao@riscstar.com \
--cc=rkrcmar@qti.qualcomm.com \
--cc=robin.randhawa@sifive.com \
--cc=samuel.holland@sifive.com \
--cc=zong.li@sifive.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.