From nobody Fri Jul 10 16:03:44 2026 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4gxc802Rcwz6lLQV for ; Fri, 10 Jul 2026 16:03:44 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gxc801STHz3J7q for ; Fri, 10 Jul 2026 16:03:44 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783699424; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=UPilm1OLM3rFvxO1Itklcogse/xMLU3Y6k3t/Spl+wU=; b=wed3oFyMHLpwmfAzjhkOBrot3059IBZMEeWk+wcv2jxcG+BtcLZuK/AzG97xHdygzNyUVw SgTg95zMyT3ttae9OCveg53PMlDjh2rowo95zkpFG6RoPrb6F6W1KnYUgsYhwoJckhT4x0 ZC5q1SvChsj57H3RpsT9NpARXPecvR/wjimd2SFOzlTXMWtOdiPT7Q6XXBswsvtf5BVUoV MhsjhhLZjXYoN6WL7X3gab45sdNcn0LYYtcEFxXYYvfm91n1eoUUAphGtJ9PoxbJFghAJJ lauVPELKu/faNuJC5tVx4hQ8O/RxzJdoZhkFwrZ2VzQQUSdAWMsF8HcMwrEm4Q== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1783699424; a=rsa-sha256; cv=none; b=fF9megbYrD359NptqE0BaxJHlWjH7cmf6nlEOn22UzE7nQBJiNIs+TCqx1KGUSFMN71CoE bJwc6KsAOK0hykI9gAzYwHLOOCT5nfLvupsE+qruJXXYLnnRcECzWtXIHc4KSax11jHZz7 0nghfr32+2aQKosw9XkPEmKzfzvXi4pmpYNh1WGPu5F9x2gJXHO/R6FiszozvsoFh5D+uU ewVP03uEkNhSEnFQQV0Uu/JriI67Ub0l/6gJA11SGAzDV5QFkgs5zqjNIG4qvyshiPfHaP fu7njc9vzbIqvznGno/arA/A6QewN4dL2eMkj08Vq65JVEUWcEvdhBg7HuYOtw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783699424; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=UPilm1OLM3rFvxO1Itklcogse/xMLU3Y6k3t/Spl+wU=; b=O0BaP62ouoC9+GM1FXDn4uECvXLfQ4Gtm4DLkYiVVRR4woWoLlDSR4M2LSmLEzh6pzQyjH c7UM3ZivdSnwAQgDBjzhUn20FMfla/sOCLFLmSuYTCzEYg8MskESF03+h21Tc/Dh7sDbKR DFVcFv+FJopnq94Jf/5x/aR7uHl80bEIDhN1B42H6JAQZnv6aDDsuMSEOXHDaULs6sXSV4 Dyz20vCOeONaGb65Z786CNn8/vJym800psJBVw5XrIFqowFnvYSjzWEdbSWjImlbioDFDj i5aho7CBawpv37PFfSTzGjaGqTFT88HKwImFigw2lzcil7x/IwYLsXi4U43xjQ== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4gxc800M83z123c for ; Fri, 10 Jul 2026 16:03:44 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 37bff by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Fri, 10 Jul 2026 16:03:44 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Bojan Novk=?utf-8?Q?ovi=C4=87?= Subject: git: 10487e30c0a7 - main - riscv/pmap.c: Add a ddb command for inspecting PTEs List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: bnovkov X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 10487e30c0a70cedb2ade55e88c0dbbfc8e59f24 Auto-Submitted: auto-generated Date: Fri, 10 Jul 2026 16:03:44 +0000 Message-Id: <6a5117e0.37bff.335a1eee@gitrepo.freebsd.org> The branch main has been updated by bnovkov: URL: https://cgit.FreeBSD.org/src/commit/?id=10487e30c0a70cedb2ade55e88c0dbbfc8e59f24 commit 10487e30c0a70cedb2ade55e88c0dbbfc8e59f24 Author: Bojan Novković AuthorDate: 2026-04-14 17:02:21 +0000 Commit: Bojan Novković CommitDate: 2026-07-10 15:52:00 +0000 riscv/pmap.c: Add a ddb command for inspecting PTEs This change implements the equivalent of the amd64-specific 'show pte' ddb command used to dump the page table entries associated with a specific virtual address. Differential Revision: https://reviews.freebsd.org/D56924 Reviewed by: mhorne --- sys/riscv/riscv/pmap.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/sys/riscv/riscv/pmap.c b/sys/riscv/riscv/pmap.c index 0461400f2a7c..35194ebd7c28 100644 --- a/sys/riscv/riscv/pmap.c +++ b/sys/riscv/riscv/pmap.c @@ -112,6 +112,7 @@ * and to when physical maps must be made correct. */ +#include "opt_ddb.h" #include "opt_pmap.h" #include @@ -136,6 +137,10 @@ #include #include #include +#ifdef DDB +#include +#include +#endif #include #include @@ -5596,3 +5601,59 @@ SYSCTL_OID(_vm_pmap, OID_AUTO, kernel_maps, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE | CTLFLAG_SKIP, NULL, 0, sysctl_kmaps, "A", "Dump kernel address layout"); + +#ifdef DDB +DB_SHOW_COMMAND(pte, pmap_print_pte) +{ + pd_entry_t *l0, l0e, *l1, l1e; + pt_entry_t *l2, l2e, *l3, l3e; + vm_offset_t va; + pmap_t pmap; + + if (!have_addr) { + db_printf("show pte addr\n"); + return; + } + + va = (vm_offset_t)addr; + if (!VIRT_IS_VALID(va)) { + db_printf("malformed virtual address %#lx\n", va); + return; + } + + if (kdb_thread != NULL) + pmap = vmspace_pmap(kdb_thread->td_proc->p_vmspace); + else + pmap = PCPU_GET(curpmap); + + db_printf("VA 0x%016lx", va); + if (pmap_mode == PMAP_MODE_SV48) { + l0 = pmap_l0(pmap, va); + l0e = pmap_load(l0); + db_printf(" l0e@0x%016lx 0x%016lx", (uint64_t)l0, l0e); + } + l1 = pmap_l1(pmap, va); + if (l1 == NULL) { + db_printf("\n"); + return; + } + l1e = pmap_load(l1); + db_printf(" l1e@0x%016lx 0x%016lx", (uint64_t)l1, l1e); + + l2 = pmap_l2(pmap, va); + if (l2 == NULL) { + db_printf("\n"); + return; + } + l2e = pmap_load(l2); + db_printf(" l2e@0x%016lx 0x%016lx", (uint64_t)l2, l2e); + + l3 = pmap_l3(pmap, va); + if (l3 == NULL) { + db_printf("\n"); + return; + } + l3e = pmap_load(l3); + db_printf(" l3e@0x%016lx 0x%016lx\n", (uint64_t)l3, l3e); +} +#endif