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Fri, 08 Sep 2023 21:33:54 -0700 (PDT) From: Karim Taha To: qemu-devel@nongnu.org Cc: imp@bsdimp.com, Stacey Son , Karim Taha Subject: [PATCH v2 17/23] bsd-user: Implement mincore(2) Date: Thu, 7 Sep 2023 09:42:56 +0200 Message-ID: <20230907074302.79234-18-kariem.taha2.7@gmail.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230907074302.79234-1-kariem.taha2.7@gmail.com> References: <20230907074302.79234-1-kariem.taha2.7@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::330; envelope-from=kariem.taha2.7@gmail.com; helo=mail-wm1-x330.google.com X-Spam_score_int: -4 X-Spam_score: -0.5 X-Spam_bar: / X-Spam_report: (-0.5 / 5.0 requ) BAYES_00=-1.9, DATE_IN_PAST_24_48=1.34, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Stacey Son Signed-off-by: Stacey Son Signed-off-by: Karim Taha --- bsd-user/bsd-mem.h | 22 ++++++++++++++++++++++ bsd-user/freebsd/os-syscall.c | 4 ++++ 2 files changed, 26 insertions(+) diff --git a/bsd-user/bsd-mem.h b/bsd-user/bsd-mem.h index 0e16051418..1dabbe36e6 100644 --- a/bsd-user/bsd-mem.h +++ b/bsd-user/bsd-mem.h @@ -189,4 +189,26 @@ static inline abi_long do_bsd_minherit(abi_long addr, abi_long len, return get_errno(minherit(g2h_untagged(addr), len, inherit)); } +/* mincore(2) */ +static inline abi_long do_bsd_mincore(abi_ulong target_addr, abi_ulong len, + abi_ulong target_vec) +{ + abi_long ret; + void *p; + abi_ulong vec_len = DIV_ROUND_UP(len,TARGET_PAGE_SIZE); + + if (!guest_range_valid_untagged(target_addr,len) || !page_check_range(target_addr, len, PAGE_VALID)) { + return -TARGET_EFAULT; + } + + p = lock_user(VERIFY_WRITE, target_vec, vec_len, 0); + if (p == NULL) { + return -TARGET_EFAULT; + } + ret = get_errno(mincore(g2h_untagged(target_addr), len, p)); + unlock_user(p, target_vec, 0); + + return ret; +} + #endif /* BSD_USER_BSD_MEM_H */ diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c index f5d60cf902..8d1cf3b35c 100644 --- a/bsd-user/freebsd/os-syscall.c +++ b/bsd-user/freebsd/os-syscall.c @@ -527,6 +527,10 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1, ret = do_bsd_minherit(arg1, arg2, arg3); break; + case TARGET_FREEBSD_NR_mincore: /* mincore(2) */ + ret = do_bsd_mincore(arg1, arg2, arg3); + break; + #if defined(__FreeBSD_version) && __FreeBSD_version >= 1300048 case TARGET_FREEBSD_NR_shm_open2: /* shm_open2(2) */ ret = do_freebsd_shm_open2(arg1, arg2, arg3, arg4, arg5);