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Fri, 08 Sep 2023 21:33:50 -0700 (PDT) From: Karim Taha To: qemu-devel@nongnu.org Cc: imp@bsdimp.com, Stacey Son , Kyle Evans , Karim Taha , Richard Henderson Subject: [PATCH v2 14/23] bsd-user: Implement msync(2) Date: Thu, 7 Sep 2023 09:42:53 +0200 Message-ID: <20230907074302.79234-15-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::42f; envelope-from=kariem.taha2.7@gmail.com; helo=mail-wr1-x42f.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 Co-authored-by: Kyle Evans Signed-off-by: Stacey Son Signed-off-by: Kyle Evans Signed-off-by: Karim Taha Reviewed-by: Warner Losh Reviewed-by: Richard Henderson --- bsd-user/bsd-mem.h | 11 +++++++++++ bsd-user/freebsd/os-syscall.c | 4 ++++ 2 files changed, 15 insertions(+) diff --git a/bsd-user/bsd-mem.h b/bsd-user/bsd-mem.h index 0f9e4a1d4b..5e885823a7 100644 --- a/bsd-user/bsd-mem.h +++ b/bsd-user/bsd-mem.h @@ -88,4 +88,15 @@ static inline abi_long do_bsd_mprotect(abi_long arg1, abi_long arg2, return get_errno(target_mprotect(arg1, arg2, arg3)); } +/* msync(2) */ +static inline abi_long do_bsd_msync(abi_long addr, abi_long len, abi_long flags) +{ + if (!guest_range_valid_untagged(addr, len)) { + /* It seems odd, but POSIX wants this to be ENOMEM */ + return -TARGET_ENOMEM; + } + + return get_errno(msync(g2h_untagged(addr), len, flags)); +} + #endif /* BSD_USER_BSD_MEM_H */ diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c index 127805e079..859492dee7 100644 --- a/bsd-user/freebsd/os-syscall.c +++ b/bsd-user/freebsd/os-syscall.c @@ -499,6 +499,10 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1, ret = do_bsd_mprotect(arg1, arg2, arg3); break; + case TARGET_FREEBSD_NR_msync: /* msync(2) */ + ret = do_bsd_msync(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);