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envelope-from=zycai@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Create a function to validate the address parameter of DIAGNOSE. Refactor the function for reuse in the next patch, which allows address validation in read or write operation of DIAGNOSE. Signed-off-by: Zhuoying Cai --- hw/s390x/ipl.h | 6 ++++++ target/s390x/diag.c | 4 +--- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h index bee72dfbb3..e26fc1cd6a 100644 --- a/hw/s390x/ipl.h +++ b/hw/s390x/ipl.h @@ -118,6 +118,12 @@ QEMU_BUILD_BUG_MSG(offsetof(S390IPLState, iplb) & 3, "alignment of iplb wrong"); #define S390_IPLB_MIN_FCP_LEN 384 #define S390_IPLB_MIN_QEMU_SCSI_LEN 200 +static inline bool diag_parm_addr_valid(uint64_t addr, size_t size, bool write) +{ + return address_space_access_valid(&address_space_memory, addr, + size, write, MEMTXATTRS_UNSPECIFIED); +} + static inline bool iplb_valid_len(IplParameterBlock *iplb) { return be32_to_cpu(iplb->len) <= sizeof(IplParameterBlock); diff --git a/target/s390x/diag.c b/target/s390x/diag.c index d33c5daf38..7b9b47a171 100644 --- a/target/s390x/diag.c +++ b/target/s390x/diag.c @@ -65,9 +65,7 @@ static int diag308_parm_check(CPUS390XState *env, uint64_t r1, uint64_t addr, s390_program_interrupt(env, PGM_SPECIFICATION, ra); return -1; } - if (!address_space_access_valid(&address_space_memory, addr, - sizeof(IplParameterBlock), write, - MEMTXATTRS_UNSPECIFIED)) { + if (!diag_parm_addr_valid(addr, sizeof(IplParameterBlock), write)) { s390_program_interrupt(env, PGM_ADDRESSING, ra); return -1; } -- 2.49.0