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| author | Aurelien Jarno <aurelien@aurel32.net> | 2017-06-01 00:01:02 +0200 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2017-06-06 14:34:32 -0700 |
| commit | 1f58720c5fd033e4e2de1d047020b43a3cb3aa1b (patch) | |
| tree | ed90553858175dfd9ace0b06a18bd35d9b807464 /target | |
| parent | 8a4719f527484a7b9940e1c93690b01dc5ca5144 (diff) | |
| download | qemu-1f58720c5fd033e4e2de1d047020b43a3cb3aa1b.zip qemu-1f58720c5fd033e4e2de1d047020b43a3cb3aa1b.tar.gz qemu-1f58720c5fd033e4e2de1d047020b43a3cb3aa1b.tar.bz2 | |
target/s390x: implement local-TLB-clearing in IPTE
And at the same time make IPTE SMP aware.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <20170531220129.27724-4-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target')
| -rw-r--r-- | target/s390x/helper.h | 2 | ||||
| -rw-r--r-- | target/s390x/mem_helper.c | 21 | ||||
| -rw-r--r-- | target/s390x/translate.c | 6 |
3 files changed, 19 insertions, 10 deletions
diff --git a/target/s390x/helper.h b/target/s390x/helper.h index cc451c7..3f5a05d 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -111,7 +111,7 @@ DEF_HELPER_4(mvcs, i32, env, i64, i64, i64) DEF_HELPER_4(mvcp, i32, env, i64, i64, i64) DEF_HELPER_4(sigp, i32, env, i64, i32, i64) DEF_HELPER_FLAGS_2(sacf, TCG_CALL_NO_WG, void, env, i64) -DEF_HELPER_FLAGS_3(ipte, TCG_CALL_NO_RWG, void, env, i64, i64) +DEF_HELPER_FLAGS_4(ipte, TCG_CALL_NO_RWG, void, env, i64, i64, i32) DEF_HELPER_FLAGS_1(ptlb, TCG_CALL_NO_RWG, void, env) DEF_HELPER_FLAGS_1(purge, TCG_CALL_NO_RWG, void, env) DEF_HELPER_2(lra, i64, env, i64) diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index 0ebd65d..ddbebcd 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -1073,17 +1073,16 @@ uint32_t HELPER(mvcp)(CPUS390XState *env, uint64_t l, uint64_t a1, uint64_t a2) } /* invalidate pte */ -void HELPER(ipte)(CPUS390XState *env, uint64_t pto, uint64_t vaddr) +void HELPER(ipte)(CPUS390XState *env, uint64_t pto, uint64_t vaddr, + uint32_t m4) { CPUState *cs = CPU(s390_env_get_cpu(env)); uint64_t page = vaddr & TARGET_PAGE_MASK; uint64_t pte_addr, pte; - /* XXX broadcast to other CPUs */ - /* Compute the page table entry address */ pte_addr = (pto & _SEGMENT_ENTRY_ORIGIN); - pte_addr += (vaddr & _VADDR_PX) >> 9; + pte_addr += (vaddr & VADDR_PX) >> 9; /* Mark the page table entry as invalid */ pte = ldq_phys(cs->as, pte_addr); @@ -1092,13 +1091,19 @@ void HELPER(ipte)(CPUS390XState *env, uint64_t pto, uint64_t vaddr) /* XXX we exploit the fact that Linux passes the exact virtual address here - it's not obliged to! */ - tlb_flush_page(cs, page); + /* XXX: the LC bit should be considered as 0 if the local-TLB-clearing + facility is not installed. */ + if (m4 & 1) { + tlb_flush_page(cs, page); + } else { + tlb_flush_page_all_cpus_synced(cs, page); + } /* XXX 31-bit hack */ - if (page & 0x80000000) { - tlb_flush_page(cs, page & ~0x80000000); + if (m4 & 1) { + tlb_flush_page(cs, page ^ 0x80000000); } else { - tlb_flush_page(cs, page | 0x80000000); + tlb_flush_page_all_cpus_synced(cs, page ^ 0x80000000); } } diff --git a/target/s390x/translate.c b/target/s390x/translate.c index 67ddf1b..0a1b3b3 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -2357,8 +2357,12 @@ static ExitStatus op_ipm(DisasContext *s, DisasOps *o) #ifndef CONFIG_USER_ONLY static ExitStatus op_ipte(DisasContext *s, DisasOps *o) { + TCGv_i32 m4; + check_privileged(s); - gen_helper_ipte(cpu_env, o->in1, o->in2); + m4 = tcg_const_i32(get_field(s->fields, m4)); + gen_helper_ipte(cpu_env, o->in1, o->in2, m4); + tcg_temp_free_i32(m4); return NO_EXIT; } |