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| author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2016-09-20 22:05:01 +0530 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2016-09-23 12:39:07 +1000 |
| commit | d76ab5e1c7db5f064700b9c3cb0924ccfd9017e5 (patch) | |
| tree | 02a6851b90b0fe8d6cede2dd4c0041ee416336b3 /target-ppc/translate.c | |
| parent | e3cffe6fad29e07d401eabb913a6d88501d5c143 (diff) | |
| download | qemu-d76ab5e1c7db5f064700b9c3cb0924ccfd9017e5.tar.gz | |
target-ppc: tlbie/tlbivax should have global effect
tlbie (BookS) and tlbivax (BookE) plus the H_CALLs(pseries) should have
a global effect.
Introduces TLB_NEED_GLOBAL_FLUSH flag. During lazy tlb flush, after
taking care of pending local flushes, check broadcast flush(at context
synchronizing event ptesync/tlbsync, etc) is needed. Depending on the
bitmask state of the tlb_need_flush, tlb is flushed from other cpus if
needed and the flags are cleared.
Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[dwg: Use 'true' instead of '1' for call to check_tlb_flush()]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target-ppc/translate.c')
| -rw-r--r-- | target-ppc/translate.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 3514f1dc21..8eefd8231d 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -4441,6 +4441,7 @@ static void gen_tlbie(DisasContext *ctx) #if defined(CONFIG_USER_ONLY) GEN_PRIV; #else + TCGv_i32 t1; CHK_HV; if (NARROW_MODE(ctx)) { @@ -4451,6 +4452,11 @@ static void gen_tlbie(DisasContext *ctx) } else { gen_helper_tlbie(cpu_env, cpu_gpr[rB(ctx->opcode)]); } + t1 = tcg_temp_new_i32(); + tcg_gen_ld_i32(t1, cpu_env, offsetof(CPUPPCState, tlb_need_flush)); + tcg_gen_ori_i32(t1, t1, TLB_NEED_GLOBAL_FLUSH); + tcg_gen_st_i32(t1, cpu_env, offsetof(CPUPPCState, tlb_need_flush)); + tcg_temp_free_i32(t1); #endif /* defined(CONFIG_USER_ONLY) */ } |