Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20190510' into staging

Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20190510' into staging

Add CPUClass::tlb_fill.
Improve tlb_vaddr_to_host for use by ARM SVE no-fault loads.

# gpg: Signature made Fri 10 May 2019 19:48:37 BST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-tcg-20190510: (27 commits)
  tcg: Use tlb_fill probe from tlb_vaddr_to_host
  tcg: Remove CPUClass::handle_mmu_fault
  tcg: Use CPUClass::tlb_fill in cputlb.c
  target/xtensa: Convert to CPUClass::tlb_fill
  target/unicore32: Convert to CPUClass::tlb_fill
  target/tricore: Convert to CPUClass::tlb_fill
  target/tilegx: Convert to CPUClass::tlb_fill
  target/sparc: Convert to CPUClass::tlb_fill
  target/sh4: Convert to CPUClass::tlb_fill
  target/s390x: Convert to CPUClass::tlb_fill
  target/riscv: Convert to CPUClass::tlb_fill
  target/ppc: Convert to CPUClass::tlb_fill
  target/openrisc: Convert to CPUClass::tlb_fill
  target/nios2: Convert to CPUClass::tlb_fill
  target/moxie: Convert to CPUClass::tlb_fill
  target/mips: Convert to CPUClass::tlb_fill
  target/mips: Tidy control flow in mips_cpu_handle_mmu_fault
  target/mips: Pass a valid error to raise_mmu_exception for user-only
  target/microblaze: Convert to CPUClass::tlb_fill
  target/m68k: Convert to CPUClass::tlb_fill
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>