[v2,0/9] tcg: support 32-bit guest addresses as signed

Message ID	20220227020413.11741-1-richard.henderson@linaro.org
Headers	show Delivered-To: patch@linaro.org Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; From: Richard Henderson <richard.henderson@linaro.org> To: qemu-devel@nongnu.org Subject: [PATCH v2 0/9] tcg: support 32-bit guest addresses as signed Date: Sat, 26 Feb 2022 16:04:04 -1000 Message-Id: <20220227020413.11741-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1035; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1035.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action Precedence: list Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+patch=linaro.org@nongnu.org>
Series	tcg: support 32-bit guest addresses as signed \| expand [v2,0/9] tcg: support 32-bit guest addresses as signed [v2,1/9] tcg: Add TCG_TARGET_SIGNED_ADDR32 [v2,2/9] accel/tcg: Split out g2h_tlbe [v2,3/9] accel/tcg: Support TCG_TARGET_SIGNED_ADDR32 for softmmu [v2,4/9] accel/tcg: Add guest_base_signed_addr32 for user-only [v2,5/9] linux-user: Support TCG_TARGET_SIGNED_ADDR32 [v2,6/9] tcg/aarch64: Support TCG_TARGET_SIGNED_ADDR32 [v2,7/9] tcg/mips: Support TCG_TARGET_SIGNED_ADDR32 [v2,8/9] tcg/riscv: Support TCG_TARGET_SIGNED_ADDR32 [v2,9/9] tcg/loongarch64: Support TCG_TARGET_SIGNED_ADDR32

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20220227020413.11741-1-richard.henderson@linaro.org

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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PATCH v2 0/9] tcg: support 32-bit guest addresses as signed
Date: Sat, 26 Feb 2022 16:04:04 -1000
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Series

tcg: support 32-bit guest addresses as signed | expand

Message

Richard Henderson Feb. 27, 2022, 2:04 a.m. UTC

We have 3 hosts that naturally produce sign-extended values,
and have to work extra hard (with 1 or 2 insns) to produce
the zero-extended address that we expect today.

However, it's a simple matter of arithmetic for the middle-end
to require sign-extended addresses instead.  For user-only, we
do have to be careful not to allow a guest object to wrap around
the signed boundary, but that's fairly easily done.

Tested with aarch64, as that's the best hw currently available.

Patches lacking review:
  03-accel-tcg-Support-TCG_TARGET_SIGNED_ADDR32-for-so.patch
  06-tcg-aarch64-Support-TCG_TARGET_SIGNED_ADDR32.patch
  07-tcg-mips-Support-TCG_TARGET_SIGNED_ADDR32.patch
  09-tcg-loongarch64-Support-TCG_TARGET_SIGNED_ADDR32.patch (new)


r~

Version 1: https://lore.kernel.org/qemu-devel/20211010174401.141339-1-richard.henderson@linaro.org/


Richard Henderson (9):
  tcg: Add TCG_TARGET_SIGNED_ADDR32
  accel/tcg: Split out g2h_tlbe
  accel/tcg: Support TCG_TARGET_SIGNED_ADDR32 for softmmu
  accel/tcg: Add guest_base_signed_addr32 for user-only
  linux-user: Support TCG_TARGET_SIGNED_ADDR32
  tcg/aarch64: Support TCG_TARGET_SIGNED_ADDR32
  tcg/mips: Support TCG_TARGET_SIGNED_ADDR32
  tcg/riscv: Support TCG_TARGET_SIGNED_ADDR32
  tcg/loongarch64: Support TCG_TARGET_SIGNED_ADDR32

 include/exec/cpu-all.h            | 20 +++++++--
 include/exec/cpu_ldst.h           |  3 +-
 tcg/aarch64/tcg-target-sa32.h     |  7 ++++
 tcg/arm/tcg-target-sa32.h         |  1 +
 tcg/i386/tcg-target-sa32.h        |  1 +
 tcg/loongarch64/tcg-target-sa32.h |  1 +
 tcg/mips/tcg-target-sa32.h        |  9 ++++
 tcg/ppc/tcg-target-sa32.h         |  1 +
 tcg/riscv/tcg-target-sa32.h       |  5 +++
 tcg/s390x/tcg-target-sa32.h       |  1 +
 tcg/sparc/tcg-target-sa32.h       |  1 +
 tcg/tci/tcg-target-sa32.h         |  1 +
 accel/tcg/cputlb.c                | 36 +++++++++++-----
 bsd-user/main.c                   |  4 ++
 linux-user/elfload.c              | 62 +++++++++++++++++++++------
 linux-user/main.c                 |  3 ++
 tcg/tcg.c                         |  4 ++
 tcg/aarch64/tcg-target.c.inc      | 69 ++++++++++++++++++++-----------
 tcg/loongarch64/tcg-target.c.inc  | 15 +++----
 tcg/mips/tcg-target.c.inc         | 10 +----
 tcg/riscv/tcg-target.c.inc        |  8 +---
 21 files changed, 187 insertions(+), 75 deletions(-)
 create mode 100644 tcg/aarch64/tcg-target-sa32.h
 create mode 100644 tcg/arm/tcg-target-sa32.h
 create mode 100644 tcg/i386/tcg-target-sa32.h
 create mode 100644 tcg/loongarch64/tcg-target-sa32.h
 create mode 100644 tcg/mips/tcg-target-sa32.h
 create mode 100644 tcg/ppc/tcg-target-sa32.h
 create mode 100644 tcg/riscv/tcg-target-sa32.h
 create mode 100644 tcg/s390x/tcg-target-sa32.h
 create mode 100644 tcg/sparc/tcg-target-sa32.h
 create mode 100644 tcg/tci/tcg-target-sa32.h