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From: David Hildenbrand <david@redhat.com>
To: qemu-devel@nongnu.org
Cc: Thomas Huth <thuth@redhat.com>, Riku Voipio <riku.voipio@iki.fi>,
	Eduardo Habkost <ehabkost@redhat.com>,
	David Hildenbrand <david@redhat.com>,
	Aleksandar Rikalo <arikalo@wavecomp.com>,
	Cornelia Huck <cohuck@redhat.com>,
	Aleksandar Markovic <amarkovic@wavecomp.com>,
	qemu-s390x@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>,
	Aurelien Jarno <aurelien@aurel32.net>,
	Richard Henderson <rth@twiddle.net>
Subject: [Qemu-devel] [PATCH v1 0/9] tcg: probe_write() refactorings and watchpoints
Date: Fri, 23 Aug 2019 12:07:32 +0200
Message-ID: <20190823100741.9621-1-david@redhat.com> (raw)

Fix and refactore some things around probe_write() in s390x code. Introduce
probe_write() for CONFIG_USER_ONLY. Finally, prepare the watchpoint logic
for being called from probe_write() and add the call.

This is the first step of some changes necessary to handle fault-safe
access accross multiple pages on s390x. The next step is making
probe_write() return an address, similar to tlb_vaddr_to_host(), and
introduing probe_read().

Cc: Richard Henderson <rth@twiddle.net>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Aleksandar Markovic <amarkovic@wavecomp.com>
Cc: Aleksandar Rikalo <arikalo@wavecomp.com>
Cc: Cornelia Huck <cohuck@redhat.com>

David Hildenbrand (9):
  s390x/tcg: Use guest_addr_valid() instead of h2g_valid() in
    probe_write_access()
  s390x/tcg: Fix length calculation in probe_write_access()
  tcg: Factor out CONFIG_USER_ONLY probe_write() from s390x code
  tcg: Enforce single page access in probe_write() for !CONFIG_USER_ONLY
  mips/tcg: Call probe_write() for CONFIG_USER_ONLY as well
  hppa/tcg: Call probe_write() also for CONFIG_USER_ONLY
  s390x/tcg: Pass a size to probe_write() in do_csst()
  exec.c: Factor out core logic of check_watchpoint()
  tcg: Check for watchpoints in probe_write()

 accel/tcg/cputlb.c        | 18 ++++++++++++++++++
 accel/tcg/user-exec.c     | 16 ++++++++++++++++
 exec.c                    | 23 +++++++++++++++++------
 include/exec/exec-all.h   |  4 ++--
 include/hw/core/cpu.h     |  2 ++
 target/hppa/op_helper.c   |  2 --
 target/mips/op_helper.c   |  8 +++-----
 target/s390x/mem_helper.c | 13 ++-----------
 8 files changed, 60 insertions(+), 26 deletions(-)

-- 
2.21.0



             reply index

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-23 10:07 David Hildenbrand [this message]
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 1/9] s390x/tcg: Use guest_addr_valid() instead of h2g_valid() in probe_write_access() David Hildenbrand
2019-08-23 14:49   ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 2/9] s390x/tcg: Fix length calculation " David Hildenbrand
2019-08-23 14:50   ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 3/9] tcg: Factor out CONFIG_USER_ONLY probe_write() from s390x code David Hildenbrand
2019-08-23 15:17   ` Richard Henderson
2019-08-23 15:22   ` Richard Henderson
2019-08-23 15:49     ` David Hildenbrand
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 4/9] tcg: Enforce single page access in probe_write() for !CONFIG_USER_ONLY David Hildenbrand
2019-08-23 15:28   ` Richard Henderson
2019-08-23 15:29     ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 5/9] mips/tcg: Call probe_write() for CONFIG_USER_ONLY as well David Hildenbrand
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 6/9] hppa/tcg: Call probe_write() also for CONFIG_USER_ONLY David Hildenbrand
2019-08-23 15:31   ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 7/9] s390x/tcg: Pass a size to probe_write() in do_csst() David Hildenbrand
2019-08-23 15:32   ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 8/9] exec.c: Factor out core logic of check_watchpoint() David Hildenbrand
2019-08-23 11:27   ` David Hildenbrand
2019-08-23 16:09     ` Richard Henderson
2019-08-23 18:25       ` David Hildenbrand
2019-08-24 15:27     ` Richard Henderson
2019-08-23 10:07 ` [Qemu-devel] [PATCH v1 9/9] tcg: Check for watchpoints in probe_write() David Hildenbrand
2019-08-23 16:15   ` Richard Henderson
2019-08-24 19:45   ` Richard Henderson

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