From: "Alex Bennée" <alex.bennee@linaro.org>
To: Richard Henderson <richard.henderson@linaro.org>
Cc: pbonzini@redhat.com, philmd@linaro.org, laurent@vivier.eu,
deller@gmx.de, qemu-devel@nongnu.org
Subject: Re: [PATCH for-8.1 v10 14/14] linux-user: Rewrite non-fixed probe_guest_base
Date: Tue, 08 Aug 2023 17:58:24 +0100 [thread overview]
Message-ID: <878ral79oo.fsf@linaro.org> (raw)
In-Reply-To: <20230807163705.9848-15-richard.henderson@linaro.org>
Richard Henderson <richard.henderson@linaro.org> writes:
> Use pgb_addr_set to probe for all of the guest addresses,
> not just the main executable. Handle the identity map
> specially and separately from the search.
>
> If /proc/self/maps is available, utilize the full power
> of the interval tree search, rather than a linear search
> through the address list.
>
> If /proc/self/maps is not available, increase the skip
> between probes so that we do not probe every single page
> of the host address space. Choose 1 MiB for 32-bit hosts
> (max 4k probes) and 1 GiB for 64-bit hosts (possibly a
> large number of probes, but the large step makes it more
> likely to find empty space quicker).
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
--
Alex Bennée
Virtualisation Tech Lead @ Linaro
next prev parent reply other threads:[~2023-08-08 16:59 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-07 16:36 [PATCH for-8.1 v10 00/14] linux-user: image mapping fixes Richard Henderson
2023-08-07 16:36 ` [PATCH for-8.1 v10 01/14] linux-user: Adjust task_unmapped_base for reserved_va Richard Henderson
2023-08-08 9:10 ` Alex Bennée
2023-08-08 15:16 ` Richard Henderson
2023-08-08 16:59 ` Alex Bennée
2023-08-08 17:40 ` Richard Henderson
2023-08-08 15:35 ` Helge Deller
2023-08-07 16:36 ` [PATCH for-8.1 v10 02/14] linux-user: Define TASK_UNMAPPED_BASE in $guest/target_mman.h Richard Henderson
2023-08-08 9:19 ` Alex Bennée
2023-08-07 16:36 ` [PATCH for-8.1 v10 03/14] linux-user: Define ELF_ET_DYN_BASE " Richard Henderson
2023-08-07 16:36 ` [PATCH for-8.1 v10 04/14] linux-user: Use MAP_FIXED_NOREPLACE for initial image mmap Richard Henderson
2023-08-08 9:43 ` Alex Bennée
2023-08-08 11:57 ` Akihiko Odaki
2023-08-08 13:48 ` Alex Bennée
2023-08-08 14:08 ` Akihiko Odaki
2023-08-08 14:20 ` Alex Bennée
2023-08-07 16:36 ` [PATCH for-8.1 v10 05/14] linux-user: Use elf_et_dyn_base for ET_DYN with interpreter Richard Henderson
2023-08-08 9:49 ` Alex Bennée
2023-08-07 16:36 ` [PATCH for-8.1 v10 06/14] linux-user: Adjust initial brk when interpreter is close to executable Richard Henderson
2023-08-08 10:54 ` Alex Bennée
2023-08-07 16:36 ` [PATCH for-8.1 v10 07/14] linux-user: Do not adjust image mapping for host page size Richard Henderson
2023-08-08 10:59 ` Alex Bennée
2023-08-07 16:36 ` [PATCH for-8.1 v10 08/14] linux-user: Do not adjust zero_bss " Richard Henderson
2023-08-08 11:38 ` Alex Bennée
2023-08-08 15:56 ` Richard Henderson
2023-08-07 16:37 ` [PATCH for-8.1 v10 09/14] linux-user: Use zero_bss for PT_LOAD with no file contents too Richard Henderson
2023-08-08 11:43 ` Alex Bennée
2023-08-07 16:37 ` [PATCH for-8.1 v10 10/14] util/selfmap: Rewrite using qemu/interval-tree.h Richard Henderson
2023-08-07 18:17 ` Richard Henderson
2023-08-09 15:11 ` Fix interval_tree_iter_first() to check root node value Helge Deller
2023-08-09 15:23 ` Richard Henderson
2023-08-09 15:53 ` Helge Deller
2023-08-09 16:33 ` Richard Henderson
2023-08-10 21:31 ` [PATCH for-8.1 v10 10/14] util/selfmap: Rewrite using qemu/interval-tree.h Ilya Leoshkevich
2023-08-10 22:06 ` Helge Deller
2023-08-08 6:15 ` Michael Tokarev
2023-08-07 16:37 ` [PATCH for-8.1 v10 11/14] linux-user: Remove duplicate CPU_LOG_PAGE from probe_guest_base Richard Henderson
2023-08-08 11:45 ` Alex Bennée
2023-08-07 16:37 ` [PATCH for-8.1 v10 12/14] linux-user: Consolidate guest bounds check in probe_guest_base Richard Henderson
2023-08-08 11:46 ` Alex Bennée
2023-08-07 16:37 ` [PATCH for-8.1 v10 13/14] linux-user: Rewrite fixed probe_guest_base Richard Henderson
2023-08-08 16:39 ` Alex Bennée
2023-08-07 16:37 ` [PATCH for-8.1 v10 14/14] linux-user: Rewrite non-fixed probe_guest_base Richard Henderson
2023-08-08 16:58 ` Alex Bennée [this message]
2023-08-08 17:00 ` [PATCH for-8.1 v10 00/14] linux-user: image mapping fixes Alex Bennée
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