On 9/1/22 09:45, Ilya Leoshkevich wrote:
+/*
+ * For linux-user, indicates that the page is mapped with the same
semantics
+ * in both guest and host.
+ */
+#define PAGE_PASSTHROUGH 0x0800
I would expect a change to PAGE_STICKY in accel/tcg/translate-all.c, so that this bit is
preserved
In this case passthrough is safe,
> so do it.
> */
> mmap_lock();
> if ((advice & MADV_DONTNEED) &&
I would like to ping this patch and two others that I used for
debugging it:
[PATCH] linux-user: Fix stracing in-memory mmap arguments
https://patchew.org/QEMU/20220630165901.2459135-1-...@linux.ibm.com/
[PATCH] linux-user: Implement stracing madvise()
https://patchew.org/QEMU/20220725134440.172892-1-...@linux.ibm.com/
[PATCH v2] linux-user: Passthrough MADV_DONTNEED for certain file
mappings
https://patchew.org/QEMU/20220725125043.43048-1-...@linux.ibm.com/
On Mon, 2022-07-25 at 14:50 +0200, Ilya Leoshkevich wrote:
> This is a follow-up for commit 892a4f6a750a ("linux-user: Add partial
> support for MADV_DONTNEED"), which added passthrough for anonymous
> mappings. File mappings can be handled in a similar manner.
>
> In order to do that, mark
This is a follow-up for commit 892a4f6a750a ("linux-user: Add partial
support for MADV_DONTNEED"), which added passthrough for anonymous
mappings. File mappings can be handled in a similar manner.
In order to do that, mark pages, for which mmap() was passed through,
with PAGE_PASSTHROUGH, and
