OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

Pull request linux-user 20220812 

-----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEEzS913cjjpNwuT1Fz8ww4vT8vvjwFAmL2LIUSHGxhdXJlbnRA
 dml2aWVyLmV1AAoJEPMMOL0/L748L8QP/iHtv9fsHZe7ANCMd2UjpPo5CZTJxMEa
 T8muaNasIJPoZbQR5WJRsCT8j5lNriWYA/xEBYGYlzvn/ZBK+NnUlBYrRFUX3LwQ
 Oim9gBYReW7nkv2m1Vr5mYXeC1bth4GMqycHSjwJtosYJsp/oTpcQE22/iG3MFBW
 azu+yM/QV7yuoi6EFyuUq5hefQE139W333x01c3qsekVY4cr4Bc81cpsQhWw/4Y4
 e32byrT39vtBvRlC/CuikZXyMqbD+nK+hESkJ9oqI73raC4PaCg10WNHMr1m/pw1
 ITPeH6iphVmyOckidHsbBLDkC4FQEVNo9R4j13Nk2gqU3VyLk73Say2GGvXrUEBJ
 a50XvV897N1M8ZiRUifYnNgawtO7sIOuQViofQtCcIfal9h2AV5Zjnm/5tJXGpnB
 F0U7hi5bootHtJFMLCBOWLhWVT7SNrzi1ijCFs2irj6grSyvJ9LU7yRHj0pOVC43
 WopdzPuxBWye8jRo2YgDQx5BZkBtlmWJgfbhYL3QVFX5wp8vqAgdXl0dXqdid5RN
 5RCdBj9HAFwEUqL8n4LVI0EbrjI/IQlVwhZmBjQx3lBh4o08d7AUGUSQnZHDcy3C
 W6dTkfqPleqdOw5xS9Rw3rHJPHcuGWQNA4MMyvztbMivU/TYN7fwBdXouI9KeeBk
 wfYTi+n/bkeR
 =4v8b
 -----END PGP SIGNATURE-----

Merge tag 'linux-user-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu into staging

Pull request linux-user 20220812

# -----BEGIN PGP SIGNATURE-----
#
# iQJGBAABCAAwFiEEzS913cjjpNwuT1Fz8ww4vT8vvjwFAmL2LIUSHGxhdXJlbnRA
# dml2aWVyLmV1AAoJEPMMOL0/L748L8QP/iHtv9fsHZe7ANCMd2UjpPo5CZTJxMEa
# T8muaNasIJPoZbQR5WJRsCT8j5lNriWYA/xEBYGYlzvn/ZBK+NnUlBYrRFUX3LwQ
# Oim9gBYReW7nkv2m1Vr5mYXeC1bth4GMqycHSjwJtosYJsp/oTpcQE22/iG3MFBW
# azu+yM/QV7yuoi6EFyuUq5hefQE139W333x01c3qsekVY4cr4Bc81cpsQhWw/4Y4
# e32byrT39vtBvRlC/CuikZXyMqbD+nK+hESkJ9oqI73raC4PaCg10WNHMr1m/pw1
# ITPeH6iphVmyOckidHsbBLDkC4FQEVNo9R4j13Nk2gqU3VyLk73Say2GGvXrUEBJ
# a50XvV897N1M8ZiRUifYnNgawtO7sIOuQViofQtCcIfal9h2AV5Zjnm/5tJXGpnB
# F0U7hi5bootHtJFMLCBOWLhWVT7SNrzi1ijCFs2irj6grSyvJ9LU7yRHj0pOVC43
# WopdzPuxBWye8jRo2YgDQx5BZkBtlmWJgfbhYL3QVFX5wp8vqAgdXl0dXqdid5RN
# 5RCdBj9HAFwEUqL8n4LVI0EbrjI/IQlVwhZmBjQx3lBh4o08d7AUGUSQnZHDcy3C
# W6dTkfqPleqdOw5xS9Rw3rHJPHcuGWQNA4MMyvztbMivU/TYN7fwBdXouI9KeeBk
# wfYTi+n/bkeR
# =4v8b
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 12 Aug 2022 03:33:41 AM PDT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [undefined]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [undefined]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* tag 'linux-user-for-7.1-pull-request' of https://gitlab.com/laurent_vivier/qemu:
  linux-user/aarch64: Reset target data on MADV_DONTNEED

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-08-12 08:13:23 -07:00
parent a6b1c53e79 dbbf89751b
commit 6add03bec0
3 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
accel/tcg/translate-all.c
View File

@ -2314,6 +2314,32 @@ void page_set_flags(target_ulong start, target_ulong end, int flags)
}
}
void page_reset_target_data(target_ulong start, target_ulong end)
{
target_ulong addr, len;
/*
* This function should never be called with addresses outside the
* guest address space. If this assert fires, it probably indicates
* a missing call to h2g_valid.
*/
assert(end - 1 <= GUEST_ADDR_MAX);
assert(start < end);
assert_memory_lock();
start = start & TARGET_PAGE_MASK;
end = TARGET_PAGE_ALIGN(end);
for (addr = start, len = end - start;
len != 0;
len -= TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) {
PageDesc *p = page_find_alloc(addr >> TARGET_PAGE_BITS, 1);
g_free(p->target_data);
p->target_data = NULL;
}
}
void *page_get_target_data(target_ulong address)
{
PageDesc *p = page_find(address >> TARGET_PAGE_BITS);

1
include/exec/cpu-all.h
View File

@ -271,6 +271,7 @@ int walk_memory_regions(void *, walk_memory_regions_fn);
int page_get_flags(target_ulong address);
void page_set_flags(target_ulong start, target_ulong end, int flags);
void page_reset_target_data(target_ulong start, target_ulong end);
int page_check_range(target_ulong start, target_ulong len, int flags);
/**

3
linux-user/mmap.c
View File

@ -894,6 +894,9 @@ abi_long target_madvise(abi_ulong start, abi_ulong len_in, int advice)
if (advice == MADV_DONTNEED &&
can_passthrough_madv_dontneed(start, end)) {
ret = get_errno(madvise(g2h_untagged(start), len, MADV_DONTNEED));
if (ret == 0) {
page_reset_target_data(start, start + len);
}
}
mmap_unlock();