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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: r.bolshakov@yadro.com, j@getutm.app
Subject: [PATCH 24/26] util/osdep: Add qemu_mprotect_rw
Date: Wed, 10 Mar 2021 18:21:54 -0600	[thread overview]
Message-ID: <20210311002156.253711-25-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210311002156.253711-1-richard.henderson@linaro.org>

For --enable-tcg-interpreter on Windows, we will need this.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/qemu/osdep.h | 1 +
 util/osdep.c         | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index ba15be9c56..5cc2e57bdf 100644
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -494,6 +494,7 @@ void sigaction_invoke(struct sigaction *action,
 #endif
 
 int qemu_madvise(void *addr, size_t len, int advice);
+int qemu_mprotect_rw(void *addr, size_t size);
 int qemu_mprotect_rwx(void *addr, size_t size);
 int qemu_mprotect_none(void *addr, size_t size);
 
diff --git a/util/osdep.c b/util/osdep.c
index 66d01b9160..42a0a4986a 100644
--- a/util/osdep.c
+++ b/util/osdep.c
@@ -97,6 +97,15 @@ static int qemu_mprotect__osdep(void *addr, size_t size, int prot)
 #endif
 }
 
+int qemu_mprotect_rw(void *addr, size_t size)
+{
+#ifdef _WIN32
+    return qemu_mprotect__osdep(addr, size, PAGE_READWRITE);
+#else
+    return qemu_mprotect__osdep(addr, size, PROT_READ | PROT_WRITE);
+#endif
+}
+
 int qemu_mprotect_rwx(void *addr, size_t size)
 {
 #ifdef _WIN32
-- 
2.25.1



  parent reply	other threads:[~2021-03-11  0:47 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-11  0:21 [PATCH 00/26] tcg: Workaround macOS 11.2 mprotect bug Richard Henderson
2021-03-11  0:21 ` [PATCH 01/26] meson: Split out tcg/meson.build Richard Henderson
2021-03-13 17:36   ` Philippe Mathieu-Daudé
2021-03-11  0:21 ` [PATCH 02/26] meson: Move disas/tci.c to disas/meson.build Richard Henderson
2021-03-13 17:36   ` Philippe Mathieu-Daudé
2021-03-13 18:46   ` Richard Henderson
2021-03-11  0:21 ` [PATCH 03/26] meson: Split out fpu/meson.build Richard Henderson
2021-03-13 17:37   ` Philippe Mathieu-Daudé
2021-03-11  0:21 ` [PATCH 04/26] tcg: Re-order tcg_region_init vs tcg_prologue_init Richard Henderson
2021-03-11  0:21 ` [PATCH 05/26] tcg: Remove error return from tcg_region_initial_alloc__locked Richard Henderson
2021-03-13 17:37   ` Philippe Mathieu-Daudé
2021-03-11  0:21 ` [PATCH 06/26] tcg: Split out tcg_region_initial_alloc Richard Henderson
2021-03-11  0:21 ` [PATCH 07/26] tcg: Split out tcg_region_prologue_set Richard Henderson
2021-03-11  0:21 ` [PATCH 08/26] tcg: Split out region.c Richard Henderson
2021-03-11  0:21 ` [PATCH 09/26] accel/tcg: Inline cpu_gen_init Richard Henderson
2021-03-13 17:38   ` Philippe Mathieu-Daudé
2021-03-11  0:21 ` [PATCH 10/26] accel/tcg: Move alloc_code_gen_buffer to tcg/region.c Richard Henderson
2021-03-13 18:48   ` Richard Henderson
2021-03-11  0:21 ` [PATCH 11/26] accel/tcg: Rename tcg_init to tcg_init_machine Richard Henderson
2021-03-13 17:39   ` Philippe Mathieu-Daudé
2021-03-11  0:21 ` [PATCH 12/26] tcg: Create tcg_init Richard Henderson
2021-03-13 19:27   ` Philippe Mathieu-Daudé
2021-03-13 19:28     ` Richard Henderson
2021-03-11  0:21 ` [PATCH 13/26] accel/tcg: Merge tcg_exec_init into tcg_init_machine Richard Henderson
2021-03-11  0:21 ` [PATCH 14/26] accel/tcg: Pass down max_cpus to tcg_init Richard Henderson
2021-03-13 17:45   ` Philippe Mathieu-Daudé
2021-03-11  0:21 ` [PATCH 15/26] tcg: Introduce tcg_max_ctxs Richard Henderson
2021-03-13 17:48   ` Philippe Mathieu-Daudé
2021-03-11  0:21 ` [PATCH 16/26] tcg: Move MAX_CODE_GEN_BUFFER_SIZE to tcg-target.h Richard Henderson
2021-03-11  0:42   ` BALATON Zoltan
2021-03-13 16:00     ` Richard Henderson
2021-03-11  0:21 ` [PATCH 17/26] tcg: Replace region.end with region.total_size Richard Henderson
2021-03-11  0:21 ` [PATCH 18/26] tcg: Tidy tcg_n_regions Richard Henderson
2021-03-11  0:21 ` [PATCH 19/26] tcg: Tidy split_cross_256mb Richard Henderson
2021-03-11  0:21 ` [PATCH 20/26] tcg: Allocate code_gen_buffer into struct tcg_region_state Richard Henderson
2021-03-11  0:21 ` [PATCH 21/26] tcg: Return the map protection from alloc_code_gen_buffer Richard Henderson
2021-03-11  0:21 ` [PATCH 22/26] tcg: Sink qemu_madvise call to common code Richard Henderson
2021-03-11  0:21 ` [PATCH 23/26] tcg: Do not set guard pages in the rx buffer Richard Henderson
2021-03-11  0:21 ` Richard Henderson [this message]
2021-03-13 17:51   ` [PATCH 24/26] util/osdep: Add qemu_mprotect_rw Philippe Mathieu-Daudé
2021-03-11  0:21 ` [PATCH 25/26] tcg: Merge buffer protection and guard page protection Richard Henderson
2021-03-11  0:21 ` [PATCH 26/26] tcg: When allocating for !splitwx, begin with PROT_NONE Richard Henderson
2021-03-11  0:52 ` [PATCH 00/26] tcg: Workaround macOS 11.2 mprotect bug no-reply

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