[v1] tcg + linux-user patch queue

[PULL 40/47] accel/tcg: Accept more page flags in page_check_range

Richard Henderson posted 47 patches 2 years, 6 months ago

Diff against v1 v1 v1 v1 v1 v1 v1 v1 v2
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Maintainers: Richard Henderson <richard.henderson@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, Riku Voipio <riku.voipio@iki.fi>, Warner Losh <imp@bsdimp.com>, Kyle Evans <kevans@freebsd.org>, Laurent Vivier <laurent@vivier.eu>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bin.meng@windriver.com>, Weiwei Li <liweiwei@iscas.ac.cn>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Artyom Tarasenko <atar4qemu@gmail.com>

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[PULL 40/47] accel/tcg: Accept more page flags in page_check_range

Posted by Richard Henderson 2 years, 6 months ago

Only PAGE_WRITE needs special attention, all others can be
handled as we do for PAGE_READ.  Adjust the mask.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230707204054.8792-24-richard.henderson@linaro.org>
---
 accel/tcg/user-exec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c
index e4f9563730..1e8fcaf6b0 100644
--- a/accel/tcg/user-exec.c
+++ b/accel/tcg/user-exec.c
@@ -561,8 +561,8 @@ int page_check_range(target_ulong start, target_ulong len, int flags)
         }
 
         missing = flags & ~p->flags;
-        if (missing & PAGE_READ) {
-            ret = -1; /* page not readable */
+        if (missing & ~PAGE_WRITE) {
+            ret = -1; /* page doesn't match */
             break;
         }
         if (missing & PAGE_WRITE) {
-- 
2.34.1