From 2f7828b5729337c61e6c58466d0d78af079db42d Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 6 Mar 2023 20:38:30 -0800 Subject: linux-user: Diagnose misaligned -R size MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We have been enforcing host page alignment for the non-R fallback of MAX_RESERVED_VA, but failing to enforce for -R. Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- linux-user/main.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/linux-user/main.c b/linux-user/main.c index 4b18461..39d9bd4 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -793,6 +793,12 @@ int main(int argc, char **argv, char **envp) */ max_reserved_va = MAX_RESERVED_VA(cpu); if (reserved_va != 0) { + if (reserved_va % qemu_host_page_size) { + char *s = size_to_str(qemu_host_page_size); + fprintf(stderr, "Reserved virtual address not aligned mod %s\n", s); + g_free(s); + exit(EXIT_FAILURE); + } if (max_reserved_va && reserved_va > max_reserved_va) { fprintf(stderr, "Reserved virtual address too big\n"); exit(EXIT_FAILURE); -- cgit v1.1